./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3b154baf348652a9aadd484f41053a90df6581eb3d7346fd488d4cc05040e74b --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:20:39,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:20:39,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:20:39,079 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:20:39,080 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:20:39,081 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:20:39,082 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:20:39,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:20:39,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:20:39,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:20:39,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:20:39,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:20:39,091 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:20:39,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:20:39,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:20:39,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:20:39,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:20:39,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:20:39,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:20:39,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:20:39,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:20:39,115 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:20:39,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:20:39,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:20:39,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:20:39,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:20:39,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:20:39,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:20:39,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:20:39,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:20:39,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:20:39,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:20:39,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:20:39,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:20:39,141 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:20:39,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:20:39,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:20:39,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:20:39,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:20:39,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:20:39,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:20:39,148 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 18:20:39,194 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:20:39,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:20:39,195 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:20:39,195 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:20:39,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:20:39,203 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:20:39,203 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:20:39,203 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:20:39,204 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:20:39,204 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:20:39,205 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:20:39,205 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:20:39,205 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:20:39,206 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:20:39,206 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:20:39,206 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:20:39,206 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:20:39,207 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:20:39,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:20:39,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:20:39,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:20:39,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:20:39,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:20:39,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:20:39,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:20:39,210 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:20:39,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:20:39,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:20:39,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:20:39,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:20:39,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:20:39,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:20:39,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:20:39,214 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:20:39,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:20:39,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:20:39,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:20:39,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:20:39,215 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_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b154baf348652a9aadd484f41053a90df6581eb3d7346fd488d4cc05040e74b [2021-11-25 18:20:39,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:20:39,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:20:39,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:20:39,531 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:20:39,532 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:20:39,533 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2021-11-25 18:20:39,620 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/data/712bb0620/6dc836c2b6ab41b9bc3c33896049a715/FLAGb016e66e8 [2021-11-25 18:20:40,438 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:20:40,439 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2021-11-25 18:20:40,486 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/data/712bb0620/6dc836c2b6ab41b9bc3c33896049a715/FLAGb016e66e8 [2021-11-25 18:20:40,980 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/data/712bb0620/6dc836c2b6ab41b9bc3c33896049a715 [2021-11-25 18:20:40,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:20:40,985 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:20:40,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:20:40,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:20:40,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:20:40,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:20:40" (1/1) ... [2021-11-25 18:20:40,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a87e084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:40, skipping insertion in model container [2021-11-25 18:20:40,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:20:40" (1/1) ... [2021-11-25 18:20:41,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:20:41,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:20:42,318 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_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i[119285,119298] [2021-11-25 18:20:42,439 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:20:42,494 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:20:42,845 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_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i[119285,119298] [2021-11-25 18:20:42,870 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:20:42,948 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:20:42,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:42 WrapperNode [2021-11-25 18:20:42,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:20:42,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:20:42,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:20:42,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:20:42,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:42" (1/1) ... [2021-11-25 18:20:43,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:42" (1/1) ... [2021-11-25 18:20:43,194 INFO L137 Inliner]: procedures = 144, calls = 800, calls flagged for inlining = 49, calls inlined = 41, statements flattened = 1426 [2021-11-25 18:20:43,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:20:43,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:20:43,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:20:43,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:20:43,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:42" (1/1) ... [2021-11-25 18:20:43,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:42" (1/1) ... [2021-11-25 18:20:43,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:42" (1/1) ... [2021-11-25 18:20:43,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:42" (1/1) ... [2021-11-25 18:20:43,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:42" (1/1) ... [2021-11-25 18:20:43,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:42" (1/1) ... [2021-11-25 18:20:43,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:42" (1/1) ... [2021-11-25 18:20:43,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:20:43,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:20:43,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:20:43,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:20:43,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:42" (1/1) ... [2021-11-25 18:20:43,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:20:43,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:20:43,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:20:43,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:20:43,470 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2021-11-25 18:20:43,471 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2021-11-25 18:20:43,471 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2021-11-25 18:20:43,471 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2021-11-25 18:20:43,471 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2021-11-25 18:20:43,472 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2021-11-25 18:20:43,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pt_mutex [2021-11-25 18:20:43,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pt_mutex [2021-11-25 18:20:43,472 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2021-11-25 18:20:43,472 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2021-11-25 18:20:43,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:20:43,473 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2021-11-25 18:20:43,473 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2021-11-25 18:20:43,473 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2021-11-25 18:20:43,473 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2021-11-25 18:20:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure pt_media_access_cmd [2021-11-25 18:20:43,474 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_media_access_cmd [2021-11-25 18:20:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 18:20:43,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 18:20:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure pt_reset [2021-11-25 18:20:43,475 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_reset [2021-11-25 18:20:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure pt_identify [2021-11-25 18:20:43,475 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_identify [2021-11-25 18:20:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure pt_command [2021-11-25 18:20:43,476 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_command [2021-11-25 18:20:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:20:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-25 18:20:43,476 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-25 18:20:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write [2021-11-25 18:20:43,477 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write [2021-11-25 18:20:43,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-25 18:20:43,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-25 18:20:43,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 18:20:43,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 18:20:43,478 INFO L130 BoogieDeclarations]: