./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.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_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/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_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/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_230081d2-2dc6-49bf-99da-9c582502ee42/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 eb2eb63835edf753d5a467feb7a4cdd6d105155177d7d0cab8bf29c1b74dbaf6 --- 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 22:17:44,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:17:44,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:17:44,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:17:44,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:17:44,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:17:44,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:17:44,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:17:44,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:17:44,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:17:44,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:17:44,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:17:44,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:17:44,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:17:44,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:17:44,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:17:44,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:17:44,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:17:44,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:17:44,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:17:44,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:17:44,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:17:44,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:17:44,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:17:44,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:17:44,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:17:44,159 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:17:44,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:17:44,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:17:44,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:17:44,162 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:17:44,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:17:44,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:17:44,166 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:17:44,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:17:44,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:17:44,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:17:44,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:17:44,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:17:44,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:17:44,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:17:44,173 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 22:17:44,197 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:17:44,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:17:44,198 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:17:44,198 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:17:44,199 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:17:44,199 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:17:44,199 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:17:44,200 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:17:44,200 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:17:44,200 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:17:44,200 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:17:44,201 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:17:44,201 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:17:44,201 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:17:44,201 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:17:44,202 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:17:44,202 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:17:44,202 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:17:44,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:17:44,203 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:17:44,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:17:44,204 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:17:44,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:17:44,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:17:44,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:17:44,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:17:44,205 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:17:44,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:17:44,206 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:17:44,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:17:44,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:17:44,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:17:44,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:17:44,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:17:44,207 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:17:44,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:17:44,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:17:44,208 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:17:44,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:17:44,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:17:44,209 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:17:44,209 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_230081d2-2dc6-49bf-99da-9c582502ee42/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb2eb63835edf753d5a467feb7a4cdd6d105155177d7d0cab8bf29c1b74dbaf6 [2022-11-25 22:17:44,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:17:44,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:17:44,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:17:44,539 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:17:44,540 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:17:44,541 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i [2022-11-25 22:17:47,631 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:17:47,983 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:17:47,984 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i [2022-11-25 22:17:48,009 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/data/647d1272e/98d0a28a8aac41d59873979c2267f8bc/FLAGd51521ca1 [2022-11-25 22:17:48,232 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/data/647d1272e/98d0a28a8aac41d59873979c2267f8bc [2022-11-25 22:17:48,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:17:48,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:17:48,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:17:48,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:17:48,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:17:48,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:17:48" (1/1) ... [2022-11-25 22:17:48,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33c9fa1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:48, skipping insertion in model container [2022-11-25 22:17:48,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:17:48" (1/1) ... [2022-11-25 22:17:48,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:17:48,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:17:48,848 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_230081d2-2dc6-49bf-99da-9c582502ee42/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i[33021,33034] [2022-11-25 22:17:48,983 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:17:48,993 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_230081d2-2dc6-49bf-99da-9c582502ee42/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i[44590,44603] [2022-11-25 22:17:49,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:17:49,016 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:17:49,047 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_230081d2-2dc6-49bf-99da-9c582502ee42/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i[33021,33034] [2022-11-25 22:17:49,098 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:17:49,106 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_230081d2-2dc6-49bf-99da-9c582502ee42/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i[44590,44603] [2022-11-25 22:17:49,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:17:49,153 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:17:49,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:49 WrapperNode [2022-11-25 22:17:49,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:17:49,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:17:49,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:17:49,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:17:49,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:49" (1/1) ... [2022-11-25 22:17:49,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:49" (1/1) ... [2022-11-25 22:17:49,253 INFO L138 Inliner]: procedures = 177, calls = 285, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1022 [2022-11-25 