./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh --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 b06fba6fbf61d996c1af57497d908c6dba492febf0212a36ee7b28f5806d365e --- 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-2329fc7 [2022-12-14 13:47:26,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:47:26,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:47:26,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:47:26,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:47:26,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:47:26,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:47:26,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:47:26,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:47:26,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:47:26,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:47:26,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:47:26,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:47:26,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:47:26,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:47:26,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:47:26,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:47:26,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:47:26,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:47:26,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:47:26,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:47:26,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:47:26,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:47:26,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:47:26,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:47:26,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:47:26,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:47:26,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:47:26,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:47:26,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:47:26,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:47:26,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:47:26,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:47:26,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:47:26,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:47:26,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:47:26,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:47:26,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:47:26,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:47:26,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:47:26,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:47:26,216 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 13:47:26,230 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:47:26,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:47:26,230 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:47:26,231 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:47:26,231 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:47:26,231 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:47:26,231 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:47:26,232 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:47:26,232 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:47:26,232 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:47:26,232 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:47:26,232 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:47:26,232 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:47:26,232 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:47:26,232 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:47:26,232 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:47:26,233 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:47:26,233 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:47:26,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:47:26,233 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:47:26,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:47:26,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:47:26,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:47:26,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:47:26,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:47:26,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:47:26,234 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:47:26,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:47:26,234 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:47:26,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:47:26,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:47:26,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:47:26,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:47:26,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:47:26,235 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:47:26,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:47:26,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:47:26,235 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:47:26,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:47:26,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:47:26,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:47:26,236 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_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b06fba6fbf61d996c1af57497d908c6dba492febf0212a36ee7b28f5806d365e [2022-12-14 13:47:26,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:47:26,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:47:26,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:47:26,439 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:47:26,440 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:47:26,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-1.i [2022-12-14 13:47:29,034 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:47:29,286 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:47:29,287 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-1.i [2022-12-14 13:47:29,300 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/data/b1c009976/22ab4ec3f5ed44a48b1bc4e4fa7dec7c/FLAGebed6b572 [2022-12-14 13:47:29,311 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/data/b1c009976/22ab4ec3f5ed44a48b1bc4e4fa7dec7c [2022-12-14 13:47:29,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:47:29,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:47:29,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:47:29,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:47:29,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:47:29,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:47:29" (1/1) ... [2022-12-14 13:47:29,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@552976d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:29, skipping insertion in model container [2022-12-14 13:47:29,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:47:29" (1/1) ... [2022-12-14 13:47:29,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:47:29,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:47:29,705 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_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-1.i[33022,33035] [2022-12-14 13:47:29,808 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:47:29,823 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:47:29,840 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:47:29,850 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:47:29,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:47:29,865 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:47:29,885 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_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-1.i[33022,33035] [2022-12-14 13:47:29,920 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:47:29,927 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:47:29,934 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:47:29,941 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:47:29,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:47:29,980 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:47:29,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:29 WrapperNode [2022-12-14 13:47:29,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:47:29,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:47:29,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:47:29,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:47:29,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:29" (1/1) ... [2022-12-14 13:47:30,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:29" (1/1) ... [2022-12-14 13:47:30,068 INFO L138 Inliner]: procedures = 177, calls = 524, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2167 [2022-12-14 13:47:30,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:47:30,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:47:30,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:47:30,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:47:30,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:29" (1/1) ... [2022-12-14 13:47:30,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:29" (1/1) ... [2022-12-14 