./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-tiling/mbpr4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-tiling/mbpr4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8 --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 d3770c63a87ff983494c9353997301d9eb30588c650f83b67bcf55f325443055 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:39:45,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:39:45,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:39:45,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:39:45,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:39:45,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:39:45,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:39:45,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:39:45,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:39:45,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:39:45,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:39:45,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:39:45,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:39:45,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:39:45,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:39:45,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:39:45,324 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:39:45,325 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:39:45,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:39:45,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:39:45,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:39:45,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:39:45,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:39:45,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:39:45,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:39:45,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:39:45,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:39:45,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:39:45,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:39:45,346 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:39:45,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:39:45,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:39:45,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:39:45,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:39:45,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:39:45,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:39:45,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:39:45,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:39:45,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:39:45,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:39:45,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:39:45,357 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:39:45,385 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:39:45,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:39:45,386 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:39:45,387 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:39:45,387 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:39:45,387 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:39:45,388 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:39:45,388 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:39:45,388 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:39:45,388 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:39:45,389 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:39:45,389 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:39:45,389 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:39:45,390 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:39:45,390 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:39:45,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:39:45,391 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:39:45,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:39:45,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:39:45,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:39:45,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:39:45,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:39:45,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:39:45,394 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:39:45,394 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:39:45,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:39:45,394 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:39:45,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:39:45,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:39:45,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:39:45,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:39:45,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:39:45,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:39:45,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:39:45,396 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:39:45,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:39:45,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:39:45,397 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:39:45,397 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:39:45,398 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_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3770c63a87ff983494c9353997301d9eb30588c650f83b67bcf55f325443055 [2021-11-07 01:39:45,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:39:45,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:39:45,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:39:45,696 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:39:45,697 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:39:45,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/array-tiling/mbpr4.c [2021-11-07 01:39:45,797 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/data/621fcffc0/1b30e2d5a4ad48f49557ab1cdc785d90/FLAG1840b9468 [2021-11-07 01:39:46,353 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:39:46,353 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/sv-benchmarks/c/array-tiling/mbpr4.c [2021-11-07 01:39:46,360 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/data/621fcffc0/1b30e2d5a4ad48f49557ab1cdc785d90/FLAG1840b9468 [2021-11-07 01:39:46,688 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/data/621fcffc0/1b30e2d5a4ad48f49557ab1cdc785d90 [2021-11-07 01:39:46,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:39:46,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:39:46,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:39:46,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:39:46,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:39:46,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:39:46" (1/1) ... [2021-11-07 01:39:46,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55384b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:46, skipping insertion in model container [2021-11-07 01:39:46,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:39:46" (1/1) ... [2021-11-07 01:39:46,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:39:46,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:39:46,944 WARN L228 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_89515265-02f2-45ca-9142-64257f52d72d/sv-benchmarks/c/array-tiling/mbpr4.c[396,409] [2021-11-07 01:39:46,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:39:46,991 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:39:47,005 WARN L228 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_89515265-02f2-45ca-9142-64257f52d72d/sv-benchmarks/c/array-tiling/mbpr4.c[396,409] [2021-11-07 01:39:47,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:39:47,056 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:39:47,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:47 WrapperNode [2021-11-07 01:39:47,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:39:47,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:39:47,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:39:47,058 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:39:47,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:47" (1/1) ... [2021-11-07 01:39:47,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:47" (1/1) ... [2021-11-07 01:39:47,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:39:47,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:39:47,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:39:47,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:39:47,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:47" (1/1) ... [2021-11-07 01:39:47,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:47" (1/1) ... [2021-11-07 01:39:47,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:47" (1/1) ... [2021-11-07 01:39:47,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:47" (1/1) ... [2021-11-07 01:39:47,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:47" (1/1) ... [2021-11-07 01:39:47,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:47" (1/1) ... [2021-11-07 01:39:47,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:47" (1/1) ... [2021-11-07 01:39:47,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:39:47,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:39:47,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:39:47,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:39:47,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:47" (1/1) ... [2021-11-07 01:39:47,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:39:47,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:39:47,247 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:39:47,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:39:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 01:39:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:39:47,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 01:39:47,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:39:47,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:39:47,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 01:39:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:39:47,999 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:39:48,000 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-11-07 01:39:48,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:39:48 BoogieIcfgContainer [2021-11-07 01:39:48,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:39:48,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:39:48,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:39:48,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:39:48,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:39:46" (1/3) ... [2021-11-07 01:39:48,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bcaa367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:39:48, skipping insertion in model container [2021-11-07 01:39:48,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:47" (2/3) ... [2021-11-07 01:39:48,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bcaa367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:39:48, skipping insertion in model container [2021-11-07 01:39:48,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:39:48" (3/3) ... [2021-11-07 01:39:48,017 INFO L111 eAbstractionObserver]: Analyzing ICFG mbpr4.c [2021-11-07 01:39:48,023 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:39:48,023 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:39:48,078 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:39:48,085 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 [2021-11-07 01:39:48,085 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 01:39:48,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:48,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 01:39:48,107 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:39:48,108 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:39:48,109 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:39:48,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:39:48,116 INFO L85 PathProgramCache]: Analyzing trace with hash -421576162, now seen corresponding path program 1 times [2021-11-07 01:39:48,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:39:48,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537561298] [2021-11-07 01:39:48,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:39:48,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:39:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:39:48,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:39:48,484 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:39:48,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537561298] [2021-11-07 01:39:48,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537561298] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:39:48,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:39:48,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 01:39:48,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439629602] [2021-11-07 01:39:48,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:39:48,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:39:48,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:39:48,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:39:48,507 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:48,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:39:48,571 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2021-11-07 01:39:48,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:39:48,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-07 01:39:48,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:39:48,580 INFO L225 Difference]: With dead ends: 30 [2021-11-07 01:39:48,580 INFO L226 Difference]: Without dead ends: 13 [2021-11-07 01:39:48,583 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:39:48,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-07 01:39:48,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-07 01:39:48,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:48,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2021-11-07 01:39:48,613 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 17 transitions. Word has length 10 [2021-11-07 01:39:48,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:39:48,613 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-11-07 01:39:48,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:48,614 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2021-11-07 01:39:48,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 01:39:48,615 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:39:48,615 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:39:48,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 01:39:48,615 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:39:48,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:39:48,616 INFO L85 PathProgramCache]: Analyzing trace with hash -392121662, now seen corresponding path program 1 times [2021-11-07 01:39:48,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:39:48,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273007175] [2021-11-07 01:39:48,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:39:48,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:39:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:39:48,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:39:48,835 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:39:48,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273007175] [2021-11-07 01:39:48,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273007175] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:39:48,836 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:39:48,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:39:48,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441789660] [2021-11-07 01:39:48,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:39:48,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:39:48,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:39:48,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:39:48,840 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-11-07 01:39:48,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:39:48,917 INFO L93 Difference]: Finished difference Result 23 states and 32 transitions. [2021-11-07 01:39:48,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:39:48,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 11 [2021-11-07 01:39:48,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:39:48,918 INFO L225 Difference]: With dead ends: 23 [2021-11-07 01:39:48,919 INFO L226 Difference]: Without dead ends: 16 [2021-11-07 01:39:48,920 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:39:48,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-07 01:39:48,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-07 01:39:48,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:39:48,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-11-07 01:39:48,929 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 11 [2021-11-07 01:39:48,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:39:48,929 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-11-07 01:39:48,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-11-07 01:39:48,931 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-11-07 01:39:48,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 01:39:48,933 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:39:48,933 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:39:48,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 01:39:48,935 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:39:48,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:39:48,940 INFO L85 PathProgramCache]: Analyzing trace with hash 2104031886, now seen corresponding path program 1 times [2021-11-07 01:39:48,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:39:48,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570596425] [2021-11-07 01:39:48,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:39:48,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:39:49,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:39:49,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:39:49,766 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:39:49,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570596425] [2021-11-07 01:39:49,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570596425] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:39:49,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370091372] [2021-11-07 01:39:49,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:39:49,775 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:39:49,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:39:49,779 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:39:49,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 01:39:49,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:39:49,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-07 01:39:49,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:39:50,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 118 [2021-11-07 01:39:50,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-07 01:39:50,150 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 0 case distinctions, treesize of input 93 treesize of output 74 [2021-11-07 01:39:50,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 38 [2021-11-07 01:39:50,377 INFO L354 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2021-11-07 01:39:50,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 182 treesize of output 190 [2021-11-07 01:39:50,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2021-11-07 01:39:50,463 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 0 case distinctions, treesize of input 147 treesize of output 126 [2021-11-07 01:39:50,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,500 INFO L354 Elim1Store]: treesize reduction 40, result has 14.9 percent of original size [2021-11-07 01:39:50,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 66 treesize of output 62 [2021-11-07 01:39:50,723 INFO L354 Elim1Store]: treesize reduction 147, result has 21.0 percent of original size [2021-11-07 01:39:50,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 197 treesize of output 220 [2021-11-07 01:39:50,785 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 0 case distinctions, treesize of input 172 treesize of output 149 [2021-11-07 01:39:50,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,845 INFO L354 Elim1Store]: treesize reduction 98, result has 16.9 percent of original size [2021-11-07 01:39:50,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 89 treesize of output 90 [2021-11-07 01:39:50,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:50,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 29 [2021-11-07 01:39:51,707 INFO L354 Elim1Store]: treesize reduction 260, result has 19.5 percent of original size [2021-11-07 01:39:51,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 212 treesize of output 250 [2021-11-07 01:39:51,808 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 0 case distinctions, treesize of input 193 treesize of output 168 [2021-11-07 01:39:51,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,886 INFO L354 Elim1Store]: treesize reduction 157, result has 16.9 percent of original size [2021-11-07 01:39:51,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 108 treesize of output 114 [2021-11-07 01:39:51,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 44 [2021-11-07 01:39:52,477 INFO L354 Elim1Store]: treesize reduction 84, result has 1.2 percent of original size [2021-11-07 01:39:52,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 114 treesize of output 78 [2021-11-07 01:39:52,532 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:39:52,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:39:52,916 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:52,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 296 treesize of output 296 [2021-11-07 01:39:52,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2021-11-07 01:39:52,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2021-11-07 01:39:52,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 288 treesize of output 252 [2021-11-07 01:39:53,031 INFO L354 Elim1Store]: treesize reduction 156, result has 3.1 percent of original size [2021-11-07 01:39:53,032 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 