22:17:49,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:17:49,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:17:49,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:17:49,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:17:49,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:49" (1/1) ... [2022-11-25 22:17:49,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:49" (1/1) ... [2022-11-25 22:17:49,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:49" (1/1) ... [2022-11-25 22:17:49,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:49" (1/1) ... [2022-11-25 22:17:49,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:49" (1/1) ... [2022-11-25 22:17:49,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:49" (1/1) ... [2022-11-25 22:17:49,379 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:49" (1/1) ... [2022-11-25 22:17:49,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:49" (1/1) ... [2022-11-25 22:17:49,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:17:49,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:17:49,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:17:49,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:17:49,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:49" (1/1) ... [2022-11-25 22:17:49,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:17:49,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:17:49,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:17:49,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:17:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:17:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:17:49,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:17:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:17:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 22:17:49,485 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 22:17:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:17:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:17:49,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:17:49,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:17:49,486 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 22:17:49,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:17:49,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:17:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:17:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:17:49,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:17:49,808 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:17:49,810 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:17:51,337 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:17:51,749 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:17:51,749 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-11-25 22:17:51,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:17:51 BoogieIcfgContainer [2022-11-25 22:17:51,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:17:51,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:17:51,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:17:51,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:17:51,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:17:48" (1/3) ... [2022-11-25 22:17:51,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f7498b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:17:51, skipping insertion in model container [2022-11-25 22:17:51,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:49" (2/3) ... [2022-11-25 22:17:51,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f7498b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:17:51, skipping insertion in model container [2022-11-25 22:17:51,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:17:51" (3/3) ... [2022-11-25 22:17:51,766 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test3-1.i [2022-11-25 22:17:51,786 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:17:51,786 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:17:51,853 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:17:51,860 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;@5e666a62, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:17:51,860 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:17:51,866 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 22:17:51,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:17:51,874 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:51,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:17:51,875 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:17:51,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:51,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1898435451, now seen corresponding path program 1 times [2022-11-25 22:17:51,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:17:51,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268158668] [2022-11-25 22:17:51,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:51,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:17:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:52,110 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 22:17:52,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:17:52,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268158668] [2022-11-25 22:17:52,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268158668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:17:52,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:17:52,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:17:52,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019967402] [2022-11-25 22:17:52,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:17:52,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:17:52,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:17:52,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:17:52,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:17:52,160 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 22:17:52,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:52,610 INFO L93 Difference]: Finished difference Result 245 states and 432 transitions. [2022-11-25 22:17:52,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:17:52,615 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 22:17:52,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:52,624 INFO L225 Difference]: With dead ends: 245 [2022-11-25 22:17:52,624 INFO L226 Difference]: Without dead ends: 122 [2022-11-25 22:17:52,627 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 22:17:52,631 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:52,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 22:17:52,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-11-25 22:17:52,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2022-11-25 22:17:52,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 116 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 22:17:52,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2022-11-25 22:17:52,680 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 8 [2022-11-25 22:17:52,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:52,680 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2022-11-25 22:17:52,680 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 22:17:52,681 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2022-11-25 22:17:52,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 22:17:52,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:52,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:17:52,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:17:52,682 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:17:52,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:52,683 INFO L85 PathProgramCache]: Analyzing trace with hash -94655351, now seen corresponding path program 1 times [2022-11-25 22:17:52,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:17:52,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351499563] [2022-11-25 22:17:52,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:52,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:17:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:52,885 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 22:17:52,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:17:52,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351499563] [2022-11-25 22:17:52,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351499563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:17:52,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:17:52,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:17:52,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132476265] [2022-11-25 22:17:52,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:17:52,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:17:52,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:17:52,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:17:52,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:17:52,899 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:17:55,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:17:55,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:55,280 INFO L93 Difference]: Finished difference