./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.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_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/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_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/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_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/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 da01f7e29b47732481465e941f69a1c8f9dd5529ae81cb8448eb7568570e2356 --- 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 [2022-11-25 22:25:22,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:25:22,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:25:22,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:25:22,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:25:22,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:25:22,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:25:22,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:25:22,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:25:22,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:25:22,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:25:22,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:25:22,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:25:22,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:25:22,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:25:22,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:25:22,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:25:22,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:25:22,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:25:22,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:25:22,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:25:22,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:25:22,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:25:22,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:25:22,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:25:22,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:25:22,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:25:22,195 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:25:22,195 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:25:22,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:25:22,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:25:22,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:25:22,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:25:22,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:25:22,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:25:22,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:25:22,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:25:22,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:25:22,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:25:22,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:25:22,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:25:22,208 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 22:25:22,247 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:25:22,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:25:22,249 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:25:22,249 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:25:22,250 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:25:22,250 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:25:22,250 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:25:22,251 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:25:22,251 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:25:22,251 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:25:22,252 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:25:22,253 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:25:22,253 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:25:22,253 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:25:22,253 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:25:22,253 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:25:22,254 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:25:22,254 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:25:22,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:25:22,255 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:25:22,255 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:25:22,255 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:25:22,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:25:22,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:25:22,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:25:22,256 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:25:22,257 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:25:22,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:25:22,257 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:25:22,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:25:22,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:25:22,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:25:22,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:25:22,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:25:22,259 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:25:22,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:25:22,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:25:22,259 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:25:22,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:25:22,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:25:22,260 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:25:22,260 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_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da01f7e29b47732481465e941f69a1c8f9dd5529ae81cb8448eb7568570e2356 [2022-11-25 22:25:22,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:25:22,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:25:22,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:25:22,603 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:25:22,603 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:25:22,605 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i [2022-11-25 22:25:25,706 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:25:26,032 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:25:26,032 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i [2022-11-25 22:25:26,048 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/data/a92a50f2d/d0308b1f4e8e49d79dfbf7e243bc83a4/FLAGe19526145 [2022-11-25 22:25:26,064 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/data/a92a50f2d/d0308b1f4e8e49d79dfbf7e243bc83a4 [2022-11-25 22:25:26,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:25:26,068 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:25:26,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:25:26,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:25:26,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:25:26,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:25:26" (1/1) ... [2022-11-25 22:25:26,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24d92e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:26, skipping insertion in model container [2022-11-25 22:25:26,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:25:26" (1/1) ... [2022-11-25 22:25:26,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:25:26,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:25:26,781 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_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i[37019,37032] [2022-11-25 22:25:26,992 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:25:27,001 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_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i[47352,47365] [2022-11-25 22:25:27,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:25:27,058 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:25:27,117 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_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i[37019,37032] [2022-11-25 22:25:27,195 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:25:27,206 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_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i[47352,47365] [2022-11-25 22:25:27,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:25:27,281 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:25:27,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:27 WrapperNode [2022-11-25 22:25:27,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:25:27,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:25:27,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:25:27,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:25:27,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:27" (1/1) ... [2022-11-25 22:25:27,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:27" (1/1) ... [2022-11-25 22:25:27,439 INFO L138 Inliner]: procedures = 208, calls = 286, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1035 [2022-11-25 22:25:27,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:25:27,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:25:27,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:25:27,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:25:27,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:27" (1/1) ... [2022-11-25 22:25:27,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:27" (1/1) ... [2022-11-25 22:25:27,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:27" (1/1) ... [2022-11-25 22:25:27,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:27" (1/1) ... [2022-11-25 22:25:27,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:27" (1/1) ... [2022-11-25 22:25:27,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:27" (1/1) ... [2022-11-25 22:25:27,596 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:27" (1/1) ... [2022-11-25 22:25:27,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:27" (1/1) ... [2022-11-25 