./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_single_elem_init.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_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/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_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_single_elem_init.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/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_c9f6c9d7-be15-438f-988b-ae16e7c74181/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 aa70df64230ecddb2965be82bddd3a5869e70ae49ad8ed2ef9f27fa2ce4c5f93 --- 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 09:24:52,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:24:52,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:24:52,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:24:52,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:24:52,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:24:52,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:24:52,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:24:52,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:24:52,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:24:52,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:24:52,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:24:52,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:24:52,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:24:52,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:24:52,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:24:52,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:24:52,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:24:52,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:24:52,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:24:52,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:24:52,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:24:52,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:24:52,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:24:52,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:24:52,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:24:52,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:24:52,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:24:52,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:24:52,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:24:52,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:24:52,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:24:52,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:24:52,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:24:52,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:24:52,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:24:52,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:24:52,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:24:52,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:24:52,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:24:52,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:24:52,259 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 09:24:52,274 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:24:52,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:24:52,274 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:24:52,274 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:24:52,275 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:24:52,275 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:24:52,275 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:24:52,275 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:24:52,275 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:24:52,275 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:24:52,276 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:24:52,276 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:24:52,276 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:24:52,276 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:24:52,276 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:24:52,276 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:24:52,276 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:24:52,276 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:24:52,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:24:52,277 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:24:52,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:24:52,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:24:52,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:24:52,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:24:52,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:24:52,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:24:52,278 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:24:52,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:24:52,278 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:24:52,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:24:52,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:24:52,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:24:52,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:24:52,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:24:52,279 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:24:52,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:24:52,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:24:52,279 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:24:52,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:24:52,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:24:52,279 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:24:52,279 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_c9f6c9d7-be15-438f-988b-ae16e7c74181/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa70df64230ecddb2965be82bddd3a5869e70ae49ad8ed2ef9f27fa2ce4c5f93 [2022-12-14 09:24:52,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:24:52,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:24:52,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:24:52,462 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:24:52,462 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:24:52,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/array-industry-pattern/array_of_struct_single_elem_init.i [2022-12-14 09:24:55,132 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:24:55,252 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:24:55,252 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/sv-benchmarks/c/array-industry-pattern/array_of_struct_single_elem_init.i [2022-12-14 09:24:55,257 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/data/d6adca96e/d81618c04e984a2995bace36555a360c/FLAGe67c1bb36 [2022-12-14 09:24:55,268 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/data/d6adca96e/d81618c04e984a2995bace36555a360c [2022-12-14 09:24:55,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:24:55,272 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:24:55,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:24:55,273 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:24:55,276 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:24:55,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:24:55" (1/1) ... [2022-12-14 09:24:55,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bcd3842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:55, skipping insertion in model container [2022-12-14 09:24:55,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:24:55" (1/1) ... [2022-12-14 09:24:55,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:24:55,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:24:55,414 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_c9f6c9d7-be15-438f-988b-ae16e7c74181/sv-benchmarks/c/array-industry-pattern/array_of_struct_single_elem_init.i[865,878] [2022-12-14 09:24:55,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:24:56,376 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:24:56,386 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_c9f6c9d7-be15-438f-988b-ae16e7c74181/sv-benchmarks/c/array-industry-pattern/array_of_struct_single_elem_init.i[865,878] [2022-12-14 09:24:56,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:24:56,403 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:24:56,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:56 WrapperNode [2022-12-14 09:24:56,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:24:56,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:24:56,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:24:56,404 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:24:56,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:56" (1/1) ... [2022-12-14 09:24:56,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:56" (1/1) ... [2022-12-14 09:24:56,428 INFO L138 Inliner]: procedures = 16, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 80 [2022-12-14 09:24:56,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:24:56,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:24:56,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:24:56,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:24:56,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:56" (1/1) ... [2022-12-14 09:24:56,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:56" (1/1) ... [2022-12-14 09:24:56,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:56" (1/1) ... [2022-12-14 09:24:56,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:56" (1/1) ... [2022-12-14 09:24:56,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:56" (1/1) ... [2022-12-14 09:24:56,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:56" (1/1) ... [2022-12-14 09:24:56,444 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:56" (1/1) ... [2022-12-14 09:24:56,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:56" (1/1) ... [2022-12-14 09:24:56,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:24:56,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:24:56,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:24:56,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:24:56,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:56" (1/1) ... [2022-12-14 09:24:56,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:24:56,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:24:56,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:24:56,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:24:56,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:24:56,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:24:56,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:24:56,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:24:56,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:24:56,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:24:56,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:24:56,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:24:56,568 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:24:56,570 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:24:56,679 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:24:56,726 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:24:56,726 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 09:24:56,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:24:56 BoogieIcfgContainer [2022-12-14 09:24:56,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:24:56,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:24:56,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:24:56,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:24:56,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:24:55" (1/3) ... [2022-12-14 09:24:56,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc1a6ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:24:56, skipping insertion in model container [2022-12-14 09:24:56,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:56" (2/3) ... [2022-12-14 09:24:56,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc1a6ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:24:56, skipping insertion in model container [2022-12-14 09:24:56,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:24:56" (3/3) ... [2022-12-14 09:24:56,737 INFO L112 eAbstractionObserver]: Analyzing ICFG array_of_struct_single_elem_init.i [2022-12-14 09:24:56,757 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:24:56,757 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:24:56,811 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:24:56,817 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;@495a5fbb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:24:56,818 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:24:56,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:24:56,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 09:24:56,826 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:24:56,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 09:24:56,826 