8290 treesize of output 6789 [2021-11-07 01:39:53,627 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:39:53,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370091372] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:39:53,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [181839832] [2021-11-07 01:39:53,662 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2021-11-07 01:39:53,663 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:39:53,669 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:39:53,682 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:39:53,683 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:39:53,724 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:53,726 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:53,726 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:53,727 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:39:53,728 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:53,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:53,729 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:39:53,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 01:39:53,747 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_11|], 21=[|v_#valid_20|]} [2021-11-07 01:39:53,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:53,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:53,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:53,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:39:53,760 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:53,760 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:39:53,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:53,762 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:39:53,764 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:53,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:53,791 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:53,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:53,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:53,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:53,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:53,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:53,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:53,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:53,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:53,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:53,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 01:39:53,812 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:53,814 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:39:53,815 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:53,816 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:39:53,816 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:53,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:53,827 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:53,829 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:53,830 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 01:39:53,831 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:39:53,831 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 01:39:53,844 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.6 percent of original size [2021-11-07 01:39:53,845 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:53,846 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:53,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:39:53,851 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:53,852 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:53,852 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 01:39:53,855 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-07 01:39:53,858 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_12|], 15=[|v_#valid_21|]} [2021-11-07 01:39:53,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:53,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:53,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:53,881 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 01:39:53,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-07 01:39:53,882 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:53,885 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:39:53,886 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:53,887 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:39:53,888 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:53,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:53,900 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:53,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:53,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:53,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:53,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:53,942 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-07 01:39:53,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-07 01:39:53,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:53,948 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:39:53,949 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:53,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:39:53,950 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:53,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:53,963 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:53,969 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:53,974 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-07 01:39:53,975 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:39:53,976 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:141, output treesize:142 [2021-11-07 01:39:53,994 INFO L180 QuantifierPusher]: treesize reduction 50, result has 89.2 percent of original size [2021-11-07 01:39:53,997 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:53,998 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:53,999 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:54,000 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:54,001 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 392 [2021-11-07 01:39:54,002 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 392 [2021-11-07 01:39:54,003 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:54,004 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:54,005 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:54,006 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:54,006 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-11-07 01:39:54,007 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:54,008 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:54,008 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-11-07 01:39:54,009 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 428 [2021-11-07 01:39:54,010 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:54,010 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:54,011 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 409 [2021-11-07 01:39:54,015 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-07 01:39:54,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:54,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 192 [2021-11-07 01:39:54,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:54,056 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:54,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:54,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-11-07 01:39:54,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-11-07 01:39:54,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:54,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:54,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:54,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:54,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:54,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:54,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:54,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:54,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:54,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:54,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:54,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:54,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:54,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:54,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:54,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:54,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:54,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:54,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 49 [2021-11-07 01:39:54,102 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:54,104 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:39:54,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:54,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:39:54,106 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:54,107 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: SIMPLIFY_QUICK does not support simplification with respect to context at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:157) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:239) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.eliminateOne(ElimStorePlain.java:625) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimAllRec(ElimStorePlain.java:520) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimOneRec(ElimStorePlain.java:301) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.eliminateOne(ElimStorePlain.java:607) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimAllRec(ElimStorePlain.java:520) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:242) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:402) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.quantifier(PartialQuantifierElimination.java:228) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:279) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:98) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-07 01:39:54,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:39:54,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 6] total 27 [2021-11-07 01:39:54,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91819539] [2021-11-07 01:39:54,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-07 01:39:54,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:39:54,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-07 01:39:54,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=587, Unknown=0, NotChecked=0, Total=702 [2021-11-07 01:39:54,115 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 27 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 27 states have internal predecessors, (37), 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) [2021-11-07 01:40:03,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:40:03,974 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2021-11-07 01:40:03,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 01:40:03,975 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 27 states have internal predecessors, (37), 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 14 [2021-11-07 01:40:03,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:40:03,976 INFO L225 Difference]: With dead ends: 27 [2021-11-07 01:40:03,976 INFO L226 Difference]: Without dead ends: 25 [2021-11-07 01:40:03,977 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 10 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=412, Invalid=1228, Unknown=0, NotChecked=0, Total=1640 [2021-11-07 01:40:03,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-07 01:40:03,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 18. [2021-11-07 01:40:03,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:40:03,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2021-11-07 01:40:03,985 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 14 [2021-11-07 01:40:03,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:40:03,986 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2021-11-07 01:40:03,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 27 states have internal predecessors, (37), 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) [2021-11-07 01:40:03,987 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2021-11-07 01:40:03,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 01:40:03,987 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:40:03,988 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:40:04,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:40:04,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:40:04,210 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:40:04,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:40:04,211 INFO L85 PathProgramCache]: Analyzing trace with hash 466724679, now seen corresponding path program 1 times [2021-11-07 01:40:04,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:40:04,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046749139] [2021-11-07 01:40:04,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:40:04,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:40:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:40:04,784 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:40:04,784 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:40:04,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046749139] [2021-11-07 01:40:04,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046749139] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:40:04,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839209115] [2021-11-07 01:40:04,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:40:04,785 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:40:04,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:40:04,790 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:40:04,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 01:40:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:40:04,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-07 01:40:04,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:40:05,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 106 [2021-11-07 01:40:05,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-07 01:40:05,151 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 0 case distinctions, treesize of input 79 treesize of output 60 [2021-11-07 01:40:05,440 INFO L354 Elim1Store]: treesize reduction 821, result has 10.5 percent of original size [2021-11-07 01:40:05,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 5 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 646 treesize of output 436 [2021-11-07 01:40:05,517 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:40:05,578 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:40:05,610 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:40:05,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:05,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:05,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:05,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:05,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:05,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:05,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 25 [2021-11-07 01:40:05,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:05,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:05,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:05,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:05,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:05,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:05,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 42 [2021-11-07 01:40:05,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:05,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:05,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:05,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:05,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:05,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:05,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 51 [2021-11-07 01:40:05,740 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-07 01:40:05,740 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 52 treesize of output 32 [2021-11-07 01:40:05,863 INFO L354 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2021-11-07 01:40:05,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 194 [2021-11-07 01:40:05,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:05,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 13 [2021-11-07 01:40:05,905 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 0 case distinctions, treesize of input 149 treesize of output 128 [2021-11-07 01:40:06,471 INFO L354 Elim1Store]: treesize reduction 2161, result has 8.4 percent of original size [2021-11-07 01:40:06,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 5 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 40 case distinctions, treesize of input 1268 treesize of output 784 [2021-11-07 01:40:06,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,583 INFO L354 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-11-07 01:40:06,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 48 [2021-11-07 01:40:06,643 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:40:06,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,748 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:06,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 139 treesize of output 87 [2021-11-07 01:40:06,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,802 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:06,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 117 treesize of output 86 [2021-11-07 01:40:06,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:06,835 INFO L354 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-11-07 01:40:06,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 52 [2021-11-07 01:40:07,071 INFO L354 Elim1Store]: treesize reduction 161, result has 21.1 percent of original size [2021-11-07 01:40:07,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 199 treesize of output 224 [2021-11-07 01:40:07,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:07,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:07,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:07,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 28 [2021-11-07 01:40:07,164 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 0 case distinctions, treesize of input 161 treesize of output 138 [2021-11-07 01:40:08,061 INFO L354 Elim1Store]: treesize reduction 2994, result has 8.3 percent of original size [2021-11-07 01:40:08,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 5 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 50 case distinctions, treesize of input 638 treesize of output 581 [2021-11-07 01:40:08,271 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:40:08,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,364 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-07 01:40:08,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 124 treesize of output 83 [2021-11-07 01:40:08,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,434 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-07 01:40:08,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 150 treesize of output 111 [2021-11-07 01:40:08,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,529 INFO L354 Elim1Store]: treesize reduction 24, result has 29.4 percent of original size [2021-11-07 01:40:08,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 144 treesize of output 101 [2021-11-07 01:40:08,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:08,588 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:08,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 129 treesize of output 102 [2021-11-07 01:40:09,035 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-11-07 01:40:09,037 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 108 treesize of output 72 [2021-11-07 01:40:09,098 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:40:09,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:40:09,516 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:09,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 300 treesize of output 300 [2021-11-07 01:40:09,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2021-11-07 01:40:09,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2021-11-07 01:40:09,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 292 treesize of output 256 [2021-11-07 01:40:09,649 INFO L354 Elim1Store]: treesize reduction 164, result has 3.0 percent of original size [2021-11-07 01:40:09,650 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 46990 treesize of output 38565 [2021-11-07 01:40:11,113 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:40:11,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839209115] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:40:11,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1802509850] [2021-11-07 01:40:11,121 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2021-11-07 01:40:11,122 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:40:11,122 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:40:11,122 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:40:11,122 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:40:11,132 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,133 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:11,134 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,134 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:40:11,135 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:11,135 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,135 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:40:11,137 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 01:40:11,140 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_13|], 21=[|v_#valid_22|]} [2021-11-07 01:40:11,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:40:11,150 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,151 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:40:11,151 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,152 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:40:11,152 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:11,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:40:11,158 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 01:40:11,175 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:40:11,178 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:40:11,179 