Result 258 states and 326 transitions. [2022-11-25 22:17:55,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:17:55,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-25 22:17:55,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:55,288 INFO L225 Difference]: With dead ends: 258 [2022-11-25 22:17:55,288 INFO L226 Difference]: Without dead ends: 189 [2022-11-25 22:17:55,289 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 22:17:55,290 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 73 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:55,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 355 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-25 22:17:55,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-11-25 22:17:55,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 124. [2022-11-25 22:17:55,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 118 states have internal predecessors, (136), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 22:17:55,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2022-11-25 22:17:55,334 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 13 [2022-11-25 22:17:55,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:55,338 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2022-11-25 22:17:55,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:17:55,339 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2022-11-25 22:17:55,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-25 22:17:55,340 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:55,340 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] [2022-11-25 22:17:55,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:17:55,341 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:17:55,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:55,341 INFO L85 PathProgramCache]: Analyzing trace with hash 339208180, now seen corresponding path program 1 times [2022-11-25 22:17:55,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:17:55,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388523296] [2022-11-25 22:17:55,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:55,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:17:55,539 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:17:55,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [248140129] [2022-11-25 22:17:55,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:55,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:17:55,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:17:55,551 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:17:55,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:17:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:56,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 1630 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:17:56,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:56,468 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 22:17:56,468 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:17:56,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:17:56,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388523296] [2022-11-25 22:17:56,469 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:17:56,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248140129] [2022-11-25 22:17:56,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248140129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:17:56,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:17:56,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:17:56,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030091172] [2022-11-25 22:17:56,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:17:56,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:17:56,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:17:56,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:17:56,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:17:56,472 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:17:57,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:57,636 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2022-11-25 22:17:57,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:17:57,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-11-25 22:17:57,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:57,643 INFO L225 Difference]: With dead ends: 304 [2022-11-25 22:17:57,643 INFO L226 Difference]: Without dead ends: 183 [2022-11-25 22:17:57,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:17:57,645 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:57,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 278 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 22:17:57,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-25 22:17:57,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2022-11-25 22:17:57,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 155 states have (on average 1.1935483870967742) internal successors, (185), 161 states have internal predecessors, (185), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 22:17:57,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2022-11-25 22:17:57,663 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 37 [2022-11-25 22:17:57,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:57,664 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2022-11-25 22:17:57,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:17:57,664 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2022-11-25 22:17:57,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-25 22:17:57,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:57,666 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] [2022-11-25 22:17:57,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:57,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:17:57,879 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:17:57,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:57,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1571641394, now seen corresponding path program 1 times [2022-11-25 22:17:57,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:17:57,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973561845] [2022-11-25 22:17:57,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:57,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:17:57,971 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:17:57,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1443224988] [2022-11-25 22:17:57,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:57,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:17:57,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:17:57,982 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:17:57,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:17:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:58,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:17:58,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:58,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 22:17:58,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-25 22:17:58,674 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 22:17:58,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:17:58,675 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:17:58,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973561845] [2022-11-25 22:17:58,675 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:17:58,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443224988] [2022-11-25 22:17:58,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443224988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:17:58,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:17:58,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:17:58,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703462172] [2022-11-25 22:17:58,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:17:58,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:17:58,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:17:58,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:17:58,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:17:58,680 INFO L87 Difference]: Start difference. First operand 167 states and 201 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:18:00,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:18:00,409 INFO L93 Difference]: Finished difference Result 231 states and 285 transitions. [2022-11-25 22:18:00,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:18:00,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2022-11-25 22:18:00,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:18:00,414 INFO L225 Difference]: With dead ends: 231 [2022-11-25 22:18:00,414 INFO L226 Difference]: Without dead ends: 212 [2022-11-25 22:18:00,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:18:00,416 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 47 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:18:00,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 354 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-25 22:18:00,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-11-25 22:18:00,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 