13:47:30,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:29" (1/1) ... [2022-12-14 13:47:30,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:29" (1/1) ... [2022-12-14 13:47:30,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:29" (1/1) ... [2022-12-14 13:47:30,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:29" (1/1) ... [2022-12-14 13:47:30,136 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:29" (1/1) ... [2022-12-14 13:47:30,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:29" (1/1) ... [2022-12-14 13:47:30,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:47:30,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:47:30,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:47:30,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:47:30,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:29" (1/1) ... [2022-12-14 13:47:30,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:47:30,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:47:30,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:47:30,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:47:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2022-12-14 13:47:30,201 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2022-12-14 13:47:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 13:47:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 13:47:30,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 13:47:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 13:47:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 13:47:30,202 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 13:47:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 13:47:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:47:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 13:47:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:47:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 13:47:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 13:47:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:47:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:47:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:47:30,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:47:30,406 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:47:30,408 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:47:32,046 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:47:32,496 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:47:32,496 INFO L300 CfgBuilder]: Removed 151 assume(true) statements. [2022-12-14 13:47:32,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:47:32 BoogieIcfgContainer [2022-12-14 13:47:32,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:47:32,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:47:32,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:47:32,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:47:32,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:47:29" (1/3) ... [2022-12-14 13:47:32,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27317f2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:47:32, skipping insertion in model container [2022-12-14 13:47:32,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:29" (2/3) ... [2022-12-14 13:47:32,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27317f2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:47:32, skipping insertion in model container [2022-12-14 13:47:32,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:47:32" (3/3) ... [2022-12-14 13:47:32,506 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test10-1.i [2022-12-14 13:47:32,524 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:47:32,524 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 13:47:32,570 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:47:32,575 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;@25a1763b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:47:32,576 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 13:47:32,580 INFO L276 IsEmpty]: Start isEmpty. Operand has 251 states, 232 states have (on average 1.8275862068965518) internal successors, (424), 237 states have internal predecessors, (424), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 13:47:32,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 13:47:32,587 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:47:32,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:47:32,588 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:47:32,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:47:32,592 INFO L85 PathProgramCache]: Analyzing trace with hash 186147916, now seen corresponding path program 1 times [2022-12-14 13:47:32,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:47:32,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882241616] [2022-12-14 13:47:32,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:47:32,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:47:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:47:32,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:47:32,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:47:32,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882241616] [2022-12-14 13:47:32,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882241616] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:47:32,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:47:32,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:47:32,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641231899] [2022-12-14 13:47:32,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:47:32,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:47:32,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:47:32,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:47:32,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:47:32,789 INFO L87 Difference]: Start difference. First operand has 251 states, 232 states have (on average 1.8275862068965518) internal successors, (424), 237 states have internal predecessors, (424), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:47:34,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 13:47:34,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:47:34,204 INFO L93 Difference]: Finished difference Result 501 states and 911 transitions. [2022-12-14 13:47:34,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:47:34,206 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-14 13:47:34,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:47:34,213 INFO L225 Difference]: With dead ends: 501 [2022-12-14 13:47:34,213 INFO L226 Difference]: Without dead ends: 249 [2022-12-14 13:47:34,215 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 [2022-12-14 13:47:34,217 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 13:47:34,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 279 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 13:47:34,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-12-14 13:47:34,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2022-12-14 13:47:34,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 231 states have (on average 1.199134199134199) internal successors, (277), 236 states have internal predecessors, (277), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 13:47:34,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 304 transitions. [2022-12-14 13:47:34,253 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 304 transitions. Word has length 12 [2022-12-14 13:47:34,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:47:34,253 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 304 transitions. [2022-12-14 13:47:34,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:47:34,253 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 304 transitions. [2022-12-14 13:47:34,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 13:47:34,254 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:47:34,254 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:47:34,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:47:34,255 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:47:34,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:47:34,255 INFO L85 PathProgramCache]: Analyzing trace with hash -411884708, now seen corresponding path program 1 times [2022-12-14 13:47:34,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:47:34,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982108208] [2022-12-14 13:47:34,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:47:34,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:47:34,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:47:34,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:47:34,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:47:34,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982108208] [2022-12-14 13:47:34,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982108208] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:47:34,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:47:34,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:47:34,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344923207] [2022-12-14 