./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-1.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_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/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_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/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_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/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 f1f34940ecf685c2c1201858b264ccb53eb3034d3cb9952a1b49bb437c42dde1 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:26:08,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:26:08,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:26:09,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:26:09,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:26:09,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:26:09,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:26:09,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:26:09,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:26:09,030 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:26:09,031 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:26:09,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:26:09,033 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:26:09,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:26:09,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:26:09,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:26:09,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:26:09,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:26:09,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:26:09,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:26:09,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:26:09,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:26:09,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:26:09,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:26:09,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:26:09,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:26:09,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:26:09,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:26:09,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:26:09,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:26:09,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:26:09,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:26:09,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:26:09,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:26:09,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:26:09,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:26:09,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:26:09,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:26:09,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:26:09,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:26:09,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:26:09,083 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 18:26:09,134 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:26:09,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:26:09,134 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:26:09,135 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:26:09,135 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:26:09,136 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:26:09,136 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:26:09,136 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:26:09,136 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:26:09,136 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:26:09,137 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:26:09,137 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:26:09,137 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:26:09,137 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:26:09,137 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:26:09,138 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:26:09,138 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:26:09,138 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:26:09,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:26:09,139 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:26:09,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:26:09,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:26:09,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:26:09,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:26:09,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:26:09,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:26:09,148 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:26:09,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:26:09,149 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:26:09,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:26:09,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:26:09,150 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:26:09,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:26:09,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:26:09,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:26:09,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:26:09,152 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:26:09,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:26:09,153 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:26:09,153 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:26:09,153 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:26:09,153 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_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1f34940ecf685c2c1201858b264ccb53eb3034d3cb9952a1b49bb437c42dde1 [2021-11-25 18:26:09,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:26:09,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:26:09,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:26:09,450 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:26:09,451 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:26:09,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-1.i [2021-11-25 18:26:09,524 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/data/ebe65dc18/1b964b22d87b49bcbe33fec6eb73f057/FLAG8db1cc3af [2021-11-25 18:26:10,131 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:26:10,131 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-1.i [2021-11-25 18:26:10,163 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/data/ebe65dc18/1b964b22d87b49bcbe33fec6eb73f057/FLAG8db1cc3af [2021-11-25 18:26:10,373 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/data/ebe65dc18/1b964b22d87b49bcbe33fec6eb73f057 [2021-11-25 18:26:10,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:26:10,377 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:26:10,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:26:10,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:26:10,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:26:10,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:26:10" (1/1) ... [2021-11-25 18:26:10,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@655c372f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:10, skipping insertion in model container [2021-11-25 18:26:10,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:26:10" (1/1) ... [2021-11-25 18:26:10,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:26:10,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:26:10,913 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_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-1.i[33021,33034] [2021-11-25 18:26:11,098 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_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-1.i[44590,44603] [2021-11-25 18:26:11,115 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:26:11,124 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:26:11,178 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_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-1.i[33021,33034] [2021-11-25 18:26:11,248 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_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-1.i[44590,44603] [2021-11-25 18:26:11,251 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:26:11,317 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:26:11,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:11 WrapperNode [2021-11-25 18:26:11,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:26:11,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:26:11,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:26:11,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:26:11,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:11" (1/1) ... [2021-11-25 18:26:11,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:11" (1/1) ... [2021-11-25 18:26:11,469 INFO L137 Inliner]: procedures = 177, calls = 285, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1026 [2021-11-25 18:26:11,470 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:26:11,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:26:11,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:26:11,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:26:11,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:11" (1/1) ... [2021-11-25 18:26:11,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:11" (1/1) ... [2021-11-25 18:26:11,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:11" (1/1) ... [2021-11-25 18:26:11,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:11" (1/1) ... [2021-11-25 18:26:11,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:11" (1/1) ... [2021-11-25 18:26:11,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:11" (1/1) ... [2021-11-25 