22:25:27,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:25:27,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:25:27,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:25:27,625 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:25:27,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:27" (1/1) ... [2022-11-25 22:25:27,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:25:27,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:27,665 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:25:27,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:25:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 22:25:27,709 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 22:25:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:25:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 22:25:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:25:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:25:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:25:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:25:27,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:25:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:25:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:25:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:25:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:25:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:25:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:25:27,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:25:27,935 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:25:27,938 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:25:29,707 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:25:30,165 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:25:30,165 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-11-25 22:25:30,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:25:30 BoogieIcfgContainer [2022-11-25 22:25:30,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:25:30,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:25:30,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:25:30,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:25:30,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:25:26" (1/3) ... [2022-11-25 22:25:30,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4122f9c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:25:30, skipping insertion in model container [2022-11-25 22:25:30,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:27" (2/3) ... [2022-11-25 22:25:30,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4122f9c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:25:30, skipping insertion in model container [2022-11-25 22:25:30,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:25:30" (3/3) ... [2022-11-25 22:25:30,178 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test2-2.i [2022-11-25 22:25:30,198 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:25:30,198 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:25:30,253 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:25:30,261 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;@30e88bcd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:25:30,261 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:25:30,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 22:25:30,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:25:30,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:25:30,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:25:30,275 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:25:30,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:25:30,281 INFO L85 PathProgramCache]: Analyzing trace with hash 527974349, now seen corresponding path program 1 times [2022-11-25 22:25:30,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:25:30,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793535159] [2022-11-25 22:25:30,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:30,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:25:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:30,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:25:30,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:25:30,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793535159] [2022-11-25 22:25:30,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793535159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:25:30,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:25:30,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:25:30,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426066051] [2022-11-25 22:25:30,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:25:30,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:25:30,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:25:30,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:25:30,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:25:30,570 INFO L87 Difference]: Start difference. First operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:32,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:25:32,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:25:32,271 INFO L93 Difference]: Finished difference Result 245 states and 432 transitions. [2022-11-25 22:25:32,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:25:32,283 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-25 22:25:32,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:25:32,293 INFO L225 Difference]: With dead ends: 245 [2022-11-25 22:25:32,293 INFO L226 Difference]: Without dead ends: 107 [2022-11-25 22:25:32,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:25:32,300 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:25:32,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-25 22:25:32,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-25 22:25:32,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-11-25 22:25:32,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 95 states have (on average 1.2210526315789474) internal successors, (116), 101 states have internal predecessors, (116), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 22:25:32,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 132 transitions. [2022-11-25 22:25:32,349 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 132 transitions. Word has length 8 [2022-11-25 22:25:32,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:25:32,350 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 132 transitions. [2022-11-25 22:25:32,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:32,350 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 132 transitions. [2022-11-25 22:25:32,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 22:25:32,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:25:32,353 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] [2022-11-25 22:25:32,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:25:32,353 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:25:32,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:25:32,354 INFO L85 PathProgramCache]: Analyzing trace with hash -949222695, now seen corresponding path program 1 times [2022-11-25 22:25:32,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:25:32,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530250264] [2022-11-25 22:25:32,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:32,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:25:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:32,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:25:32,823 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:25:32,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530250264] [2022-11-25 22:25:32,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530250264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:25:32,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:25:32,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:25:32,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996751451] [2022-11-25 22:25:32,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:25:32,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:25:32,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:25:32,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:25:32,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:25:32,828 INFO L87 Difference]: Start difference. First operand 107 states and 132 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-25 22:25:34,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:25:34,020 INFO L93 Difference]: Finished difference Result 222 states and 282 transitions. [2022-11-25 22:25:34,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:25:34,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2022-11-25 22:25:34,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:25:34,026 INFO L225 Difference]: With dead ends: 222 [2022-11-25 22:25:34,026 INFO L226 Difference]: Without dead ends: 168 [2022-11-25 22:25:34,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:25:34,028 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 66 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:25:34,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 316 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 22:25:34,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-25 22:25:34,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 109. [2022-11-25 22:25:34,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 97 states have (on average 1.2164948453608246) internal successors, (118), 103 states have internal predecessors, (118), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 22:25:34,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 134 transitions. [2022-11-25 22:25:34,045 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 134 transitions. Word has length 20 [2022-11-25 22:25:34,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:25:34,045 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 134 transitions. [2022-11-25 22:25:34,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-25 22:25:34,046 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 134 transitions. [2022-11-25 