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:24:56,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:24:56,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1506668624, now seen corresponding path program 1 times [2022-12-14 09:24:56,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:24:56,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114036948] [2022-12-14 09:24:56,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:24:56,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:24:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:24:57,017 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 09:24:57,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:24:57,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114036948] [2022-12-14 09:24:57,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114036948] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:24:57,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:24:57,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:24:57,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397894598] [2022-12-14 09:24:57,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:24:57,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:24:57,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:24:57,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:24:57,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:24:57,055 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:24:57,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:24:57,089 INFO L93 Difference]: Finished difference Result 26 states and 35 transitions. [2022-12-14 09:24:57,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:24:57,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 09:24:57,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:24:57,097 INFO L225 Difference]: With dead ends: 26 [2022-12-14 09:24:57,097 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 09:24:57,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 09:24:57,103 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:24:57,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 12 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:24:57,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 09:24:57,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 10. [2022-12-14 09:24:57,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:24:57,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2022-12-14 09:24:57,126 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 6 [2022-12-14 09:24:57,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:24:57,127 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-12-14 09:24:57,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:24:57,127 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2022-12-14 09:24:57,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 09:24:57,127 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:24:57,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:24:57,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:24:57,128 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:24:57,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:24:57,129 INFO L85 PathProgramCache]: Analyzing trace with hash 486073672, now seen corresponding path program 1 times [2022-12-14 09:24:57,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:24:57,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784874155] [2022-12-14 09:24:57,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:24:57,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:24:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:24:57,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:24:57,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:24:57,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784874155] [2022-12-14 09:24:57,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784874155] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:24:57,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182223633] [2022-12-14 09:24:57,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:24:57,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:24:57,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:24:57,240 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:24:57,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:24:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:24:57,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:24:57,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:24:57,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:24:57,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:24:57,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:24:57,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1182223633] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:24:57,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1014945744] [2022-12-14 09:24:57,369 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-12-14 09:24:57,369 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:24:57,372 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:24:57,378 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:24:57,379 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:24:57,435 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 22 treesize of output 22 [2022-12-14 09:24:57,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:24:57,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:24:57,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:24:57,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-12-14 09:24:57,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:24:57,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:24:57,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:24:57,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2022-12-14 09:24:57,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:24:57,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:24:57,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 81 [2022-12-14 09:24:57,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 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 23 treesize of output 64 [2022-12-14 09:24:57,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:24:57,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:24:57,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:24:57,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:24:57,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 194 [2022-12-14 09:24:57,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:24:57,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:24:57,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:24:57,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:24:57,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 108 treesize of output 74 [2022-12-14 09:24:57,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 53 treesize of output 14 [2022-12-14 09:24:57,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-12-14 09:24:57,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-12-14 09:24:57,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 53 [2022-12-14 09:24:57,950 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 15 treesize of output 11 [2022-12-14 09:24:58,126 INFO L321 Elim1Store]: treesize reduction 90, result has 28.6 percent of original size [2022-12-14 09:24:58,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 158 treesize of output 227 [2022-12-14 09:24:58,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 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 51 treesize of output 132 [2022-12-14 09:24:58,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:24:58,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:24:58,336 INFO L321 Elim1Store]: treesize reduction 86, result has 23.9 percent of original size [2022-12-14 09:24:58,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 1079 treesize of output 1156 [2022-12-14 09:24:58,729 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:24:58,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 147 [2022-12-14 09:24:58,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:24:58,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:24:58,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:24:58,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:24:58,786 INFO L321 Elim1Store]: treesize reduction 240, result has 0.4 percent of original size [2022-12-14 09:24:58,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 343 treesize of output 995 [2022-12-14 09:24:58,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 1892 treesize of output 6007 [2022-12-14 09:24:59,104 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:24:59,114 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:24:59,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 945 treesize of output 1324 [2022-12-14 09:24:59,270 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:24:59,290 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:24:59,323 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:24:59,324 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:24:59,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:24:59,357 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:24:59,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:24:59,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 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 420 treesize of output 3298 [2022-12-14 09:24:59,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:24:59,444 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:00,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:00,893 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:00,893 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:00,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 165 [2022-12-14 09:25:01,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:01,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:01,503 INFO L321 Elim1Store]: treesize reduction 198, result has 17.2 percent of original size [2022-12-14 09:25:01,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 17436 treesize of output 17633 [2022-12-14 09:25:02,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:02,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:02,728 INFO L321 Elim1Store]: treesize reduction 148, result has 6.9 percent of original size [2022-12-14 09:25:02,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 31095 treesize of output 14707 [2022-12-14 09:25:04,583 INFO L321 Elim1Store]: treesize reduction 81, result has 18.2 percent of original size [2022-12-14 09:25:04,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 934 treesize of output 743 [2022-12-14 09:25:04,635 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:04,949 INFO L217 Elim1Store]: Index analysis took 241 ms [2022-12-14 09:25:04,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 97 [2022-12-14 09:25:04,975 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:04,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 98 treesize of output 11 [2022-12-14 09:25:05,158 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:05,170 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:05,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 849 treesize of output 1336 [2022-12-14 09:25:05,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:05,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:06,061 INFO L321 Elim1Store]: treesize reduction 182, result has 21.9 percent of original size [2022-12-14 09:25:06,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 663 treesize of output 980 [2022-12-14 09:25:06,180 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:06,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:06,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:06,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:06,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:06,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:06,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:06,357 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:06,357 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:06,357 INFO L217 Elim1Store]: Index analysis took 105 ms [2022-12-14 09:25:06,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 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 213 treesize of output 796 [2022-12-14 09:25:06,399 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:06,400 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:06,400 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:06,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:06,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:06,405 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:06,405 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:06,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:06,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:06,410 