13:47:34,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:47:34,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:47:34,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:47:34,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:47:34,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:47:34,543 INFO L87 Difference]: Start difference. First operand 249 states and 304 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:47:38,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 13:47:39,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 13:47:40,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 13:47:40,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:47:40,549 INFO L93 Difference]: Finished difference Result 425 states and 521 transitions. [2022-12-14 13:47:40,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:47:40,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-12-14 13:47:40,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:47:40,551 INFO L225 Difference]: With dead ends: 425 [2022-12-14 13:47:40,552 INFO L226 Difference]: Without dead ends: 276 [2022-12-14 13:47:40,553 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 [2022-12-14 13:47:40,554 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 27 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:47:40,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 766 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-12-14 13:47:40,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-12-14 13:47:40,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 251. [2022-12-14 13:47:40,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 233 states have (on average 1.1974248927038627) internal successors, (279), 238 states have internal predecessors, (279), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 13:47:40,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 306 transitions. [2022-12-14 13:47:40,571 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 306 transitions. Word has length 24 [2022-12-14 13:47:40,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:47:40,571 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 306 transitions. [2022-12-14 13:47:40,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:47:40,572 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 306 transitions. [2022-12-14 13:47:40,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-14 13:47:40,573 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:47:40,574 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:47:40,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:47:40,574 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:47:40,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:47:40,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1069160593, now seen corresponding path program 1 times [2022-12-14 13:47:40,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:47:40,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759840095] [2022-12-14 13:47:40,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:47:40,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:47:40,678 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 13:47:40,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [914695895] [2022-12-14 13:47:40,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:47:40,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:47:40,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:47:40,680 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:47:40,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 13:47:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:47:41,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 1687 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 13:47:41,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:47:41,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:47:41,314 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:47:41,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:47:41,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759840095] [2022-12-14 13:47:41,314 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 13:47:41,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914695895] [2022-12-14 13:47:41,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914695895] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:47:41,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:47:41,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:47:41,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374955044] [2022-12-14 13:47:41,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:47:41,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:47:41,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:47:41,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:47:41,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:47:41,317 INFO L87 Difference]: Start difference. First operand 251 states and 306 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:47:43,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 13:47:43,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:47:43,808 INFO L93 Difference]: Finished difference Result 614 states and 746 transitions. [2022-12-14 13:47:43,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:47:43,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-12-14 13:47:43,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:47:43,811 INFO L225 Difference]: With dead ends: 614 [2022-12-14 13:47:43,811 INFO L226 Difference]: Without dead ends: 366 [2022-12-14 13:47:43,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:47:43,813 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 119 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 13:47:43,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 547 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 13:47:43,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-12-14 13:47:43,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 362. [2022-12-14 13:47:43,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 339 states have (on average 1.1799410029498525) internal successors, (400), 344 states have internal predecessors, (400), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-12-14 13:47:43,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 437 transitions. [2022-12-14 13:47:43,835 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 437 transitions. Word has length 49 [2022-12-14 13:47:43,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:47:43,836 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 437 transitions. [2022-12-14 13:47:43,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:47:43,836 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 437 transitions. [2022-12-14 13:47:43,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-14 13:47:43,838 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:47:43,838 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] [2022-12-14 13:47:43,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:47:44,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:47:44,041 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:47:44,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:47:44,043 INFO L85 PathProgramCache]: Analyzing trace with hash -2087688826, now seen corresponding path program 1 times [2022-12-14 13:47:44,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:47:44,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674412814] [2022-12-14 13:47:44,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:47:44,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:47:44,098 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 13:47:44,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1478645282] [2022-12-14 13:47:44,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:47:44,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:47:44,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:47:44,100 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:47:44,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 13:47:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:47:44,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 824 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 13:47:44,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:47:44,548 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 [2022-12-14 13:47:44,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:47:44,579 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 [2022-12-14 13:47:44,590 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 13:47:44,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:47:44,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:47:44,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674412814] [2022-12-14 13:47:44,591 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 13:47:44,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478645282] [2022-12-14 13:47:44,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478645282] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:47:44,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:47:44,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:47:44,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643442657] [2022-12-14 