22:25:34,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-25 22:25:34,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:25:34,048 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:25:34,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:25:34,048 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:25:34,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:25:34,049 INFO L85 PathProgramCache]: Analyzing trace with hash 121394151, now seen corresponding path program 1 times [2022-11-25 22:25:34,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:25:34,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782040897] [2022-11-25 22:25:34,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:34,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:25:34,242 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:25:34,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1721461182] [2022-11-25 22:25:34,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:34,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:34,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:34,251 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:25:34,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:25:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:35,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 1659 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:25:35,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:25:35,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:25:35,176 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:25:35,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:25:35,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782040897] [2022-11-25 22:25:35,182 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:25:35,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721461182] [2022-11-25 22:25:35,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721461182] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:25:35,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:25:35,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:25:35,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364675947] [2022-11-25 22:25:35,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:25:35,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:25:35,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:25:35,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:25:35,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:25:35,191 INFO L87 Difference]: Start difference. First operand 109 states and 134 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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) [2022-11-25 22:25:36,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:25:36,384 INFO L93 Difference]: Finished difference Result 260 states and 324 transitions. [2022-11-25 22:25:36,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:25:36,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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 44 [2022-11-25 22:25:36,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:25:36,392 INFO L225 Difference]: With dead ends: 260 [2022-11-25 22:25:36,392 INFO L226 Difference]: Without dead ends: 154 [2022-11-25 22:25:36,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:25:36,394 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 43 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:25:36,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 238 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 22:25:36,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-11-25 22:25:36,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2022-11-25 22:25:36,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 135 states have (on average 1.2148148148148148) internal successors, (164), 146 states have internal predecessors, (164), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:25:36,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 190 transitions. [2022-11-25 22:25:36,420 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 190 transitions. Word has length 44 [2022-11-25 22:25:36,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:25:36,421 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 190 transitions. [2022-11-25 22:25:36,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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) [2022-11-25 22:25:36,421 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 190 transitions. [2022-11-25 22:25:36,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-25 22:25:36,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:25:36,424 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:25:36,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:25:36,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:36,634 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:25:36,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:25:36,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1666471257, now seen corresponding path program 1 times [2022-11-25 22:25:36,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:25:36,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360705610] [2022-11-25 22:25:36,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:36,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:25:36,740 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:25:36,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1189686030] [2022-11-25 22:25:36,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:36,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:36,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:36,747 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:25:36,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:25:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:37,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:25:37,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:25:37,421 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:25:37,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:25:37,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:25:37,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360705610] [2022-11-25 22:25:37,425 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:25:37,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189686030] [2022-11-25 22:25:37,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189686030] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:25:37,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:25:37,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:25:37,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046772692] [2022-11-25 22:25:37,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:25:37,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:25:37,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:25:37,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:25:37,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:25:37,431 INFO L87 Difference]: Start difference. First operand 152 states and 190 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:25:38,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:25:38,002 INFO L93 Difference]: Finished difference Result 258 states and 321 transitions. [2022-11-25 22:25:38,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:25:38,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-11-25 22:25:38,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:25:38,005 INFO L225 Difference]: With dead ends: 258 [2022-11-25 22:25:38,005 INFO L226 Difference]: Without dead ends: 122 [2022-11-25 22:25:38,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:25:38,007 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 163 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:25:38,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 153 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 22:25:38,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-11-25 22:25:38,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2022-11-25 22:25:38,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.1818181818181819) internal successors, (130), 116 states have internal predecessors, (130), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 22:25:38,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 146 transitions. [2022-11-25 22:25:38,027 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 146 transitions. Word has length 57 [2022-11-25 22:25:38,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:25:38,028 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 146 transitions. [2022-11-25 22:25:38,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:25:38,029 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 146 transitions. [2022-11-25 22:25:38,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-25 22:25:38,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:25:38,031 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:25:38,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:25:38,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:38,248 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:25:38,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:25:38,248 INFO L85 PathProgramCache]: Analyzing trace with hash 669433128, now seen corresponding path program 1 times [2022-11-25 22:25:38,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:25:38,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909680150] [2022-11-25 22:25:38,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:38,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:25:38,350 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:25:38,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1203077218] [2022-11-25 22:25:38,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:38,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:38,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:38,353 