Found specification of procedure pt_atapi [2021-11-25 18:20:43,478 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_atapi [2021-11-25 18:20:43,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:20:43,478 INFO L130 BoogieDeclarations]: Found specification of procedure pt_poll_dsc [2021-11-25 18:20:43,478 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_poll_dsc [2021-11-25 18:20:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pt_mutex [2021-11-25 18:20:43,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pt_mutex [2021-11-25 18:20:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-25 18:20:43,479 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-25 18:20:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure pt_req_sense [2021-11-25 18:20:43,480 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_req_sense [2021-11-25 18:20:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-25 18:20:43,480 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-25 18:20:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:20:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_17 [2021-11-25 18:20:43,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_17 [2021-11-25 18:20:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-25 18:20:43,481 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-25 18:20:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 18:20:43,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 18:20:43,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:20:43,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:20:43,482 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2021-11-25 18:20:43,482 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2021-11-25 18:20:43,483 INFO L130 BoogieDeclarations]: Found specification of procedure pt_completion [2021-11-25 18:20:43,483 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_completion [2021-11-25 18:20:43,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:20:43,483 INFO L130 BoogieDeclarations]: Found specification of procedure pt_sleep [2021-11-25 18:20:43,483 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_sleep [2021-11-25 18:20:43,484 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write_fm [2021-11-25 18:20:43,484 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write_fm [2021-11-25 18:20:43,484 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2021-11-25 18:20:43,484 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2021-11-25 18:20:43,484 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2021-11-25 18:20:43,485 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2021-11-25 18:20:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:20:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 18:20:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2021-11-25 18:20:43,485 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2021-11-25 18:20:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2021-11-25 18:20:43,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2021-11-25 18:20:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-25 18:20:43,486 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-25 18:20:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure pt_wait [2021-11-25 18:20:43,487 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_wait [2021-11-25 18:20:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2021-11-25 18:20:43,487 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2021-11-25 18:20:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2021-11-25 18:20:43,487 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2021-11-25 18:20:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure pt_probe [2021-11-25 18:20:43,488 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_probe [2021-11-25 18:20:43,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:20:43,489 INFO L130 BoogieDeclarations]: Found specification of procedure pt_rewind [2021-11-25 18:20:43,489 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_rewind [2021-11-25 18:20:43,490 INFO L130 BoogieDeclarations]: Found specification of procedure xn [2021-11-25 18:20:43,491 INFO L138 BoogieDeclarations]: Found implementation of procedure xn [2021-11-25 18:20:43,491 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-25 18:20:43,491 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-25 18:20:43,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:20:43,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:20:43,492 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2021-11-25 18:20:43,492 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2021-11-25 18:20:44,055 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:20:44,059 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:20:51,528 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:20:51,862 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:20:51,862 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-25 18:20:51,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:20:51 BoogieIcfgContainer [2021-11-25 18:20:51,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:20:51,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:20:51,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:20:51,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:20:51,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:20:40" (1/3) ... [2021-11-25 18:20:51,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c70b05d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:20:51, skipping insertion in model container [2021-11-25 18:20:51,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:42" (2/3) ... [2021-11-25 18:20:51,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c70b05d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:20:51, skipping insertion in model container [2021-11-25 18:20:51,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:20:51" (3/3) ... [2021-11-25 18:20:51,879 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2021-11-25 18:20:51,887 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:20:51,887 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 18:20:51,952 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:20:51,965 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:20:51,965 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 18:20:52,008 INFO L276 IsEmpty]: Start isEmpty. Operand has 540 states, 333 states have (on average 1.3753753753753755) internal successors, (458), 355 states have internal predecessors, (458), 167 states have call successors, (167), 42 states have call predecessors, (167), 42 states have return successors, (167), 167 states have call predecessors, (167), 167 states have call successors, (167) [2021-11-25 18:20:52,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-25 18:20:52,022 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:20:52,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:20:52,030 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:20:52,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:20:52,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1019690387, now seen corresponding path program 1 times [2021-11-25 18:20:52,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:20:52,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774829397] [2021-11-25 18:20:52,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:20:52,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:20:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:20:52,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:20:52,519 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:20:52,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774829397] [2021-11-25 18:20:52,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774829397] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:20:52,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:20:52,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:20:52,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715126669] [2021-11-25 18:20:52,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:20:52,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:20:52,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:20:52,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:20:52,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:20:52,576 INFO L87 Difference]: Start difference. First operand has 540 states, 333 states have (on average 1.3753753753753755) internal successors, (458), 355 states have internal predecessors, (458), 167 states have call successors, (167), 42 states have call predecessors, (167), 42 states have return successors, (167), 167 states have call predecessors, (167), 167 states have call successors, (167) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:20:53,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:20:53,726 INFO L93 Difference]: Finished difference Result 1311 states and 1957 transitions. [2021-11-25 18:20:53,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:20:53,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2021-11-25 18:20:53,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:20:53,753 INFO L225 Difference]: With dead ends: 1311 [2021-11-25 18:20:53,753 INFO L226 Difference]: Without dead ends: 768 [2021-11-25 18:20:53,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:20:53,768 INFO L933 BasicCegarLoop]: 871 mSDtfsCounter, 347 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:20:53,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 1522 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-25 18:20:53,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2021-11-25 18:20:53,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 748. [2021-11-25 18:20:53,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 455 states have (on average 1.3648351648351649) internal successors, (621), 477 states have internal predecessors, (621), 228 states have call successors, (228), 65 states have call predecessors, (228), 64 states have return successors, (222), 222 states have call predecessors, (222), 222 states have call successors, (222) [2021-11-25 18:20:53,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1071 transitions. [2021-11-25 18:20:53,896 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1071 transitions. Word has length 16 [2021-11-25 18:20:53,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:20:53,897 INFO L470 AbstractCegarLoop]: Abstraction has 748 states and 1071 transitions. [2021-11-25 18:20:53,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:20:53,898 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1071 transitions. [2021-11-25 18:20:53,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 18:20:53,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:20:53,900 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:20:53,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:20:53,900 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:20:53,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:20:53,901 INFO L85 PathProgramCache]: Analyzing trace with hash -243826793, now seen corresponding path program 1 times [2021-11-25 18:20:53,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:20:53,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786022761] [2021-11-25 18:20:53,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:20:53,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:20:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:20:54,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:20:54,030 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:20:54,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786022761] [2021-11-25 18:20:54,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786022761] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:20:54,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:20:54,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:20:54,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11907525] [2021-11-25 