./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur --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 7770ba1119c1ebb05279b2f71af570d7d6521032dfc344bf6d89fc60d99335e2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:19:22,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:19:22,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:19:22,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:19:22,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:19:22,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:19:22,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:19:22,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:19:22,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:19:22,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:19:22,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:19:22,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:19:22,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:19:22,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:19:22,240 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:19:22,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:19:22,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:19:22,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:19:22,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:19:22,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:19:22,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:19:22,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:19:22,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:19:22,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:19:22,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:19:22,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:19:22,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:19:22,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:19:22,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:19:22,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:19:22,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:19:22,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:19:22,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:19:22,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:19:22,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:19:22,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:19:22,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:19:22,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:19:22,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:19:22,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:19:22,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:19:22,302 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:19:22,359 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:19:22,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:19:22,360 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:19:22,360 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:19:22,362 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:19:22,362 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:19:22,362 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:19:22,362 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:19:22,363 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:19:22,363 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:19:22,364 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:19:22,365 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:19:22,365 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:19:22,365 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:19:22,365 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:19:22,366 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:19:22,366 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:19:22,366 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:19:22,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:19:22,367 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:19:22,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:19:22,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:19:22,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:19:22,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:19:22,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:19:22,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:19:22,369 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:19:22,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:19:22,369 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:19:22,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:19:22,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:19:22,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:19:22,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:19:22,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:19:22,371 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:19:22,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:19:22,371 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:19:22,372 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:19:22,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:19:22,372 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:19:22,372 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:19:22,373 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7770ba1119c1ebb05279b2f71af570d7d6521032dfc344bf6d89fc60d99335e2 [2022-11-26 00:19:22,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:19:22,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:19:22,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:19:22,698 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:19:22,699 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:19:22,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i [2022-11-26 00:19:25,991 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:19:26,351 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:19:26,352 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i [2022-11-26 00:19:26,386 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/data/a59e46515/f14263dfc1b1428492175786bd0addfb/FLAG018733d16 [2022-11-26 00:19:26,402 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/data/a59e46515/f14263dfc1b1428492175786bd0addfb [2022-11-26 00:19:26,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:19:26,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:19:26,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:19:26,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:19:26,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:19:26,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:19:26" (1/1) ... [2022-11-26 00:19:26,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@671680fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:26, skipping insertion in model container [2022-11-26 00:19:26,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:19:26" (1/1) ... [2022-11-26 00:19:26,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:19:26,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:19:27,006 WARN L237 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_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[33021,33034] [2022-11-26 00:19:27,165 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:19:27,169 WARN L237 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_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[49681,49694] [2022-11-26 00:19:27,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:19:27,199 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:19:27,233 WARN L237 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_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[33021,33034] [2022-11-26 00:19:27,325 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:19:27,327 WARN L237 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_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[49681,49694] [2022-11-26 00:19:27,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:19:27,381 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:19:27,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:27 WrapperNode [2022-11-26 00:19:27,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:19:27,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:19:27,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:19:27,384 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:19:27,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:27" (1/1) ... [2022-11-26 00:19:27,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:27" (1/1) ... [2022-11-26 00:19:27,507 INFO L138 Inliner]: procedures = 177, calls = 439, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1549 [2022-11-26 00:19:27,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:19:27,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:19:27,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:19:27,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:19:27,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:27" (1/1) ... [2022-11-26 00:19:27,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:27" (1/1) ... [2022-11-26 00:19:27,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:27" (1/1) ... [2022-11-26 00:19:27,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:27" (1/1) ... [2022-11-26 00:19:27,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:27" (1/1) ... [2022-11-26 00:19:27,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:27" (1/1) ... [2022-11-26 00:19:27,702 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:27" (1/1) ... [2022-11-26 00:19:27,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:27" (1/1) ... [2022-11-26 00:19:27,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:19:27,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:19:27,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:19:27,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:19:27,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:27" (1/1) ... [2022-11-26 00:19:27,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:19:27,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:27,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:19:27,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:19:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:19:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:19:27,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:19:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:19:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 00:19:27,870 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 00:19:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:19:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:19:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:19:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:19:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-26 00:19:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:19:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:19:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:19:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:19:27,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:19:28,171 