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:11,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:40:11,198 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,199 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,200 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 01:40:11,201 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:40:11,204 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 01:40:11,209 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.6 percent of original size [2021-11-07 01:40:11,209 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:11,210 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:40:11,211 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:11,211 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,212 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 01:40:11,214 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-07 01:40:11,216 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_14|], 15=[|v_#valid_23|]} [2021-11-07 01:40:11,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,235 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 01:40:11,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-07 01:40:11,236 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,237 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:40:11,238 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:40:11,239 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:11,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:40:11,246 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,298 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-07 01:40:11,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-07 01:40:11,299 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,302 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:40:11,302 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,303 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:40:11,303 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:11,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:40:11,321 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,326 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,329 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-07 01:40:11,329 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:40:11,332 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:141, output treesize:142 [2021-11-07 01:40:11,346 INFO L180 QuantifierPusher]: treesize reduction 50, result has 89.2 percent of original size [2021-11-07 01:40:11,348 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:11,349 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,350 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:11,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-07 01:40:11,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-07 01:40:11,355 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:11,355 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,356 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:11,357 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,357 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-07 01:40:11,358 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:11,359 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,359 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-07 01:40:11,360 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 264 [2021-11-07 01:40:11,361 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:11,362 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,362 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 245 [2021-11-07 01:40:11,367 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 464 [2021-11-07 01:40:11,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 110 [2021-11-07 01:40:11,408 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,409 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:11,410 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,410 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-11-07 01:40:11,411 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2021-11-07 01:40:11,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:11,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 35 [2021-11-07 01:40:11,458 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,459 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-07 01:40:11,460 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-07 01:40:11,461 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:11,461 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: SIMPLIFY_QUICK does not support simplification with respect to context at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:157) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:239) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.eliminateOne(ElimStorePlain.java:625) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimAllRec(ElimStorePlain.java:520) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimOneRec(ElimStorePlain.java:301) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.eliminateOne(ElimStorePlain.java:607) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimAllRec(ElimStorePlain.java:520) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:242) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:402) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.quantifier(PartialQuantifierElimination.java:228) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:279) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:98) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-07 01:40:11,463 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:40:11,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 7] total 26 [2021-11-07 01:40:11,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727721637] [2021-11-07 01:40:11,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-07 01:40:11,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:40:11,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-07 01:40:11,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=552, Unknown=0, NotChecked=0, Total=650 [2021-11-07 01:40:11,466 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 26 states, 26 states have (on average 1.7692307692307692) internal successors, (46), 26 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:40:26,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:40:26,149 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2021-11-07 01:40:26,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 01:40:26,150 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.7692307692307692) internal successors, (46), 26 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-07 01:40:26,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:40:26,150 INFO L225 Difference]: With dead ends: 28 [2021-11-07 01:40:26,150 INFO L226 Difference]: Without dead ends: 26 [2021-11-07 01:40:26,152 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 17 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=356, Invalid=1204, Unknown=0, NotChecked=0, Total=1560 [2021-11-07 01:40:26,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-07 01:40:26,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 21. [2021-11-07 01:40:26,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:40:26,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2021-11-07 01:40:26,158 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 17 [2021-11-07 01:40:26,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:40:26,159 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-11-07 01:40:26,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.7692307692307692) internal successors, (46), 26 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:40:26,159 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2021-11-07 01:40:26,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-07 01:40:26,160 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:40:26,160 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:40:26,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-07 01:40:26,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:40:26,370 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:40:26,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:40:26,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1391301614, now seen corresponding path program 2 times [2021-11-07 01:40:26,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:40:26,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042462447] [2021-11-07 01:40:26,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:40:26,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:40:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:40:26,686 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:40:26,686 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:40:26,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042462447] [2021-11-07 01:40:26,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042462447] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:40:26,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948253389] [2021-11-07 01:40:26,687 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 01:40:26,687 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:40:26,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:40:26,693 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:40:26,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 01:40:26,869 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-07 01:40:26,870 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:40:26,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-07 01:40:26,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:40:26,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 106 [2021-11-07 01:40:27,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-07 01:40:27,028 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 0 case distinctions, treesize of input 79 treesize of output 60 [2021-11-07 01:40:27,265 INFO L354 Elim1Store]: treesize reduction 821, result has 10.5 percent of original size [2021-11-07 01:40:27,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 5 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 646 treesize of output 436 [2021-11-07 01:40:27,316 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:40:27,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:27,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:27,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:27,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:27,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:27,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:27,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 29 [2021-11-07 01:40:27,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:27,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:27,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:27,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:27,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:27,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:27,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 29 [2021-11-07 01:40:27,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:27,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:27,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:27,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:27,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:27,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:27,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 29 [2021-11-07 01:40:27,426 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-07 01:40:27,426 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 54 treesize of output 32 [2021-11-07 01:40:27,525 INFO L354 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2021-11-07 01:40:27,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 194 [2021-11-07 01:40:27,550 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:40:27,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:27,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 16 [2021-11-07 01:40:27,589 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 0 case distinctions, treesize of input 149 treesize of output 128 [2021-11-07 01:40:28,038 INFO L354 Elim1Store]: treesize reduction 2155, result has 8.6 percent of original size [2021-11-07 01:40:28,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 5 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 40 case distinctions, treesize of input 628 treesize of output 510 [2021-11-07 01:40:28,090 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:40:28,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,144 INFO L354 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-11-07 01:40:28,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 48 [2021-11-07 01:40:28,163 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:40:28,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,197 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:28,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 69 [2021-11-07 01:40:28,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,227 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:28,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 82 [2021-11-07 01:40:28,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:28,260 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:28,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 62 [2021-11-07 01:40:28,613 INFO L354 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-11-07 01:40:28,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 66 [2021-11-07 01:40:28,665 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 01:40:28,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:40:28,977 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:28,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 300 treesize of output 300 [2021-11-07 01:40:28,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2021-11-07 01:40:29,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2021-11-07 01:40:29,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 292 treesize of output 256 [2021-11-07 01:40:29,078 INFO L354 Elim1Store]: treesize reduction 164, result has 3.0 percent of original size [2021-11-07 01:40:29,079 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 4200 treesize of output 3441 [2021-11-07 01:40:29,282 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:40:29,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948253389] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:40:29,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [438796369] [2021-11-07 01:40:29,292 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2021-11-07 01:40:29,292 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:40:29,293 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:40:29,293 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:40:29,293 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:40:29,308 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,309 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:29,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,309 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:40:29,310 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:29,310 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:40:29,312 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 01:40:29,314 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_15|], 21=[|v_#valid_24|]} [2021-11-07 01:40:29,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:40:29,323 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,323 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:40:29,324 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,324 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:40:29,324 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:29,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:40:29,336 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 01:40:29,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,352 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:40:29,353 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:40:29,354 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:29,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:40:29,359 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,369 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,370 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 01:40:29,370 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:40:29,371 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 01:40:29,378 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.6 percent of original size [2021-11-07 01:40:29,379 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:29,380 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,380 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 01:40:29,380 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:29,381 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:40:29,383 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-07 01:40:29,386 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_16|], 15=[|v_#valid_25|]} [2021-11-07 01:40:29,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,401 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 01:40:29,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-07 01:40:29,403 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,404 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:40:29,404 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:40:29,405 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:29,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:40:29,413 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,456 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-07 01:40:29,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-07 01:40:29,457 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,459 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:40:29,460 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:40:29,461 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:29,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:40:29,470 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,472 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,474 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-07 01:40:29,474 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:40:29,474 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:141, output treesize:142 [2021-11-07 01:40:29,486 INFO L180 QuantifierPusher]: treesize reduction 50, result has 89.2 percent of original size [2021-11-07 01:40:29,488 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:29,489 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,490 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:29,490 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,492 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 392 [2021-11-07 01:40:29,492 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 392 [2021-11-07 01:40:29,493 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:29,496 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,496 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:29,497 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,497 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-11-07 01:40:29,498 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:29,498 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-11-07 01:40:29,500 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 428 [2021-11-07 01:40:29,500 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:29,501 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,501 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 409 [2021-11-07 01:40:29,504 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-07 01:40:29,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 192 [2021-11-07 01:40:29,533 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,533 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:29,533 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,534 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-11-07 01:40:29,535 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-11-07 01:40:29,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:29,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 49 [2021-11-07 01:40:29,575 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,577 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:40:29,578 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:29,578 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:40:29,579 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:29,579 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: SIMPLIFY_QUICK does not support simplification with respect to context at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:157) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:239) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.eliminateOne(ElimStorePlain.java:625) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimAllRec(ElimStorePlain.java:520) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimOneRec(ElimStorePlain.java:301) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.eliminateOne(ElimStorePlain.java:607) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimAllRec(ElimStorePlain.java:520) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:242) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:402) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.quantifier(PartialQuantifierElimination.java:228) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:279) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:98) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-07 01:40:29,581 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:40:29,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 8] total 25 [2021-11-07 01:40:29,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096427028] [2021-11-07 01:40:29,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-07 01:40:29,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:40:29,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-07 01:40:29,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=509, Unknown=0, NotChecked=0, Total=600 [2021-11-07 01:40:29,586 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 25 states, 25 states have (on average 2.2) internal successors, (55), 25 