18:20:54,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:20:54,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:20:54,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:20:54,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:20:54,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:20:54,035 INFO L87 Difference]: Start difference. First operand 748 states and 1071 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:20:54,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:20:54,402 INFO L93 Difference]: Finished difference Result 1495 states and 2141 transitions. [2021-11-25 18:20:54,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:20:54,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-25 18:20:54,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:20:54,410 INFO L225 Difference]: With dead ends: 1495 [2021-11-25 18:20:54,411 INFO L226 Difference]: Without dead ends: 748 [2021-11-25 18:20:54,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:20:54,416 INFO L933 BasicCegarLoop]: 675 mSDtfsCounter, 750 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:20:54,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [750 Valid, 675 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 18:20:54,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2021-11-25 18:20:54,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 748. [2021-11-25 18:20:54,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 455 states have (on average 1.3604395604395605) internal successors, (619), 477 states have internal predecessors, (619), 228 states have call successors, (228), 65 states have call predecessors, (228), 64 states have return successors, (222), 222 states have call predecessors, (222), 222 states have call successors, (222) [2021-11-25 18:20:54,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1069 transitions. [2021-11-25 18:20:54,479 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1069 transitions. Word has length 15 [2021-11-25 18:20:54,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:20:54,480 INFO L470 AbstractCegarLoop]: Abstraction has 748 states and 1069 transitions. [2021-11-25 18:20:54,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:20:54,480 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1069 transitions. [2021-11-25 18:20:54,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 18:20:54,481 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:20:54,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:20:54,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:20:54,482 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:20:54,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:20:54,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1431047827, now seen corresponding path program 1 times [2021-11-25 18:20:54,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:20:54,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858305839] [2021-11-25 18:20:54,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:20:54,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:20:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:20:54,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:20:54,565 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:20:54,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858305839] [2021-11-25 18:20:54,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858305839] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:20:54,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:20:54,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:20:54,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874295662] [2021-11-25 18:20:54,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:20:54,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:20:54,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:20:54,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:20:54,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:20:54,570 INFO L87 Difference]: Start difference. First operand 748 states and 1069 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:20:55,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:20:55,167 INFO L93 Difference]: Finished difference Result 1655 states and 2347 transitions. [2021-11-25 18:20:55,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:20:55,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-11-25 18:20:55,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:20:55,176 INFO L225 Difference]: With dead ends: 1655 [2021-11-25 18:20:55,176 INFO L226 Difference]: Without dead ends: 908 [2021-11-25 18:20:55,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:20:55,184 INFO L933 BasicCegarLoop]: 838 mSDtfsCounter, 325 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:20:55,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 1395 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 18:20:55,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2021-11-25 18:20:55,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 908. [2021-11-25 18:20:55,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 547 states have (on average 1.3455210237659962) internal successors, (736), 574 states have internal predecessors, (736), 273 states have call successors, (273), 88 states have call predecessors, (273), 87 states have return successors, (267), 267 states have call predecessors, (267), 267 states have call successors, (267) [2021-11-25 18:20:55,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1276 transitions. [2021-11-25 18:20:55,309 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1276 transitions. Word has length 17 [2021-11-25 18:20:55,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:20:55,310 INFO L470 AbstractCegarLoop]: Abstraction has 908 states and 1276 transitions. [2021-11-25 18:20:55,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:20:55,312 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1276 transitions. [2021-11-25 18:20:55,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-25 18:20:55,314 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:20:55,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:20:55,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:20:55,315 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:20:55,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:20:55,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1785446279, now seen corresponding path program 1 times [2021-11-25 18:20:55,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:20:55,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104467473] [2021-11-25 18:20:55,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:20:55,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:20:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:20:55,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:20:55,408 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:20:55,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104467473] [2021-11-25 18:20:55,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104467473] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:20:55,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:20:55,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:20:55,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347245603] [2021-11-25 18:20:55,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:20:55,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:20:55,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:20:55,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:20:55,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:20:55,410 INFO L87 Difference]: Start difference. First operand 908 states and 1276 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:20:56,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:20:56,406 INFO L93 Difference]: Finished difference Result 1828 states and 2574 transitions. [2021-11-25 18:20:56,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:20:56,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-25 18:20:56,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:20:56,415 INFO L225 Difference]: With dead ends: 1828 [2021-11-25 18:20:56,415 INFO L226 Difference]: Without dead ends: 930 [2021-11-25 18:20:56,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:20:56,421 INFO L933 BasicCegarLoop]: 677 mSDtfsCounter, 10 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1349 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:20:56,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 1349 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 18:20:56,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2021-11-25 18:20:56,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 910. [2021-11-25 18:20:56,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 549 states have (on average 1.3442622950819672) internal successors, (738), 576 states have internal predecessors, (738), 273 states have call successors, (273), 88 states have call predecessors, (273), 87 states have return successors, (267), 267 states have call predecessors, (267), 267 states have call successors, (267) [2021-11-25 18:20:56,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1278 transitions. [2021-11-25 18:20:56,480 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1278 transitions. Word has length 19 [2021-11-25 18:20:56,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:20:56,480 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1278 transitions. [2021-11-25 18:20:56,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:20:56,481 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1278 transitions. [2021-11-25 18:20:56,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-25 18:20:56,482 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:20:56,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:20:56,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 18:20:56,483 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:20:56,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:20:56,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1718297963, now seen corresponding path program 1 times [2021-11-25 18:20:56,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:20:56,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761433501] [2021-11-25 18:20:56,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:20:56,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:20:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:20:56,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:20:56,573 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:20:56,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761433501] [2021-11-25 18:20:56,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761433501] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:20:56,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:20:56,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:20:56,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924609973] [2021-11-25 18:20:56,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:20:56,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:20:56,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:20:56,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:20:56,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:20:56,576 INFO L87 Difference]: Start difference. First operand 910 states and 1278 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:20:57,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:20:57,317 INFO L93 Difference]: Finished difference Result 2007 states and 2867 transitions. [2021-11-25 18:20:57,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:20:57,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-25 18:20:57,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:20:57,329 INFO L225 Difference]: With dead ends: 2007 [2021-11-25 18:20:57,329 INFO L226 Difference]: Without dead ends: 1107 [2021-11-25 18:20:57,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:20:57,335 INFO L933 BasicCegarLoop]: 924 mSDtfsCounter, 183 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 1642 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:20:57,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 1642 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 