18:26:11,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:11" (1/1) ... [2021-11-25 18:26:11,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:26:11,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:26:11,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:26:11,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:26:11,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:11" (1/1) ... [2021-11-25 18:26:11,637 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:26:11,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:26:11,661 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:26:11,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:26:11,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:26:11,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 18:26:11,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 18:26:11,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:26:11,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 18:26:11,710 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 18:26:11,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:26:11,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:26:11,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:26:11,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:26:11,711 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 18:26:11,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:26:11,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:26:11,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:26:11,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:26:11,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:26:11,978 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:26:11,980 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:26:12,941 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:26:13,370 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:26:13,370 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-25 18:26:13,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:26:13 BoogieIcfgContainer [2021-11-25 18:26:13,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:26:13,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:26:13,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:26:13,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:26:13,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:26:10" (1/3) ... [2021-11-25 18:26:13,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1406a95b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:26:13, skipping insertion in model container [2021-11-25 18:26:13,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:11" (2/3) ... [2021-11-25 18:26:13,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1406a95b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:26:13, skipping insertion in model container [2021-11-25 18:26:13,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:26:13" (3/3) ... [2021-11-25 18:26:13,382 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test3-1.i [2021-11-25 18:26:13,388 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:26:13,388 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 18:26:13,437 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:26:13,445 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:26:13,445 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 18:26:13,467 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 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 18:26:13,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 18:26:13,472 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:26:13,473 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:26:13,473 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:26:13,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:26:13,479 INFO L85 PathProgramCache]: Analyzing trace with hash -957118725, now seen corresponding path program 1 times [2021-11-25 18:26:13,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:26:13,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108980543] [2021-11-25 18:26:13,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:26:13,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:26:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:26:13,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:26:13,728 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:26:13,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108980543] [2021-11-25 18:26:13,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108980543] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:26:13,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:26:13,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:26:13,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660015567] [2021-11-25 18:26:13,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:26:13,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 18:26:13,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:26:13,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 18:26:13,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:26:13,788 INFO L87 Difference]: Start difference. First operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 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 18:26:14,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:26:14,520 INFO L93 Difference]: Finished difference Result 245 states and 432 transitions. [2021-11-25 18:26:14,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 18:26:14,531 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 18:26:14,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:26:14,542 INFO L225 Difference]: With dead ends: 245 [2021-11-25 18:26:14,542 INFO L226 Difference]: Without dead ends: 122 [2021-11-25 18:26:14,546 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 18:26:14,550 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:26:14,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 18:26:14,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-25 18:26:14,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-25 18:26:14,595 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 18:26:14,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2021-11-25 18:26:14,599 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 8 [2021-11-25 18:26:14,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:26:14,600 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2021-11-25 18:26:14,600 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 18:26:14,600 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2021-11-25 18:26:14,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 18:26:14,602 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:26:14,602 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:26:14,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:26:14,603 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:26:14,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:26:14,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1851937168, now seen corresponding path program 1 times [2021-11-25 18:26:14,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:26:14,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874686031] [2021-11-25 18:26:14,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:26:14,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:26:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:26:14,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:26:14,670 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:26:14,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874686031] [2021-11-25 18:26:14,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874686031] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:26:14,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:26:14,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:26:14,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424931644] [2021-11-25 18:26:14,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:26:14,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:26:14,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:26:14,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:26:14,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:26:14,674 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 18:26:15,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:26:15,868 INFO L93 Difference]: Finished difference Result 258 states and 326 transitions. [2021-11-25 18:26:15,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:26:15,872 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 18:26:15,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:26:15,877 INFO L225 Difference]: With dead ends: 258 [2021-11-25 18:26:15,877 INFO L226 Difference]: Without dead ends: 189 [2021-11-25 18:26:15,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:26:15,880 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 73 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:26:15,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 359 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-25 18:26:15,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-25 18:26:15,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 124. [2021-11-25 18:26:15,899 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 18:26:15,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2021-11-25 18:26:15,901 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 13 [2021-11-25 18:26:15,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:26:15,901 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2021-11-25 18:26:15,901 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 18:26:15,902 