13:47:44,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:47:44,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:47:44,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:47:44,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:47:44,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:47:44,594 INFO L87 Difference]: Start difference. First operand 362 states and 437 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 13:47:47,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 13:47:48,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 13:47:48,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:47:48,810 INFO L93 Difference]: Finished difference Result 674 states and 815 transitions. [2022-12-14 13:47:48,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:47:48,811 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 62 [2022-12-14 13:47:48,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:47:48,812 INFO L225 Difference]: With dead ends: 674 [2022-12-14 13:47:48,812 INFO L226 Difference]: Without dead ends: 362 [2022-12-14 13:47:48,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:47:48,813 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 13 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:47:48,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 768 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-12-14 13:47:48,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-12-14 13:47:48,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2022-12-14 13:47:48,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 339 states have (on average 1.176991150442478) internal successors, (399), 344 states have internal predecessors, (399), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-12-14 13:47:48,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 436 transitions. [2022-12-14 13:47:48,824 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 436 transitions. Word has length 62 [2022-12-14 13:47:48,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:47:48,824 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 436 transitions. [2022-12-14 13:47:48,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 13:47:48,824 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 436 transitions. [2022-12-14 13:47:48,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 13:47:48,825 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:47:48,825 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:47:48,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 13:47:49,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:47:49,028 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:47:49,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:47:49,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1562940522, now seen corresponding path program 1 times [2022-12-14 13:47:49,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:47:49,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987249267] [2022-12-14 13:47:49,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:47:49,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:47:49,183 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 13:47:49,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [208801377] [2022-12-14 13:47:49,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:47:49,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:47:49,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:47:49,184 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:47:49,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 13:47:49,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:47:49,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 2300 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 13:47:49,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:47:49,954 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 13:47:49,954 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:47:49,955 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:47:49,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987249267] [2022-12-14 13:47:49,955 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 13:47:49,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208801377] [2022-12-14 13:47:49,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208801377] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:47:49,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:47:49,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:47:49,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773492259] [2022-12-14 13:47:49,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:47:49,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:47:49,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:47:49,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:47:49,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:47:49,956 INFO L87 Difference]: Start difference. First operand 362 states and 436 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 13:47:52,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 13:47:52,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:47:52,463 INFO L93 Difference]: Finished difference Result 820 states and 988 transitions. [2022-12-14 13:47:52,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:47:52,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2022-12-14 13:47:52,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:47:52,465 INFO L225 Difference]: With dead ends: 820 [2022-12-14 13:47:52,465 INFO L226 Difference]: Without dead ends: 484 [2022-12-14 13:47:52,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:47:52,466 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 110 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 13:47:52,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 531 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 13:47:52,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2022-12-14 13:47:52,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 429. [2022-12-14 13:47:52,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 403 states have (on average 1.1687344913151365) internal successors, (471), 408 states have internal predecessors, (471), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2022-12-14 13:47:52,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 514 transitions. [2022-12-14 13:47:52,495 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 514 transitions. Word has length 83 [2022-12-14 13:47:52,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:47:52,495 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 514 transitions. [2022-12-14 13:47:52,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 13:47:52,496 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 514 transitions. [2022-12-14 13:47:52,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-14 13:47:52,497 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:47:52,498 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:47:52,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 13:47:52,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:47:52,699 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:47:52,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:47:52,701 INFO L85 PathProgramCache]: Analyzing trace with hash -2006888177, now seen corresponding path program 1 times [2022-12-14 13:47:52,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:47:52,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742794313] [2022-12-14 13:47:52,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:47:52,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:47:52,837 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 13:47:52,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1645833824] [2022-12-14 13:47:52,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:47:52,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:47:52,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:47:52,838 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:47:52,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 13:47:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:47:53,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 1437 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 13:47:53,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:47:53,484 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 13:47:53,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:47:53,485 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:47:53,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742794313] [2022-12-14 13:47:53,485 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 13:47:53,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645833824] [2022-12-14 13:47:53,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645833824] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:47:53,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:47:53,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:47:53,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943438356] [2022-12-14 