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:06,411 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:06,411 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:06,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 796 [2022-12-14 09:25:06,483 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:06,535 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 35 treesize of output 21 [2022-12-14 09:25:06,586 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 35 treesize of output 21 [2022-12-14 09:25:06,991 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 251 treesize of output 195 [2022-12-14 09:25:07,086 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 267 treesize of output 211 [2022-12-14 09:25:07,128 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:07,150 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 251 treesize of output 195 [2022-12-14 09:25:07,889 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:07,946 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:07,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:07,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:07,948 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:07,949 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:07,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 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 2820 treesize of output 16398 [2022-12-14 09:25:08,107 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:08,139 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:08,140 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:08,141 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:08,142 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:08,143 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:08,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 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 2820 treesize of output 16582 [2022-12-14 09:25:08,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:08,858 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:08,859 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:08,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 7828 treesize of output 4720 [2022-12-14 09:25:08,953 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:08,954 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:08,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 12396 treesize of output 5812 [2022-12-14 09:25:09,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:09,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:09,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:09,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:09,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 13712 treesize of output 4898 [2022-12-14 09:25:09,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:09,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:09,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:09,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:09,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 7828 treesize of output 4736 [2022-12-14 09:25:09,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:09,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:09,746 INFO L217 Elim1Store]: Index analysis took 122 ms [2022-12-14 09:25:09,826 INFO L321 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2022-12-14 09:25:09,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 13719 treesize of output 4903 [2022-12-14 09:25:10,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:10,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:10,084 INFO L321 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2022-12-14 09:25:10,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 7835 treesize of output 4741 [2022-12-14 09:25:10,435 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:10,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:10,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 383 treesize of output 466 [2022-12-14 09:25:10,578 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:10,578 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:10,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 13714 treesize of output 4890 [2022-12-14 09:25:10,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:10,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:10,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:10,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 7830 treesize of output 4722 [2022-12-14 09:25:10,855 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:10,856 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:10,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 12391 treesize of output 5809 [2022-12-14 09:25:10,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:10,980 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:10,980 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:10,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 7823 treesize of output 4717 [2022-12-14 09:25:11,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:11,089 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:11,089 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:11,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 7816 treesize of output 4712 [2022-12-14 09:25:11,178 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:11,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:11,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 12384 treesize of output 5804 [2022-12-14 09:25:11,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:11,496 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:11,496 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:11,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 7823 treesize of output 4717 [2022-12-14 09:25:11,581 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:11,581 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:11,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 13707 treesize of output 4885 [2022-12-14 09:25:11,763 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:11,764 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:11,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 376 treesize of output 461 [2022-12-14 09:25:11,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:11,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:11,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:11,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:11,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 376 treesize of output 571 [2022-12-14 09:25:11,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:11,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:11,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:11,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:11,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 7816 treesize of output 4728 [2022-12-14 09:25:12,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:12,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:12,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:12,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:12,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 13700 treesize of output 4890 [2022-12-14 09:25:12,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:12,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:12,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:12,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:12,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 7823 treesize of output 4733 [2022-12-14 09:25:12,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:12,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:12,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:12,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:12,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 13707 treesize of output 4895 [2022-12-14 09:25:12,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:12,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:12,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:12,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:12,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 376 treesize of output 571 [2022-12-14 09:25:13,553 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:13,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 239 treesize of output 434 [2022-12-14 09:25:13,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 13 [2022-12-14 09:25:14,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:14,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:14,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:14,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:14,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 379 treesize of output 572 [2022-12-14 09:25:14,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:14,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:14,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:14,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:14,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 133 [2022-12-14 09:25:14,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:14,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:14,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:14,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:14,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:14,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:14,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 712 treesize of output 613 [2022-12-14 09:25:14,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:14,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:14,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:14,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:14,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 123 [2022-12-14 09:25:14,798 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:15,103 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:15,113 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:15,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 537 treesize of output 571 [2022-12-14 09:25:15,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:15,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:15,443 INFO L321 Elim1Store]: treesize reduction 108, result has 32.1 percent of original size [2022-12-14 09:25:15,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 1009 treesize of output 1058 [2022-12-14 09:25:15,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:15,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:15,696 INFO L321 Elim1Store]: treesize reduction 84, result has 37.8 percent of original size [2022-12-14 09:25:15,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 695 treesize of output 762 [2022-12-14 09:25:15,735 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:15,754 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:15,755 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 110 [2022-12-14 09:25:15,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:15,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:15,842 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 09:25:15,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 24 [2022-12-14 09:25:15,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:15,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:15,958 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-12-14 09:25:15,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 45 [2022-12-14 09:25:16,281 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:16,287 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:16,297 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:16,301 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:16,313 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:16,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:16,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:16,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:16,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:16,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 17 [2022-12-14 09:25:16,333 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:16,339 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:16,353 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:16,360 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:16,372 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:16,379 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:16,395 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:16,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:16,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:16,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:16,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:16,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 28 [2022-12-14 09:25:16,418 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:16,425 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:16,435 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:16,443 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:25:16,504 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 18 treesize of output 19 [2022-12-14 09:25:16,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-12-14 09:25:16,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-12-14 09:25:16,538 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:25:16,827 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '103#(and (= (select (select |#memory_int| |ULTIMATE.start_main_~#s1~0#1.base|) |ULTIMATE.start_main_~#s1~0#1.offset|) (select (select |#memory_int| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~0#1| 8) |~#a~0.offset|))) (= (ite (= |ULTIMATE.start_main_#t~mem12#1| 10) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start_main_~#s1~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= 30 (select (select |#memory_int| |~#a~0.base|) (+ |~#a~0.offset| 24))) (= (select |#valid| |ULTIMATE.start_main_~#s1~0#1.base|) 1) (= (select (select |#memory_int| |ULTIMATE.start_main_~#s1~0#1.base|) (+ |ULTIMATE.start_main_~#s1~0#1.offset| 4)) 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= 8 (select |#length| |ULTIMATE.start_main_~#s1~0#1.base|)) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#s1~0#1.base|) (= 3 |~#a~0.base|) (= (select (select |#memory_int| |ULTIMATE.start_main_~#s1~0#1.base|) |ULTIMATE.start_main_~#s1~0#1.offset|) |ULTIMATE.start_main_#t~mem12#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= |~#a~0.