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2021-11-25 18:26:15,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-25 18:26:15,903 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:26:15,904 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 18:26:15,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:26:15,904 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:26:15,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:26:15,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1227120832, now seen corresponding path program 1 times [2021-11-25 18:26:15,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:26:15,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446869251] [2021-11-25 18:26:15,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:26:15,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:26:16,032 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:26:16,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2079659170] [2021-11-25 18:26:16,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:26:16,033 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:26:16,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:26:16,036 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:26:16,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:26:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:26:16,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 1624 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:26:16,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:26:16,920 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 18:26:16,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:26:16,920 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:26:16,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446869251] [2021-11-25 18:26:16,921 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:26:16,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079659170] [2021-11-25 18:26:16,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079659170] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:26:16,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:26:16,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:26:16,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352350318] [2021-11-25 18:26:16,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:26:16,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:26:16,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:26:16,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:26:16,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:26:16,928 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 18:26:18,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:26:18,210 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2021-11-25 18:26:18,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:26:18,216 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 18:26:18,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:26:18,218 INFO L225 Difference]: With dead ends: 304 [2021-11-25 18:26:18,218 INFO L226 Difference]: Without dead ends: 183 [2021-11-25 18:26:18,219 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 18:26:18,221 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:26:18,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 280 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-25 18:26:18,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-25 18:26:18,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2021-11-25 18:26:18,238 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 18:26:18,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2021-11-25 18:26:18,240 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 37 [2021-11-25 18:26:18,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:26:18,241 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2021-11-25 18:26:18,241 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 18:26:18,241 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2021-11-25 18:26:18,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-25 18:26:18,243 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:26:18,243 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 18:26:18,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 18:26:18,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:26:18,460 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:26:18,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:26:18,461 INFO L85 PathProgramCache]: Analyzing trace with hash 2111487482, now seen corresponding path program 1 times [2021-11-25 18:26:18,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:26:18,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691462554] [2021-11-25 18:26:18,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:26:18,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:26:18,536 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:26:18,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1907165401] [2021-11-25 18:26:18,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:26:18,541 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:26:18,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:26:18,542 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:26:18,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 18:26:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:26:18,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:26:18,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:26:19,146 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 18:26:19,169 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 18:26:19,185 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 18:26:19,186 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:26:19,186 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:26:19,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691462554] [2021-11-25 18:26:19,191 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:26:19,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907165401] [2021-11-25 18:26:19,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907165401] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:26:19,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:26:19,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:26:19,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417747241] [2021-11-25 18:26:19,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:26:19,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:26:19,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:26:19,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:26:19,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:26:19,194 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 18:26:20,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:26:20,994 INFO L93 Difference]: Finished difference Result 231 states and 285 transitions. [2021-11-25 18:26:21,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:26:21,001 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 18:26:21,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:26:21,003 INFO L225 Difference]: With dead ends: 231 [2021-11-25 18:26:21,003 INFO L226 Difference]: Without dead ends: 212 [2021-11-25 18:26:21,003 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 18:26:21,004 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 46 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s 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, 1.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:26:21,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 358 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-25 18:26:21,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-11-25 18:26:21,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 169. [2021-11-25 18:26:21,020 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 18:26:21,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2021-11-25 18:26:21,022 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 50 [2021-11-25 18:26:21,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:26:21,022 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2021-11-25 18:26:21,022 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 18:26:21,023 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2021-11-25 18:26:21,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-25 18:26:21,025 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:26:21,025 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 18:26:21,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 18:26:21,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:26:21,252 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:26:21,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:26:21,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1926488172, now seen corresponding path program 1 times [2021-11-25 18:26:21,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:26:21,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042145417] [2021-11-25 18:26:21,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:26:21,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:26:21,329 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:26:21,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [205271488] [2021-11-25 18:26:21,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:26:21,333 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:26:21,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:26:21,334 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:26:21,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 18:26:21,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:26:21,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:26:21,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:26:21,951 