./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/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_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 096e364e485b0e5279ae2fe39d9edab416c1da593e20bd1edd3d0a079c23fdc3 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 17:51:43,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 17:51:43,109 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 17:51:43,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 17:51:43,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 17:51:43,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 17:51:43,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 17:51:43,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 17:51:43,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 17:51:43,190 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 17:51:43,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 17:51:43,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 17:51:43,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 17:51:43,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 17:51:43,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 17:51:43,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 17:51:43,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 17:51:43,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 17:51:43,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 17:51:43,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 17:51:43,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 17:51:43,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 17:51:43,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 17:51:43,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 17:51:43,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 17:51:43,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 17:51:43,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 17:51:43,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 17:51:43,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 17:51:43,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 17:51:43,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 17:51:43,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 17:51:43,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 17:51:43,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 17:51:43,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 17:51:43,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 17:51:43,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 17:51:43,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 17:51:43,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 17:51:43,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 17:51:43,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 17:51:43,248 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 17:51:43,295 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 17:51:43,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 17:51:43,296 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 17:51:43,297 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 17:51:43,298 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 17:51:43,298 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 17:51:43,298 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 17:51:43,298 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 17:51:43,298 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 17:51:43,299 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 17:51:43,300 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 17:51:43,300 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 17:51:43,300 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 17:51:43,301 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 17:51:43,301 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 17:51:43,301 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 17:51:43,301 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 17:51:43,302 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 17:51:43,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 17:51:43,303 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 17:51:43,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 17:51:43,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 17:51:43,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 17:51:43,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 17:51:43,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 17:51:43,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 17:51:43,306 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 17:51:43,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 17:51:43,307 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 17:51:43,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 17:51:43,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 17:51:43,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 17:51:43,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:51:43,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 17:51:43,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 17:51:43,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 17:51:43,309 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 17:51:43,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 17:51:43,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 17:51:43,309 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 17:51:43,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 17:51:43,310 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_22cc8e79-4299-4944-97a2-ba8610999cc0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 096e364e485b0e5279ae2fe39d9edab416c1da593e20bd1edd3d0a079c23fdc3 [2021-11-25 17:51:43,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 17:51:43,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 17:51:43,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 17:51:43,671 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 17:51:43,672 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 17:51:43,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i [2021-11-25 17:51:43,736 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/data/e804864ba/87eca96c31c84c3aac42912c901e0d94/FLAG432af074a [2021-11-25 17:51:44,424 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 17:51:44,425 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i [2021-11-25 17:51:44,463 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/data/e804864ba/87eca96c31c84c3aac42912c901e0d94/FLAG432af074a [2021-11-25 17:51:44,638 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/data/e804864ba/87eca96c31c84c3aac42912c901e0d94 [2021-11-25 17:51:44,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 17:51:44,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 17:51:44,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 17:51:44,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 17:51:44,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 17:51:44,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:51:44" (1/1) ... [2021-11-25 17:51:44,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@206b6fc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:44, skipping insertion in model container [2021-11-25 17:51:44,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:51:44" (1/1) ... [2021-11-25 17:51:44,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 17:51:44,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 17:51:45,080 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_22cc8e79-4299-4944-97a2-ba8610999cc0/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i[33021,33034] [2021-11-25 17:51:45,226 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_22cc8e79-4299-4944-97a2-ba8610999cc0/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i[44590,44603] [2021-11-25 17:51:45,248 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:51:45,261 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 17:51:45,292 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_22cc8e79-4299-4944-97a2-ba8610999cc0/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i[33021,33034] [2021-11-25 17:51:45,354 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_22cc8e79-4299-4944-97a2-ba8610999cc0/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i[44590,44603] [2021-11-25 17:51:45,384 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:51:45,427 INFO L208 MainTranslator]: Completed translation [2021-11-25 17:51:45,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:45 WrapperNode [2021-11-25 17:51:45,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 17:51:45,428 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 17:51:45,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 17:51:45,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 17:51:45,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:45" (1/1) ... [2021-11-25 