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#s1~0#1.base|) (+ |ULTIMATE.start_main_~#s1~0#1.offset| 4)) (select (select |#memory_int| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~0#1| 8) 4 |~#a~0.offset|))) (= 40 (select (select |#memory_int| |~#a~0.base|) (+ 28 |~#a~0.offset|))) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 09:25:16,827 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:25:16,827 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:25:16,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-12-14 09:25:16,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617261613] [2022-12-14 09:25:16,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:25:16,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 09:25:16,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:25:16,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 09:25:16,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=73, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:25:16,830 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:25:16,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:25:16,868 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2022-12-14 09:25:16,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:25:16,869 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 09:25:16,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:25:16,869 INFO L225 Difference]: With dead ends: 42 [2022-12-14 09:25:16,869 INFO L226 Difference]: Without dead ends: 35 [2022-12-14 09:25:16,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=73, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:25:16,871 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 42 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:25:16,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 24 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:25:16,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-12-14 09:25:16,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 13. [2022-12-14 09:25:16,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:25:16,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-12-14 09:25:16,875 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 7 [2022-12-14 09:25:16,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:25:16,875 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-12-14 09:25:16,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:25:16,875 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-12-14 09:25:16,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 09:25:16,875 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:25:16,875 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2022-12-14 09:25:16,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:25:17,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:25:17,077 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:25:17,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:25:17,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1945717328, now seen corresponding path program 2 times [2022-12-14 09:25:17,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:25:17,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032549051] [2022-12-14 09:25:17,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:25:17,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:25:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:25:17,269 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:17,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:25:17,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032549051] [2022-12-14 09:25:17,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032549051] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:25:17,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039474274] [2022-12-14 09:25:17,270 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 09:25:17,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:25:17,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:25:17,271 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:25:17,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:25:17,366 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 09:25:17,366 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:25:17,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 09:25:17,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:25:17,381 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:17,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:25:17,425 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:17,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039474274] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:25:17,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1924823876] [2022-12-14 09:25:17,428 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-12-14 09:25:17,428 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:25:17,428 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:25:17,429 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:25:17,429 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:25:17,438 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 22 treesize of output 22 [2022-12-14 09:25:17,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:17,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:17,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:17,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-12-14 09:25:17,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:17,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:17,495 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 09:25:17,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 41 [2022-12-14 09:25:17,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:17,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:17,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 81 [2022-12-14 09:25:17,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 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 23 treesize of output 64 [2022-12-14 09:25:17,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:17,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:17,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:17,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:17,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 209 treesize of output 198 [2022-12-14 09:25:17,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 119 [2022-12-14 09:25:17,584 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 15 [2022-12-14 09:25:17,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:17,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:17,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:17,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:17,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 125 treesize of output 79 [2022-12-14 09:25:17,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-12-14 09:25:17,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 53 [2022-12-14 09:25:17,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-12-14 09:25:17,753 INFO L321 Elim1Store]: treesize reduction 42, result has 39.1 percent of original size [2022-12-14 09:25:17,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 109 treesize of output 132 [2022-12-14 09:25:17,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:17,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:17,802 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-12-14 09:25:17,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 49 [2022-12-14 09:25:17,919 INFO L321 Elim1Store]: treesize reduction 46, result has 35.2 percent of original size [2022-12-14 09:25:17,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 789 treesize of output 760 [2022-12-14 09:25:17,943 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 635 treesize of output 627 [2022-12-14 09:25:17,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:17,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:17,988 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 09:25:17,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 21 [2022-12-14 09:25:18,047 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-12-14 09:25:18,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 39 [2022-12-14 09:25:18,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:18,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 29 treesize of output 33 [2022-12-14 09:25:18,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 25 treesize of output 29 [2022-12-14 09:25:18,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:18,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:18,115 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-12-14 09:25:18,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 54 [2022-12-14 09:25:18,131 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 20 treesize of output 14 [2022-12-14 09:25:18,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:18,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:18,153 INFO L321 Elim1Store]: treesize reduction 70, result has 1.4 percent of original size [2022-12-14 09:25:18,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 46 [2022-12-14 09:25:18,162 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 20 treesize of output 14 [2022-12-14 09:25:18,170 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 20 treesize of output 14 [2022-12-14 09:25:18,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-12-14 09:25:18,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 53 [2022-12-14 09:25:18,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-12-14 09:25:18,273 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 15 treesize of output 11 [2022-12-14 09:25:18,352 INFO L321 Elim1Store]: treesize reduction 90, result has 28.6 percent of original size [2022-12-14 09:25:18,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 158 treesize of output 232 [2022-12-14 09:25:18,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 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 51 treesize of output 132 [2022-12-14 09:25:18,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:18,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:18,509 INFO L321 Elim1Store]: treesize reduction 94, result has 16.8 percent of original size [2022-12-14 09:25:18,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 1079 treesize of output 1148 [2022-12-14 09:25:18,611 INFO L321 Elim1Store]: treesize reduction 121, result has 11.7 percent of original size [2022-12-14 09:25:18,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 610 treesize of output 567 [2022-12-14 09:25:18,640 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:18,644 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:18,644 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 72 [2022-12-14 09:25:18,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:18,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:18,714 INFO L321 Elim1Store]: treesize reduction 68, result has 25.3 percent of original size [2022-12-14 09:25:18,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 86 treesize of output 83 [2022-12-14 09:25:18,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:18,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:18,739 INFO L321 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-12-14 09:25:18,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 1 [2022-12-14 09:25:18,747 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 31 treesize of output 21 [2022-12-14 09:25:18,770 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:18,773 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:25:18,774 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 161 [2022-12-14 09:25:18,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:18,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:18,952 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-12-14 09:25:18,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 496 treesize of output 489 [2022-12-14 09:25:18,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:18,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:18,994 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-12-14 09:25:18,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 122 treesize of output 117 [2022-12-14 09:25:19,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:19,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:25:19,030 INFO L321 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2022-12-14 09:25:19,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 244 treesize of output 110 [2022-12-14 09:25:19,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 09:25:19,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:25:19,238 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: no need to replace index at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:333) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructDerEnabler(DerPreprocessor.java:187) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.