./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array19_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-patterns/array19_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V --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 21ab39d122ec2c6e96fa6b8c9d53d6f966068253a8a3d3ba32389613dd7dc54a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:29:39,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:29:39,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:29:39,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:29:39,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:29:39,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:29:39,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:29:39,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:29:39,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:29:39,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:29:39,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:29:39,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:29:39,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:29:39,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:29:39,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:29:39,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:29:39,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:29:39,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:29:39,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:29:39,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:29:39,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:29:39,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:29:39,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:29:39,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:29:39,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:29:39,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:29:39,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:29:39,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:29:39,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:29:39,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:29:39,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:29:39,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:29:39,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:29:39,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:29:39,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:29:39,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:29:39,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:29:39,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:29:39,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:29:39,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:29:39,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:29:39,300 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:29:39,348 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:29:39,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:29:39,349 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:29:39,349 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:29:39,350 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:29:39,351 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:29:39,351 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:29:39,351 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:29:39,351 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:29:39,352 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:29:39,353 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:29:39,353 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:29:39,353 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:29:39,353 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:29:39,354 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:29:39,354 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:29:39,354 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:29:39,354 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:29:39,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:29:39,355 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:29:39,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:29:39,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:29:39,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:29:39,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:29:39,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:29:39,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:29:39,358 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:29:39,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:29:39,359 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:29:39,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:29:39,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:29:39,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:29:39,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:29:39,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:29:39,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:29:39,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:29:39,361 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:29:39,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:29:39,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:29:39,362 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:29:39,362 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:29:39,363 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_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21ab39d122ec2c6e96fa6b8c9d53d6f966068253a8a3d3ba32389613dd7dc54a [2021-11-23 03:29:39,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:29:39,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:29:39,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:29:39,692 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:29:39,693 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:29:39,694 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/array-patterns/array19_pattern.c [2021-11-23 03:29:39,762 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/data/918c623db/bbbca9319d6c422d8ce2fae08845eb74/FLAGd27f851c8 [2021-11-23 03:29:40,304 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:29:40,304 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/sv-benchmarks/c/array-patterns/array19_pattern.c [2021-11-23 03:29:40,316 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/data/918c623db/bbbca9319d6c422d8ce2fae08845eb74/FLAGd27f851c8 [2021-11-23 03:29:40,668 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/data/918c623db/bbbca9319d6c422d8ce2fae08845eb74 [2021-11-23 03:29:40,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:29:40,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:29:40,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:29:40,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:29:40,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:29:40,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:29:40" (1/1) ... [2021-11-23 03:29:40,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79ccee4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:40, skipping insertion in model container [2021-11-23 03:29:40,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:29:40" (1/1) ... [2021-11-23 03:29:40,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:29:40,702 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:29:40,888 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/sv-benchmarks/c/array-patterns/array19_pattern.c[1442,1455] [2021-11-23 03:29:40,937 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:29:40,951 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:29:40,970 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/sv-benchmarks/c/array-patterns/array19_pattern.c[1442,1455] [2021-11-23 03:29:40,996 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:29:41,011 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:29:41,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:41 WrapperNode [2021-11-23 03:29:41,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:29:41,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:29:41,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:29:41,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:29:41,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:41" (1/1) ... [2021-11-23 03:29:41,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:41" (1/1) ... [2021-11-23 03:29:41,076 INFO L137 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 102 [2021-11-23 03:29:41,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:29:41,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:29:41,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:29:41,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:29:41,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:41" (1/1) ... [2021-11-23 03:29:41,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:41" (1/1) ... [2021-11-23 03:29:41,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:41" (1/1) ... [2021-11-23 03:29:41,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:41" (1/1) ... [2021-11-23 03:29:41,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:41" (1/1) ... [2021-11-23 03:29:41,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:41" (1/1) ... [2021-11-23 03:29:41,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:41" (1/1) ... [2021-11-23 03:29:41,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:29:41,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:29:41,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:29:41,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:29:41,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:41" (1/1) ... [2021-11-23 