169. [2022-11-25 22:18:00,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 157 states have (on average 1.1910828025477707) internal successors, (187), 163 states have internal predecessors, (187), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 22:18:00,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2022-11-25 22:18:00,432 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 50 [2022-11-25 22:18:00,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:18:00,432 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2022-11-25 22:18:00,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:18:00,433 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2022-11-25 22:18:00,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-25 22:18:00,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:18:00,435 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 22:18:00,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:18:00,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:00,643 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:18:00,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:18:00,644 INFO L85 PathProgramCache]: Analyzing trace with hash 2144578966, now seen corresponding path program 1 times [2022-11-25 22:18:00,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:18:00,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527962522] [2022-11-25 22:18:00,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:00,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:18:00,715 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:18:00,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [315112038] [2022-11-25 22:18:00,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:00,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:00,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:18:00,717 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:18:00,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:18:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:01,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:18:01,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:01,428 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 22:18:01,428 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:18:01,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:18:01,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527962522] [2022-11-25 22:18:01,429 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:18:01,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315112038] [2022-11-25 22:18:01,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315112038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:18:01,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:18:01,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:18:01,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535040936] [2022-11-25 22:18:01,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:18:01,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:18:01,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:18:01,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:18:01,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:18:01,432 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:18:02,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:18:02,534 INFO L93 Difference]: Finished difference Result 395 states and 492 transitions. [2022-11-25 22:18:02,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:18:02,535 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 22:18:02,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:18:02,536 INFO L225 Difference]: With dead ends: 395 [2022-11-25 22:18:02,536 INFO L226 Difference]: Without dead ends: 242 [2022-11-25 22:18:02,537 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 22:18:02,538 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 260 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:18:02,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 290 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 22:18:02,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-11-25 22:18:02,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 214. [2022-11-25 22:18:02,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 202 states have (on average 1.193069306930693) internal successors, (241), 208 states have internal predecessors, (241), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 22:18:02,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2022-11-25 22:18:02,558 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 57 [2022-11-25 22:18:02,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:18:02,559 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2022-11-25 22:18:02,559 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 22:18:02,559 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2022-11-25 22:18:02,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-25 22:18:02,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:18:02,561 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 22:18:02,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:18:02,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:02,770 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:18:02,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:18:02,771 INFO L85 PathProgramCache]: Analyzing trace with hash 2121750984, now seen corresponding path program 1 times [2022-11-25 22:18:02,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:18:02,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625468541] [2022-11-25 22:18:02,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:02,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:18:02,841 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:18:02,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2128288719] [2022-11-25 22:18:02,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:02,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:02,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:18:02,843 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:18:02,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:18:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:15,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:18:15,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:15,612 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 22:18:15,612 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:18:15,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:18:15,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625468541] [2022-11-25 22:18:15,613 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:18:15,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128288719] [2022-11-25 22:18:15,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128288719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:18:15,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:18:15,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:18:15,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061459711] [2022-11-25 22:18:15,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:18:15,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:18:15,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:18:15,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:18:15,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:18:15,616 INFO L87 Difference]: Start difference. First operand 214 states and 257 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:18:16,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:18:16,673 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2022-11-25 22:18:16,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:18:16,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2022-11-25 22:18:16,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:18:16,681 INFO L225 Difference]: With dead ends: 411 [2022-11-25 22:18:16,681 INFO L226 Difference]: Without dead ends: 216 [2022-11-25 22:18:16,682 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 22:18:16,683 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 1 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:18:16,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 392 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 22:18:16,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-25 22:18:16,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2022-11-25 22:18:16,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 203 states have (on average 1.1970443349753694) internal successors, (243), 210 states have internal predecessors, (243), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2022-11-25 22:18:16,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 260 transitions. [2022-11-25 22:18:16,709 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 260 transitions. Word has length 64 [2022-11-25 22:18:16,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:18:16,710 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 260 transitions. [2022-11-25 22:18:16,710 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:18:16,710 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 260 transitions. [2022-11-25 