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:40:30,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:40:30,492 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2021-11-07 01:40:30,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 01:40:30,495 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.2) internal successors, (55), 25 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-07 01:40:30,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:40:30,496 INFO L225 Difference]: With dead ends: 31 [2021-11-07 01:40:30,496 INFO L226 Difference]: Without dead ends: 29 [2021-11-07 01:40:30,497 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=308, Invalid=1174, Unknown=0, NotChecked=0, Total=1482 [2021-11-07 01:40:30,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-07 01:40:30,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 24. [2021-11-07 01:40:30,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:40:30,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2021-11-07 01:40:30,505 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 20 [2021-11-07 01:40:30,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:40:30,506 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-11-07 01:40:30,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.2) internal successors, (55), 25 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:40:30,506 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-11-07 01:40:30,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 01:40:30,507 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:40:30,507 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:40:30,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:40:30,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-07 01:40:30,721 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:40:30,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:40:30,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1837502951, now seen corresponding path program 3 times [2021-11-07 01:40:30,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:40:30,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586973917] [2021-11-07 01:40:30,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:40:30,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:40:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:40:30,931 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:40:30,932 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:40:30,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586973917] [2021-11-07 01:40:30,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586973917] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:40:30,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515257718] [2021-11-07 01:40:30,932 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 01:40:30,932 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:40:30,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:40:30,933 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:40:30,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 01:40:31,128 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 01:40:31,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:40:31,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-07 01:40:31,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:40:31,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 106 [2021-11-07 01:40:31,258 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:40:31,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-07 01:40:31,269 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 0 case distinctions, treesize of input 79 treesize of output 60 [2021-11-07 01:40:31,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:31,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:31,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:31,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:31,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:31,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:31,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:31,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:31,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:31,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-07 01:40:31,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 63 [2021-11-07 01:40:31,567 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:40:31,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:40:31,696 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:31,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 172 treesize of output 172 [2021-11-07 01:40:31,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2021-11-07 01:40:31,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2021-11-07 01:40:31,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 144 [2021-11-07 01:40:31,799 INFO L354 Elim1Store]: treesize reduction 159, result has 5.9 percent of original size [2021-11-07 01:40:31,800 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 11759 treesize of output 9651 [2021-11-07 01:40:33,746 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:40:33,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515257718] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:40:33,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [726061412] [2021-11-07 01:40:33,749 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2021-11-07 01:40:33,749 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:40:33,749 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:40:33,750 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:40:33,750 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:40:33,755 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,755 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:33,756 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:40:33,757 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:33,757 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:40:33,759 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 01:40:33,761 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_18|], 21=[|v_#valid_27|]} [2021-11-07 01:40:33,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:40:33,772 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,772 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:40:33,773 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,774 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:40:33,774 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:33,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:40:33,779 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 01:40:33,794 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,796 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:40:33,797 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,797 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:40:33,798 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:33,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:40:33,802 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,804 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,805 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 01:40:33,805 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:40:33,806 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 01:40:33,810 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.6 percent of original size [2021-11-07 01:40:33,811 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:33,811 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,812 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:40:33,813 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:33,813 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,814 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 01:40:33,816 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-07 01:40:33,818 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_19|], 15=[|v_#valid_28|]} [2021-11-07 01:40:33,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,835 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 01:40:33,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-07 01:40:33,836 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:40:33,838 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:40:33,839 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:33,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:40:33,846 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,891 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-07 01:40:33,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-07 01:40:33,892 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,894 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:40:33,895 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,896 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:40:33,896 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:33,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:40:33,907 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,915 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,919 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-07 01:40:33,919 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:40:33,920 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:141, output treesize:142 [2021-11-07 01:40:33,932 INFO L180 QuantifierPusher]: treesize reduction 50, result has 89.2 percent of original size [2021-11-07 01:40:33,934 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:33,935 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,936 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:33,944 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,945 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 392 [2021-11-07 01:40:33,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 392 [2021-11-07 01:40:33,947 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:33,948 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,948 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:33,949 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-11-07 01:40:33,950 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:33,950 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,951 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-11-07 01:40:33,952 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 428 [2021-11-07 01:40:33,952 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:33,953 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 409 [2021-11-07 01:40:33,956 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-07 01:40:33,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 192 [2021-11-07 01:40:33,985 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,986 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:33,986 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:33,987 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-11-07 01:40:33,987 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-11-07 01:40:33,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:33,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:34,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:34,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:34,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:34,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:34,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:34,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:34,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:34,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:34,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:34,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:34,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:34,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:34,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 49 [2021-11-07 01:40:34,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:34,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:40:34,030 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:34,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:40:34,030 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:34,031 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: SIMPLIFY_QUICK does not support simplification with respect to context at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:157) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:239) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.eliminateOne(ElimStorePlain.java:625) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimAllRec(ElimStorePlain.java:520) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimOneRec(ElimStorePlain.java:301) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.eliminateOne(ElimStorePlain.java:607) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimAllRec(ElimStorePlain.java:520) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:242) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:402) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.quantifier(PartialQuantifierElimination.java:228) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:279) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:98) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-07 01:40:34,032 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:40:34,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 25 [2021-11-07 01:40:34,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848354939] [2021-11-07 01:40:34,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-07 01:40:34,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:40:34,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-07 01:40:34,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=509, Unknown=0, NotChecked=0, Total=600 [2021-11-07 01:40:34,037 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 25 states, 25 states have (on average 2.56) internal successors, (64), 25 states have internal predecessors, (64), 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) [2021-11-07 01:40:34,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:40:34,472 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2021-11-07 01:40:34,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 01:40:34,472 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.56) internal successors, (64), 25 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-07 01:40:34,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:40:34,473 INFO L225 Difference]: With dead ends: 33 [2021-11-07 01:40:34,473 INFO L226 Difference]: Without dead ends: 31 [2021-11-07 01:40:34,474 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=253, Invalid=1079, Unknown=0, NotChecked=0, Total=1332 [2021-11-07 01:40:34,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-07 01:40:34,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2021-11-07 01:40:34,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:40:34,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2021-11-07 01:40:34,482 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 23 [2021-11-07 01:40:34,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:40:34,483 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-11-07 01:40:34,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.56) internal successors, (64), 25 states have internal predecessors, (64), 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) [2021-11-07 01:40:34,483 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2021-11-07 01:40:34,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-07 01:40:34,484 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:40:34,484 INFO L513 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:40:34,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:40:34,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-07 01:40:34,706 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:40:34,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:40:34,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1697752398, now seen corresponding path program 4 times [2021-11-07 01:40:34,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:40:34,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356488631] [2021-11-07 01:40:34,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:40:34,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:40:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:40:35,010 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:40:35,010 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:40:35,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356488631] [2021-11-07 01:40:35,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356488631] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:40:35,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470729524] [2021-11-07 01:40:35,010 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 01:40:35,010 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:40:35,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:40:35,012 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:40:35,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 01:40:35,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:40:35,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 01:40:35,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:40:35,745 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:40:35,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:40:36,014 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:40:36,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470729524] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:40:36,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [441300409] [2021-11-07 01:40:36,017 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2021-11-07 01:40:36,017 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:40:36,018 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:40:36,018 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:40:36,018 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:40:36,034 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,035 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:36,035 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,035 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:40:36,036 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:36,036 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,036 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:40:36,037 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 01:40:36,038 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_20|], 21=[|v_#valid_29|]} [2021-11-07 01:40:36,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:40:36,046 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,046 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:40:36,046 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,047 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:40:36,047 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:36,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:40:36,051 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 01:40:36,065 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,067 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:40:36,068 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,068 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:40:36,068 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:36,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:40:36,072 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,073 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,074 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 01:40:36,075 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:40:36,075 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 01:40:36,079 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.6 percent of original size [2021-11-07 01:40:36,080 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:36,081 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,081 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:40:36,082 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:36,083 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 01:40:36,085 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-07 01:40:36,088 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_21|], 15=[|v_#valid_30|]} [2021-11-07 01:40:36,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,103 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 01:40:36,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-07 01:40:36,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,106 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:40:36,106 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,107 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:40:36,107 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:36,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:40:36,113 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,153 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-07 01:40:36,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-07 01:40:36,154 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,157 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:40:36,157 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,158 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:40:36,158 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:36,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:40:36,165 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,167 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,169 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-07 01:40:36,169 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:40:36,170 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:141, output treesize:142 [2021-11-07 01:40:36,181 INFO L180 QuantifierPusher]: treesize reduction 50, result has 89.2 percent of original size [2021-11-07 01:40:36,183 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:36,184 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,185 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:36,185 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,187 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 392 [2021-11-07 01:40:36,187 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 392 [2021-11-07 01:40:36,188 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:36,189 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,190 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:36,190 