03:29:41,142 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:29:41,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:29:41,174 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:29:41,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:29:41,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:29:41,222 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 03:29:41,222 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 03:29:41,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:29:41,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:29:41,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:29:41,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:29:41,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:29:41,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:29:41,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:29:41,298 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:29:41,300 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:29:41,542 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:29:41,639 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:29:41,639 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-23 03:29:41,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:29:41 BoogieIcfgContainer [2021-11-23 03:29:41,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:29:41,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:29:41,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:29:41,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:29:41,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:29:40" (1/3) ... [2021-11-23 03:29:41,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9f392e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:29:41, skipping insertion in model container [2021-11-23 03:29:41,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:41" (2/3) ... [2021-11-23 03:29:41,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9f392e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:29:41, skipping insertion in model container [2021-11-23 03:29:41,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:29:41" (3/3) ... [2021-11-23 03:29:41,654 INFO L111 eAbstractionObserver]: Analyzing ICFG array19_pattern.c [2021-11-23 03:29:41,659 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:29:41,659 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:29:41,726 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:29:41,736 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 [2021-11-23 03:29:41,737 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:29:41,764 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:29:41,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 03:29:41,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:29:41,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:29:41,771 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:29:41,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:29:41,777 INFO L85 PathProgramCache]: Analyzing trace with hash -2071670553, now seen corresponding path program 1 times [2021-11-23 03:29:41,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:29:41,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056439923] [2021-11-23 03:29:41,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:29:41,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:29:41,883 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:29:41,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [572236158] [2021-11-23 03:29:41,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:29:41,885 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:29:41,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:29:41,889 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:29:41,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:29:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:29:41,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 03:29:41,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:29:42,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:29:42,055 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:29:42,056 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:29:42,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056439923] [2021-11-23 03:29:42,057 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:29:42,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572236158] [2021-11-23 03:29:42,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572236158] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:29:42,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:29:42,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:29:42,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585925295] [2021-11-23 03:29:42,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:29:42,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 03:29:42,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:29:42,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 03:29:42,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:29:42,104 INFO L87 Difference]: Start difference. First operand has 20 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:29:42,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:29:42,145 INFO L93 Difference]: Finished difference Result 28 states and 38 transitions. [2021-11-23 03:29:42,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 03:29:42,148 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-11-23 03:29:42,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:29:42,155 INFO L225 Difference]: With dead ends: 28 [2021-11-23 03:29:42,155 INFO L226 Difference]: Without dead ends: 18 [2021-11-23 03:29:42,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:29:42,162 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:29:42,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:29:42,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-23 03:29:42,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-11-23 03:29:42,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:29:42,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2021-11-23 03:29:42,201 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 24 transitions. Word has length 11 [2021-11-23 03:29:42,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:29:42,202 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-11-23 03:29:42,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:29:42,203 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2021-11-23 03:29:42,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 03:29:42,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:29:42,204 INFO L514 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:29:42,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:29:42,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-23 03:29:42,420 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:29:42,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:29:42,421 INFO L85 PathProgramCache]: Analyzing trace with hash 916633033, now seen corresponding path program 1 times [2021-11-23 03:29:42,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:29:42,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007552343] [2021-11-23 03:29:42,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:29:42,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:29:42,437 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:29:42,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1859078844] [2021-11-23 03:29:42,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:29:42,438 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:29:42,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:29:42,441 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:29:42,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 03:29:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:29:42,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 03:29:42,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:29:42,669 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 03:29:42,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:29:42,670 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:29:42,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007552343] [2021-11-23 03:29:42,671 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:29:42,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859078844] [2021-11-23 03:29:42,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859078844] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:29:42,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:29:42,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:29:42,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868953371] [2021-11-23 03:29:42,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:29:42,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:29:42,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:29:42,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:29:42,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:29:42,682 INFO L87 Difference]: Start difference. First operand 18 states and 24 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-23 03:29:42,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:29:42,742 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2021-11-23 03:29:42,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:29:42,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2021-11-23 