22:18:16,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-25 22:18:16,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:18:16,713 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 22:18:16,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:18:16,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:16,938 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:18:16,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:18:16,939 INFO L85 PathProgramCache]: Analyzing trace with hash -869473738, now seen corresponding path program 1 times [2022-11-25 22:18:16,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:18:16,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646785220] [2022-11-25 22:18:16,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:16,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:18:17,007 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:18:17,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1295370552] [2022-11-25 22:18:17,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:17,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:17,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:18:17,023 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:18:17,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230081d2-2dc6-49bf-99da-9c582502ee42/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 22:18:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:56,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:18:56,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:56,618 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 22:18:56,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:18:56,733 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 22:18:56,733 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:18:56,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646785220] [2022-11-25 22:18:56,734 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:18:56,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295370552] [2022-11-25 22:18:56,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295370552] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:18:56,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [124903432] [2022-11-25 22:18:56,756 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-11-25 22:18:56,756 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:18:56,760 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:18:56,765 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:18:56,766 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:18:56,936 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 22:18:56,942 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 22:18:56,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:56,964 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 22:18:56,965 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 22:18:56,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:56,978 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 22:18:56,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,006 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 22:18:57,007 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 22:18:57,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,063 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:18:57,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2022-11-25 22:18:57,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,112 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 22:18:57,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-25 22:18:57,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,140 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 22:18:57,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,191 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:18:57,191 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 22:18:57,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,214 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 22:18:57,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,645 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 22:18:57,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,704 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 9897007 treesize of output 5376300 [2022-11-25 22:18:57,748 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 22:18:57,770 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 22:18:57,810 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 22:18:57,824 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 22:18:57,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,890 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 22:18:57,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,953 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 22:18:58,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,070 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 22:18:58,114 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 22:18:58,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,188 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-25 22:18:58,188 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 22:18:58,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,285 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 22:18:58,285 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 22:18:58,320 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 22:18:58,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 22:18:58,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 22:18:58,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 22:18:58,548 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:18:58,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-11-25 22:18:58,580 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-25 22:18:58,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-11-25 22:18:58,616 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:18:58,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-11-25 22:18:58,687 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 22:18:58,693 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 22:18:58,701 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 22:18:58,785 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 22:18:58,810 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 22:18:58,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:58,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 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 22:18:59,059 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 22:18:59,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:59,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:59,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:59,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:59,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:59,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:59,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:59,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:59,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:59,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:59,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:59,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:59,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:59,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:59,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:59,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 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 22:18:59,141 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 22:19:00,334 INFO L217 Elim1Store]: Index analysis took 786 ms [2022-11-25 22:19:05,143 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-25 22:19:05,144 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 22:19:06,256 INFO L217 Elim1Store]: Index analysis took 908 ms [2022-11-25 22:19:06,869 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-25 22:19:06,879 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 [2022-11-25 22:19:16,868 WARN L233 SmtUtils]: Spent 9.87s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:19:16,869 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-25 22:19:16,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1476 [2022-11-25 22:19:17,255 INFO L217 Elim1Store]: Index analysis took 141 ms [2022-11-25 22:19:42,808 WARN L233 SmtUtils]: Spent 25.55s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:19:42,809 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-25 22:19:42,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1834 [2022-11-25 22:19:44,737 INFO L217 Elim1Store]: Index analysis took 1326 ms [2022-11-25 22:20:13,503 WARN L233 SmtUtils]: Spent 27.77s on a formula simplification. DAG size of input: 258 DAG size of output: 156 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:20:13,504 INFO L321 Elim1Store]: treesize reduction 13218, result has 27.3 percent of original size [2022-11-25 22:20:13,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 3622 treesize of output 7921 [2022-11-25 22:20:15,279 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:20:15,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 