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 18:26:21,951 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:26:21,952 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:26:21,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042145417] [2021-11-25 18:26:21,952 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:26:21,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205271488] [2021-11-25 18:26:21,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205271488] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:26:21,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:26:21,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:26:21,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448386241] [2021-11-25 18:26:21,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:26:21,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:26:21,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:26:21,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:26:21,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:26:21,955 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 18:26:22,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:26:22,703 INFO L93 Difference]: Finished difference Result 395 states and 492 transitions. [2021-11-25 18:26:22,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:26:22,703 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 18:26:22,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:26:22,706 INFO L225 Difference]: With dead ends: 395 [2021-11-25 18:26:22,706 INFO L226 Difference]: Without dead ends: 242 [2021-11-25 18:26:22,707 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 18:26:22,707 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 257 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:26:22,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 296 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 18:26:22,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-11-25 18:26:22,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 214. [2021-11-25 18:26:22,726 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 18:26:22,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2021-11-25 18:26:22,728 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 57 [2021-11-25 18:26:22,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:26:22,729 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2021-11-25 18:26:22,729 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 18:26:22,729 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2021-11-25 18:26:22,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-25 18:26:22,731 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:26:22,732 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 18:26:22,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-25 18:26:22,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:26:22,940 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:26:22,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:26:22,941 INFO L85 PathProgramCache]: Analyzing trace with hash 798103091, now seen corresponding path program 1 times [2021-11-25 18:26:22,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:26:22,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713653934] [2021-11-25 18:26:22,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:26:22,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:26:23,021 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:26:23,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1675180952] [2021-11-25 18:26:23,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:26:23,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:26:23,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:26:23,028 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:26:23,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 18:26:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:26:24,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 18:26:24,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:26:24,521 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:26:24,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:26:24,522 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:26:24,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713653934] [2021-11-25 18:26:24,522 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:26:24,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675180952] [2021-11-25 18:26:24,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675180952] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:26:24,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:26:24,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:26:24,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697955528] [2021-11-25 18:26:24,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:26:24,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:26:24,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:26:24,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:26:24,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:26:24,524 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:26:26,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:26:26,019 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2021-11-25 18:26:26,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:26:26,028 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2021-11-25 18:26:26,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:26:26,030 INFO L225 Difference]: With dead ends: 411 [2021-11-25 18:26:26,030 INFO L226 Difference]: Without dead ends: 216 [2021-11-25 18:26:26,031 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 18:26:26,032 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:26:26,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 389 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-25 18:26:26,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-25 18:26:26,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-11-25 18:26:26,044 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 18:26:26,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 260 transitions. [2021-11-25 18:26:26,046 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 260 transitions. Word has length 64 [2021-11-25 18:26:26,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:26:26,046 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 260 transitions. [2021-11-25 18:26:26,047 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:26:26,047 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 260 transitions. [2021-11-25 18:26:26,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-25 18:26:26,049 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:26:26,049 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 18:26:26,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 18:26:26,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:26:26,276 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:26:26,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:26:26,276 INFO L85 PathProgramCache]: Analyzing trace with hash -320971085, now seen corresponding path program 1 times [2021-11-25 18:26:26,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:26:26,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420064270] [2021-11-25 18:26:26,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:26:26,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:26:26,354 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:26:26,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [708560397] [2021-11-25 18:26:26,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:26:26,362 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:26:26,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:26:26,372 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:26:26,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e2eba24-fe4e-4087-a614-c0c09e3b6df9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 18:27:30,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:27:30,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 840 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-25 18:27:30,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:27:31,122 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 18:27:31,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:27:31,354 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 18:27:31,354 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:27:31,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420064270] [2021-11-25 18:27:31,354 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:27:31,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708560397] [2021-11-25 18:27:31,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708560397] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:27:31,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [435691856] [2021-11-25 18:27:31,376 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-25 18:27:31,376 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:27:31,381 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:27:31,387 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:27:31,387 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:27:31,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:31,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 18:27:31,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:31,557 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 18:27:31,558 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 18:27:31,572 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 18:27:31,579 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 