03:29:42,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:29:42,745 INFO L225 Difference]: With dead ends: 23 [2021-11-23 03:29:42,745 INFO L226 Difference]: Without dead ends: 20 [2021-11-23 03:29:42,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:29:42,748 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 7 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:29:42,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 36 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:29:42,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-23 03:29:42,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-23 03:29:42,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:29:42,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-11-23 03:29:42,761 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 27 transitions. Word has length 19 [2021-11-23 03:29:42,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:29:42,762 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-11-23 03:29:42,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-23 03:29:42,763 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2021-11-23 03:29:42,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 03:29:42,765 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:29:42,765 INFO L514 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:29:42,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 03:29:42,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:29:42,981 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:29:42,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:29:42,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1792495404, now seen corresponding path program 1 times [2021-11-23 03:29:42,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:29:42,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765392949] [2021-11-23 03:29:42,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:29:42,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:29:42,992 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:29:42,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1446850098] [2021-11-23 03:29:42,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:29:42,993 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:29:42,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:29:42,994 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:29:43,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 03:29:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:29:43,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 03:29:43,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:29:43,188 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 03:29:43,188 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:29:43,189 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:29:43,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765392949] [2021-11-23 03:29:43,189 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:29:43,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446850098] [2021-11-23 03:29:43,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446850098] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:29:43,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:29:43,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:29:43,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709003744] [2021-11-23 03:29:43,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:29:43,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:29:43,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:29:43,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:29:43,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:29:43,193 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-23 03:29:43,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:29:43,296 INFO L93 Difference]: Finished difference Result 41 states and 56 transitions. [2021-11-23 03:29:43,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:29:43,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2021-11-23 03:29:43,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:29:43,299 INFO L225 Difference]: With dead ends: 41 [2021-11-23 03:29:43,299 INFO L226 Difference]: Without dead ends: 25 [2021-11-23 03:29:43,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-23 03:29:43,305 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 11 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:29:43,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 39 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:29:43,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-23 03:29:43,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2021-11-23 03:29:43,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:29:43,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2021-11-23 03:29:43,322 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 28 transitions. Word has length 22 [2021-11-23 03:29:43,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:29:43,323 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 28 transitions. [2021-11-23 03:29:43,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-23 03:29:43,323 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2021-11-23 03:29:43,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 03:29:43,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:29:43,325 INFO L514 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:29:43,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 03:29:43,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-23 03:29:43,548 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:29:43,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:29:43,549 INFO L85 PathProgramCache]: Analyzing trace with hash -957199016, now seen corresponding path program 1 times [2021-11-23 03:29:43,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:29:43,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908260496] [2021-11-23 03:29:43,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:29:43,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:29:43,568 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:29:43,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [316530607] [2021-11-23 03:29:43,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:29:43,574 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:29:43,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:29:43,581 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:29:43,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 03:29:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:29:43,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 03:29:43,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:29:43,733 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 03:29:43,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:29:43,734 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:29:43,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908260496] [2021-11-23 03:29:43,734 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:29:43,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316530607] [2021-11-23 03:29:43,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316530607] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:29:43,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:29:43,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:29:43,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092535056] [2021-11-23 03:29:43,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:29:43,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:29:43,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:29:43,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:29:43,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:29:43,741 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-23 03:29:43,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:29:43,821 INFO L93 Difference]: Finished difference Result 40 states and 55 transitions. [2021-11-23 03:29:43,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:29:43,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2021-11-23 03:29:43,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:29:43,823 INFO L225 Difference]: With dead ends: 40 [2021-11-23 03:29:43,823 INFO L226 Difference]: Without dead ends: 23 [2021-11-23 03:29:43,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:29:43,824 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 12 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:29:43,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 29 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:29:43,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-23 03:29:43,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-11-23 03:29:43,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:29:43,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2021-11-23 03:29:43,830 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 28 transitions. Word has length 24 [2021-11-23 03:29:43,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:29:43,830 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 28 transitions. [2021-11-23 03:29:43,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-23 03:29:43,830 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2021-11-23 03:29:43,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 03:29:43,831 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:29:43,831 INFO L514 