./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/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_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/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_30508372-7b15-4b34-9637-c614a4cdce2c/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 5b41ff920513b74db566933dfdd7430dbdb0b5764645b98d18d29abf93fb4135 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 13:09:41,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:09:41,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:09:41,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:09:41,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:09:41,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:09:41,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:09:41,264 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:09:41,265 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:09:41,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:09:41,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:09:41,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:09:41,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:09:41,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:09:41,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:09:41,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:09:41,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:09:41,271 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:09:41,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:09:41,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:09:41,275 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:09:41,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:09:41,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:09:41,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:09:41,279 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:09:41,280 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:09:41,280 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:09:41,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:09:41,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:09:41,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:09:41,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:09:41,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:09:41,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:09:41,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:09:41,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:09:41,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:09:41,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:09:41,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:09:41,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:09:41,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:09:41,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:09:41,287 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 13:09:41,302 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:09:41,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:09:41,303 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:09:41,303 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:09:41,303 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:09:41,303 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:09:41,304 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:09:41,304 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:09:41,304 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:09:41,304 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:09:41,304 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:09:41,304 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:09:41,304 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:09:41,305 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:09:41,305 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:09:41,305 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:09:41,305 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:09:41,305 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:09:41,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:09:41,306 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:09:41,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:09:41,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:09:41,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:09:41,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:09:41,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:09:41,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:09:41,307 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:09:41,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:09:41,307 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:09:41,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:09:41,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:09:41,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:09:41,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:09:41,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:09:41,308 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:09:41,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:09:41,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:09:41,309 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:09:41,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:09:41,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:09:41,309 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:09:41,310 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_30508372-7b15-4b34-9637-c614a4cdce2c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b41ff920513b74db566933dfdd7430dbdb0b5764645b98d18d29abf93fb4135 [2022-12-14 13:09:41,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:09:41,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:09:41,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:09:41,498 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:09:41,499 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:09:41,500 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i [2022-12-14 13:09:43,979 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:09:44,191 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:09:44,192 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i [2022-12-14 13:09:44,202 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/data/765254769/62e18954f2ea4c31996d3430b2af44c6/FLAG934686235 [2022-12-14 13:09:44,550 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/data/765254769/62e18954f2ea4c31996d3430b2af44c6 [2022-12-14 13:09:44,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:09:44,553 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:09:44,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:09:44,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:09:44,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:09:44,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:09:44" (1/1) ... [2022-12-14 13:09:44,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@606effd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:09:44, skipping insertion in model container [2022-12-14 13:09:44,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:09:44" (1/1) ... [2022-12-14 13:09:44,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:09:44,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:09:44,934 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_30508372-7b15-4b34-9637-c614a4cdce2c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i[37019,37032] [2022-12-14 13:09:44,990 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:09:44,992 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_30508372-7b15-4b34-9637-c614a4cdce2c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i[47352,47365] [2022-12-14 13:09:45,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:09:45,008 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:09:45,029 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_30508372-7b15-4b34-9637-c614a4cdce2c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i[37019,37032] [2022-12-14 13:09:45,061 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:09:45,062 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_30508372-7b15-4b34-9637-c614a4cdce2c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i[47352,47365] [2022-12-14 13:09:45,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:09:45,103 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:09:45,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:09:45 WrapperNode [2022-12-14 13:09:45,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:09:45,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:09:45,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:09:45,104 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:09:45,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:09:45" (1/1) ... [2022-12-14 13:09:45,134 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:09:45" (1/1) ... [2022-12-14 13:09:45,164 INFO L138 Inliner]: procedures = 208, calls = 286, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1035 [2022-12-14 13:09:45,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:09:45,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:09:45,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:09:45,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:09:45,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:09:45" (1/1) ... [2022-12-14 13:09:45,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:09:45" (1/1) ... [2022-12-14 13:09:45,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:09:45" (1/1) ... [2022-12-14 13:09:45,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:09:45" (1/1) ... [2022-12-14 13:09:45,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:09:45" (1/1) ... [2022-12-14 13:09:45,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:09:45" (1/1) ... [2022-12-14 13:09:45,213 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:09:45" (1/1) ... [2022-12-14 