17:51:45,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:45" (1/1) ... [2021-11-25 17:51:45,584 INFO L137 Inliner]: procedures = 177, calls = 336, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1181 [2021-11-25 17:51:45,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 17:51:45,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 17:51:45,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 17:51:45,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 17:51:45,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:45" (1/1) ... [2021-11-25 17:51:45,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:45" (1/1) ... [2021-11-25 17:51:45,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:45" (1/1) ... [2021-11-25 17:51:45,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:45" (1/1) ... [2021-11-25 17:51:45,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:45" (1/1) ... [2021-11-25 17:51:45,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:45" (1/1) ... [2021-11-25 17:51:45,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:45" (1/1) ... [2021-11-25 17:51:45,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 17:51:45,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 17:51:45,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 17:51:45,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 17:51:45,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:45" (1/1) ... [2021-11-25 17:51:45,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:51:45,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:51:45,724 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 17:51:45,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 17:51:45,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 17:51:45,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 17:51:45,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 17:51:45,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 17:51:45,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 17:51:45,769 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 17:51:45,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 17:51:45,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 17:51:45,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 17:51:45,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 17:51:45,770 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 17:51:45,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 17:51:45,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 17:51:45,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 17:51:45,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 17:51:45,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 17:51:46,047 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 17:51:46,049 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 17:51:47,232 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 17:51:47,597 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 17:51:47,597 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-25 17:51:47,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:51:47 BoogieIcfgContainer [2021-11-25 17:51:47,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 17:51:47,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 17:51:47,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 17:51:47,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 17:51:47,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:51:44" (1/3) ... [2021-11-25 17:51:47,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1ec9ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:51:47, skipping insertion in model container [2021-11-25 17:51:47,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:51:45" (2/3) ... [2021-11-25 17:51:47,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1ec9ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:51:47, skipping insertion in model container [2021-11-25 17:51:47,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:51:47" (3/3) ... [2021-11-25 17:51:47,609 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test3-2.i [2021-11-25 17:51:47,614 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 17:51:47,615 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 17:51:47,680 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 17:51:47,686 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 17:51:47,687 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 17:51:47,708 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 124 states have (on average 1.7983870967741935) internal successors, (223), 131 states have internal predecessors, (223), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 17:51:47,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 17:51:47,713 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:47,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:51:47,714 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:51:47,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:47,719 INFO L85 PathProgramCache]: Analyzing trace with hash 2145808350, now seen corresponding path program 1 times [2021-11-25 17:51:47,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:47,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520517709] [2021-11-25 17:51:47,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:47,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:47,908 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 17:51:47,908 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:47,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520517709] [2021-11-25 17:51:47,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520517709] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:47,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:47,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 17:51:47,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116793260] [2021-11-25 17:51:47,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:47,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 17:51:47,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:47,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 17:51:47,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 17:51:47,957 INFO L87 Difference]: Start difference. First operand has 137 states, 124 states have (on average 1.7983870967741935) internal successors, (223), 131 states have internal predecessors, (223), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:51:48,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:48,450 INFO L93 Difference]: Finished difference Result 273 states and 482 transitions. [2021-11-25 17:51:48,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 17:51:48,456 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-25 17:51:48,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:48,467 INFO L225 Difference]: With dead ends: 273 [2021-11-25 17:51:48,467 INFO L226 Difference]: Without dead ends: 122 [2021-11-25 17:51:48,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 17:51:48,475 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:48,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 17:51:48,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-25 17:51:48,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-25 17:51:48,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 116 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 17:51:48,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2021-11-25 17:51:48,522 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 8 [2021-11-25 17:51:48,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:48,522 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2021-11-25 17:51:48,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:51:48,523 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2021-11-25 17:51:48,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 17:51:48,524 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:48,524 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:51:48,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 17:51:48,525 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:51:48,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:48,526 INFO L85 PathProgramCache]: Analyzing trace with hash 131240621, now seen corresponding path program 1 times [2021-11-25 17:51:48,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:48,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516335241] [2021-11-25 17:51:48,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:48,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:48,596 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 17:51:48,596 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:48,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516335241] [2021-11-25 