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,191 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-11-07 01:40:36,192 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:36,192 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,193 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-11-07 01:40:36,194 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 428 [2021-11-07 01:40:36,194 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:36,195 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,195 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 409 [2021-11-07 01:40:36,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-07 01:40:36,216 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:40:36,216 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:40:36,217 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:40:36,218 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:36,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 192 [2021-11-07 01:40:36,237 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,237 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:36,238 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-11-07 01:40:36,239 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-11-07 01:40:36,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:36,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 49 [2021-11-07 01:40:36,280 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,282 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:40:36,282 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:36,283 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:40:36,283 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:36,283 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: SIMPLIFY_QUICK does not support simplification with respect to context at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:157) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:239) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.eliminateOne(ElimStorePlain.java:625) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimAllRec(ElimStorePlain.java:520) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimOneRec(ElimStorePlain.java:301) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.eliminateOne(ElimStorePlain.java:607) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimAllRec(ElimStorePlain.java:520) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:242) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:402) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.quantifier(PartialQuantifierElimination.java:228) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:279) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:98) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-07 01:40:36,285 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:40:36,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 11] total 30 [2021-11-07 01:40:36,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141916826] [2021-11-07 01:40:36,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-07 01:40:36,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:40:36,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-07 01:40:36,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=652, Unknown=0, NotChecked=0, Total=870 [2021-11-07 01:40:36,289 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 30 states, 30 states have (on average 2.4) internal successors, (72), 30 states have internal predecessors, (72), 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) [2021-11-07 01:40:36,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:40:36,575 INFO L93 Difference]: Finished difference Result 71 states and 85 transitions. [2021-11-07 01:40:36,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 01:40:36,576 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.4) internal successors, (72), 30 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-07 01:40:36,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:40:36,576 INFO L225 Difference]: With dead ends: 71 [2021-11-07 01:40:36,576 INFO L226 Difference]: Without dead ends: 31 [2021-11-07 01:40:36,577 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=289, Invalid=833, Unknown=0, NotChecked=0, Total=1122 [2021-11-07 01:40:36,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-07 01:40:36,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-11-07 01:40:36,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 30 states have internal predecessors, (35), 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) [2021-11-07 01:40:36,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2021-11-07 01:40:36,591 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 26 [2021-11-07 01:40:36,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:40:36,592 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2021-11-07 01:40:36,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.4) internal successors, (72), 30 states have internal predecessors, (72), 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) [2021-11-07 01:40:36,592 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2021-11-07 01:40:36,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 01:40:36,593 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:40:36,594 INFO L513 BasicCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:40:36,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:40:36,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-11-07 01:40:36,810 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:40:36,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:40:36,811 INFO L85 PathProgramCache]: Analyzing trace with hash 2064610462, now seen corresponding path program 5 times [2021-11-07 01:40:36,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:40:36,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830359727] [2021-11-07 01:40:36,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:40:36,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:40:36,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:40:38,173 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:40:38,174 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:40:38,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830359727] [2021-11-07 01:40:38,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830359727] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:40:38,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408177207] [2021-11-07 01:40:38,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 01:40:38,175 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:40:38,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:40:38,178 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:40:38,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-07 01:40:38,634 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-07 01:40:38,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:40:38,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-07 01:40:38,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:40:38,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 122 [2021-11-07 01:40:38,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-07 01:40:38,819 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 0 case distinctions, treesize of input 95 treesize of output 76 [2021-11-07 01:40:39,020 INFO L354 Elim1Store]: treesize reduction 917, result has 10.4 percent of original size [2021-11-07 01:40:39,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 5 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 390 treesize of output 310 [2021-11-07 01:40:39,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 29 [2021-11-07 01:40:39,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 48 [2021-11-07 01:40:39,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 43 [2021-11-07 01:40:39,192 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-11-07 01:40:39,192 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 58 treesize of output 34 [2021-11-07 01:40:39,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,348 INFO L354 Elim1Store]: treesize reduction 52, result has 26.8 percent of original size [2021-11-07 01:40:39,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 114 treesize of output 124 [2021-11-07 01:40:39,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-11-07 01:40:39,401 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 0 case distinctions, treesize of input 88 treesize of output 67 [2021-11-07 01:40:39,776 INFO L354 Elim1Store]: treesize reduction 1302, result has 9.1 percent of original size [2021-11-07 01:40:39,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 5 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 40 case distinctions, treesize of input 329 treesize of output 318 [2021-11-07 01:40:39,819 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:40:39,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-11-07 01:40:39,878 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:40:39,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2021-11-07 01:40:39,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:39,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 65 [2021-11-07 01:40:39,948 INFO L354 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2021-11-07 01:40:39,949 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 72 treesize of output 38 [2021-11-07 01:40:40,059 INFO L354 Elim1Store]: treesize reduction 116, result has 24.2 percent of original size [2021-11-07 01:40:40,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 157 treesize of output 161 [2021-11-07 01:40:40,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2021-11-07 01:40:40,098 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 0 case distinctions, treesize of input 119 treesize of output 94 [2021-11-07 01:40:40,499 INFO L354 Elim1Store]: treesize reduction 1420, result has 9.0 percent of original size [2021-11-07 01:40:40,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 5 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 40 case distinctions, treesize of input 808 treesize of output 535 [2021-11-07 01:40:40,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 36 [2021-11-07 01:40:40,596 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:40:40,623 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:40:40,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 50 [2021-11-07 01:40:40,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 38 [2021-11-07 01:40:40,692 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-07 01:40:40,693 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 93 treesize of output 61 [2021-11-07 01:40:40,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,899 INFO L354 Elim1Store]: treesize reduction 192, result has 22.3 percent of original size [2021-11-07 01:40:40,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 138 treesize of output 166 [2021-11-07 01:40:40,930 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 0 case distinctions, treesize of input 133 treesize of output 106 [2021-11-07 01:40:40,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 86 [2021-11-07 01:40:40,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:40,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 40 [2021-11-07 01:40:41,181 INFO L354 Elim1Store]: treesize reduction 280, result has 20.7 percent of original size [2021-11-07 01:40:41,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 181 treesize of output 203 [2021-11-07 01:40:41,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 43 [2021-11-07 01:40:41,233 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 0 case distinctions, treesize of input 143 treesize of output 112 [2021-11-07 01:40:41,822 INFO L354 Elim1Store]: treesize reduction 1935, result has 8.3 percent of original size [2021-11-07 01:40:41,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 5 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 50 case distinctions, treesize of input 426 treesize of output 392 [2021-11-07 01:40:41,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 43 [2021-11-07 01:40:41,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 53 [2021-11-07 01:40:41,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 60 [2021-11-07 01:40:41,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:41,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:42,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:42,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:42,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:42,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:42,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:42,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 42 [2021-11-07 01:40:42,237 INFO L354 Elim1Store]: treesize reduction 380, result has 19.3 percent of original size [2021-11-07 01:40:42,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 162 treesize of output 208 [2021-11-07 01:40:42,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:42,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:42,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:42,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:42,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:42,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:42,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:42,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:42,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:42,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:42,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:42,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:42,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:42,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:42,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:42,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 49 [2021-11-07 01:40:42,282 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 0 case distinctions, treesize of input 136 treesize of output 103 [2021-11-07 01:40:43,171 INFO L354 Elim1Store]: treesize reduction 2300, result has 8.0 percent of original size [2021-11-07 01:40:43,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 5 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 61 case distinctions, treesize of input 365 treesize of output 400 [2021-11-07 01:40:43,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 50 [2021-11-07 01:40:43,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 60 [2021-11-07 01:40:43,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 45 [2021-11-07 01:40:43,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 53 [2021-11-07 01:40:43,574 INFO L354 Elim1Store]: treesize reduction 558, result has 17.1 percent of original size [2021-11-07 01:40:43,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 27 case distinctions, treesize of input 238 treesize of output 302 [2021-11-07 01:40:43,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:43,682 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:43,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 20 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 127 treesize of output 79 [2021-11-07 01:40:43,706 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 0 case distinctions, treesize of input 206 treesize of output 171 [2021-11-07 01:40:45,890 INFO L354 Elim1Store]: treesize reduction 5543, result has 7.1 percent of original size [2021-11-07 01:40:45,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 5 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 15 new quantified variables, introduced 100 case distinctions, treesize of input 671 treesize of output 742 [2021-11-07 01:40:45,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,980 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:40:45,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,994 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:40:45,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:45,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 21 disjoint index pairs (out of 36 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 72 [2021-11-07 01:40:46,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,080 INFO L354 Elim1Store]: treesize reduction 36, result has 21.7 percent of original size [2021-11-07 01:40:46,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 42 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 95 [2021-11-07 01:40:46,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,191 INFO L354 Elim1Store]: treesize reduction 70, result has 23.1 percent of original size [2021-11-07 01:40:46,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 39 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 6 case distinctions, treesize of input 160 treesize of output 114 [2021-11-07 01:40:46,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,854 INFO L354 Elim1Store]: treesize reduction 50, result has 45.1 percent of original size [2021-11-07 01:40:46,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 39 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 6 case distinctions, treesize of input 207 treesize of output 159 [2021-11-07 01:40:46,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:46,988 INFO L354 Elim1Store]: treesize reduction 448, result has 4.5 percent of original size [2021-11-07 01:40:46,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 15 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 30 case distinctions, treesize of input 171 treesize of output 120 [2021-11-07 01:40:47,867 INFO L354 Elim1Store]: treesize reduction 180, result has 0.6 percent of original size [2021-11-07 01:40:47,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 135 treesize of output 75 [2021-11-07 01:40:47,935 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:40:47,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:40:48,957 WARN L838 $PredicateComparison]: unable to prove that (and (or (< c_ULTIMATE.start_main_~CCCELVOL1~0 c_ULTIMATE.start_main_~MINVAL~0) (forall ((ULTIMATE.start_main_~i~0 Int)) (let ((.cse0 (select (let ((.cse3 (* ULTIMATE.start_main_~i~0 16))) (let ((.cse1 (let ((.cse4 (let ((.cse6 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#volArray~0.base|) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 4) .cse3) c_ULTIMATE.start_main_~CCCELVOL1~0)) (.cse7 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 16) .cse3))) (store .cse6 .cse7 (select .cse6 .cse7)))) (.cse5 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 12) .cse3))) (store .cse4 .cse5 (select .cse4 .cse5)))) (.cse2 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 8) .cse3))) (store .cse1 .cse2 (select .cse1 .cse2)))) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 16)))) (or (= .cse0 0) (<= c_ULTIMATE.start_main_~MINVAL~0 .cse0))))) (or (forall ((ULTIMATE.start_main_~i~0 Int)) (let ((.cse8 (select (let ((.cse11 (* ULTIMATE.start_main_~i~0 16))) (let ((.cse9 (let ((.cse12 (let ((.cse14 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#volArray~0.base|) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 4) .cse11) 0)) (.cse15 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 16) .cse11))) (store .cse14 .cse15 (select .cse14 .cse15)))) (.cse13 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 12) .cse11))) (store .cse12 .cse13 (select .cse12 .cse13)))) (.cse10 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 8) .cse11))) (store .cse9 .cse10 (select .cse9 .cse10)))) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 16)))) (or (<= c_ULTIMATE.start_main_~MINVAL~0 .cse8) (= .cse8 0)))) (<= c_ULTIMATE.start_main_~MINVAL~0 c_ULTIMATE.start_main_~CCCELVOL1~0))) is different from false [2021-11-07 01:40:49,746 WARN L838 $PredicateComparison]: unable to prove that (and (or (< c_ULTIMATE.start_main_~CCCELVOL1~0 c_ULTIMATE.start_main_~MINVAL~0) (forall ((v_subst_2 Int)) (let ((.cse0 (select (let ((.cse3 (* v_subst_2 16))) (let ((.cse1 (let ((.cse4 (let ((.cse6 (store (let ((.cse10 (* c_ULTIMATE.start_main_~i~0 16))) (let ((.cse8 (let ((.cse11 (let ((.cse13 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#volArray~0.base|) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 4) .cse10) c_ULTIMATE.start_main_~CCCELVOL1~0)) (.cse14 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 16) .cse10))) (store .cse13 .cse14 (select .cse13 .cse14)))) (.cse12 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 12) .cse10))) (store .cse11 .cse12 (select .cse11 .cse12)))) (.cse9 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 8) .cse10))) (store .cse8 .cse9 (select .cse8 .cse9)))) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 4) .cse3) c_ULTIMATE.start_main_~CCCELVOL1~0)) (.cse7 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 16) .cse3))) (store .cse6 .cse7 (select .cse6 .cse7)))) (.cse5 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 12) .cse3))) (store .cse4 .cse5 (select .cse4 .cse5)))) (.cse2 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 8) .cse3))) (store .cse1 .cse2 (select .cse1 .cse2)))) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 16)))) (or (= .cse0 0) (<= c_ULTIMATE.start_main_~MINVAL~0 .cse0))))) (or (<= c_ULTIMATE.start_main_~MINVAL~0 c_ULTIMATE.start_main_~CCCELVOL1~0) (forall ((v_subst_1 Int)) (let ((.cse15 (select (let ((.cse18 (* v_subst_1 16))) (let ((.cse16 (let ((.cse19 (let ((.cse21 (store (let ((.cse25 (* c_ULTIMATE.start_main_~i~0 16))) (let ((.cse23 (let ((.cse26 (let ((.cse28 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#volArray~0.base|) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 4) .cse25) 0)) (.cse29 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 16) .cse25))) (store .cse28 .cse29 (select .cse28 .cse29)))) (.cse27 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 12) .cse25))) (store .cse26 .cse27 (select .cse26 .cse27)))) (.cse24 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 8) .cse25))) (store .cse23 .cse24 (select .cse23 .cse24)))) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 4) .cse18) 0)) (.cse22 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 16) .cse18))) (store .cse21 .cse22 (select .cse21 .cse22)))) (.cse20 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 12) .cse18))) (store .cse19 .cse20 (select .cse19 .cse20)))) (.cse17 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 8) .cse18))) (store .cse16 .cse17 (select .cse16 .cse17)))) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 16)))) (or (= .cse15 0) (<= c_ULTIMATE.start_main_~MINVAL~0 .cse15)))))) is different from false [2021-11-07 01:40:50,186 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 300 treesize of output 300 [2021-11-07 01:40:50,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2021-11-07 01:40:50,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2021-11-07 01:40:50,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 292 treesize of output 256 [2021-11-07 01:40:50,274 INFO L354 Elim1Store]: treesize reduction 164, result has 3.0 percent of original size [2021-11-07 01:40:50,274 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 4578 treesize of output 3741 [2021-11-07 01:40:50,621 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 6 trivial. 