(DerPreprocessor.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:353) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:122) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:119) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:98) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-14 09:25:19,241 INFO L158 Benchmark]: Toolchain (without parser) took 23969.55ms. Allocated memory was 125.8MB in the beginning and 1.1GB in the end (delta: 924.8MB). Free memory was 89.2MB in the beginning and 557.0MB in the end (delta: -467.8MB). Peak memory consumption was 461.1MB. Max. memory is 16.1GB. [2022-12-14 09:25:19,241 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 125.8MB. Free memory is still 67.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:25:19,242 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1131.00ms. Allocated memory was 125.8MB in the beginning and 419.4MB in the end (delta: 293.6MB). Free memory was 89.2MB in the beginning and 143.5MB in the end (delta: -54.3MB). Peak memory consumption was 272.2MB. Max. memory is 16.1GB. [2022-12-14 09:25:19,242 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.47ms. Allocated memory is still 419.4MB. Free memory was 143.5MB in the beginning and 142.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:25:19,242 INFO L158 Benchmark]: Boogie Preprocessor took 16.97ms. Allocated memory is still 419.4MB. Free memory was 142.5MB in the beginning and 141.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:25:19,242 INFO L158 Benchmark]: RCFGBuilder took 282.65ms. Allocated memory is still 419.4MB. Free memory was 141.4MB in the beginning and 169.7MB in the end (delta: -28.3MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2022-12-14 09:25:19,242 INFO L158 Benchmark]: TraceAbstraction took 22509.46ms. Allocated memory was 419.4MB in the beginning and 1.1GB in the end (delta: 631.2MB). Free memory was 168.6MB in the beginning and 557.0MB in the end (delta: -388.4MB). Peak memory consumption was 242.3MB. Max. memory is 16.1GB. [2022-12-14 09:25:19,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 125.8MB. Free memory is still 67.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1131.00ms. Allocated memory was 125.8MB in the beginning and 419.4MB in the end (delta: 293.6MB). Free memory was 89.2MB in the beginning and 143.5MB in the end (delta: -54.3MB). Peak memory consumption was 272.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.47ms. Allocated memory is still 419.4MB. Free memory was 143.5MB in the beginning and 142.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.97ms. Allocated memory is still 419.4MB. Free memory was 142.5MB in the beginning and 141.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 282.65ms. Allocated memory is still 419.4MB. Free memory was 141.4MB in the beginning and 169.7MB in the end (delta: -28.3MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. * TraceAbstraction took 22509.46ms. Allocated memory was 419.4MB in the beginning and 1.1GB in the end (delta: 631.2MB). Free memory was 168.6MB in the beginning and 557.0MB in the end (delta: -388.4MB). Peak memory consumption was 242.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: no need to replace index de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: no need to replace index: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:333) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-14 09:25:19,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/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_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_single_elem_init.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/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 aa70df64230ecddb2965be82bddd3a5869e70ae49ad8ed2ef9f27fa2ce4c5f93 --- 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 09:25:20,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:25:20,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:25:20,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:25:20,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:25:20,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:25:20,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:25:20,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:25:20,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:25:20,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:25:20,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:25:20,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:25:20,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:25:20,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:25:20,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:25:20,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:25:20,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:25:20,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:25:20,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:25:20,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:25:20,911 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:25:20,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:25:20,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:25:20,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:25:20,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:25:20,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:25:20,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:25:20,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:25:20,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:25:20,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:25:20,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:25:20,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:25:20,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:25:20,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:25:20,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:25:20,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:25:20,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:25:20,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:25:20,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:25:20,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:25:20,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:25:20,929 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-12-14 09:25:20,945 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:25:20,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:25:20,946 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:25:20,946 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:25:20,946 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:25:20,946 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:25:20,946 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:25:20,947 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:25:20,947 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:25:20,947 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:25:20,947 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:25:20,947 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:25:20,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:25:20,948 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:25:20,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:25:20,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:25:20,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:25:20,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:25:20,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:25:20,948 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 09:25:20,949 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 09:25:20,949 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 09:25:20,949 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:25:20,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:25:20,949 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:25:20,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:25:20,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:25:20,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 09:25:20,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:25:20,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:25:20,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:25:20,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:25:20,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:25:20,950 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 09:25:20,950 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 09:25:20,950 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:25:20,951 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:25:20,951 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 09:25:20,951 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_c9f6c9d7-be15-438f-988b-ae16e7c74181/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa70df64230ecddb2965be82bddd3a5869e70ae49ad8ed2ef9f27fa2ce4c5f93 [2022-12-14 09:25:21,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:25:21,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:25:21,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:25:21,179 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:25:21,179 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:25:21,180 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/array-industry-pattern/array_of_struct_single_elem_init.i [2022-12-14 09:25:23,759 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:25:23,878 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:25:23,878 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/sv-benchmarks/c/array-industry-pattern/array_of_struct_single_elem_init.i [2022-12-14 09:25:23,883 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/data/70cc0f8a6/172ad1a6c85b4cb69024934b8c147acf/FLAGce31fba51 [2022-12-14 09:25:23,894 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/data/70cc0f8a6/172ad1a6c85b4cb69024934b8c147acf [2022-12-14 09:25:23,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:25:23,897 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:25:23,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:25:23,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:25:23,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:25:23,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:25:23" (1/1) ... [2022-12-14 09:25:23,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1044845f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:23, skipping insertion in model container [2022-12-14 09:25:23,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:25:23" (1/1) ... [2022-12-14 09:25:23,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:25:23,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:25:24,046 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_c9f6c9d7-be15-438f-988b-ae16e7c74181/sv-benchmarks/c/array-industry-pattern/array_of_struct_single_elem_init.i[865,878] [2022-12-14 09:25:24,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:25:25,240 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:25:25,251 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_c9f6c9d7-be15-438f-988b-ae16e7c74181/sv-benchmarks/c/array-industry-pattern/array_of_struct_single_elem_init.i[865,878] [2022-12-14 09:25:25,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:25:25,276 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:25:25,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:25 