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:25:38,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:26:23,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:26:23,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:26:23,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:26:23,122 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:26:23,126 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:26:23,127 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:26:23,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909680150] [2022-11-25 22:26:23,127 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:26:23,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203077218] [2022-11-25 22:26:23,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203077218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:26:23,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:26:23,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:26:23,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093686086] [2022-11-25 22:26:23,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:26:23,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:26:23,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:26:23,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:26:23,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:26:23,133 INFO L87 Difference]: Start difference. First operand 122 states and 146 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:26:24,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:26:24,857 INFO L93 Difference]: Finished difference Result 227 states and 276 transitions. [2022-11-25 22:26:24,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:26:24,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2022-11-25 22:26:24,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:26:24,864 INFO L225 Difference]: With dead ends: 227 [2022-11-25 22:26:24,864 INFO L226 Difference]: Without dead ends: 124 [2022-11-25 22:26:24,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:26:24,866 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 1 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:26:24,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 347 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-25 22:26:24,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-11-25 22:26:24,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2022-11-25 22:26:24,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 111 states have (on average 1.1891891891891893) internal successors, (132), 118 states have internal predecessors, (132), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2022-11-25 22:26:24,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 149 transitions. [2022-11-25 22:26:24,889 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 149 transitions. Word has length 64 [2022-11-25 22:26:24,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:26:24,890 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 149 transitions. [2022-11-25 22:26:24,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:26:24,890 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 149 transitions. [2022-11-25 22:26:24,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-25 22:26:24,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:26:24,893 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:26:24,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:26:25,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:26:25,103 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:26:25,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:26:25,104 INFO L85 PathProgramCache]: Analyzing trace with hash -2127571752, now seen corresponding path program 1 times [2022-11-25 22:26:25,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:26:25,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872787397] [2022-11-25 22:26:25,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:26:25,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:26:25,176 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:26:25,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1025554669] [2022-11-25 22:26:25,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:26:25,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:26:25,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:26:25,179 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:26:25,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce62fa4a-d6ab-4ab2-9195-b4a8e4107f6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:26:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:26:46,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 22:26:46,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:26:46,826 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 22:26:46,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:26:47,006 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:26:47,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:26:47,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872787397] [2022-11-25 22:26:47,007 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:26:47,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025554669] [2022-11-25 22:26:47,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025554669] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:26:47,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [503043881] [2022-11-25 22:26:47,033 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-11-25 22:26:47,033 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:26:47,037 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:26:47,044 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:26:47,044 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:26:47,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-25 22:26:47,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:26:47,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:26:47,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,257 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 22:26:47,258 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 [2022-11-25 22:26:47,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,292 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 22:26:47,292 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 [2022-11-25 22:26:47,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,347 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 [2022-11-25 22:26:47,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,396 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:26:47,397 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 [2022-11-25 22:26:47,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,416 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 [2022-11-25 22:26:47,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,435 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 [2022-11-25 22:26:47,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,454 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 52 treesize of output 49 [2022-11-25 22:26:47,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:47,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9897009 treesize of output 5376288 [2022-11-25 22:26:48,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 8458577 treesize of output 4759834 [2022-11-25 22:26:48,103 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 [2022-11-25 22:26:48,127 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 [2022-11-25 22:26:48,170 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 [2022-11-25 22:26:48,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-25 22:26:48,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-25 22:26:48,342 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 [2022-11-25 22:26:48,385 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 [2022-11-25 22:26:48,411 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 [2022-11-25 22:26:48,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,485 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-25 22:26:48,486 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 [2022-11-25 22:26:48,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,576 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 22:26:48,576 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 [2022-11-25 22:26:48,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:48,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-25 22:26:48,848 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 [2022-11-25 22:26:48,853 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 [2022-11-25 22:26:48,858 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 16 treesize of output 12 [2022-11-25 22:26:48,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-25 22:26:48,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-25 22:26:48,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-25 22:26:48,927 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 [2022-11-25 22:26:48,933 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 [2022-11-25 22:26:48,940 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 [2022-11-25 22:26:49,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-25 22:26:49,061 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 [2022-11-25 22:26:49,084 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 [2022-11-25 22:26:49,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:49,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-25 22:26:49,370 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 [2022-11-25 22:26:49,390 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 [2022-11-25 22:26:52,327 INFO L217 Elim1Store]: Index analysis took 2498 ms [2022-11-25 22:26:56,586 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-25 22:26:56,587 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 9519777 treesize of output 9519796 [2022-11-25 22:26:57,763 INFO L217 Elim1Store]: Index analysis took 984 ms [2022-11-25 22:27:00,889 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-25 22:27:00,890 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 9519772 treesize of output 9519776