17:51:48,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516335241] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:48,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:48,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:51:48,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343916276] [2021-11-25 17:51:48,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:48,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:51:48,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:48,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:51:48,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:51:48,600 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 17:51:50,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:50,257 INFO L93 Difference]: Finished difference Result 258 states and 326 transitions. [2021-11-25 17:51:50,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:51:50,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 13 [2021-11-25 17:51:50,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:50,268 INFO L225 Difference]: With dead ends: 258 [2021-11-25 17:51:50,268 INFO L226 Difference]: Without dead ends: 189 [2021-11-25 17:51:50,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:51:50,271 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 73 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:50,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 359 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-25 17:51:50,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-25 17:51:50,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 124. [2021-11-25 17:51:50,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 118 states have internal predecessors, (136), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 17:51:50,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2021-11-25 17:51:50,291 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 13 [2021-11-25 17:51:50,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:50,291 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2021-11-25 17:51:50,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 17:51:50,292 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2021-11-25 17:51:50,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-25 17:51:50,293 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:50,294 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] [2021-11-25 17:51:50,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 17:51:50,294 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:51:50,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:50,295 INFO L85 PathProgramCache]: Analyzing trace with hash 993801336, now seen corresponding path program 1 times [2021-11-25 17:51:50,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:50,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938414817] [2021-11-25 17:51:50,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:50,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:50,459 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:51:50,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1755262844] [2021-11-25 17:51:50,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:50,460 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:51:50,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:51:50,462 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:51:50,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 17:51:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:51,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 1624 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 17:51:51,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:51:51,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:51:51,386 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:51:51,386 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:51,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938414817] [2021-11-25 17:51:51,387 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:51:51,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755262844] [2021-11-25 17:51:51,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755262844] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:51,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:51,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 17:51:51,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015887512] [2021-11-25 17:51:51,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:51,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:51:51,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:51,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:51:51,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:51:51,395 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 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 17:51:52,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:52,085 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2021-11-25 17:51:52,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:51:52,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 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 37 [2021-11-25 17:51:52,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:52,094 INFO L225 Difference]: With dead ends: 304 [2021-11-25 17:51:52,094 INFO L226 Difference]: Without dead ends: 183 [2021-11-25 17:51:52,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 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 17:51:52,097 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:52,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 280 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 17:51:52,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-25 17:51:52,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2021-11-25 17:51:52,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 155 states have (on average 1.1935483870967742) internal successors, (185), 161 states have internal predecessors, (185), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 17:51:52,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2021-11-25 17:51:52,117 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 37 [2021-11-25 17:51:52,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:52,117 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2021-11-25 17:51:52,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 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 17:51:52,118 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2021-11-25 17:51:52,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-25 17:51:52,145 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:52,146 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 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] [2021-11-25 17:51:52,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-25 17:51:52,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:51:52,347 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:51:52,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:52,347 INFO L85 PathProgramCache]: Analyzing trace with hash 237821332, now seen corresponding path program 1 times [2021-11-25 17:51:52,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:52,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676301136] [2021-11-25 17:51:52,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:52,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:52,427 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:51:52,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1933103732] [2021-11-25 17:51:52,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:52,431 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:51:52,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:51:52,436 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:51:52,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 17:51:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:52,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 17:51:52,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:51:53,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 17:51:53,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 17:51:53,094 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 17:51:53,094 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:51:53,099 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:53,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676301136] [2021-11-25 17:51:53,100 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:51:53,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933103732] [2021-11-25 17:51:53,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933103732] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:53,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:53,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:51:53,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063257497] [2021-11-25 