13:09:45,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:09:45" (1/1) ... [2022-12-14 13:09:45,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:09:45,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:09:45,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:09:45,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:09:45,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:09:45" (1/1) ... [2022-12-14 13:09:45,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:09:45,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:09:45,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:09:45,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:09:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 13:09:45,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 13:09:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:09:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 13:09:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 13:09:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:09:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 13:09:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 13:09:45,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 13:09:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 13:09:45,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 13:09:45,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:09:45,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 13:09:45,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:09:45,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:09:45,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:09:45,409 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:09:45,410 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:09:46,336 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:09:46,646 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:09:46,647 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-12-14 13:09:46,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:09:46 BoogieIcfgContainer [2022-12-14 13:09:46,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:09:46,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:09:46,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:09:46,661 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:09:46,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:09:44" (1/3) ... [2022-12-14 13:09:46,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0acbcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:09:46, skipping insertion in model container [2022-12-14 13:09:46,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:09:45" (2/3) ... [2022-12-14 13:09:46,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0acbcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:09:46, skipping insertion in model container [2022-12-14 13:09:46,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:09:46" (3/3) ... [2022-12-14 13:09:46,663 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test2-2.i [2022-12-14 13:09:46,676 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:09:46,676 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 13:09:46,714 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:09:46,719 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;@379c428a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:09:46,719 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 13:09:46,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 13:09:46,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 13:09:46,728 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:09:46,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:09:46,729 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:09:46,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:09:46,732 INFO L85 PathProgramCache]: Analyzing trace with hash 527974349, now seen corresponding path program 1 times [2022-12-14 13:09:46,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:09:46,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434314964] [2022-12-14 13:09:46,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:09:46,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:09:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:09:46,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:09:46,859 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:09:46,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434314964] [2022-12-14 13:09:46,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434314964] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:09:46,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:09:46,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:09:46,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904301959] [2022-12-14 13:09:46,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:09:46,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:09:46,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:09:46,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:09:46,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:09:46,887 INFO L87 Difference]: Start difference. First operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:09:48,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 13:09:48,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:09:48,298 INFO L93 Difference]: Finished difference Result 245 states and 432 transitions. [2022-12-14 13:09:48,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:09:48,306 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 13:09:48,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:09:48,312 INFO L225 Difference]: With dead ends: 245 [2022-12-14 13:09:48,312 INFO L226 Difference]: Without dead ends: 107 [2022-12-14 13:09:48,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:09:48,316 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 13:09:48,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 13:09:48,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-12-14 13:09:48,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-12-14 13:09:48,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 95 states have (on average 1.2210526315789474) internal successors, (116), 101 states have internal predecessors, (116), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 13:09:48,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 132 transitions. [2022-12-14 13:09:48,344 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 132 transitions. Word has length 8 [2022-12-14 13:09:48,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:09:48,345 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 132 transitions. [2022-12-14 13:09:48,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:09:48,345 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 132 transitions. [2022-12-14 13:09:48,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 13:09:48,346 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:09:48,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:09:48,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:09:48,346 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:09:48,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:09:48,347 INFO L85 PathProgramCache]: Analyzing trace with hash -949222695, now seen corresponding path program 1 times [2022-12-14 13:09:48,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:09:48,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942459119] [2022-12-14 13:09:48,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:09:48,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:09:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:09:48,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:09:48,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:09:48,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942459119] [2022-12-14 13:09:48,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942459119] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:09:48,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:09:48,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:09:48,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956278805] [2022-12-14 13:09:48,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:09:48,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:09:48,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:09:48,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:09:48,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:09:48,584 INFO L87 Difference]: Start difference. First operand 107 states and 132 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:09:49,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:09:49,377 INFO L93 Difference]: Finished difference Result 222 states and 282 transitions. [2022-12-14 13:09:49,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:09:49,379 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-12-14 13:09:49,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:09:49,380 INFO L225 Difference]: With dead ends: 222 [2022-12-14 13:09:49,380 INFO L226 Difference]: Without dead ends: 168 [2022-12-14 13:09:49,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:09:49,381 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 66 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 13:09:49,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 316 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 13:09:49,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-12-14 13:09:49,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 109. [2022-12-14 13:09:49,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 97 states have (on average 1.2164948453608246) internal successors, (118), 103 states have internal predecessors, (118), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 13:09:49,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 134 transitions. [2022-12-14 13:09:49,390 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 134 