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:19:28,174 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:19:30,675 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:19:31,417 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:19:31,418 INFO L300 CfgBuilder]: Removed 92 assume(true) statements. [2022-11-26 00:19:31,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:19:31 BoogieIcfgContainer [2022-11-26 00:19:31,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:19:31,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:19:31,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:19:31,429 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:19:31,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:19:26" (1/3) ... [2022-11-26 00:19:31,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14d1be15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:19:31, skipping insertion in model container [2022-11-26 00:19:31,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:27" (2/3) ... [2022-11-26 00:19:31,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14d1be15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:19:31, skipping insertion in model container [2022-11-26 00:19:31,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:19:31" (3/3) ... [2022-11-26 00:19:31,433 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test5-2.i [2022-11-26 00:19:31,456 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:19:31,456 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:19:31,522 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:19:31,531 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2d693606, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:19:31,532 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:19:31,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-26 00:19:31,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:19:31,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:31,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:19:31,552 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:19:31,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:31,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1765117460, now seen corresponding path program 1 times [2022-11-26 00:19:31,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:31,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227703433] [2022-11-26 00:19:31,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:31,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:31,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:31,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:31,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227703433] [2022-11-26 00:19:31,787 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-26 00:19:31,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226325734] [2022-11-26 00:19:31,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:31,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:31,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:31,795 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:19:31,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:19:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:32,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-26 00:19:32,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:32,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:32,127 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:19:32,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226325734] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:32,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:32,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:19:32,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075611386] [2022-11-26 00:19:32,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:32,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:19:32,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:32,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:19:32,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:19:32,174 INFO L87 Difference]: Start difference. First operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-26 00:19:33,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:33,034 INFO L93 Difference]: Finished difference Result 329 states and 588 transitions. [2022-11-26 00:19:33,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:19:33,040 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-11-26 00:19:33,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:33,051 INFO L225 Difference]: With dead ends: 329 [2022-11-26 00:19:33,051 INFO L226 Difference]: Without dead ends: 150 [2022-11-26 00:19:33,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:19:33,058 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:33,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:19:33,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-26 00:19:33,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-26 00:19:33,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 141 states have internal predecessors, (161), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-26 00:19:33,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-11-26 00:19:33,123 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-11-26 00:19:33,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:33,123 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-11-26 00:19:33,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-26 00:19:33,124 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-11-26 00:19:33,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-26 00:19:33,126 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:33,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:33,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-26 00:19:33,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-26 00:19:33,332 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:19:33,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:33,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1566679301, now seen corresponding path program 1 times [2022-11-26 00:19:33,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:33,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33504046] [2022-11-26 00:19:33,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:33,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:33,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:33,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33504046] [2022-11-26 00:19:33,373 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-26 00:19:33,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555700106] [2022-11-26 00:19:33,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:33,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:33,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:33,376 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:19:33,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:19:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:33,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:19:33,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:33,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:33,797 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:19:33,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555700106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:33,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:33,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:19:33,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158544701] [2022-11-26 00:19:33,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:33,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:19:33,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:33,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:19:33,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:19:33,801 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:35,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:35,078 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-11-26 00:19:35,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:19:35,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-26 00:19:35,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:35,085 INFO L225 Difference]: With dead ends: 342 [2022-11-26 00:19:35,085 INFO L226 Difference]: Without dead ends: 290 [2022-11-26 00:19:35,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:19:35,087 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:35,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:19:35,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-26 00:19:35,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-11-26 00:19:35,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 136 states have (on average 1.1911764705882353) internal successors, (162), 142 states have internal predecessors, (162), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-26 00:19:35,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-11-26 00:19:35,108 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-11-26 00:19:35,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:35,108 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-11-26 00:19:35,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:35,109 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-11-26 00:19:35,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-26 00:19:35,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:35,111 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:35,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:19:35,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:35,318 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:19:35,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:35,319 INFO L85 PathProgramCache]: Analyzing trace with hash -867190139, now seen corresponding path program 1 times [2022-11-26 00:19:35,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:35,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011530269] [2022-11-26 00:19:35,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:35,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:35,600 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:19:35,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1381383153] [2022-11-26 00:19:35,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:35,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:35,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:35,603 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:19:35,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:19:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:37,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:19:37,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:37,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:37,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:19:37,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:37,298 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:37,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011530269] [2022-11-26 00:19:37,298 