WrapperNode [2022-12-14 09:25:25,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:25:25,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:25:25,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:25:25,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:25:25,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:25" (1/1) ... [2022-12-14 09:25:25,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:25" (1/1) ... [2022-12-14 09:25:25,311 INFO L138 Inliner]: procedures = 19, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2022-12-14 09:25:25,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:25:25,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:25:25,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:25:25,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:25:25,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:25" (1/1) ... [2022-12-14 09:25:25,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:25" (1/1) ... [2022-12-14 09:25:25,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:25" (1/1) ... [2022-12-14 09:25:25,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:25" (1/1) ... [2022-12-14 09:25:25,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:25" (1/1) ... [2022-12-14 09:25:25,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:25" (1/1) ... [2022-12-14 09:25:25,336 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:25" (1/1) ... [2022-12-14 09:25:25,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:25" (1/1) ... [2022-12-14 09:25:25,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:25:25,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:25:25,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:25:25,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:25:25,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:25" (1/1) ... [2022-12-14 09:25:25,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:25:25,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:25:25,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:25:25,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:25:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:25:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 09:25:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-12-14 09:25:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:25:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 09:25:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:25:25,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:25:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:25:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 09:25:25,480 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:25:25,482 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:25:25,629 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:25:25,633 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:25:25,634 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 09:25:25,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:25:25 BoogieIcfgContainer [2022-12-14 09:25:25,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:25:25,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:25:25,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:25:25,639 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:25:25,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:25:23" (1/3) ... [2022-12-14 09:25:25,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a73cf13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:25:25, skipping insertion in model container [2022-12-14 09:25:25,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:25" (2/3) ... [2022-12-14 09:25:25,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a73cf13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:25:25, skipping insertion in model container [2022-12-14 09:25:25,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:25:25" (3/3) ... [2022-12-14 09:25:25,641 INFO L112 eAbstractionObserver]: Analyzing ICFG array_of_struct_single_elem_init.i [2022-12-14 09:25:25,654 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:25:25,655 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:25:25,687 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:25:25,692 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;@3551d48d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:25:25,692 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:25:25,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:25:25,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 09:25:25,699 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:25:25,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:25:25,700 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:25:25,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:25:25,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1140000322, now seen corresponding path program 1 times [2022-12-14 09:25:25,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 09:25:25,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728422876] [2022-12-14 09:25:25,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:25:25,713 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 09:25:25,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 09:25:25,715 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 09:25:25,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 09:25:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:25:25,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 09:25:25,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:25:25,806 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 09:25:25,806 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:25:25,807 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 09:25:25,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728422876] [2022-12-14 09:25:25,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1728422876] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:25:25,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:25:25,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:25:25,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658123195] [2022-12-14 09:25:25,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:25:25,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:25:25,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 09:25:25,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:25:25,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:25:25,835 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:25:25,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:25:25,847 INFO L93 Difference]: Finished difference Result 32 states and 43 transitions. [2022-12-14 09:25:25,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:25:25,848 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 09:25:25,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:25:25,854 INFO L225 Difference]: With dead ends: 32 [2022-12-14 09:25:25,854 INFO L226 Difference]: Without dead ends: 15 [2022-12-14 09:25:25,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 09:25:25,859 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:25:25,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:25:25,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-14 09:25:25,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-14 09:25:25,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:25:25,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2022-12-14 09:25:25,885 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 9 [2022-12-14 09:25:25,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:25:25,885 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2022-12-14 09:25:25,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:25:25,886 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2022-12-14 09:25:25,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 09:25:25,886 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:25:25,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:25:25,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:25:26,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 09:25:26,088 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:25:26,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:25:26,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1807612939, now seen corresponding path program 1 times [2022-12-14 09:25:26,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 09:25:26,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1067422864] [2022-12-14 09:25:26,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:25:26,093 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 09:25:26,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 09:25:26,096 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 09:25:26,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 09:25:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:25:26,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 09:25:26,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:25:26,298 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 09:25:26,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:25:26,298 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 09:25:26,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1067422864] [2022-12-14 09:25:26,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1067422864] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:25:26,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:25:26,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:25:26,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562260163] [2022-12-14 09:25:26,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:25:26,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:25:26,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 09:25:26,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:25:26,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:25:26,301 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:25:26,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:25:26,335 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2022-12-14 09:25:26,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:25:26,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 09:25:26,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:25:26,336 INFO L225 Difference]: With dead ends: 36 [2022-12-14 09:25:26,336 INFO L226 Difference]: Without dead ends: 27 [2022-12-14 09:25:26,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 09:25:26,337 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 13 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:25:26,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 25 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:25:26,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-14 09:25:26,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 16. [2022-12-14 09:25:26,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:25:26,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2022-12-14 09:25:26,341 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 9 [2022-12-14 09:25:26,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:25:26,341 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2022-12-14 09:25:26,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:25:26,341 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2022-12-14 09:25:26,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 09:25:26,342 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:25:26,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:25:26,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 09:25:26,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 09:25:26,544 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:25:26,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:25:26,546 INFO L85 PathProgramCache]: Analyzing trace with hash -2006795472, now seen corresponding path program 1 times [2022-12-14 09:25:26,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 09:25:26,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127051788] [2022-12-14 09:25:26,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:25:26,549 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 09:25:26,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 09:25:26,552 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 09:25:26,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-14 09:25:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:25:26,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:25:26,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:25:26,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:26,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:25:26,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:26,778 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 09:25:26,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127051788] [2022-12-14 