69 [2022-11-25 22:20:15,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:15,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:15,507 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:20:15,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 55 [2022-11-25 22:20:16,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:16,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2022-11-25 22:20:16,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:16,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-11-25 22:20:20,519 INFO L321 Elim1Store]: treesize reduction 550, result has 14.1 percent of original size [2022-11-25 22:20:20,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 14 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 16 new quantified variables, introduced 18 case distinctions, treesize of input 51016 treesize of output 53256 [2022-11-25 22:20:29,540 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 22:20:30,227 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 22:20:30,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40846 treesize of output 40854 [2022-11-25 22:20:31,236 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 22:20:38,923 WARN L233 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 45 DAG size of output: 37 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:20:38,924 INFO L321 Elim1Store]: treesize reduction 185, result has 49.9 percent of original size [2022-11-25 22:20:38,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 66514 treesize of output 65984 [2022-11-25 22:20:40,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43142 treesize of output 43102 [2022-11-25 22:20:42,099 INFO L321 Elim1Store]: treesize reduction 17, result has 48.5 percent of original size [2022-11-25 22:20:42,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40846 treesize of output 40828 [2022-11-25 22:20:43,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-11-25 22:20:45,669 INFO L321 Elim1Store]: treesize reduction 45, result has 49.4 percent of original size [2022-11-25 22:20:45,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56608 treesize of output 56496 [2022-11-25 22:21:19,062 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:19,459 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:19,460 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:19,663 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:20,700 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:22,453 INFO L217 Elim1Store]: Index analysis took 6355 ms [2022-11-25 22:21:22,455 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:22,456 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:22,457 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:22,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:22,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:22,459 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:22,460 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:22,461 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:22,462 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:22,463 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:22,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 545 treesize of output 4453 [2022-11-25 22:21:22,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-11-25 22:21:24,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:27,982 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:29,583 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:29,821 INFO L217 Elim1Store]: Index analysis took 6477 ms [2022-11-25 22:21:29,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:29,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:29,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:29,825 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:29,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:29,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:29,828 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:29,828 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:29,829 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:29,830 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:29,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2247 [2022-11-25 22:21:31,012 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:31,110 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:34,108 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:34,841 INFO L217 Elim1Store]: Index analysis took 4727 ms [2022-11-25 22:21:34,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:34,843 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:34,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:34,845 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:34,846 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:34,847 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:34,848 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:34,848 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:34,849 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:34,850 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:34,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2257 [2022-11-25 22:21:35,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:21:35,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:21:35,300 INFO L217 Elim1Store]: Index analysis took 105 ms [2022-11-25 22:21:35,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2022-11-25 22:21:36,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:21:36,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:21:36,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:38,407 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:38,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:21:38,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:21:38,925 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:39,351 INFO L217 Elim1Store]: Index analysis took 3605 ms [2022-11-25 22:21:39,352 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:39,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:39,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:39,355 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:39,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:39,357 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:39,357 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:39,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:39,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:39,360 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:39,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2269 [2022-11-25 22:21:39,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:21:39,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:21:39,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 26 [2022-11-25 22:21:40,136 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 22:21:41,769 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:41,895 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:42,306 INFO L217 Elim1Store]: Index analysis took 2088 ms [2022-11-25 22:21:42,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:42,311 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:42,316 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:42,317 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:42,318 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:42,319 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:42,321 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:42,322 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:42,323 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:42,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 16 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 40009 treesize of output 43909 [2022-11-25 22:21:47,944 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:52,273 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:53,715 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:53,920 INFO L217 Elim1Store]: Index analysis took 7063 ms [2022-11-25 22:21:53,921 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:53,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:53,923 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:53,926 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:53,927 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:53,928 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:53,928 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:53,930 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:53,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:53,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:53,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2215 [2022-11-25 22:21:54,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:21:54,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:21:54,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 194 [2022-11-25 22:21:54,594 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 22:21:59,570 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:59,694 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:59,695 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:21:59,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:00,939 