17:51:53,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:53,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:51:53,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:53,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:51:53,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:51:53,103 INFO L87 Difference]: Start difference. First operand 167 states and 201 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 17:51:54,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:54,525 INFO L93 Difference]: Finished difference Result 231 states and 285 transitions. [2021-11-25 17:51:54,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:51:54,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2021-11-25 17:51:54,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:54,531 INFO L225 Difference]: With dead ends: 231 [2021-11-25 17:51:54,532 INFO L226 Difference]: Without dead ends: 212 [2021-11-25 17:51:54,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:51:54,533 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 46 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:54,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 358 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 17:51:54,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-11-25 17:51:54,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 169. [2021-11-25 17:51:54,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 157 states have (on average 1.1910828025477707) internal successors, (187), 163 states have internal predecessors, (187), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 17:51:54,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2021-11-25 17:51:54,549 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 50 [2021-11-25 17:51:54,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:54,550 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2021-11-25 17:51:54,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 17:51:54,550 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2021-11-25 17:51:54,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-25 17:51:54,553 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:54,553 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 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 17:51:54,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-25 17:51:54,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:51:54,769 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:51:54,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:54,769 INFO L85 PathProgramCache]: Analyzing trace with hash 375836451, now seen corresponding path program 1 times [2021-11-25 17:51:54,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:54,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892999848] [2021-11-25 17:51:54,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:54,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:54,817 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:51:54,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1716601736] [2021-11-25 17:51:54,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:54,818 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:51:54,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:51:54,824 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:51:54,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 17:51:55,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:55,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 17:51:55,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:51:55,430 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 17:51:55,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:51:55,430 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:55,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892999848] [2021-11-25 17:51:55,430 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:51:55,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716601736] [2021-11-25 17:51:55,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716601736] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:55,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:55,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:51:55,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583318537] [2021-11-25 17:51:55,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:55,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:51:55,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:55,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:51:55,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:51:55,433 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 17:51:56,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:56,332 INFO L93 Difference]: Finished difference Result 395 states and 492 transitions. [2021-11-25 17:51:56,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 17:51:56,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-11-25 17:51:56,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:56,334 INFO L225 Difference]: With dead ends: 395 [2021-11-25 17:51:56,335 INFO L226 Difference]: Without dead ends: 242 [2021-11-25 17:51:56,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:51:56,337 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 257 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:56,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 296 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 17:51:56,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-11-25 17:51:56,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 214. [2021-11-25 17:51:56,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 202 states have (on average 1.193069306930693) internal successors, (241), 208 states have internal predecessors, (241), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 17:51:56,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2021-11-25 17:51:56,373 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 57 [2021-11-25 17:51:56,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:56,374 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2021-11-25 17:51:56,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 17:51:56,374 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2021-11-25 17:51:56,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-25 17:51:56,379 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:56,380 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:51:56,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-25 17:51:56,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:51:56,605 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:51:56,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:56,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1459918940, now seen corresponding path program 1 times [2021-11-25 17:51:56,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:56,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037641305] [2021-11-25 17:51:56,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:56,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:56,654 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:51:56,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [741962080] [2021-11-25 17:51:56,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:56,655 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:51:56,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:51:56,656 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:51:56,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 17:51:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:59,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 17:51:59,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:51:59,744 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:51:59,744 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:51:59,746 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:59,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037641305] [2021-11-25 17:51:59,746 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:51:59,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741962080] [2021-11-25 17:51:59,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741962080] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:59,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:59,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:51:59,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707518981] [2021-11-25 17:51:59,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:59,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:51:59,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:59,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:51:59,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:51:59,749 INFO L87 Difference]: Start difference. First operand 214 states and 257 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 17:52:00,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:52:00,483 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2021-11-25 