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:19:37,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381383153] [2022-11-26 00:19:37,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381383153] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:19:37,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1589892894] [2022-11-26 00:19:37,322 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-26 00:19:37,323 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:19:37,327 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:19:37,334 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:19:37,334 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:19:37,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:37,504 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-26 00:19:37,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-26 00:19:37,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:37,543 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:19:37,544 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:19:37,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:37,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:19:37,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:37,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:37,658 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:19:37,659 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:19:37,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:37,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:37,683 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:19:37,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:37,705 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:19:37,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-26 00:19:37,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:37,737 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:19:38,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:19:38,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-26 00:19:38,489 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:19:38,514 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:19:39,047 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:19:39,068 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:19:39,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:19:39,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-26 00:19:39,263 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:19:48,207 WARN L233 SmtUtils]: Spent 5.71s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:19:56,517 WARN L233 SmtUtils]: Spent 6.20s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:19:56,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1589892894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:56,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:19:56,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-26 00:19:56,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309507808] [2022-11-26 00:19:56,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:56,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:19:56,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:56,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:19:56,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-26 00:19:56,526 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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) [2022-11-26 00:19:59,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:20:01,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:20:03,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:20:06,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:20:06,623 INFO L93 Difference]: Finished difference Result 313 states and 382 transitions. [2022-11-26 00:20:06,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:20:06,624 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2022-11-26 00:20:06,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:20:06,625 INFO L225 Difference]: With dead ends: 313 [2022-11-26 00:20:06,626 INFO L226 Difference]: Without dead ends: 164 [2022-11-26 00:20:06,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-11-26 00:20:06,628 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 1 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:20:06,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 402 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 184 Invalid, 3 Unknown, 0 Unchecked, 9.2s Time] [2022-11-26 00:20:06,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-26 00:20:06,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 161. [2022-11-26 00:20:06,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.178082191780822) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-26 00:20:06,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-11-26 00:20:06,659 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-11-26 00:20:06,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:20:06,659 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-11-26 00:20:06,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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) [2022-11-26 00:20:06,660 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-11-26 00:20:06,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-26 00:20:06,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:20:06,663 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:20:06,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:20:06,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:20:06,877 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:20:06,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:20:06,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1835922908, now seen corresponding path program 1 times [2022-11-26 00:20:06,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:20:06,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067384034] [2022-11-26 00:20:06,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:20:06,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:20:07,106 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:20:07,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [797972327] [2022-11-26 00:20:07,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:20:07,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:20:07,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:20:07,108 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:20:07,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:20:08,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:20:08,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:20:08,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:20:08,599 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:20:08,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:20:08,730 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:20:08,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:20:08,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067384034] [2022-11-26 00:20:08,730 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:20:08,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797972327] [2022-11-26 00:20:08,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797972327] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:20:08,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1386745742] [2022-11-26 00:20:08,735 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-26 00:20:08,736 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:20:08,736 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:20:08,737 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:20:08,737 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:20:08,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:08,865 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:20:08,866 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:20:08,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:08,879 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:20:08,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:08,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:08,938 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 00:20:08,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-26 00:20:08,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:08,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:20:08,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:08,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,008 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:20:09,009 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:20:09,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,037 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:20:09,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:20:09,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-26 00:20:09,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:20:09,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-26 00:20:09,567 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:20:09,592 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:20:09,629 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:20:09,641 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:20:09,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:20:09,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:20:09,832 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:20:09,863 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:20:09,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,945 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-26 00:20:09,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-26 00:20:09,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:09,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,045 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:20:10,046 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:20:10,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:20:10,785 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:20:10,802 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:20:10,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:20:10,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-26 00:20:11,014 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:20:11,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:20:11,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:20:11,153 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:20:11,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:20:11,267 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:20:11,294 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:20:11,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,377 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-26 00:20:11,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-26 00:20:11,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:11,474 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:20:11,474 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:20:11,883 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-11-26 00:20:11,986 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:20:18,894 WARN L233 SmtUtils]: Spent 