18:20:57,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2021-11-25 18:20:57,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 918. [2021-11-25 18:20:57,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 557 states have (on average 1.3464991023339319) internal successors, (750), 584 states have internal predecessors, (750), 273 states have call successors, (273), 88 states have call predecessors, (273), 87 states have return successors, (267), 267 states have call predecessors, (267), 267 states have call successors, (267) [2021-11-25 18:20:57,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1290 transitions. [2021-11-25 18:20:57,409 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1290 transitions. Word has length 22 [2021-11-25 18:20:57,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:20:57,410 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1290 transitions. [2021-11-25 18:20:57,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:20:57,410 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1290 transitions. [2021-11-25 18:20:57,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-25 18:20:57,412 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:20:57,412 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:20:57,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 18:20:57,412 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:20:57,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:20:57,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1684008486, now seen corresponding path program 1 times [2021-11-25 18:20:57,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:20:57,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173072559] [2021-11-25 18:20:57,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:20:57,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:20:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:20:57,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:20:57,522 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:20:57,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173072559] [2021-11-25 18:20:57,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173072559] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:20:57,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189015815] [2021-11-25 18:20:57,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:20:57,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:20:57,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:20:57,530 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:20:57,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:20:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:20:57,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 1044 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 18:20:57,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:20:58,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:20:58,037 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:20:58,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189015815] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:20:58,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 18:20:58,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-25 18:20:58,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799137826] [2021-11-25 18:20:58,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:20:58,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:20:58,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:20:58,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:20:58,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:20:58,040 INFO L87 Difference]: Start difference. First operand 918 states and 1290 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:20:58,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:20:58,443 INFO L93 Difference]: Finished difference Result 920 states and 1291 transitions. [2021-11-25 18:20:58,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:20:58,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-11-25 18:20:58,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:20:58,451 INFO L225 Difference]: With dead ends: 920 [2021-11-25 18:20:58,452 INFO L226 Difference]: Without dead ends: 917 [2021-11-25 18:20:58,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:20:58,454 INFO L933 BasicCegarLoop]: 673 mSDtfsCounter, 732 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:20:58,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [732 Valid, 673 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 18:20:58,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2021-11-25 18:20:58,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 917. [2021-11-25 18:20:58,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 557 states have (on average 1.3447037701974864) internal successors, (749), 583 states have internal predecessors, (749), 272 states have call successors, (272), 88 states have call predecessors, (272), 87 states have return successors, (267), 267 states have call predecessors, (267), 267 states have call successors, (267) [2021-11-25 18:20:58,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1288 transitions. [2021-11-25 18:20:58,532 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1288 transitions. Word has length 27 [2021-11-25 18:20:58,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:20:58,533 INFO L470 AbstractCegarLoop]: Abstraction has 917 states and 1288 transitions. [2021-11-25 18:20:58,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:20:58,534 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1288 transitions. [2021-11-25 18:20:58,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-25 18:20:58,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:20:58,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:20:58,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 18:20:58,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:20:58,761 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:20:58,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:20:58,761 INFO L85 PathProgramCache]: Analyzing trace with hash -665039918, now seen corresponding path program 1 times [2021-11-25 18:20:58,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:20:58,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199660212] [2021-11-25 18:20:58,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:20:58,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:20:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:20:58,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:20:58,870 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:20:58,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199660212] [2021-11-25 18:20:58,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199660212] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:20:58,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029148097] [2021-11-25 18:20:58,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:20:58,871 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:20:58,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:20:58,872 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:20:58,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 18:20:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:20:59,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 18:20:59,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:20:59,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:20:59,334 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:20:59,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029148097] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:20:59,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 18:20:59,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-25 18:20:59,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398461440] [2021-11-25 18:20:59,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:20:59,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:20:59,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:20:59,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:20:59,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:20:59,336 INFO L87 Difference]: Start difference. First operand 917 states and 1288 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:20:59,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:20:59,736 INFO L93 Difference]: Finished difference Result 919 states and 1289 transitions. [2021-11-25 18:20:59,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:20:59,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2021-11-25 18:20:59,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:20:59,744 INFO L225 Difference]: With dead ends: 919 [2021-11-25 18:20:59,744 INFO L226 Difference]: Without dead ends: 916 [2021-11-25 18:20:59,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:20:59,746 INFO L933 BasicCegarLoop]: 671 mSDtfsCounter, 729 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:20:59,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [729 Valid, 671 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 18:20:59,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2021-11-25 18:20:59,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 916. [2021-11-25 18:20:59,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 557 states have (on average 1.3429084380610412) internal successors, (748), 582 states have internal predecessors, (748), 271 states have call successors, (271), 88 states have call predecessors, (271), 87 states have return successors, (267), 267 states have call predecessors, (267), 267 states have call successors, (267) [2021-11-25 18:20:59,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1286 transitions. [2021-11-25 18:20:59,808 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1286 transitions. Word has length 28 [2021-11-25 18:20:59,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:20:59,808 INFO L470 AbstractCegarLoop]: Abstraction has 916 states and 1286 transitions. [2021-11-25 18:20:59,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:20:59,809 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1286 transitions. [2021-11-25 18:20:59,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-25 18:20:59,810 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:20:59,810 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:20:59,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 18:21:00,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-25 18:21:00,037 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:21:00,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:21:00,037 INFO L85 PathProgramCache]: Analyzing trace with hash 858219485, now seen corresponding path program 1 times [2021-11-25 18:21:00,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:21:00,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080648878] [2021-11-25 18:21:00,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:21:00,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:21:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:21:00,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:21:00,161 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:21:00,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080648878] [2021-11-25 18:21:00,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080648878] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:21:00,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466834164] [2021-11-25 18:21:00,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:21:00,162 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:21:00,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:21:00,163 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:21:00,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 18:21:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:21:00,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 18:21:00,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:21:00,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:21:00,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:21:00,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466834164] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:21:00,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 