09:25:26,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127051788] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:25:26,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [822312425] [2022-12-14 09:25:26,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:25:26,779 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 09:25:26,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 09:25:26,780 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 09:25:26,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2022-12-14 09:25:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:25:26,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:25:26,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:25:26,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:26,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:25:26,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:26,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [822312425] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:25:26,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171300597] [2022-12-14 09:25:26,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:25:26,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:25:26,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:25:26,890 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:25:26,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 09:25:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:25:26,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:25:26,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:25:26,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:26,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:25:26,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:26,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171300597] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:25:26,966 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 09:25:26,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2022-12-14 09:25:26,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766486957] [2022-12-14 09:25:26,966 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 09:25:26,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:25:26,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 09:25:26,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:25:26,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:25:26,968 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:25:27,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:25:27,062 INFO L93 Difference]: Finished difference Result 62 states and 80 transitions. [2022-12-14 09:25:27,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:25:27,062 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-14 09:25:27,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:25:27,063 INFO L225 Difference]: With dead ends: 62 [2022-12-14 09:25:27,063 INFO L226 Difference]: Without dead ends: 53 [2022-12-14 09:25:27,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:25:27,064 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 92 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:25:27,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 56 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:25:27,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-12-14 09:25:27,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 28. [2022-12-14 09:25:27,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:25:27,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2022-12-14 09:25:27,068 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 13 [2022-12-14 09:25:27,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:25:27,068 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2022-12-14 09:25:27,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:25:27,068 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2022-12-14 09:25:27,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 09:25:27,069 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:25:27,069 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:25:27,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-14 09:25:27,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2022-12-14 09:25:27,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 09:25:27,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:25:27,673 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:25:27,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:25:27,674 INFO L85 PathProgramCache]: Analyzing trace with hash -741908511, now seen corresponding path program 2 times [2022-12-14 09:25:27,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 09:25:27,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711349455] [2022-12-14 09:25:27,676 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 09:25:27,677 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 09:25:27,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 09:25:27,678 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 09:25:27,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-14 09:25:27,785 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 09:25:27,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:25:27,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 09:25:27,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:25:27,837 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:27,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:25:27,973 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:27,973 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 09:25:27,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1711349455] [2022-12-14 09:25:27,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1711349455] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:25:27,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1056737510] [2022-12-14 09:25:27,974 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 09:25:27,974 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 09:25:27,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 09:25:27,975 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 09:25:27,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2022-12-14 09:25:28,137 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 09:25:28,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:25:28,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 09:25:28,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:25:28,176 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:28,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:25:28,227 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:28,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1056737510] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:25:28,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015627216] [2022-12-14 09:25:28,228 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 09:25:28,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:25:28,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:25:28,229 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:25:28,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 09:25:28,310 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 09:25:28,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:25:28,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 09:25:28,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:25:28,346 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:28,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:25:28,396 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:28,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015627216] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:25:28,396 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 09:25:28,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 12 [2022-12-14 09:25:28,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387248063] [2022-12-14 09:25:28,397 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 09:25:28,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 09:25:28,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 09:25:28,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 09:25:28,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:25:28,399 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:25:28,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:25:28,863 INFO L93 Difference]: Finished difference Result 134 states and 173 transitions. [2022-12-14 09:25:28,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 09:25:28,864 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-12-14 09:25:28,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:25:28,865 INFO L225 Difference]: With dead ends: 134 [2022-12-14 09:25:28,865 INFO L226 Difference]: Without dead ends: 125 [2022-12-14 09:25:28,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2022-12-14 09:25:28,866 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 391 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:25:28,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 299 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 09:25:28,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-12-14 09:25:28,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 52. [2022-12-14 09:25:28,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 51 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:25:28,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 65 transitions. [2022-12-14 09:25:28,874 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 65 transitions. Word has length 25 [2022-12-14 09:25:28,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:25:28,875 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 65 transitions. [2022-12-14 09:25:28,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:25:28,875 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 65 transitions. [2022-12-14 09:25:28,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-14 09:25:28,876 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:25:28,876 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:25:28,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2022-12-14 09:25:29,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 09:25:29,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-12-14 09:25:29,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 09:25:29,479 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:25:29,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:25:29,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1207212861, now seen corresponding path program 3 times [2022-12-14 09:25:29,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 09:25:29,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1943471696] [2022-12-14 09:25:29,483 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 09:25:29,483 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 09:25:29,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 09:25:29,484 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 09:25:29,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-14 09:25:30,153 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-12-14 09:25:30,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:25:30,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 09:25:30,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:25:30,290 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:30,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:25:31,029 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:31,029 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 09:25:31,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1943471696] [2022-12-14 09:25:31,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1943471696] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:25:31,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1548077743] [2022-12-14 09:25:31,029 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 09:25:31,030 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 09:25:31,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 09:25:31,031 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 09:25:31,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-12-14 09:25:37,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-12-14 09:25:37,847 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:25:37,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 09:25:37,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:25:37,964 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:37,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:25:38,205 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:38,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1548077743] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:25:38,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583570039] [2022-12-14 09:25:38,205 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 