transitions. Word has length 20 [2022-12-14 13:09:49,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:09:49,391 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 134 transitions. [2022-12-14 13:09:49,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:09:49,391 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 134 transitions. [2022-12-14 13:09:49,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-14 13:09:49,392 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:09:49,392 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:09:49,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:09:49,392 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:09:49,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:09:49,392 INFO L85 PathProgramCache]: Analyzing trace with hash 121394151, now seen corresponding path program 1 times [2022-12-14 13:09:49,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:09:49,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229093264] [2022-12-14 13:09:49,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:09:49,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:09:49,534 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 13:09:49,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1976309075] [2022-12-14 13:09:49,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:09:49,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:09:49,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:09:49,537 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:09:49,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 13:09:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:09:50,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 1659 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 13:09:50,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:09:50,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:09:50,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:09:50,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:09:50,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229093264] [2022-12-14 13:09:50,141 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 13:09:50,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976309075] [2022-12-14 13:09:50,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976309075] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:09:50,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:09:50,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:09:50,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158064155] [2022-12-14 13:09:50,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:09:50,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:09:50,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:09:50,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:09:50,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:09:50,143 INFO L87 Difference]: Start difference. First operand 109 states and 134 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:09:50,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:09:50,910 INFO L93 Difference]: Finished difference Result 260 states and 324 transitions. [2022-12-14 13:09:50,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:09:50,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-12-14 13:09:50,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:09:50,915 INFO L225 Difference]: With dead ends: 260 [2022-12-14 13:09:50,915 INFO L226 Difference]: Without dead ends: 154 [2022-12-14 13:09:50,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:09:50,917 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 43 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 13:09:50,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 238 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 13:09:50,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-12-14 13:09:50,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2022-12-14 13:09:50,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 135 states have (on average 1.2148148148148148) internal successors, (164), 146 states have internal predecessors, (164), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 13:09:50,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 190 transitions. [2022-12-14 13:09:50,925 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 190 transitions. Word has length 44 [2022-12-14 13:09:50,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:09:50,926 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 190 transitions. [2022-12-14 13:09:50,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:09:50,926 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 190 transitions. [2022-12-14 13:09:50,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-14 13:09:50,927 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:09:50,927 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:09:50,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:09:51,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:09:51,129 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:09:51,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:09:51,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1666471257, now seen corresponding path program 1 times [2022-12-14 13:09:51,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:09:51,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577011151] [2022-12-14 13:09:51,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:09:51,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:09:51,223 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 13:09:51,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [928741273] [2022-12-14 13:09:51,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:09:51,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:09:51,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:09:51,225 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:09:51,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 13:09:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:09:51,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 13:09:51,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:09:51,696 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 13:09:51,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:09:51,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:09:51,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577011151] [2022-12-14 13:09:51,697 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 13:09:51,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928741273] [2022-12-14 13:09:51,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928741273] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:09:51,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:09:51,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:09:51,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522738551] [2022-12-14 13:09:51,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:09:51,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:09:51,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:09:51,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:09:51,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:09:51,700 INFO L87 Difference]: Start difference. First operand 152 states and 190 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 13:09:52,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:09:52,048 INFO L93 Difference]: Finished difference Result 258 states and 321 transitions. [2022-12-14 13:09:52,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:09:52,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-12-14 13:09:52,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:09:52,050 INFO L225 Difference]: With dead ends: 258 [2022-12-14 13:09:52,050 INFO L226 Difference]: Without dead ends: 122 [2022-12-14 13:09:52,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:09:52,052 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 163 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 13:09:52,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 153 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 13:09:52,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-12-14 13:09:52,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2022-12-14 13:09:52,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.1818181818181819) internal successors, (130), 116 states have internal predecessors, (130), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 13:09:52,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 146 transitions. [2022-12-14 13:09:52,060 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 146 transitions. Word has length 57 [2022-12-14 13:09:52,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:09:52,060 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 146 transitions. [2022-12-14 13:09:52,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 13:09:52,060 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 146 transitions. [2022-12-14 13:09:52,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 13:09:52,061 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:09:52,061 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:09:52,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 13:09:52,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-12-14 13:09:52,264 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:09:52,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:09:52,266 INFO L85 PathProgramCache]: Analyzing trace with hash 669433128, now seen corresponding path program 1 times [2022-12-14 13:09:52,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:09:52,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238657007] [2022-12-14 13:09:52,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:09:52,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:09:52,339 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 