18:21:00,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-25 18:21:00,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165760569] [2021-11-25 18:21:00,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:21:00,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:21:00,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:21:00,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:21:00,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:21:00,682 INFO L87 Difference]: Start difference. First operand 916 states and 1286 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:21:01,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:21:01,001 INFO L93 Difference]: Finished difference Result 918 states and 1287 transitions. [2021-11-25 18:21:01,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:21:01,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-11-25 18:21:01,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:21:01,009 INFO L225 Difference]: With dead ends: 918 [2021-11-25 18:21:01,009 INFO L226 Difference]: Without dead ends: 915 [2021-11-25 18:21:01,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:21:01,011 INFO L933 BasicCegarLoop]: 669 mSDtfsCounter, 726 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:21:01,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [726 Valid, 669 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 18:21:01,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2021-11-25 18:21:01,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 915. [2021-11-25 18:21:01,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 557 states have (on average 1.341113105924596) internal successors, (747), 581 states have internal predecessors, (747), 270 states have call successors, (270), 88 states have call predecessors, (270), 87 states have return successors, (267), 267 states have call predecessors, (267), 267 states have call successors, (267) [2021-11-25 18:21:01,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1284 transitions. [2021-11-25 18:21:01,073 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1284 transitions. Word has length 29 [2021-11-25 18:21:01,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:21:01,073 INFO L470 AbstractCegarLoop]: Abstraction has 915 states and 1284 transitions. [2021-11-25 18:21:01,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:21:01,073 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1284 transitions. [2021-11-25 18:21:01,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-25 18:21:01,078 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:21:01,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:21:01,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 18:21:01,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:21:01,297 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:21:01,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:21:01,297 INFO L85 PathProgramCache]: Analyzing trace with hash 834625589, now seen corresponding path program 1 times [2021-11-25 18:21:01,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:21:01,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006835217] [2021-11-25 18:21:01,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:21:01,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:21:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:21:01,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:21:01,382 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:21:01,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006835217] [2021-11-25 18:21:01,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006835217] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:21:01,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413344990] [2021-11-25 18:21:01,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:21:01,382 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:21:01,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:21:01,383 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:21:01,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 18:21:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:21:01,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 1050 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 18:21:01,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:21:01,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:21:01,855 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:21:01,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413344990] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:21:01,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 18:21:01,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-25 18:21:01,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025042337] [2021-11-25 18:21:01,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:21:01,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:21:01,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:21:01,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:21:01,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:21:01,857 INFO L87 Difference]: Start difference. First operand 915 states and 1284 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:21:02,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:21:02,368 INFO L93 Difference]: Finished difference Result 1068 states and 1480 transitions. [2021-11-25 18:21:02,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:21:02,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-11-25 18:21:02,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:21:02,377 INFO L225 Difference]: With dead ends: 1068 [2021-11-25 18:21:02,377 INFO L226 Difference]: Without dead ends: 1041 [2021-11-25 18:21:02,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:21:02,384 INFO L933 BasicCegarLoop]: 786 mSDtfsCounter, 668 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:21:02,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [668 Valid, 1043 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 18:21:02,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2021-11-25 18:21:02,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 1041. [2021-11-25 18:21:02,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 620 states have (on average 1.3177419354838709) internal successors, (817), 646 states have internal predecessors, (817), 314 states have call successors, (314), 107 states have call predecessors, (314), 106 states have return successors, (313), 313 states have call predecessors, (313), 313 states have call successors, (313) [2021-11-25 18:21:02,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1444 transitions. [2021-11-25 18:21:02,478 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1444 transitions. Word has length 30 [2021-11-25 18:21:02,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:21:02,479 INFO L470 AbstractCegarLoop]: Abstraction has 1041 states and 1444 transitions. [2021-11-25 18:21:02,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:21:02,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1444 transitions. [2021-11-25 18:21:02,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-25 18:21:02,483 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:21:02,483 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:21:02,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 18:21:02,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:21:02,697 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:21:02,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:21:02,697 INFO L85 PathProgramCache]: Analyzing trace with hash 904140899, now seen corresponding path program 1 times [2021-11-25 18:21:02,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:21:02,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709756767] [2021-11-25 18:21:02,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:21:02,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:21:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:21:02,808 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:21:02,808 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:21:02,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709756767] [2021-11-25 18:21:02,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709756767] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:21:02,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275043943] [2021-11-25 18:21:02,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:21:02,809 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:21:02,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:21:02,810 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:21:02,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 18:21:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:21:03,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 18:21:03,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:21:03,280 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:21:03,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:21:03,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275043943] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:21:03,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 18:21:03,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-25 18:21:03,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369698134] [2021-11-25 18:21:03,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:21:03,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:21:03,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:21:03,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:21:03,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:21:03,282 INFO L87 Difference]: Start difference. First operand 1041 states and 1444 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-25 18:21:03,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:21:03,870 INFO L93 Difference]: Finished difference Result 2078 states and 2884 transitions. [2021-11-25 18:21:03,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:21:03,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2021-11-25 18:21:03,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:21:03,880 INFO L225 Difference]: With dead ends: 2078 [2021-11-25 18:21:03,880 INFO L226 Difference]: Without dead ends: 1047 [2021-11-25 18:21:03,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:21:03,886 INFO L933 BasicCegarLoop]: 643 mSDtfsCounter, 4 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:21:03,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 1280 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 18:21:03,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2021-11-25 18:21:03,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1043. [2021-11-25 18:21:03,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 622 states have (on average 1.3167202572347267) internal successors, (819), 648 states have internal predecessors, (819), 314 states have call successors, (314), 107 states have call predecessors, (314), 106 states have return successors, (313), 313 states have call predecessors, (313), 313 states have call successors, (313) [2021-11-25 18:21:03,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1446 transitions. [2021-11-25 18:21:03,956 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1446 transitions. Word has length 50 [2021-11-25 18:21:03,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:21:03,957 INFO L470 AbstractCegarLoop]: Abstraction has 1043 states and 1446 transitions. [2021-11-25 18:21:03,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-25 18:21:03,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1446 transitions. [2021-11-25 18:21:03,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-25 18:21:03,959 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:21:03,959 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:21:03,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 18:21:04,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:21:04,173 