09:25:38,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:25:38,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:25:38,207 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:25:38,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-14 09:28:07,762 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-12-14 09:28:07,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:28:07,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 09:28:07,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:28:07,863 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:28:07,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:28:08,092 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:28:08,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583570039] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:28:08,092 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 09:28:08,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 13, 14, 13, 14] total 25 [2022-12-14 09:28:08,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816060210] [2022-12-14 09:28:08,093 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 09:28:08,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 09:28:08,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 09:28:08,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 09:28:08,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2022-12-14 09:28:08,095 INFO L87 Difference]: Start difference. First operand 52 states and 65 transitions. Second operand has 25 states, 25 states have (on average 3.64) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:28:10,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:28:10,229 INFO L93 Difference]: Finished difference Result 278 states and 359 transitions. [2022-12-14 09:28:10,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 09:28:10,230 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.64) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-12-14 09:28:10,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:28:10,232 INFO L225 Difference]: With dead ends: 278 [2022-12-14 09:28:10,232 INFO L226 Difference]: Without dead ends: 269 [2022-12-14 09:28:10,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=454, Invalid=806, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 09:28:10,234 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 1216 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 1336 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:28:10,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1216 Valid, 1336 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 09:28:10,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-12-14 09:28:10,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 100. [2022-12-14 09:28:10,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.2626262626262625) internal successors, (125), 99 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:28:10,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2022-12-14 09:28:10,246 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 49 [2022-12-14 09:28:10,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:28:10,246 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2022-12-14 09:28:10,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.64) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:28:10,247 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2022-12-14 09:28:10,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-14 09:28:10,249 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:28:10,249 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:28:10,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-14 09:28:10,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2022-12-14 09:28:10,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-12-14 09:28:10,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 09:28:10,852 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:28:10,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:28:10,854 INFO L85 PathProgramCache]: Analyzing trace with hash 239950983, now seen corresponding path program 4 times [2022-12-14 09:28:10,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 09:28:10,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871357019] [2022-12-14 09:28:10,857 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 09:28:10,857 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 09:28:10,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 09:28:10,859 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 09:28:10,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-12-14 09:28:11,211 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 09:28:11,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:28:11,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-14 09:28:11,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:28:11,587 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:28:11,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:28:13,244 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:28:13,244 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 09:28:13,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [871357019] [2022-12-14 09:28:13,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [871357019] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:28:13,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [36140034] [2022-12-14 09:28:13,244 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 09:28:13,244 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 09:28:13,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 09:28:13,245 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 09:28:13,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-12-14 09:28:13,616 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 09:28:13,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:28:13,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-14 09:28:13,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:28:13,753 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:28:13,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:28:13,950 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:28:13,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [36140034] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:28:13,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316649864] [2022-12-14 09:28:13,950 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 09:28:13,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:28:13,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:28:13,952 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:28:13,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-14 09:28:14,158 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 09:28:14,159 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:28:14,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-14 09:28:14,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:28:14,284 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:28:14,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:28:14,459 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:28:14,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316649864] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:28:14,460 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 09:28:14,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25, 25, 25, 25] total 48 [2022-12-14 09:28:14,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762245006] [2022-12-14 09:28:14,460 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 09:28:14,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-12-14 09:28:14,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 09:28:14,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-12-14 09:28:14,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1634, Unknown=0, NotChecked=0, Total=2256 [2022-12-14 09:28:14,462 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand has 48 states, 48 states have (on average 3.8958333333333335) internal successors, (187), 48 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:28:23,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:28:23,813 INFO L93 Difference]: Finished difference Result 566 states and 731 transitions. [2022-12-14 09:28:23,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-14 09:28:23,813 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 3.8958333333333335) internal successors, (187), 48 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-12-14 09:28:23,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:28:23,815 INFO L225 Difference]: With dead ends: 566 [2022-12-14 09:28:23,815 INFO L226 Difference]: Without dead ends: 557 [2022-12-14 09:28:23,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 598 GetRequests, 530 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=1678, Invalid=3152, Unknown=0, NotChecked=0, Total=4830 [2022-12-14 09:28:23,817 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 6065 mSDsluCounter, 5303 mSDsCounter, 0 mSdLazyCounter, 2826 mSolverCounterSat, 602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6065 SdHoareTripleChecker+Valid, 5537 SdHoareTripleChecker+Invalid, 3428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 602 IncrementalHoareTripleChecker+Valid, 2826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:28:23,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6065 Valid, 5537 Invalid, 3428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [602 Valid, 2826 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 09:28:23,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-12-14 09:28:23,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 196. [2022-12-14 09:28:23,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 195 states have (on average 1.2564102564102564) internal successors, (245), 195 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:28:23,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 245 transitions. [2022-12-14 09:28:23,828 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 245 transitions. Word has length 97 [2022-12-14 09:28:23,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:28:23,828 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 245 transitions. [2022-12-14 09:28:23,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 3.8958333333333335) internal successors, (187), 48 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:28:23,828 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 245 transitions. [2022-12-14 09:28:23,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-12-14 09:28:23,830 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:28:23,830 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:28:23,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2022-12-14 09:28:24,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-12-14 09:28:24,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-12-14 09:28:24,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 09:28:24,433 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:28:24,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:28:24,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1120861169, now seen corresponding path program 5 times [2022-12-14 09:28:24,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 09:28:24,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1989731718] [2022-12-14 09:28:24,439 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-14 09:28:24,439 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 09:28:24,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 09:28:24,440 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 09:28:24,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-12-14 09:28:38,027 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-12-14 09:28:38,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:28:38,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 1196 conjuncts, 54 conjunts are in the unsatisfiable core [2022-12-14 09:28:38,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:28:39,149 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:28:39,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:28:48,018 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:28:48,018 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 09:28:48,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1989731718] [2022-12-14 09:28:48,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1989731718] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:28:48,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1106381176] [2022-12-14 09:28:48,019 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-14 09:28:48,019 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 09:28:48,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 09:28:48,020 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 09:28:48,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c9d7-be15-438f-988b-ae16e7c74181/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process