18:27:31,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:31,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 17 treesize of output 22 [2021-11-25 18:27:31,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:31,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:31,730 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 18:27:31,735 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 18:27:31,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:31,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:31,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 18:27:31,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:31,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:31,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:31,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:31,782 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 52 treesize of output 49 [2021-11-25 18:27:31,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:31,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 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 18:27:31,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:31,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 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 18:27:32,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,206 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 18:27:32,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,256 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 18:27:32,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,284 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 18:27:32,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,314 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 18:27:32,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,384 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 18:27:32,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,414 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 18:27:32,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,436 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 18:27:32,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,456 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 18:27:32,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,524 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 18:27:32,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,626 INFO L354 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2021-11-25 18:27:32,627 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 18:27:32,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,651 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 18:27:32,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,692 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 18:27:32,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:32,735 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 18:27:32,854 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 18:27:32,858 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 18:27:32,865 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 18:27:32,927 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 18:27:32,927 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 18:27:32,961 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 18:27:32,962 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 18:27:32,994 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 18:27:32,995 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 18:27:33,061 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 18:27:33,073 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 18:27:33,079 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 18:27:33,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,149 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 18:27:33,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,174 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 18:27:33,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,199 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 18:27:33,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,338 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 18:27:33,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,358 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 18:27:33,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:33,385 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 18:27:40,817 WARN L227 SmtUtils]: Spent 7.27s 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 18:27:40,818 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 18:27:40,818 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 18:27:40,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:51,085 WARN L227 SmtUtils]: Spent 10.16s 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 18:27:51,086 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 18:27:51,086 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 18:27:51,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:51,752 INFO L244 Elim1Store]: Index analysis took 415 ms [2021-11-25 18:28:04,078 WARN L227 SmtUtils]: Spent 11.90s on a formula simplification. DAG size of input: 244 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:28:04,079 INFO L354 Elim1Store]: treesize reduction 2566, result has 31.1 percent of original size [2021-11-25 18:28:04,079 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 1606 treesize of output 1377 [2021-11-25 18:28:04,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:04,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:04,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:04,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:04,763 INFO L244 Elim1Store]: Index analysis took 192 ms [2021-11-25 18:28:05,887 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-11-25 18:28:05,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 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 18:28:06,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:06,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:06,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:06,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:06,137 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 18:28:06,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:06,802 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-25 18:28:06,802 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 38 treesize of output 20 [2021-11-25 18:28:07,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:07,282 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:28:07,282 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 51 treesize of output 61 [2021-11-25 18:28:07,352 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:07,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:07,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:07,454 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:28:07,456 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 50 treesize of output 32 [2021-11-25 18:28:07,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:07,658 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-25 18:28:07,658 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 20 [2021-11-25 18:28:07,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:07,778 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:28:07,780 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 55 treesize of output 39 [2021-11-25 18:28:07,819 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:07,852 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:08,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:08,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:08,717 INFO L354 Elim1Store]: treesize reduction 20, result has 62.3 percent of original size [2021-11-25 18:28:08,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 73 treesize of output 83 [2021-11-25 18:28:08,799 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:08,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:08,870 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:28:08,871 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 34 treesize of output 16 [2021-11-25 18:28:09,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:09,946 INFO L244 Elim1Store]: Index analysis took 171 ms [2021-11-25 18:28:12,044 INFO L354 Elim1Store]: treesize reduction 15, result has 99.2 percent of original size [2021-11-25 18:28:12,044 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 5 new quantified variables, introduced 9 case distinctions, treesize of input 3149 treesize of output 4526 [2021-11-25 18:28:12,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:12,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:12,725 INFO L244 Elim1Store]: Index analysis took 104 ms [2021-11-25 18:28:12,916 INFO L354 Elim1Store]: treesize reduction 1822, result has 0.1 percent of original size [2021-11-25 18:28:12,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 3165 treesize of output 1 [2021-11-25 18:28:12,958 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:13,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:13,231 INFO L244 Elim1Store]: Index analysis took 207 ms [2021-11-25 18:28:16,217 INFO L354 Elim1Store]: treesize reduction 39, result has 97.9 percent of original size [2021-11-25 18:28:16,217 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 5 new quantified variables, introduced 9 case distinctions, treesize of input 3265 treesize of output 4630 [2021-11-25 18:28:18,349 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:18,423 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:18,471 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:18,520 