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:21:04,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:21:04,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1551679401, now seen corresponding path program 1 times [2021-11-25 18:21:04,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:21:04,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600428552] [2021-11-25 18:21:04,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:21:04,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:21:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:21:04,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:21:04,344 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:21:04,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600428552] [2021-11-25 18:21:04,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600428552] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:21:04,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425178739] [2021-11-25 18:21:04,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:21:04,346 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:21:04,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:21:04,347 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:21:04,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 18:21:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:21:04,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 1250 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 18:21:04,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:21:04,894 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:21:04,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:21:05,072 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:21:05,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425178739] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:21:05,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2072925696] [2021-11-25 18:21:05,095 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2021-11-25 18:21:05,095 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:21:05,100 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:21:05,106 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:21:05,106 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:21:06,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 24 select indices, 24 select index equivalence classes, 325 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 0 case distinctions, treesize of input 892 treesize of output 777 [2021-11-25 18:21:06,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-25 18:21:07,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 110 [2021-11-25 18:21:07,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-25 18:21:07,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 114 [2021-11-25 18:21:11,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:11,282 INFO L244 Elim1Store]: Index analysis took 132 ms [2021-11-25 18:21:13,706 INFO L354 Elim1Store]: treesize reduction 640, result has 47.4 percent of original size [2021-11-25 18:21:13,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 65 select indices, 65 select index equivalence classes, 2082 disjoint index pairs (out of 2080 index pairs), introduced 65 new quantified variables, introduced 64 case distinctions, treesize of input 332 treesize of output 782 [2021-11-25 18:21:14,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:14,441 INFO L244 Elim1Store]: Index analysis took 245 ms [2021-11-25 18:21:18,090 INFO L354 Elim1Store]: treesize reduction 1152, result has 33.4 percent of original size [2021-11-25 18:21:18,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 67 select indices, 67 select index equivalence classes, 2147 disjoint index pairs (out of 2211 index pairs), introduced 67 new quantified variables, introduced 128 case distinctions, treesize of input 342 treesize of output 793 [2021-11-25 18:21:18,595 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 64 [2021-11-25 18:21:18,617 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 64 [2021-11-25 18:21:18,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:18,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2021-11-25 18:21:18,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:18,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:18,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:18,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2021-11-25 18:21:19,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2021-11-25 18:21:19,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 44 [2021-11-25 18:21:19,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,259 INFO L354 Elim1Store]: treesize reduction 125, result has 9.4 percent of original size [2021-11-25 18:21:19,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 69 [2021-11-25 18:21:19,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2021-11-25 18:21:19,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 49 [2021-11-25 18:21:19,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 78 [2021-11-25 18:21:19,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 28 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 117 [2021-11-25 18:21:19,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:19,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 101 [2021-11-25 18:21:20,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 114 treesize of output 104 [2021-11-25 18:21:20,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 114 treesize of output 104 [2021-11-25 18:21:20,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 114 treesize of output 104 [2021-11-25 18:21:20,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 113 [2021-11-25 18:21:20,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:20,496 INFO L244 Elim1Store]: Index analysis took 114 ms [2021-11-25 18:21:21,945 INFO L354 Elim1Store]: treesize reduction 1487, result has 11.1 percent of original size [2021-11-25 18:21:21,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 57 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 275 treesize of output 402 [2021-11-25 18:21:21,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:21,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:21,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:21,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:21,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:21,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:21,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:21,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:22,425 INFO L354 Elim1Store]: treesize reduction 1042, result has 11.2 percent of original size [2021-11-25 18:21:22,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 46 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 32 case distinctions, treesize of input 395 treesize of output 513 [2021-11-25 18:21:24,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2021-11-25 18:21:24,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2021-11-25 18:21:24,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2021-11-25 18:21:24,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 44 [2021-11-25 18:21:24,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:24,910 INFO L354 Elim1Store]: treesize reduction 125, result has 9.4 percent of original size [2021-11-25 18:21:24,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 69 [2021-11-25 18:21:24,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:25,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2021-11-25 18:21:25,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:25,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:25,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:25,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:25,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:25,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:25,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:25,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:25,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:25,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:25,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:25,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:25,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:25,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:25,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:25,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 49 [2021-11-25 18:21:28,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:28,943 INFO L244 Elim1Store]: Index analysis took 119 ms [2021-11-25 18:21:31,178 INFO L354 Elim1Store]: treesize reduction 640, result has 47.4 percent of original size [2021-11-25 18:21:31,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 65 select indices, 65 select index equivalence classes, 2082 disjoint index pairs (out of 2080 index pairs), introduced 65 new quantified variables, introduced 64 case distinctions, treesize of input 332 treesize of output 782 [2021-11-25 18:21:31,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:31,879 INFO L244 Elim1Store]: Index analysis took 152 ms [2021-11-25 18:21:35,412 INFO L354 Elim1Store]: treesize reduction 1152, result has 33.4 percent of original size [2021-11-25 18:21:35,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 67 select indices, 67 select index equivalence classes, 2147 disjoint index pairs (out of 2211 index pairs), introduced 67 new quantified variables, introduced 128 case distinctions, treesize of input 342 treesize of output 793 [2021-11-25 18:21:35,712 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 64 [2021-11-25 18:21:35,737 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 64 [2021-11-25 18:21:35,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:35,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:35,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:35,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:35,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:35,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:35,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:35,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:35,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:35,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:35,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:35,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:35,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:35,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:35,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:35,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 44 [2021-11-25 18:21:36,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,081 INFO L354 Elim1Store]: treesize reduction 125, result has 9.4 percent of original size [2021-11-25 18:21:36,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 69 [2021-11-25 18:21:36,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2021-11-25 18:21:36,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2021-11-25 18:21:36,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2021-11-25 18:21:36,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2021-11-25 18:21:36,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 49 [2021-11-25 18:21:36,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 34 [2021-11-25 18:21:36,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2021-11-25 18:21:36,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:36,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 15 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 55 [2021-11-25 18:21:37,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,851 INFO L354 Elim1Store]: treesize reduction 999, result has 12.4 percent of original size [2021-11-25 18:21:37,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 57 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 157 treesize of output 248 [2021-11-25 18:21:37,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:37,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,239 INFO L354 Elim1Store]: treesize reduction 624, result has 14.8 percent of original size [2021-11-25 18:21:38,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 