17:52:00,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:52:00,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2021-11-25 17:52:00,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:52:00,491 INFO L225 Difference]: With dead ends: 411 [2021-11-25 17:52:00,491 INFO L226 Difference]: Without dead ends: 216 [2021-11-25 17:52:00,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:52:00,493 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 17:52:00,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 389 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 17:52:00,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-25 17:52:00,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-11-25 17:52:00,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 203 states have (on average 1.1970443349753694) internal successors, (243), 210 states have internal predecessors, (243), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2021-11-25 17:52:00,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 260 transitions. [2021-11-25 17:52:00,510 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 260 transitions. Word has length 64 [2021-11-25 17:52:00,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:52:00,510 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 260 transitions. [2021-11-25 17:52:00,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 17:52:00,511 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 260 transitions. [2021-11-25 17:52:00,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-25 17:52:00,514 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:52:00,514 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:52:00,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 17:52:00,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-25 17:52:00,728 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:52:00,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:52:00,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1243076896, now seen corresponding path program 1 times [2021-11-25 17:52:00,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:52:00,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444113634] [2021-11-25 17:52:00,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:52:00,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:52:00,785 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:52:00,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [660187401] [2021-11-25 17:52:00,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:52:00,786 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:52:00,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:52:00,787 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:52:00,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22cc8e79-4299-4944-97a2-ba8610999cc0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 17:52:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:52:01,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 840 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 17:52:01,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:52:02,114 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 17:52:02,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 17:52:02,366 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 17:52:02,367 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:52:02,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444113634] [2021-11-25 17:52:02,367 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:52:02,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660187401] [2021-11-25 17:52:02,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660187401] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 17:52:02,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [578882417] [2021-11-25 17:52:02,392 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-25 17:52:02,392 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 17:52:02,397 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 17:52:02,402 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 17:52:02,403 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 17:52:02,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:02,558 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 17:52:02,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2021-11-25 17:52:02,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:02,590 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 17:52:02,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2021-11-25 17:52:02,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:02,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 17:52:02,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 17:52:02,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 17:52:02,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:02,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:02,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:02,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:02,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:02,703 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 17:52:02,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2021-11-25 17:52:02,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:02,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 17:52:02,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:02,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:02,778 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-25 17:52:02,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2021-11-25 17:52:02,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:02,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 17:52:02,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:02,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:02,865 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 17:52:02,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-25 17:52:03,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2021-11-25 17:52:03,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 76 [2021-11-25 17:52:03,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 17:52:03,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 29 treesize of output 19 [2021-11-25 17:52:03,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,408 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 28 treesize of output 31 [2021-11-25 17:52:03,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,451 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 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-25 17:52:03,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,485 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 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-25 17:52:03,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,512 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 28 treesize of output 31 [2021-11-25 17:52:03,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 17:52:03,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,594 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 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-25 17:52:03,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,636 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 41 treesize of output 46 [2021-11-25 17:52:03,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,726 INFO L354 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2021-11-25 17:52:03,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2021-11-25 17:52:03,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:03,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2021-11-25 17:52:03,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 17:52:03,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 17:52:03,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 17:52:03,945 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 17:52:03,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 60 [2021-11-25 17:52:03,976 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 17:52:03,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2021-11-25 17:52:04,007 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 17:52:04,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 50 [2021-11-25 17:52:04,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 17:52:04,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 17:52:04,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 17:52:04,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-25 17:52:04,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-25 17:52:04,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-25 17:52:04,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-25 17:52:04,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-25 17:52:04,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:04,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-25 17:52:12,095 WARN