3 not checked. [2021-11-07 01:40:50,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408177207] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:40:50,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1845801032] [2021-11-07 01:40:50,624 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2021-11-07 01:40:50,624 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:40:50,624 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:40:50,624 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:40:50,624 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:40:50,636 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,636 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:50,637 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,637 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:40:50,638 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:50,638 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,639 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:40:50,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 01:40:50,642 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_22|], 21=[|v_#valid_31|]} [2021-11-07 01:40:50,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:40:50,651 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,652 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:40:50,652 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,653 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:40:50,653 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:50,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:40:50,657 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 01:40:50,671 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,673 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:40:50,674 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,674 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:40:50,674 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:50,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:40:50,678 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,684 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 01:40:50,686 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:40:50,686 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 01:40:50,690 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.6 percent of original size [2021-11-07 01:40:50,691 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:50,691 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,692 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 01:40:50,692 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:50,693 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,693 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:40:50,695 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-07 01:40:50,698 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_23|], 15=[|v_#valid_32|]} [2021-11-07 01:40:50,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,714 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 01:40:50,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-07 01:40:50,715 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,716 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:40:50,717 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,717 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:40:50,717 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:50,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:40:50,724 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,764 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-07 01:40:50,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-07 01:40:50,765 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:40:50,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:40:50,769 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:50,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:40:50,775 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,777 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,779 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-07 01:40:50,780 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:40:50,780 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:141, output treesize:142 [2021-11-07 01:40:50,791 INFO L180 QuantifierPusher]: treesize reduction 50, result has 89.2 percent of original size [2021-11-07 01:40:50,793 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:50,793 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,794 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:50,795 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,796 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-07 01:40:50,797 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-07 01:40:50,797 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:50,798 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,799 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:50,800 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,800 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-07 01:40:50,801 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:50,801 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,801 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-07 01:40:50,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 264 [2021-11-07 01:40:50,803 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:50,803 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,804 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 245 [2021-11-07 01:40:50,807 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 464 [2021-11-07 01:40:50,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 110 [2021-11-07 01:40:50,836 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,837 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:40:50,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-11-07 01:40:50,839 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2021-11-07 01:40:50,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:40:50,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 35 [2021-11-07 01:40:50,876 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,878 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-07 01:40:50,878 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:50,878 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-07 01:40:50,879 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:40:50,879 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: SIMPLIFY_QUICK does not support simplification with respect to context at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:157) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:239) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.eliminateOne(ElimStorePlain.java:625) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimAllRec(ElimStorePlain.java:520) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimOneRec(ElimStorePlain.java:301) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.eliminateOne(ElimStorePlain.java:607) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimAllRec(ElimStorePlain.java:520) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:242) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:402) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.quantifier(PartialQuantifierElimination.java:228) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:279) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:98) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-07 01:40:50,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:40:50,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 13] total 50 [2021-11-07 01:40:50,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993367619] [2021-11-07 01:40:50,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-11-07 01:40:50,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:40:50,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-11-07 01:40:50,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=2049, Unknown=2, NotChecked=186, Total=2450 [2021-11-07 01:40:50,886 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 50 states, 50 states have (on average 1.66) internal successors, (83), 50 states have internal predecessors, (83), 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) [2021-11-07 01:41:11,436 WARN L207 SmtUtils]: Spent 18.27 s on a formula simplification. DAG size of input: 129 DAG size of output: 48 [2021-11-07 01:41:12,573 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse12 (div c_~CELLCOUNT~0 4)) (.cse3 (* c_ULTIMATE.start_main_~i~0 16)) (.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~#volArray~0.base|))) (let ((.cse2 (<= 3 c_ULTIMATE.start_main_~CCCELVOL2~0)) (.cse4 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 16)) (.cse11 (* c_ULTIMATE.start_main_~i~0 4)) (.cse9 (select .cse0 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 24))) (.cse10 (select .cse0 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 20))) (.cse8 (select .cse0 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 4))) (.cse6 (= |c_ULTIMATE.start_main_~#volArray~0.offset| 0)) (.cse1 (= c_ULTIMATE.start_main_~MINVAL~0 2)) (.cse5 (= c_ULTIMATE.start_main_~CCCELVOL1~0 1)) (.cse14 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 16) .cse3)) (.cse16 (= 32 (* 16 c_ULTIMATE.start_main_~i~0))) (.cse13 (<= (+ .cse12 1) c_ULTIMATE.start_main_~i~0)) (.cse7 (< .cse12 2)) (.cse15 (< c_ULTIMATE.start_main_~CCCELVOL1~0 c_ULTIMATE.start_main_~MINVAL~0))) (and (= (select .cse0 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 12)) 0) .cse1 (or (and .cse1 .cse2 (<= 5 (select (store .cse0 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 12) .cse3) c_ULTIMATE.start_main_~CCCELVOL3~0) .cse4)) .cse5 .cse6 (< c_ULTIMATE.start_main_~MINVAL~0 (+ c_ULTIMATE.start_main_~CCCELVOL3~0 1))) .cse7) (<= 7 .cse8) (= (select .cse0 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 8)) .cse9) (<= 2 c_ULTIMATE.start_main_~i~0) .cse2 (<= 7 c_ULTIMATE.start_main_~CCCELVOL3~0) (<= 7 .cse10) (<= 5 (select .cse0 .cse4)) (<= 5 (select .cse0 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 12 .cse11))) (<= 5 (select .cse0 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 8 .cse11))) (or (<= (+ .cse12 2) c_ULTIMATE.start_main_~i~0) (and (or (= c_~CELLCOUNT~0 (* 4 .cse12)) (<= 0 c_~CELLCOUNT~0)) .cse13) (and .cse1 (<= 5 (select (store .cse0 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 4) .cse3) 0) .cse14)) .cse15 .cse6 .cse16)) (<= c_ULTIMATE.start_main_~CCCELVOL1~0 1) (<= 3 .cse9) .cse5 (<= .cse12 2) .cse6 (<= 5 c_ULTIMATE.start_main_~CCCELVOL4~0) (= .cse10 .cse8) (= c_ULTIMATE.start_main_~i~0 2) (<= c_ULTIMATE.start_main_~i~0 2) (or (and .cse6 (or (and .cse1 .cse5 (< c_ULTIMATE.start_main_~MINVAL~0 (+ c_ULTIMATE.start_main_~CCCELVOL2~0 1)) (<= 5 (select (store .cse0 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 8) .cse3) c_ULTIMATE.start_main_~CCCELVOL2~0) .cse14)) .cse16) .cse13)) .cse7) (or .cse15 (forall ((ULTIMATE.start_main_~i~0 Int)) (let ((.cse17 (select (let ((.cse20 (* ULTIMATE.start_main_~i~0 16))) (let ((.cse18 (let ((.cse21 (let ((.cse23 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#volArray~0.base|) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 4) .cse20) c_ULTIMATE.start_main_~CCCELVOL1~0)) (.cse24 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 16) .cse20))) (store .cse23 .cse24 (select .cse23 .cse24)))) (.cse22 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 12) .cse20))) (store .cse21 .cse22 (select .cse21 .cse22)))) (.cse19 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 8) .cse20))) (store .cse18 .cse19 (select .cse18 .cse19)))) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 16)))) (or (= .cse17 0) (<= c_ULTIMATE.start_main_~MINVAL~0 .cse17))))) (or (forall ((ULTIMATE.start_main_~i~0 Int)) (let ((.cse25 (select (let ((.cse28 (* ULTIMATE.start_main_~i~0 16))) (let ((.cse26 (let ((.cse29 (let ((.cse31 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#volArray~0.base|) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 4) .cse28) 0)) (.cse32 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 16) .cse28))) (store .cse31 .cse32 (select .cse31 .cse32)))) (.cse30 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 12) .cse28))) (store .cse29 .cse30 (select .cse29 .cse30)))) (.cse27 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 8) .cse28))) (store .cse26 .cse27 (select .cse26 .cse27)))) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 16)))) (or (<= c_ULTIMATE.start_main_~MINVAL~0 .cse25) (= .cse25 0)))) (<= c_ULTIMATE.start_main_~MINVAL~0 c_ULTIMATE.start_main_~CCCELVOL1~0))))) is different from false [2021-11-07 01:41:13,361 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse9 (div c_~CELLCOUNT~0 4)) (.cse3 (* c_ULTIMATE.start_main_~i~0 16))) (let ((.cse1 (<= 3 c_ULTIMATE.start_main_~CCCELVOL2~0)) (.cse4 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 16)) (.cse8 (* c_ULTIMATE.start_main_~i~0 4)) (.cse6 (= |c_ULTIMATE.start_main_~#volArray~0.offset| 0)) (.cse0 (= c_ULTIMATE.start_main_~MINVAL~0 2)) (.cse5 (= c_ULTIMATE.start_main_~CCCELVOL1~0 1)) (.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~#volArray~0.base|)) (.cse11 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 16) .cse3)) (.cse13 (= 32 (* 16 c_ULTIMATE.start_main_~i~0))) (.cse10 (<= (+ .cse9 1) c_ULTIMATE.start_main_~i~0)) (.cse7 (< .cse9 2)) (.cse12 (< c_ULTIMATE.start_main_~CCCELVOL1~0 c_ULTIMATE.start_main_~MINVAL~0))) (and .cse0 (or (and .cse0 .cse1 (<= 5 (select (store .cse2 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 12) .cse3) c_ULTIMATE.start_main_~CCCELVOL3~0) .cse4)) .cse5 .cse6 (< c_ULTIMATE.start_main_~MINVAL~0 (+ c_ULTIMATE.start_main_~CCCELVOL3~0 1))) .cse7) (<= 2 c_ULTIMATE.start_main_~i~0) .cse1 (<= 7 c_ULTIMATE.start_main_~CCCELVOL3~0) (<= 5 (select .cse2 .cse4)) (<= 5 (select .cse2 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 8 .cse8))) (or (<= (+ .cse9 2) c_ULTIMATE.start_main_~i~0) (and (or (= c_~CELLCOUNT~0 (* 4 .cse9)) (<= 0 c_~CELLCOUNT~0)) .cse10) (and .cse0 (<= 5 (select (store .cse2 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 4) .cse3) 0) .cse11)) .cse12 .cse6 .cse13)) (<= c_ULTIMATE.start_main_~CCCELVOL1~0 1) .cse5 (<= .cse9 2) .cse6 (let ((.cse14 (select .cse2 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 4 .cse8)))) (or (<= c_ULTIMATE.start_main_~MINVAL~0 .cse14) (= 0 .cse14))) (<= 5 c_ULTIMATE.start_main_~CCCELVOL4~0) (<= c_ULTIMATE.start_main_~i~0 2) (or (and .cse6 (or (and .cse0 .cse5 (< c_ULTIMATE.start_main_~MINVAL~0 (+ c_ULTIMATE.start_main_~CCCELVOL2~0 1)) (<= 5 (select (store .cse2 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 8) .cse3) c_ULTIMATE.start_main_~CCCELVOL2~0) .cse11)) .cse13) .cse10)) .cse7) (or .cse12 (forall ((ULTIMATE.start_main_~i~0 Int)) (let ((.cse15 (select (let ((.cse18 (* ULTIMATE.start_main_~i~0 16))) (let ((.cse16 (let ((.cse19 (let ((.cse21 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#volArray~0.base|) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 4) .cse18) c_ULTIMATE.start_main_~CCCELVOL1~0)) (.cse22 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 16) .cse18))) (store .cse21 .cse22 (select .cse21 .cse22)))) (.cse20 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 12) .cse18))) (store .cse19 .cse20 (select .cse19 .cse20)))) (.cse17 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 8) .cse18))) (store .cse16 .cse17 (select .cse16 .cse17)))) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 16)))) (or (= .cse15 0) (<= c_ULTIMATE.start_main_~MINVAL~0 .cse15))))) (or (forall ((ULTIMATE.start_main_~i~0 Int)) (let ((.cse23 (select (let ((.cse26 (* ULTIMATE.start_main_~i~0 16))) (let ((.cse24 (let ((.cse27 (let ((.cse29 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#volArray~0.base|) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 4) .cse26) 0)) (.cse30 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 16) .cse26))) (store .cse29 .cse30 (select .cse29 .cse30)))) (.cse28 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 12) .cse26))) (store .cse27 .cse28 (select .cse27 .cse28)))) (.cse25 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 8) .cse26))) (store .cse24 .cse25 (select .cse24 .cse25)))) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 16)))) (or (<= c_ULTIMATE.start_main_~MINVAL~0 .cse23) (= .cse23 0)))) (<= c_ULTIMATE.start_main_~MINVAL~0 c_ULTIMATE.start_main_~CCCELVOL1~0))))) is different from false [2021-11-07 01:41:14,046 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse10 (div c_~CELLCOUNT~0 4)) (.cse3 (* c_ULTIMATE.start_main_~i~0 16)) (.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~#volArray~0.base|))) (let ((.cse1 (<= 3 c_ULTIMATE.start_main_~CCCELVOL2~0)) (.cse4 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 16)) (.cse9 (* c_ULTIMATE.start_main_~i~0 4)) (.cse8 (select .cse2 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 4))) (.cse6 (= |c_ULTIMATE.start_main_~#volArray~0.offset| 0)) (.cse0 (= c_ULTIMATE.start_main_~MINVAL~0 2)) (.cse5 (= c_ULTIMATE.start_main_~CCCELVOL1~0 1)) (.cse12 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 16) .cse3)) (.cse14 (= 32 (* 16 c_ULTIMATE.start_main_~i~0))) (.cse11 (<= (+ .cse10 1) c_ULTIMATE.start_main_~i~0)) (.cse7 (< .cse10 2)) (.cse13 (< c_ULTIMATE.start_main_~CCCELVOL1~0 c_ULTIMATE.start_main_~MINVAL~0))) (and .cse0 (or (and .cse0 .cse1 (<= 5 (select (store .cse2 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 12) .cse3) c_ULTIMATE.start_main_~CCCELVOL3~0) .cse4)) .cse5 .cse6 (< c_ULTIMATE.start_main_~MINVAL~0 (+ c_ULTIMATE.start_main_~CCCELVOL3~0 1))) .cse7) (<= 7 .cse8) (<= 2 c_ULTIMATE.start_main_~i~0) .cse1 (<= 7 c_ULTIMATE.start_main_~CCCELVOL3~0) (<= 5 (select .cse2 .cse4)) (<= 5 (select .cse2 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 12 .cse9))) (<= 5 (select .cse2 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 8 .cse9))) (or (<= (+ .cse10 2) c_ULTIMATE.start_main_~i~0) (and (or (= c_~CELLCOUNT~0 (* 4 .cse10)) (<= 0 c_~CELLCOUNT~0)) .cse11) (and .cse0 (<= 5 (select (store .cse2 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 4) .cse3) 0) .cse12)) .cse13 .cse6 .cse14)) (<= c_ULTIMATE.start_main_~CCCELVOL1~0 1) .cse5 (<= .cse10 2) .cse6 (let ((.cse15 (select .cse2 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 4 .cse9)))) (or (<= c_ULTIMATE.start_main_~MINVAL~0 .cse15) (= 0 .cse15))) (<= 5 c_ULTIMATE.start_main_~CCCELVOL4~0) (= (select .cse2 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 20)) .cse8) (<= c_ULTIMATE.start_main_~i~0 2) (or (and .cse6 (or (and .cse0 .cse5 (< c_ULTIMATE.start_main_~MINVAL~0 (+ c_ULTIMATE.start_main_~CCCELVOL2~0 1)) (<= 5 (select (store .cse2 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 8) .cse3) c_ULTIMATE.start_main_~CCCELVOL2~0) .cse12)) .cse14) .cse11)) .cse7) (or .cse13 (forall ((ULTIMATE.start_main_~i~0 Int)) (let ((.cse16 (select (let ((.cse19 (* ULTIMATE.start_main_~i~0 16))) (let ((.cse17 (let ((.cse20 (let ((.cse22 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#volArray~0.base|) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 4) .cse19) c_ULTIMATE.start_main_~CCCELVOL1~0)) (.cse23 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 16) .cse19))) (store .cse22 .cse23 (select .cse22 .cse23)))) (.cse21 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 12) .cse19))) (store .cse20 .cse21 (select .cse20 .cse21)))) (.cse18 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 8) .cse19))) (store .cse17 .cse18 (select .cse17 .cse18)))) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 16)))) (or (= .cse16 0) (<= c_ULTIMATE.start_main_~MINVAL~0 .cse16))))) (or (forall ((ULTIMATE.start_main_~i~0 Int)) (let ((.cse24 (select (let ((.cse27 (* ULTIMATE.start_main_~i~0 16))) (let ((.cse25 (let ((.cse28 (let ((.cse30 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#volArray~0.base|) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 4) .cse27) 0)) (.cse31 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 16) .cse27))) (store .cse30 .cse31 (select .cse30 .cse31)))) (.cse29 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 12) .cse27))) (store .cse28 .cse29 (select .cse28 .cse29)))) (.cse26 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 8) .cse27))) (store .cse25 .cse26 (select .cse25 .cse26)))) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 16)))) (or (<= c_ULTIMATE.start_main_~MINVAL~0 .cse24) (= .cse24 0)))) (<= c_ULTIMATE.start_main_~MINVAL~0 c_ULTIMATE.start_main_~CCCELVOL1~0))))) is different from false [2021-11-07 01:41:15,103 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= c_ULTIMATE.start_main_~MINVAL~0 2)) (.cse6 (= |c_ULTIMATE.start_main_~#volArray~0.offset| 0)) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~#volArray~0.base|)) (.cse2 (* c_ULTIMATE.start_main_~i~0 4)) (.cse5 (< c_ULTIMATE.start_main_~CCCELVOL1~0 c_ULTIMATE.start_main_~MINVAL~0))) (and .cse0 (<= 2 c_ULTIMATE.start_main_~i~0) (<= 3 c_ULTIMATE.start_main_~CCCELVOL2~0) (<= 7 c_ULTIMATE.start_main_~CCCELVOL3~0) (<= 5 (select .cse1 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 16))) (<= 5 (select .cse1 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 8 .cse2))) (let ((.cse3 (div c_~CELLCOUNT~0 4))) (or (<= (+ .cse3 2) c_ULTIMATE.start_main_~i~0) (and (or (= c_~CELLCOUNT~0 (* 4 .cse3)) (<= 0 c_~CELLCOUNT~0)) (<= (+ .cse3 1) c_ULTIMATE.start_main_~i~0)) (and .cse0 (<= 5 (let ((.cse4 (* c_ULTIMATE.start_main_~i~0 16))) (select (store .cse1 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 4) .cse4) 0) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 16) .cse4)))) .cse5 .cse6 (= 32 (* 16 c_ULTIMATE.start_main_~i~0))))) (<= c_ULTIMATE.start_main_~CCCELVOL1~0 1) (= c_ULTIMATE.start_main_~CCCELVOL1~0 1) .cse6 (let ((.cse7 (select .cse1 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 4 .cse2)))) (or (<= c_ULTIMATE.start_main_~MINVAL~0 .cse7) (= 0 .cse7))) (<= 5 c_ULTIMATE.start_main_~CCCELVOL4~0) (<= c_ULTIMATE.start_main_~i~0 2) (or .cse5 (forall ((ULTIMATE.start_main_~i~0 Int)) (let ((.cse8 (select (let ((.cse11 (* ULTIMATE.start_main_~i~0 16))) (let ((.cse9 (let ((.cse12 (let ((.cse14 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#volArray~0.base|) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 4) .cse11) c_ULTIMATE.start_main_~CCCELVOL1~0)) (.cse15 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 16) .cse11))) (store .cse14 .cse15 (select .cse14 .cse15)))) (.cse13 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 12) .cse11))) (store .cse12 .cse13 (select .cse12 .cse13)))) (.cse10 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 8) .cse11))) (store .cse9 .cse10 (select .cse9 .cse10)))) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 16)))) (or (= .cse8 0) (<= c_ULTIMATE.start_main_~MINVAL~0 .cse8))))) (or (forall ((ULTIMATE.start_main_~i~0 Int)) (let ((.cse16 (select (let ((.cse19 (* ULTIMATE.start_main_~i~0 16))) (let ((.cse17 (let ((.cse20 (let ((.cse22 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#volArray~0.base|) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 4) .cse19) 0)) (.cse23 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 16) .cse19))) (store .cse22 .cse23 (select .cse22 .cse23)))) (.cse21 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 12) .cse19))) (store .cse20 .cse21 (select .cse20 .cse21)))) (.cse18 (+ |c_ULTIMATE.start_main_~#volArray~0.offset| (- 8) .cse19))) (store .cse17 .cse18 (select .cse17 .cse18)))) (+ |c_ULTIMATE.start_main_~#volArray~0.offset| 16)))) (or (<= c_ULTIMATE.start_main_~MINVAL~0 .cse16) (= .cse16 0)))) (<= c_ULTIMATE.start_main_~MINVAL~0 c_ULTIMATE.start_main_~CCCELVOL1~0)))) is different from false [2021-11-07 01:41:16,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:41:16,149 INFO L93 Difference]: Finished difference Result 93 states and 116 transitions. [2021-11-07 01:41:16,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-11-07 01:41:16,149 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 1.66) internal successors, (83), 50 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-07 01:41:16,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:41:16,152 INFO L225 Difference]: With dead ends: 93 [2021-11-07 01:41:16,152 INFO L226 Difference]: Without dead ends: 91 [2021-11-07 01:41:16,155 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 25 SyntacticMatches, 9 SemanticMatches, 99 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 2812 ImplicationChecksByTransitivity, 27.1s TimeCoverageRelationStatistics Valid=1015, Invalid=7933, Unknown=6, NotChecked=1146, Total=10100 [2021-11-07 01:41:16,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-11-07 01:41:16,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 47. [2021-11-07 01:41:16,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.173913043478261) internal successors, (54), 46 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:16,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2021-11-07 01:41:16,176 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 30 [2021-11-07 01:41:16,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:41:16,176 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2021-11-07 01:41:16,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 1.66) internal successors, (83), 50 states have internal predecessors, (83), 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) [2021-11-07 01:41:16,177 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2021-11-07 01:41:16,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 01:41:16,178 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:16,178 INFO L513 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:41:16,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:41:16,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-07 01:41:16,394 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:41:16,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:16,395 INFO L85 PathProgramCache]: Analyzing trace with hash 103244246, now seen corresponding path program 6 times [2021-11-07 01:41:16,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:41:16,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213183849] [2021-11-07 01:41:16,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:16,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:41:16,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:16,546 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-07 01:41:16,546 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:41:16,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213183849] [2021-11-07 01:41:16,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213183849] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:41:16,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283550944] [2021-11-07 01:41:16,547 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 01:41:16,547 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:41:16,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:41:16,548 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:41:16,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 01:41:16,931 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 01:41:16,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:41:16,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:41:16,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:17,103 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-07 01:41:17,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:17,399 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-07 01:41:17,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283550944] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:41:17,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1705180713] [2021-11-07 01:41:17,401 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2021-11-07 01:41:17,401 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:41:17,401 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:41:17,401 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:41:17,402 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:41:17,416 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,416 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:41:17,417 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,417 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:41:17,418 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:41:17,418 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,419 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:41:17,420 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 01:41:17,421 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_24|], 21=[|v_#valid_33|]} [2021-11-07 01:41:17,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:41:17,431 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,431 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:41:17,431 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,432 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:41:17,432 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:41:17,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:41:17,442 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 01:41:17,468 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:41:17,470 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,471 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:41:17,471 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:41:17,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:41:17,478 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,479 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,480 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 01:41:17,481 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:41:17,481 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 01:41:17,485 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.6 percent of original size [2021-11-07 01:41:17,486 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:41:17,487 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,487 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 01:41:17,488 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:41:17,488 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,489 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:41:17,490 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-07 01:41:17,494 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_25|], 15=[|v_#valid_34|]} [2021-11-07 01:41:17,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,508 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 01:41:17,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-07 01:41:17,509 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,510 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:41:17,511 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:41:17,512 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:41:17,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:41:17,518 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,552 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-07 01:41:17,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-07 01:41:17,554 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,555 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:41:17,556 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,557 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:41:17,557 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:41:17,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:41:17,563 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,565 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,567 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-07 01:41:17,567 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:41:17,568 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:141, output treesize:142 [2021-11-07 01:41:17,579 INFO L180 QuantifierPusher]: treesize reduction 50, result has 89.2 percent of original size [2021-11-07 01:41:17,581 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:41:17,582 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,583 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:41:17,583 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,585 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 392 [2021-11-07 01:41:17,585 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 392 [2021-11-07 01:41:17,586 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:41:17,587 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,588 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:41:17,588 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-11-07 01:41:17,589 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:41:17,590 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-11-07 01:41:17,591 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 428 [2021-11-07 01:41:17,592 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:41:17,592 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,593 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 409 [2021-11-07 01:41:17,596 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-07 01:41:17,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 192 [2021-11-07 01:41:17,622 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,623 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:41:17,623 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,623 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-11-07 01:41:17,624 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-11-07 01:41:17,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:17,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 49 [2021-11-07 01:41:17,660 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,662 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:41:17,662 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:17,663 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:41:17,663 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:41:17,663 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: SIMPLIFY_QUICK does not support simplification with respect to context at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:157) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:239) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.eliminateOne(ElimStorePlain.java:625) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimAllRec(ElimStorePlain.java:520) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimOneRec(ElimStorePlain.java:301) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.eliminateOne(ElimStorePlain.java:607) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimAllRec(ElimStorePlain.java:520) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:242) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:402) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.quantifier(PartialQuantifierElimination.java:228) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:279) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:98) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-07 01:41:17,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:41:17,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2021-11-07 01:41:17,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553138860] [2021-11-07 01:41:17,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 01:41:17,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:41:17,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 01:41:17,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:41:17,667 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 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) [2021-11-07 01:41:17,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:41:17,849 INFO L93 Difference]: Finished difference Result 91 states and 106 transitions. [2021-11-07 01:41:17,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:41:17,850 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 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 34 [2021-11-07 01:41:17,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:41:17,854 INFO L225 Difference]: With dead ends: 91 [2021-11-07 01:41:17,854 INFO L226 Difference]: Without dead ends: 65 [2021-11-07 01:41:17,855 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:41:17,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-07 01:41:17,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 55. [2021-11-07 01:41:17,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.1481481481481481) internal successors, (62), 54 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:17,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2021-11-07 01:41:17,884 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 34 [2021-11-07 01:41:17,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:41:17,884 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2021-11-07 01:41:17,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 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) [2021-11-07 01:41:17,886 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2021-11-07 01:41:17,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-07 01:41:17,893 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:17,894 INFO L513 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:41:17,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:41:18,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:41:18,119 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:41:18,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:18,119 INFO L85 PathProgramCache]: Analyzing trace with hash -443931014, now seen corresponding path program 7 times [2021-11-07 01:41:18,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:41:18,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453206752] [2021-11-07 01:41:18,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:18,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:41:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:18,283 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-11-07 01:41:18,284 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:41:18,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453206752] [2021-11-07 01:41:18,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453206752] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:41:18,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013014616] [2021-11-07 01:41:18,284 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 01:41:18,284 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:41:18,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:41:18,286 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:41:18,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-07 01:41:18,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:18,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:41:18,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:18,928 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-11-07 01:41:18,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:19,301 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-11-07 01:41:19,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013014616] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:41:19,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [869006141] [2021-11-07 01:41:19,304 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2021-11-07 01:41:19,304 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:41:19,305 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:41:19,305 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:41:19,305 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:41:19,313 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,314 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:41:19,315 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,315 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:41:19,315 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:41:19,316 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,316 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:41:19,318 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 01:41:19,323 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_26|], 21=[|v_#valid_35|]} [2021-11-07 01:41:19,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:41:19,332 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,333 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:41:19,333 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,334 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:41:19,334 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:41:19,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:41:19,339 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 01:41:19,355 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,357 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:41:19,358 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,358 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:41:19,358 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:41:19,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:41:19,362 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,363 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,364 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 01:41:19,365 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:41:19,365 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 01:41:19,369 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.6 percent of original size [2021-11-07 01:41:19,370 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:41:19,371 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,371 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:41:19,372 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:41:19,372 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,373 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 01:41:19,375 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-07 01:41:19,377 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_27|], 15=[|v_#valid_36|]} [2021-11-07 01:41:19,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,395 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 01:41:19,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-07 01:41:19,396 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,397 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:41:19,398 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:41:19,398 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:41:19,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:41:19,404 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,446 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-07 01:41:19,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-07 01:41:19,447 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:41:19,450 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,451 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:41:19,451 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:41:19,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:41:19,458 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,460 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,461 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-07 01:41:19,462 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:41:19,462 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:141, output treesize:142 [2021-11-07 01:41:19,473 INFO L180 QuantifierPusher]: treesize reduction 50, result has 89.2 percent of original size [2021-11-07 01:41:19,475 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:41:19,476 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,477 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:41:19,477 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,478 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 392 [2021-11-07 01:41:19,479 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 392 [2021-11-07 01:41:19,480 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:41:19,481 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,481 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:41:19,482 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,482 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-11-07 01:41:19,483 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:41:19,483 