5.30s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:20:27,063 WARN L233 SmtUtils]: Spent 6.08s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:20:38,221 WARN L233 SmtUtils]: Spent 7.03s on a formula simplification. DAG size of input: 262 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:20:51,018 WARN L233 SmtUtils]: Spent 6.64s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:21:06,551 WARN L233 SmtUtils]: Spent 9.31s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:21:07,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1386745742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:21:07,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:21:07,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-26 00:21:07,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526248739] [2022-11-26 00:21:07,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:21:07,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:21:07,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:21:07,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:21:07,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-26 00:21:07,943 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:21:10,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:21:12,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:21:14,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:21:16,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:21:18,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:21:20,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:21:22,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:21:25,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:21:27,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:21:35,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:21:35,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:21:35,138 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-11-26 00:21:35,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-26 00:21:35,139 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-11-26 00:21:35,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:21:35,140 INFO L225 Difference]: With dead ends: 315 [2022-11-26 00:21:35,140 INFO L226 Difference]: Without dead ends: 166 [2022-11-26 00:21:35,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 56.0s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-26 00:21:35,142 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:21:35,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 402 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 10 Unknown, 0 Unchecked, 27.1s Time] [2022-11-26 00:21:35,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-26 00:21:35,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-26 00:21:35,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-26 00:21:35,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-11-26 00:21:35,176 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-11-26 00:21:35,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:21:35,177 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-11-26 00:21:35,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:21:35,177 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-11-26 00:21:35,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-26 00:21:35,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:21:35,180 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:21:35,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:21:35,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:21:35,394 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:21:35,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:21:35,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1163140644, now seen corresponding path program 1 times [2022-11-26 00:21:35,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:21:35,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286363428] [2022-11-26 00:21:35,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:21:35,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:21:35,590 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:21:35,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1982972608] [2022-11-26 00:21:35,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:21:35,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:21:35,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:21:35,592 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:21:35,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7b4402-78f1-4bf1-88e3-d23ecda9dd7e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 00:21:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:21:37,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:21:37,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:21:37,172 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 00:21:37,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:21:37,320 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 00:21:37,320 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:21:37,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286363428] [2022-11-26 00:21:37,320 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:21:37,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982972608] [2022-11-26 00:21:37,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982972608] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:21:37,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [845543309] [2022-11-26 00:21:37,324 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-26 00:21:37,324 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:21:37,325 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:21:37,325 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:21:37,325 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:21:37,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:37,424 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:21:37,424 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:21:37,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:37,439 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:21:37,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:37,464 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:21:37,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:37,483 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:21:37,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-26 00:21:37,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:37,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:37,540 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 00:21:37,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-26 00:21:37,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:37,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:21:37,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:37,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:21:37,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:37,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:37,650 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:21:37,650 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:21:37,972 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:21:37,995 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:21:38,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:21:38,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-26 00:21:38,213 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:21:38,229 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:21:38,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:21:38,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:21:38,432 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:21:38,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,511 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-26 00:21:38,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-26 00:21:38,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,608 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:21:38,609 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:21:38,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:38,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:21:38,706 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:21:38,858 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:21:38,862 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:21:38,867 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:21:38,933 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:21:38,933 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:21:38,972 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-26 00:21:38,972 INFO L350 Elim1Store]: Elim1 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 49 treesize of output 52 [2022-11-26 00:21:39,009 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:21:39,010 INFO L350 Elim1Store]: Elim1 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 43 treesize of output 46 [2022-11-26 00:21:39,060 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:21:39,067 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:21:39,075 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:21:39,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-26 00:21:39,259 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:21:39,279 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:21:39,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:39,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-26 00:21:39,498 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:21:39,519 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:21:40,889 INFO L217 Elim1Store]: Index analysis took 1006 ms [2022-11-26 00:21:48,293 WARN L233 SmtUtils]: Spent 7.40s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:21:48,293 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-26 00:21:48,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 10752723 treesize of output 10752742 [2022-11-26 00:21:52,129 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |ULTIMATE.start_main_~user~0#1.base| |ULTIMATE.start_main_~#j~0#1.base|) [2022-11-26 00:21:52,653 INFO L217 Elim1Store]: Index analysis took 4040 ms [2022-11-26 00:21:53,642 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-26 00:21:53,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 10752718 treesize of output 10752722 [2022-11-26 00:25:48,323 WARN L233 SmtUtils]: Spent 3.91m on a formula simplification. DAG size of input: 198 DAG size of output: 106 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:25:48,324 INFO L321 Elim1Store]: treesize reduction 1611, result has 24.6 percent of original size [2022-11-26 00:25:48,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 8576 treesize of output 6519 [2022-11-26 00:25:49,092 INFO L217 Elim1Store]: Index analysis took 348 ms [2022-11-26 00:27:55,847 WARN L233 SmtUtils]: Spent 2.11m on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:27:55,847 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-26 00:27:55,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 8524 treesize of output 7357 [2022-11-26 00:28:01,391 INFO L217 Elim1Store]: Index analysis took 4117 ms