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:29:43,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 03:29:44,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:29:44,052 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:29:44,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:29:44,053 INFO L85 PathProgramCache]: Analyzing trace with hash 566593900, now seen corresponding path program 1 times [2021-11-23 03:29:44,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:29:44,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852760546] [2021-11-23 03:29:44,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:29:44,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:29:44,063 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:29:44,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [998451898] [2021-11-23 03:29:44,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:29:44,063 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:29:44,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:29:44,066 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:29:44,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d0e0875-7be5-49ba-afc4-0e5a5399d130/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 03:29:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:29:44,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-23 03:29:44,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:29:44,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 03:29:44,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 03:29:45,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 16 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 2567 treesize of output 2517 [2021-11-23 03:31:04,846 WARN L227 SmtUtils]: Spent 1.31m on a formula simplification. DAG size of input: 2807 DAG size of output: 425 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:31:04,860 INFO L354 Elim1Store]: treesize reduction 79319, result has 4.8 percent of original size [2021-11-23 03:31:04,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 16 stores, 17 select indices, 17 select index equivalence classes, 0 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 416 case distinctions, treesize of input 3677 treesize of output 6808 [2021-11-23 03:31:09,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:09,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:09,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:09,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:09,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:09,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:09,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:09,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:09,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:09,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:09,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:09,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:09,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:09,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:09,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:09,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:09,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:09,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:09,494 INFO L244 Elim1Store]: Index analysis took 490 ms [2021-11-23 03:31:09,914 INFO L354 Elim1Store]: treesize reduction 396, result has 9.6 percent of original size [2021-11-23 03:31:09,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 18 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 401 treesize of output 267 [2021-11-23 03:31:11,173 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:31:11,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:11,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:11,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:11,217 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:31:11,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:11,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:11,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:11,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:11,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:11,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:11,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:11,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 344 treesize of output 196 [2021-11-23 03:31:12,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:12,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:12,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:12,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:12,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:12,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:12,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:12,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:12,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:12,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:12,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:12,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:12,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:12,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:12,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:12,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:12,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:12,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:12,420 INFO L244 Elim1Store]: Index analysis took 404 ms [2021-11-23 03:31:13,107 INFO L354 Elim1Store]: treesize reduction 359, result has 19.9 percent of original size [2021-11-23 03:31:13,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 18 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 490 treesize of output 398 [2021-11-23 03:31:14,881 INFO L354 Elim1Store]: treesize reduction 1049, result has 11.9 percent of original size [2021-11-23 03:31:14,883 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 5950 treesize of output 5557 [2021-11-23 03:31:15,979 INFO L354 Elim1Store]: treesize reduction 990, result has 14.9 percent of original size [2021-11-23 03:31:15,980 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 5981 treesize of output 5987 [2021-11-23 03:31:17,562 INFO L354 Elim1Store]: treesize reduction 1158, result has 11.1 percent of original size [2021-11-23 03:31:17,563 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 6067 treesize of output 5996 [2021-11-23 03:31:18,747 INFO L354 Elim1Store]: treesize reduction 1095, result has 10.7 percent of original size [2021-11-23 03:31:18,749 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 6057 treesize of output 6012 [2021-11-23 03:31:21,923 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:31:22,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:22,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:22,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:22,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:22,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:22,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:22,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:22,542 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:31:22,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:22,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:22,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:22,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:22,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:22,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:22,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:22,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:22,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:22,668 INFO L244 Elim1Store]: Index analysis took 232 ms [2021-11-23 03:31:22,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 331 treesize of output 179 [2021-11-23 03:31:23,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:23,795 INFO L244 Elim1Store]: Index analysis took 567 ms [2021-11-23 03:31:23,889 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:31:23,890 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 380 treesize of output 253 [2021-11-23 03:31:25,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:25,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:25,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:25,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:25,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:26,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:26,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:26,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:26,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:26,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:26,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:26,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:26,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:26,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:26,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:26,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:26,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:26,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:26,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:26,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:26,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:26,310 INFO L244 Elim1Store]: Index analysis took 374 ms [2021-11-23 03:31:26,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 329 treesize of output 178