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:01,173 INFO L217 Elim1Store]: Index analysis took 6399 ms [2022-11-25 22:22:01,174 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:01,175 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:01,176 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:01,177 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:01,178 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:01,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:01,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:01,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:01,181 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:01,182 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:01,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 507 treesize of output 3942 [2022-11-25 22:22:01,531 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 22:22:02,923 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:06,802 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:07,206 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:07,982 INFO L217 Elim1Store]: Index analysis took 6166 ms [2022-11-25 22:22:07,983 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:07,985 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:07,986 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:07,987 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:07,989 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:07,989 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:07,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:07,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:07,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:07,993 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:07,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2247 [2022-11-25 22:22:08,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:22:08,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:22:08,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 54 [2022-11-25 22:22:09,740 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:09,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:10,125 INFO L217 Elim1Store]: Index analysis took 1493 ms [2022-11-25 22:22:10,128 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:10,129 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:10,129 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:10,130 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:10,131 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:10,132 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:10,133 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:10,134 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:10,134 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:10,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 16 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 34295 treesize of output 38205 [2022-11-25 22:22:24,068 INFO L217 Elim1Store]: Index analysis took 8970 ms [2022-11-25 22:22:25,483 INFO L321 Elim1Store]: treesize reduction 538, result has 3.8 percent of original size [2022-11-25 22:22:25,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 14 case distinctions, treesize of input 403 treesize of output 2354 [2022-11-25 22:22:25,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:22:25,921 INFO L217 Elim1Store]: Index analysis took 255 ms [2022-11-25 22:22:26,385 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 22:22:26,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 79 [2022-11-25 22:22:26,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:22:26,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:22:26,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2022-11-25 22:22:31,702 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:34,099 INFO L217 Elim1Store]: Index analysis took 7134 ms [2022-11-25 22:22:35,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 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 316 treesize of output 2350 [2022-11-25 22:22:35,435 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:36,367 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:36,988 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:44,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:44,928 INFO L217 Elim1Store]: Index analysis took 9494 ms [2022-11-25 22:22:44,930 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:44,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:44,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:44,934 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:44,935 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:44,936 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:44,937 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:44,938 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:44,940 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:44,941 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:44,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1409 treesize of output 3388 [2022-11-25 22:22:45,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:22:45,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:22:45,416 INFO L217 Elim1Store]: Index analysis took 246 ms [2022-11-25 22:22:45,905 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 22:22:45,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 1093 treesize of output 919 [2022-11-25 22:22:46,384 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 22:22:47,112 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:49,279 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:52,702 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:22:59,767 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:02,129 INFO L217 Elim1Store]: Index analysis took 15017 ms [2022-11-25 22:23:02,130 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:02,131 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:02,132 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:02,134 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:02,135 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:02,136 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:02,137 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:02,138 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:02,139 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:02,140 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:02,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 573 treesize of output 2471 [2022-11-25 22:23:02,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:23:03,045 INFO L217 Elim1Store]: Index analysis took 361 ms [2022-11-25 22:23:03,827 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 22:23:03,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 257 treesize of output 221 [2022-11-25 22:23:04,254 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 22:23:05,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:23:05,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:23:06,112 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:07,891 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:07,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:23:07,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:23:08,112 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:08,519 INFO L217 Elim1Store]: Index analysis took 4020 ms [2022-11-25 22:23:08,520 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:08,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:08,522 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:08,523 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:08,524 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:08,524 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:08,525 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:08,526 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:08,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:08,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:08,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 2287 [2022-11-25 22:23:08,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2022-11-25 22:23:09,168 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 22:24:31,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:24:33,735 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:24:34,116 INFO L217 Elim1Store]: Index analysis took 2543 ms [2022-11-25 22:24:34,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 15 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1905 treesize of output 16050 [2022-11-25 22:24:35,816 INFO L217 Elim1Store]: Index analysis took 503 ms [2022-11-25 22:26:31,676 WARN L233 SmtUtils]: Spent 1.93m on a formula simplification. DAG size of input: 222 DAG size of output: 42 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:26:31,679 INFO L321 Elim1Store]: treesize reduction 1365, result has 5.7 percent of original size [2022-11-25 22:26:31,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 38 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 33 new quantified variables, introduced 68 case distinctions, treesize of input 5645 treesize of output 94048