L227 SmtUtils]: Spent 7.59s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 17:52:12,097 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 17:52:12,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1998 treesize of output 1475 [2021-11-25 17:52:12,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:22,317 WARN L227 SmtUtils]: Spent 10.10s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 17:52:22,318 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 17:52:22,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2099 treesize of output 1817 [2021-11-25 17:52:22,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:22,913 INFO L244 Elim1Store]: Index analysis took 410 ms [2021-11-25 17:52:34,743 WARN L227 SmtUtils]: Spent 11.55s on a formula simplification. DAG size of input: 245 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 17:52:34,744 INFO L354 Elim1Store]: treesize reduction 2494, result has 31.7 percent of original size [2021-11-25 17:52:34,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1542 treesize of output 1373 [2021-11-25 17:52:35,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:35,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:35,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:35,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:35,352 INFO L244 Elim1Store]: Index analysis took 180 ms [2021-11-25 17:52:36,287 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-11-25 17:52:36,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 42 treesize of output 73 [2021-11-25 17:52:36,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:36,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:36,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:36,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:36,605 INFO L244 Elim1Store]: Index analysis took 110 ms [2021-11-25 17:52:36,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 46 [2021-11-25 17:52:37,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:37,255 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-25 17:52:37,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 30 [2021-11-25 17:52:37,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:37,773 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 17:52:37,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 63 [2021-11-25 17:52:37,966 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:38,026 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:38,149 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:38,215 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:38,319 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:38,385 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:38,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:38,522 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:52:38,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:38,534 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:52:38,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:38,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:38,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:38,649 INFO L244 Elim1Store]: Index analysis took 141 ms [2021-11-25 17:52:38,753 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 17:52:38,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3084 treesize of output 2866 [2021-11-25 17:52:38,951 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:39,192 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:39,286 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:52:39,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:39,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:39,323 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:52:39,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:39,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:39,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:39,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:39,392 INFO L244 Elim1Store]: Index analysis took 107 ms [2021-11-25 17:52:39,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3096 treesize of output 2648 [2021-11-25 17:52:39,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:39,685 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:52:39,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:39,710 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:52:39,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:39,741 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:52:39,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:39,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:39,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:39,810 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:52:39,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:39,828 INFO L244 Elim1Store]: Index analysis took 160 ms [2021-11-25 17:52:39,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3105 treesize of output 2651 [2021-11-25 17:52:40,159 INFO L244 Elim1Store]: Index analysis took 157 ms [2021-11-25 17:52:42,662 INFO L354 Elim1Store]: treesize reduction 468, result has 74.7 percent of original size [2021-11-25 17:52:42,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 3105 treesize of output 4035 [2021-11-25 17:52:44,582 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:44,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,685 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:52:44,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,706 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:52:44,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,798 INFO L244 Elim1Store]: Index analysis took 128 ms [2021-11-25 17:52:44,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3096 treesize of output 2648 [2021-11-25 17:52:45,013 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:45,123 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:52:45,143 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:52:45,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,263 INFO L244 Elim1Store]: Index analysis took 143 ms [2021-11-25 17:52:45,613 INFO L354 Elim1Store]: treesize reduction 6, result has 91.3 percent of original size [2021-11-25 17:52:45,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 3096 treesize of output 2710 [2021-11-25 17:52:46,624 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:46,679 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:46,775 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:46,846 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:47,002 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:52:47,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:47,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:47,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:47,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 3075 treesize of output 2645 [2021-11-25 17:52:47,242 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:47,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:47,436 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:52:47,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:47,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:47,524 INFO L244 Elim1Store]: Index analysis took 114 ms [2021-11-25 17:52:48,026 INFO L354 Elim1Store]: treesize reduction 793, result has 31.2 percent of original size [2021-11-25 17:52:48,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3084 treesize of output 3008 [2021-11-25 17:52:48,267 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:49,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:49,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2021-11-25 17:52:49,486 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:49,526 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:49,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:49,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-11-25 17:52:49,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:49,913 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-25 17:52:49,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 32 [2021-11-25 17:52:50,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:50,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:50,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:50,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 59 [2021-11-25 17:52:50,088 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:52,345 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:52,853 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:52,936 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:52,963 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:53,056 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:53,133 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:52:56,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:56,247 INFO L190 IndexEqualityManager]: detected not equals via solver