13:47:53,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:47:53,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:47:53,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:47:53,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:47:53,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:47:53,486 INFO L87 Difference]: Start difference. First operand 429 states and 514 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 13:47:55,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:47:55,144 INFO L93 Difference]: Finished difference Result 719 states and 867 transitions. [2022-12-14 13:47:55,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:47:55,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 96 [2022-12-14 13:47:55,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:47:55,147 INFO L225 Difference]: With dead ends: 719 [2022-12-14 13:47:55,147 INFO L226 Difference]: Without dead ends: 351 [2022-12-14 13:47:55,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:47:55,148 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 438 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 13:47:55,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 329 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 13:47:55,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-12-14 13:47:55,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2022-12-14 13:47:55,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 330 states have (on average 1.1666666666666667) internal successors, (385), 335 states have internal predecessors, (385), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 13:47:55,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 418 transitions. [2022-12-14 13:47:55,160 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 418 transitions. Word has length 96 [2022-12-14 13:47:55,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:47:55,160 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 418 transitions. [2022-12-14 13:47:55,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 13:47:55,161 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 418 transitions. [2022-12-14 13:47:55,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-14 13:47:55,161 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:47:55,161 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:47:55,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 13:47:55,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 13:47:55,363 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:47:55,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:47:55,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1640234627, now seen corresponding path program 1 times [2022-12-14 13:47:55,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:47:55,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974042057] [2022-12-14 13:47:55,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:47:55,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:47:55,461 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 13:47:55,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1129846759] [2022-12-14 13:47:55,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:47:55,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:47:55,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:47:55,462 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:47:55,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 13:48:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:48:47,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 13:48:47,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:48:47,359 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 13:48:47,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:48:47,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:48:47,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974042057] [2022-12-14 13:48:47,359 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 13:48:47,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129846759] [2022-12-14 13:48:47,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129846759] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:48:47,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:48:47,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:48:47,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165132381] [2022-12-14 13:48:47,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:48:47,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:48:47,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:48:47,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:48:47,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:48:47,361 INFO L87 Difference]: Start difference. First operand 351 states and 418 transitions. Second operand has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 13:48:49,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 13:48:50,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:48:50,929 INFO L93 Difference]: Finished difference Result 684 states and 823 transitions. [2022-12-14 13:48:50,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:48:50,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 103 [2022-12-14 13:48:50,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:48:50,932 INFO L225 Difference]: With dead ends: 684 [2022-12-14 13:48:50,932 INFO L226 Difference]: Without dead ends: 353 [2022-12-14 13:48:50,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:48:50,933 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 1 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 13:48:50,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 812 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 13:48:50,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-12-14 13:48:50,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2022-12-14 13:48:50,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 331 states have (on average 1.1691842900302114) internal successors, (387), 337 states have internal predecessors, (387), 17 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (19), 13 states have call predecessors, (19), 16 states have call successors, (19) [2022-12-14 13:48:50,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 423 transitions. [2022-12-14 13:48:50,945 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 423 transitions. Word has length 103 [2022-12-14 13:48:50,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:48:50,945 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 423 transitions. [2022-12-14 13:48:50,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 13:48:50,945 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 423 transitions. [2022-12-14 13:48:50,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-12-14 13:48:50,946 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:48:50,946 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:48:50,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 13:48:51,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:48:51,148 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:48:51,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:48:51,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1510272397, now seen corresponding path program 1 times [2022-12-14 13:48:51,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:48:51,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802321304] [2022-12-14 13:48:51,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:48:51,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:48:51,247 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 13:48:51,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [988409604] [2022-12-14 13:48:51,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:48:51,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:48:51,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:48:51,248 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:48:51,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e83c01-10a6-488a-8bfd-fc79f5c9fa19/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 13:51:44,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:51:44,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 1523 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 13:51:44,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:51:44,883 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 13:51:44,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:51:44,959 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 13:51:44,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:51:44,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802321304] [2022-12-14 13:51:44,959 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 13:51:44,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988409604] [2022-12-14 13:51:44,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988409604] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:51:44,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [600411174] [2022-12-14 13:51:44,978 INFO L159 IcfgInterpreter]: Started Sifa with 93 locations of interest [2022-12-14 13:51:44,978 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:51:44,981 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:51:44,985 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:51:44,985 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:51:45,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,173 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 [2022-12-14 13:51:45,180 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 [2022-12-14 13:51:45,184 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 [2022-12-14 13:51:45,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,201 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 13:51:45,201 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 [2022-12-14 13:51:45,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,221 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 13:51:45,222 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 [2022-12-14 13:51:45,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,254 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 [2022-12-14 13:51:45,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,285 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 13:51:45,285 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 [2022-12-14 13:51:45,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,318 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 13:51:45,319 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 [2022-12-14 13:51:45,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-12-14 13:51:45,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,351 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 [2022-12-14 13:51:45,625 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 [2022-12-14 13:51:45,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,667 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 9897016 treesize of output 5376291 [2022-12-14 13:51:45,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,708 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 [2022-12-14 13:51:45,741 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 [2022-12-14 13:51:45,768 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 [2022-12-14 13:51:45,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,824 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 9897022 treesize of output 5376303 [2022-12-14 13:51:45,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,866 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 [2022-12-14 13:51:45,899 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 [2022-12-14 13:51:45,928 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 [2022-12-14 13:51:45,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:45,960 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 [2022-12-14 13:51:45,992 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 [2022-12-14 13:51:46,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,049 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 13:51:46,049 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 [2022-12-14 13:51:46,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,116 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 13:51:46,116 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 [2022-12-14 13:51:46,259 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 [2022-12-14 13:51:46,263 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 [2022-12-14 13:51:46,268 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 [2022-12-14 13:51:46,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-12-14 13:51:46,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-12-14 13:51:46,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-12-14 13:51:46,321 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 [2022-12-14 13:51:46,325 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 [2022-12-14 13:51:46,331 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 [2022-12-14 13:51:46,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-12-14 13:51:46,422 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 [2022-12-14 13:51:46,435 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 [2022-12-14 13:51:46,570 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 [2022-12-14 13:51:46,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:51:46,599 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 [2022-12-14 13:51:46,614 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 [2022-12-14 13:51:49,869 INFO L217 Elim1Store]: Index analysis took 2983 ms [2022-12-14 13:51:53,593 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-12-14 13:51:53,594 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 9519789 treesize of output 9519808 [2022-12-14 13:51:54,320 INFO L217 Elim1Store]: Index analysis took 585 ms [2022-12-14 13:51:54,861 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-12-14 13:51:54,862 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 9519784 treesize of output 9519788 [2022-12-14 13:52:03,155 WARN L233 SmtUtils]: Spent 8.20s 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) [2022-12-14 13:52:03,155 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-12-14 13:52:03,156 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 [2022-12-14 13:52:03,456 INFO L217 Elim1Store]: Index analysis took 113 ms [2022-12-14 13:52:23,067 WARN L233 SmtUtils]: Spent 19.61s 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) [2022-12-14 13:52:23,068 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-12-14 13:52:23,068 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 4133 treesize of output 3952 [2022-12-14 13:52:26,215 INFO L217 Elim1Store]: Index analysis took 698 ms [2022-12-14 13:52:55,537 WARN L233 SmtUtils]: Spent 28.77s on a formula simplification. DAG size of input: 261 DAG size of output: 159 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 13:52:55,538 INFO L321 Elim1Store]: treesize reduction 22290, result has 25.6 percent of original size [2022-12-14 13:52:55,538 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 5638 treesize of output 15985 [2022-12-14 13:52:56,254 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:52:56,255 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 [2022-12-14 13:52:56,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:52:56,342 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:52:56,343 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 [2022-12-14 13:52:56,587 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:52:56,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:52:56,731 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:52:56,732 INFO L217 Elim1Store]: Index analysis took 105 ms [2022-12-14 13:52:56,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 245 [2022-12-14 13:52:57,059 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:52:57,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:52:57,173 INFO L217 Elim1Store]: Index analysis took 342 ms [2022-12-14 13:52:57,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 35 treesize of output 50 [2022-12-14 13:52:57,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:52:57,407 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:52:57,408 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 38 treesize of output 28 [2022-12-14 13:52:57,456 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 13:52:58,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:52:58,274 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 [2022-12-14 13:52:58,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:52:58,321 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 [2022-12-14 13:52:58,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:52:58,562 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 [2022-12-14 13:52:58,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:52:58,626 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 [2022-12-14 13:52:58,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:52:58,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:52:58,930 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 24 treesize of output 14 [2022-12-14 13:52:59,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:52:59,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:52:59,958 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 24 treesize of output 14 [2022-12-14 13:53:04,554 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 13:53:04,577 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 13:53:07,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:53:07,083 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 32 treesize of output 20 [2022-12-14 13:53:07,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:53:07,137 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 [2022-12-14 13:53:07,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:53:07,223 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 19 treesize of output 13 [2022-12-14 13:54:38,232 WARN L233 SmtUtils]: Spent 5.72s on a formula simplification that was a NOOP. DAG size: 17617 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)