13:09:52,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1900703845] [2022-12-14 13:09:52,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:09:52,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:09:52,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:09:52,341 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:09:52,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 13:10:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:10:25,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 13:10:25,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:10:26,013 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:10:26,013 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:10:26,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:10:26,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238657007] [2022-12-14 13:10:26,014 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 13:10:26,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900703845] [2022-12-14 13:10:26,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900703845] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:10:26,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:10:26,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:10:26,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218872025] [2022-12-14 13:10:26,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:10:26,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:10:26,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:10:26,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:10:26,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:10:26,015 INFO L87 Difference]: Start difference. First operand 122 states and 146 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 13:10:27,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:10:27,201 INFO L93 Difference]: Finished difference Result 227 states and 276 transitions. [2022-12-14 13:10:27,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:10:27,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2022-12-14 13:10:27,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:10:27,206 INFO L225 Difference]: With dead ends: 227 [2022-12-14 13:10:27,207 INFO L226 Difference]: Without dead ends: 124 [2022-12-14 13:10:27,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:10:27,208 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 1 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:10:27,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 347 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 13:10:27,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-12-14 13:10:27,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2022-12-14 13:10:27,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 111 states have (on average 1.1891891891891893) internal successors, (132), 118 states have internal predecessors, (132), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2022-12-14 13:10:27,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 149 transitions. [2022-12-14 13:10:27,214 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 149 transitions. Word has length 64 [2022-12-14 13:10:27,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:10:27,215 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 149 transitions. [2022-12-14 13:10:27,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 13:10:27,215 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 149 transitions. [2022-12-14 13:10:27,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 13:10:27,216 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:10:27,216 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:10:27,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 13:10:27,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:10:27,418 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:10:27,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:10:27,419 INFO L85 PathProgramCache]: Analyzing trace with hash -2127571752, now seen corresponding path program 1 times [2022-12-14 13:10:27,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:10:27,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157669577] [2022-12-14 13:10:27,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:10:27,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:10:27,509 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 13:10:27,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [996781814] [2022-12-14 13:10:27,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:10:27,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:10:27,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:10:27,510 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:10:27,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30508372-7b15-4b34-9637-c614a4cdce2c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 13:10:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:10:43,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 13:10:43,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:10:43,685 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 13:10:43,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:10:43,777 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 13:10:43,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:10:43,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157669577] [2022-12-14 13:10:43,777 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 13:10:43,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996781814] [2022-12-14 13:10:43,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996781814] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:10:43,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1903513461] [2022-12-14 13:10:43,794 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-12-14 13:10:43,794 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:10:43,797 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:10:43,801 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:10:43,801 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:10:43,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:43,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 13:10:43,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 13:10:43,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 13:10:43,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:43,917 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 13:10:43,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 13:10:43,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:43,940 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 13:10:43,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 13:10:43,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:43,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 13:10:43,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:43,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,002 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 13:10:44,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-12-14 13:10:44,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-12-14 13:10:44,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 13:10:44,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-12-14 13:10:44,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9897009 treesize of output 5376288 [2022-12-14 13:10:44,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 8458577 treesize of output 4759834 [2022-12-14 13:10:44,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 13:10:44,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 13:10:44,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 13:10:44,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 13:10:44,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 13:10:44,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 13:10:44,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 13:10:44,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 13:10:44,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,711 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 13:10:44,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-12-14 13:10:44,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,767 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 13:10:44,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-12-14 13:10:44,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:44,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 13:10:44,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 13:10:44,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 13:10:44,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 13:10:44,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-12-14 13:10:44,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-12-14 13:10:44,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-12-14 13:10:45,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 13:10:45,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 13:10:45,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 13:10:45,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-12-14 13:10:45,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-12-14 13:10:45,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 13:10:45,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:10:45,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-12-14 13:10:45,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-12-14 13:10:45,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 13:10:47,483 INFO L217 Elim1Store]: Index analysis took 1861 ms [2022-12-14 13:10:50,705 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-12-14 13:10:50,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 9519777 treesize of output 9519796 [2022-12-14 13:10:51,531 INFO L217 Elim1Store]: Index analysis took 718 ms [2022-12-14 13:10:53,793 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-12-14 13:10:53,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 9519772 treesize of output 9519776