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,484 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-11-07 01:41:19,485 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 428 [2021-11-07 01:41:19,485 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:41:19,485 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,486 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 409 [2021-11-07 01:41:19,489 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-07 01:41:19,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 192 [2021-11-07 01:41:19,516 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,516 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:41:19,517 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,517 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-11-07 01:41:19,518 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-11-07 01:41:19,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:19,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 49 [2021-11-07 01:41:19,558 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:41:19,560 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:19,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:41:19,561 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:41:19,561 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: SIMPLIFY_QUICK does not support simplification with respect to context at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:157) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:239) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.eliminateOne(ElimStorePlain.java:625) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimAllRec(ElimStorePlain.java:520) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimOneRec(ElimStorePlain.java:301) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.eliminateOne(ElimStorePlain.java:607) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimAllRec(ElimStorePlain.java:520) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:242) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:402) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.quantifier(PartialQuantifierElimination.java:228) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:279) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:98) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-07 01:41:19,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:41:19,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 19 [2021-11-07 01:41:19,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348152292] [2021-11-07 01:41:19,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-07 01:41:19,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:41:19,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-07 01:41:19,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2021-11-07 01:41:19,566 INFO L87 Difference]: Start difference. First operand 55 states and 62 transitions. Second operand has 19 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 19 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:19,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:41:19,872 INFO L93 Difference]: Finished difference Result 106 states and 114 transitions. [2021-11-07 01:41:19,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 01:41:19,873 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 19 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-07 01:41:19,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:41:19,874 INFO L225 Difference]: With dead ends: 106 [2021-11-07 01:41:19,874 INFO L226 Difference]: Without dead ends: 72 [2021-11-07 01:41:19,874 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2021-11-07 01:41:19,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-11-07 01:41:19,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 53. [2021-11-07 01:41:19,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 52 states have internal predecessors, (58), 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) [2021-11-07 01:41:19,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2021-11-07 01:41:19,897 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 35 [2021-11-07 01:41:19,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:41:19,897 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2021-11-07 01:41:19,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 19 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:19,898 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2021-11-07 01:41:19,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 01:41:19,899 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:19,899 INFO L513 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:41:19,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:41:20,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-11-07 01:41:20,117 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:41:20,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:20,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1967812793, now seen corresponding path program 8 times [2021-11-07 01:41:20,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:41:20,118 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910420521] [2021-11-07 01:41:20,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:20,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:41:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:22,044 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:22,045 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:41:22,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910420521] [2021-11-07 01:41:22,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910420521] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:41:22,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843509637] [2021-11-07 01:41:22,045 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 01:41:22,045 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:41:22,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:41:22,046 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:41:22,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89515265-02f2-45ca-9142-64257f52d72d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-07 01:41:22,955 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-11-07 01:41:22,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:41:22,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 58 conjunts are in the unsatisfiable core [2021-11-07 01:41:22,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:23,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:23,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 121 treesize of output 119 [2021-11-07 01:41:23,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-07 01:41:23,326 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 0 case distinctions, treesize of input 95 treesize of output 76 [2021-11-07 01:41:23,500 INFO L354 Elim1Store]: treesize reduction 917, result has 10.4 percent of original size [2021-11-07 01:41:23,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 5 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 790 treesize of output 494 [2021-11-07 01:41:23,539 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:41:23,573 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:41:23,611 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:41:23,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:23,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:23,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:23,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:23,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:23,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:23,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 29 [2021-11-07 01:41:23,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:23,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:23,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:23,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:23,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:23,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:23,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 44 [2021-11-07 01:41:23,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:23,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:23,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:23,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:23,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:23,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:23,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 29 [2021-11-07 01:41:23,670 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-11-07 01:41:23,671 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 60 treesize of output 40 [2021-11-07 01:41:23,773 INFO L354 Elim1Store]: treesize reduction 58, result has 30.1 percent of original size [2021-11-07 01:41:23,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 201 treesize of output 199 [2021-11-07 01:41:23,802 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:23,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2021-11-07 01:41:23,812 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 0 case distinctions, treesize of input 158 treesize of output 135 [2021-11-07 01:41:24,166 INFO L354 Elim1Store]: treesize reduction 2173, result has 7.9 percent of original size [2021-11-07 01:41:24,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 5 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 40 case distinctions, treesize of input 1275 treesize of output 772 [2021-11-07 01:41:24,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,299 INFO L354 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-11-07 01:41:24,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 45 [2021-11-07 01:41:24,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,343 INFO L354 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-11-07 01:41:24,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 38 [2021-11-07 01:41:24,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,365 INFO L354 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-11-07 01:41:24,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 123 treesize of output 71 [2021-11-07 01:41:24,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:24,406 INFO L354 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-11-07 01:41:24,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 46 [2021-11-07 01:41:25,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:25,144 INFO L354 Elim1Store]: treesize reduction 137, result has 23.9 percent of original size [2021-11-07 01:41:25,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 162 treesize of output 181 [2021-11-07 01:41:25,193 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 0 case distinctions, treesize of input 118 treesize of output 95 [2021-11-07 01:41:25,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:25,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:25,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:25,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:25,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:25,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:25,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:25,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:25,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:25,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:25,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:25,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:25,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:25,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:25,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:25,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:25,229 INFO L354 Elim1Store]: treesize reduction 66, result has 15.4 percent of original size [2021-11-07 01:41:25,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 83 [2021-11-07 01:41:25,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:25,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:25,250 INFO L354 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-11-07 01:41:25,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 31 [2021-11-07 01:41:27,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,542 INFO L354 Elim1Store]: treesize reduction 252, result has 19.5 percent of original size [2021-11-07 01:41:27,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 241 treesize of output 269 [2021-11-07 01:41:27,584 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 0 case distinctions, treesize of input 188 treesize of output 163 [2021-11-07 01:41:27,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,636 INFO L354 Elim1Store]: treesize reduction 121, result has 15.4 percent of original size [2021-11-07 01:41:27,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 5 case distinctions, treesize of input 103 treesize of output 109 [2021-11-07 01:41:27,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:27,664 INFO L354 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-11-07 01:41:27,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 34 [2021-11-07 01:41:28,049 INFO L354 Elim1Store]: treesize reduction 368, result has 21.2 percent of original size [2021-11-07 01:41:28,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 294 treesize of output 315 [2021-11-07 01:41:28,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:28,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:28,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:28,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:28,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:28,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:28,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:28,395 INFO L354 Elim1Store]: treesize reduction 26, result has 46.9 percent of original size [2021-11-07 01:41:28,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 129 treesize of output 88 [2021-11-07 01:41:28,425 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 0 case distinctions, treesize of input 209 treesize of output 176 [2021-11-07 01:41:29,564 INFO L354 Elim1Store]: treesize reduction 4569, result has 7.1 percent of original size [2021-11-07 01:41:29,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 5 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 13 new quantified variables, introduced 73 case distinctions, treesize of input 676 treesize of output 664 [2021-11-07 01:41:29,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,701 INFO L354 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2021-11-07 01:41:29,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 61 [2021-11-07 01:41:29,756 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:41:29,778 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:41:29,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:29,911 INFO L354 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2021-11-07 01:41:29,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 20 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 114 treesize of output 68 [2021-11-07 01:41:30,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,107 INFO L354 Elim1Store]: treesize reduction 55, result has 17.9 percent of original size [2021-11-07 01:41:30,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 24 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 4 case distinctions, treesize of input 125 treesize of output 87 [2021-11-07 01:41:30,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,298 INFO L354 Elim1Store]: treesize reduction 33, result has 2.9 percent of original size [2021-11-07 01:41:30,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 111 treesize of output 68 [2021-11-07 01:41:30,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,443 INFO L354 Elim1Store]: treesize reduction 59, result has 28.0 percent of original size [2021-11-07 01:41:30,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 23 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 5 case distinctions, treesize of input 190 treesize of output 141 [2021-11-07 01:41:30,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:30,561 INFO L354 Elim1Store]: treesize reduction 81, result has 1.2 percent of original size [2021-11-07 01:41:30,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 23 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 5 case distinctions, treesize of input 179 treesize of output 109 [2021-11-07 01:41:30,593 INFO L354 Elim1Store]: treesize reduction 462, result has 0.2 percent of original size [2021-11-07 01:41:30,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 201 treesize of output 97 [2021-11-07 01:41:31,391 INFO L354 Elim1Store]: treesize reduction 470, result has 18.8 percent of original size [2021-11-07 01:41:31,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 249 treesize of output 289 [2021-11-07 01:41:31,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:31,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:31,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:31,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:31,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:31,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:31,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:31,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:31,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:31,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:31,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:31,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:31,600 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-11-07 01:41:31,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 133 treesize of output 70 [2021-11-07 01:41:31,612 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 0 case distinctions, treesize of input 157 treesize of output 122 [2021-11-07 01:41:32,716 INFO L354 Elim1Store]: treesize reduction 3390, result has 8.4 percent of original size [2021-11-07 01:41:32,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 5 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 13 new quantified variables, introduced 73 case distinctions, treesize of input 384 treesize of output 510 [2021-11-07 01:41:32,780 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:41:32,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,861 INFO L354 Elim1Store]: treesize reduction 54, result has 15.6 percent of original size [2021-11-07 01:41:32,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 24 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 4 case distinctions, treesize of input 110 treesize of output 81 [2021-11-07 01:41:32,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:32,973 INFO L354 Elim1Store]: treesize reduction 43, result has 32.8 percent of original size [2021-11-07 01:41:32,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 24 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 4 case distinctions, treesize of input 111 treesize of output 92 [2021-11-07 01:41:33,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:33,085 INFO L354 Elim1Store]: treesize reduction 54, result has 15.6 percent of original size [2021-11-07 01:41:33,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 24 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 4 case distinctions, treesize of input 227 treesize of output 154 [2021-11-07 01:41:33,172 INFO L354 Elim1Store]: treesize reduction 376, result has 2.6 percent of original size [2021-11-07 01:41:33,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 202 treesize of output 123 [2021-11-07 01:41:34,095 INFO L354 Elim1Store]: treesize reduction 663, result has 16.1 percent of original size [2021-11-07 01:41:34,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 27 case distinctions, treesize of input 327 treesize of output 382 [2021-11-07 01:41:34,355 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 0 case distinctions, treesize of input 257 treesize of output 224 [2021-11-07 01:41:34,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,468 INFO L354 Elim1Store]: treesize reduction 272, result has 14.5 percent of original size [2021-11-07 01:41:34,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 38 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 11 case distinctions, treesize of input 164 treesize of output 181 [2021-11-07 01:41:34,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:34,528 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-11-07 01:41:34,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 3 case distinctions, treesize of input 193 treesize of output 76 [2021-11-07 01:41:37,153 INFO L354 Elim1Store]: treesize reduction 844, result has 15.2 percent of original size [2021-11-07 01:41:37,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 375 treesize of output 445 [2021-11-07 01:41:37,560 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 0 case distinctions, treesize of input 287 treesize of output 252 [2021-11-07 01:41:37,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,650 INFO L354 Elim1Store]: treesize reduction 195, result has 15.9 percent of original size [2021-11-07 01:41:37,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 51 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 7 case distinctions, treesize of input 192 treesize of output 211 [2021-11-07 01:41:37,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:41:37,717 INFO L354 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2021-11-07 01:41:37,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 27 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 1 case distinctions, treesize of input 238 treesize of output 109 [2021-11-07 01:41:40,780 INFO L354 Elim1Store]: treesize reduction 441, result has 0.2 percent of original size [2021-11-07 01:41:40,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 201 treesize of output 102 [2021-11-07 01:41:40,858 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 4 proven. 57 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:41:40,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:42:07,004 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:42:07,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 1178544 treesize of output 1178544 [2021-11-07 01:42:07,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2021-11-07 01:42:07,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2021-11-07 01:42:07,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1178516 treesize of output 1047440