46 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 32 case distinctions, treesize of input 241 treesize of output 343 [2021-11-25 18:21:38,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 34 [2021-11-25 18:21:38,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:38,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 28 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 73 [2021-11-25 18:21:39,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:39,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2021-11-25 18:21:39,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:39,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:39,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:39,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:39,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:39,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:39,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:39,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:39,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:39,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:39,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:39,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:39,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:39,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:39,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:39,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 49 [2021-11-25 18:21:39,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2021-11-25 18:21:40,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2021-11-25 18:21:40,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2021-11-25 18:21:40,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 44 [2021-11-25 18:21:40,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:40,308 INFO L354 Elim1Store]: treesize reduction 125, result has 9.4 percent of original size [2021-11-25 18:21:40,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 69 [2021-11-25 18:21:41,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2021-11-25 18:21:41,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 49 [2021-11-25 18:21:41,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2021-11-25 18:21:41,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2021-11-25 18:21:41,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2021-11-25 18:21:41,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 44 [2021-11-25 18:21:41,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:41,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:42,020 INFO L354 Elim1Store]: treesize reduction 125, result has 9.4 percent of original size [2021-11-25 18:21:42,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 69 [2021-11-25 18:21:42,032 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 64 [2021-11-25 18:21:42,434 INFO L197 IcfgInterpreter]: Interpreting procedure pi_init with input of size 215 for LOIs [2021-11-25 18:21:42,478 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:21:48,767 WARN L227 SmtUtils]: Spent 6.23s on a formula simplification that was a NOOP. DAG size: 1029 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:21:55,425 WARN L227 SmtUtils]: Spent 6.53s on a formula simplification that was a NOOP. DAG size: 1042 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:22:02,124 WARN L227 SmtUtils]: Spent 6.56s on a formula simplification that was a NOOP. DAG size: 1044 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:22:08,692 WARN L227 SmtUtils]: Spent 6.42s on a formula simplification that was a NOOP. DAG size: 1032 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:22:15,611 WARN L227 SmtUtils]: Spent 6.75s on a formula simplification that was a NOOP. DAG size: 1045 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:22:22,909 WARN L227 SmtUtils]: Spent 7.09s on a formula simplification that was a NOOP. DAG size: 1047 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:22:30,871 WARN L227 SmtUtils]: Spent 7.68s on a formula simplification that was a NOOP. DAG size: 1035 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:22:56,432 WARN L227 SmtUtils]: Spent 7.01s on a formula simplification that was a NOOP. DAG size: 1032 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:22:56,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [2072925696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:22:56,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:22:56,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [4, 4, 4] total 27 [2021-11-25 18:22:56,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27228248] [2021-11-25 18:22:56,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:22:56,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-25 18:22:56,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:22:56,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-25 18:22:56,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=596, Unknown=0, NotChecked=0, Total=702 [2021-11-25 18:22:56,438 INFO L87 Difference]: Start difference. First operand 1043 states and 1446 transitions. Second operand has 22 states, 20 states have (on average 2.1) internal successors, (42), 19 states have internal predecessors, (42), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-25 18:23:15,921 WARN L227 SmtUtils]: Spent 18.32s on a formula simplification. DAG size of input: 1149 DAG size of output: 1063 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:23:35,421 WARN L227 SmtUtils]: Spent 19.30s on a formula simplification. DAG size of input: 1159 DAG size of output: 1074 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:24:00,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:02,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:04,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:06,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:09,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:11,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:14,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:24:14,992 INFO L93 Difference]: Finished difference Result 2124 states and 2948 transitions. [2021-11-25 18:24:14,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-25 18:24:14,995 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 2.1) internal successors, (42), 19 states have internal predecessors, (42), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 53 [2021-11-25 18:24:14,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:24:15,004 INFO L225 Difference]: With dead ends: 2124 [2021-11-25 18:24:15,005 INFO L226 Difference]: Without dead ends: 1091 [2021-11-25 18:24:15,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 120.9s TimeCoverageRelationStatistics Valid=178, Invalid=1012, Unknown=0, NotChecked=0, Total=1190 [2021-11-25 18:24:15,012 INFO L933 BasicCegarLoop]: 632 mSDtfsCounter, 73 mSDsluCounter, 3674 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 27 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 4022 SdHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:24:15,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 4022 Invalid, 1238 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 1207 Invalid, 4 Unknown, 0 Unchecked, 31.4s Time] [2021-11-25 18:24:15,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2021-11-25 18:24:15,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 1056. [2021-11-25 18:24:15,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 633 states have (on average 1.315955766192733) internal successors, (833), 659 states have internal predecessors, (833), 315 states have call successors, (315), 108 states have call predecessors, (315), 107 states have return successors, (314), 314 states have call predecessors, (314), 314 states have call successors, (314) [2021-11-25 18:24:15,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1462 transitions. [2021-11-25 18:24:15,109 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1462 transitions. Word has length 53 [2021-11-25 18:24:15,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:24:15,109 INFO L470 AbstractCegarLoop]: Abstraction has 1056 states and 1462 transitions. [2021-11-25 18:24:15,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 2.1) internal successors, (42), 19 states have internal predecessors, (42), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-25 18:24:15,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1462 transitions. [2021-11-25 18:24:15,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-25 18:24:15,112 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:24:15,112 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:24:15,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-25 18:24:15,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-25 18:24:15,325 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:24:15,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:24:15,326 INFO L85 PathProgramCache]: Analyzing trace with hash -517728939, now seen corresponding path program 1 times [2021-11-25 18:24:15,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:24:15,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189333400] [2021-11-25 18:24:15,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:24:15,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:24:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:24:15,483 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:24:15,483 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:24:15,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189333400] [2021-11-25 18:24:15,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189333400] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:24:15,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432628663] [2021-11-25 18:24:15,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:24:15,485 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:24:15,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:24:15,486 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:24:15,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d7a7c6-15eb-4a00-94a0-356d5fdad8de/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 18:24:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:24:15,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 18:24:15,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:24:16,069 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:24:16,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:24:16,231 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:24:16,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432628663] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:24:16,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2048947948] [2021-11-25 18:24:16,235 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2021-11-25 18:24:16,235 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:24:16,236 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:24:16,236 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:24:16,236 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:24:16,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 24 select indices, 24 select index equivalence classes, 325 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 0 case distinctions, treesize of input 892 treesize of output 777 [2021-11-25 18:24:17,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 114 [2021-11-25 18:24:17,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-25 18:24:17,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-25 18:24:17,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 110 [2021-11-25 18:24:20,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:20,656 INFO L244 Elim1Store]: Index analysis took 113 ms [2021-11-25 18:24:23,327 INFO L354 Elim1Store]: treesize reduction 640, result has 47.4 percent of original size [2021-11-25 18:24:23,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 65 select indices, 65 select index equivalence classes, 2082 disjoint index pairs (out of 2080 index pairs), introduced 65 new quantified variables, introduced 64 case distinctions, treesize of input 332 treesize of output 782 [2021-11-25 18:24:23,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:23,932 INFO L244 Elim1Store]: Index analysis took 190 ms [2021-11-25 18:24:28,011 INFO L354 Elim1Store]: treesize reduction 1152, result has 33.4 percent of original size [2021-11-25 18:24:28,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 67 select indices, 67 select index equivalence classes, 2147 disjoint index pairs (out of 2211 index pairs), introduced 67 new quantified variables, introduced 128 case distinctions, treesize of input 342 treesize of output 793 [2021-11-25 18:24:28,395 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 64 [2021-11-25 18:24:28,409 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 64 [2021-11-25 18:24:28,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2021-11-25 18:24:28,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 49 [2021-11-25 18:24:28,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2021-11-25 18:24:28,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2021-11-25 18:24:28,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2021-11-25 18:24:28,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:28,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:29,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 44 [2021-11-25 18:24:29,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:29,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:29,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:29,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:29,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:29,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:29,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:29,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:29,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:29,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:29,087 INFO L354 Elim1Store]: treesize reduction 125, result has 9.4 percent of original size [2021-11-25 18:24:29,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 69 [2021-11-25 18:24:29,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:29,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:29,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:29,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:29,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:29,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:29,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 34 [2021-11-25 18:24:30,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 28 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 73 [2021-11-25 18:24:30,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:30,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,363 INFO L354 Elim1Store]: treesize reduction 960, result has 15.9 percent of original size [2021-11-25 18:24:31,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 57 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 158 treesize of output 288 [2021-11-25 18:24:31,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:31,820 INFO L354 Elim1Store]: treesize reduction 624, result has 14.8 percent of original size [2021-11-25 18:24:31,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 46 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 32 case distinctions, treesize of input 280 treesize of output 382 [2021-11-25 18:24:32,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 34 [2021-11-25 18:24:32,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2021-11-25 18:24:32,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:32,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 15 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 55 [2021-11-25 18:24:35,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:24:36,323 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:24:36,324 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:24:36,324 INFO L244 Elim1Store]: Index analysis took 661 ms [2021-11-25 18:25:43,160 WARN L227 SmtUtils]: Spent 1.10m on a formula simplification. DAG size of input: 176 DAG size of output: 128 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:25:43,161 INFO L354 Elim1Store]: treesize reduction 290, result has 58.0 percent of original size [2021-11-25 18:25:43,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 214 treesize of output 540 [2021-11-25 18:25:43,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:25:43,502 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:25:44,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:25:44,458 INFO L244 Elim1Store]: Index analysis took 1066 ms [2021-11-25 18:25:51,650 WARN L227 SmtUtils]: Spent 5.65s on a formula simplification. DAG size of input: 39 DAG size of output: 24 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:25:51,650 INFO L354 Elim1Store]: treesize reduction 92, result has 29.8 percent of original size [2021-11-25 18:25:51,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 176 treesize of output 176 [2021-11-25 18:25:52,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:25:52,381 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:25:53,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:25:53,559 INFO L244 Elim1Store]: Index analysis took 1337 ms [2021-11-25 18:26:01,192 WARN L227 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 40 DAG size of output: 24 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:26:01,193 INFO L354 Elim1Store]: treesize reduction 92, result has 29.8 percent of original size [2021-11-25 18:26:01,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 164 treesize of output 164 [2021-11-25 18:26:01,614 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:01,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:02,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:02,692 INFO L244 Elim1Store]: Index analysis took 1078 ms [2021-11-25 18:26:07,157 INFO L354 Elim1Store]: treesize reduction 76, result has 29.0 percent of original size [2021-11-25 18:26:07,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 67 treesize of output 69 [2021-11-25 18:26:07,480 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:07,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:08,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:08,507 INFO L244 Elim1Store]: Index analysis took 1026 ms [2021-11-25 18:26:13,251 INFO L354 Elim1Store]: treesize reduction 76, result has 29.0 percent of original size [2021-11-25 18:26:13,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 61 [2021-11-25 18:26:13,685 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:13,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:14,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:14,708 INFO L244 Elim1Store]: Index analysis took 1023 ms [2021-11-25 18:26:18,977 INFO L354 Elim1Store]: treesize reduction 76, result has 29.0 percent of original size [2021-11-25 18:26:18,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 61 [2021-11-25 18:26:19,256 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:19,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:20,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:20,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:20,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:20,775 INFO L244 Elim1Store]: Index analysis took 1519 ms [2021-11-25 18:26:25,674 INFO L354 Elim1Store]: treesize reduction 132, result has 22.8 percent of original size [2021-11-25 18:26:25,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 64 treesize of output 78 [2021-11-25 18:26:25,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:26,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:26,192 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:26,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:26,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:26,413 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:27,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:27,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:28,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:29,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:29,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:29,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:29,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:29,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:29,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:29,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:29,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:29,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:29,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:29,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:30,110 INFO L244 Elim1Store]: Index analysis took 4268 ms [2021-11-25 18:26:58,933 WARN L227 SmtUtils]: Spent 22.63s on a formula simplification. DAG size of input: 267 DAG size of output: 110 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:26:58,934 INFO L354 Elim1Store]: treesize reduction 1820, result has 16.8 percent of original size [2021-11-25 18:26:58,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 21 case distinctions, treesize of input 192 treesize of output 489 [2021-11-25 18:26:59,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:59,462 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:59,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:59,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:59,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:59,791 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:27:00,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:00,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:00,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:00,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:00,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:00,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:00,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:00,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:01,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:01,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:01,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:01,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:01,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:01,953 INFO L244 Elim1Store]: Index analysis took 2890 ms [2021-11-25 18:27:21,687 WARN L227 SmtUtils]: Spent 16.49s on a formula simplification. DAG size of input: 338 DAG size of output: 108 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:27:21,688 INFO L354 Elim1Store]: treesize reduction 974, result has 23.1 percent of original size [2021-11-25 18:27:21,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 17 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 61 case distinctions, treesize of input 425 treesize of output 661 [2021-11-25 18:27:21,896 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:27:21,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:21,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:21,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:21,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:22,830 INFO L354 Elim1Store]: treesize reduction 130, result has 24.0 percent of original size [2021-11-25 18:27:22,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 72 treesize of output 88 [2021-11-25 18:27:23,009 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:27:23,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:23,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:23,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:23,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:23,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:23,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:23,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:23,282 INFO L354 Elim1Store]: treesize reduction 200, result has 19.7 percent of original size [2021-11-25 18:27:23,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 79 treesize of output 107 [2021-11-25 18:33:15,526 WARN L227 SmtUtils]: Spent 8.03s on a formula simplification. DAG size of input: 2216 DAG size of output: 2216 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)