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:18,604 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:21,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:21,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:21,394 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:28:21,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:21,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:21,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:21,505 INFO L244 Elim1Store]: Index analysis took 149 ms [2021-11-25 18:28:21,630 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:28:21,631 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 1 case distinctions, treesize of input 3088 treesize of output 2890 [2021-11-25 18:28:21,746 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:21,801 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:21,845 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:21,893 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:21,982 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:22,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:22,115 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:28:22,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:22,134 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:28:22,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:22,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:22,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:22,202 INFO L244 Elim1Store]: Index analysis took 104 ms [2021-11-25 18:28:22,295 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:28:22,295 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 1 case distinctions, treesize of input 3188 treesize of output 2984 [2021-11-25 18:28:22,351 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:22,578 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:28:22,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:22,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:22,604 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:28:22,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:22,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:22,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:22,703 INFO L354 Elim1Store]: treesize reduction 189, result has 0.5 percent of original size [2021-11-25 18:28:22,704 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 1 case distinctions, treesize of input 3072 treesize of output 1 [2021-11-25 18:28:24,132 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:24,201 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:24,249 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:24,299 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:24,392 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:28:24,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:24,411 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:28:24,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:24,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:24,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 3167 treesize of output 2791 [2021-11-25 18:28:24,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:24,567 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:28:24,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:24,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:24,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 3067 treesize of output 2697 [2021-11-25 18:28:24,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:24,777 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:28:24,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:24,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:24,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 3051 treesize of output 2687 [2021-11-25 18:28:25,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:25,129 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:28:25,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:25,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:25,773 INFO L354 Elim1Store]: treesize reduction 430, result has 62.8 percent of original size [2021-11-25 18:28:25,774 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 3128 treesize of output 3414 [2021-11-25 18:28:26,034 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:28:26,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:26,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:26,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:26,152 INFO L244 Elim1Store]: Index analysis took 118 ms [2021-11-25 18:28:26,854 INFO L354 Elim1Store]: treesize reduction 430, result has 63.2 percent of original size [2021-11-25 18:28:26,855 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 3244 treesize of output 3530 [2021-11-25 18:28:26,951 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:27,005 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:27,041 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:27,121 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:27,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:27,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:27,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:27,400 INFO L354 Elim1Store]: treesize reduction 1160, result has 0.1 percent of original size [2021-11-25 18:28:27,400 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 3144 treesize of output 2700 [2021-11-25 18:28:28,146 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:28,202 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:28,237 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:28,285 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:28,375 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:28:28,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:28,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:28,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:28,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 3167 treesize of output 2791 [2021-11-25 18:28:28,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:28,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:28,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:28,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 3067 treesize of output 2697 [2021-11-25 18:28:28,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:28,746 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:28:28,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:28,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:28,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 3051 treesize of output 2687 [2021-11-25 18:28:29,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:29,116 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:28:29,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:29,132 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:28:29,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:29,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:29,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:29,218 INFO L244 Elim1Store]: Index analysis took 119 ms [2021-11-25 18:28:29,238 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-25 18:28:29,238 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 1 case distinctions, treesize of input 3128 treesize of output 2690 [2021-11-25 18:28:29,409 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:28:29,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:29,438 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:28:29,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:29,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:29,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:29,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:29,588 INFO L244 Elim1Store]: Index analysis took 179 ms [2021-11-25 18:28:29,610 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-25 18:28:29,611 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 1 case distinctions, treesize of input 3244 treesize of output 2794 [2021-11-25 18:28:29,664 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:29,721 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:29,757 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:29,842 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:28:29,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:29,979 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:28:30,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:30,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:30,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:30,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:30,129 INFO L244 Elim1Store]: Index analysis took 168 ms [2021-11-25 18:28:30,149 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-25 18:28:30,149 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 1 case distinctions, treesize of input 3144 treesize of output 2700 [2021-11-25 18:28:33,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:33,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:33,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:33,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:33,607 INFO L244 Elim1Store]: Index analysis took 489 ms [2021-11-25 18:28:40,178 WARN L227 SmtUtils]: Spent 6.14s on a formula simplification. DAG size of input: 152 DAG size of output: 122 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:28:40,179 INFO L354 Elim1Store]: treesize reduction 1554, result has 60.0 percent of original size [2021-11-25 18:28:40,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 137218 treesize of output 137340 [2021-11-25 18:37:35,376 WARN L227 SmtUtils]: Spent 5.56s on a formula simplification that was a NOOP. DAG size: 3651 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)