./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS --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 42d34b3801344b79b388ecea52b2e670196aa6b758fe24ea6ecf5c2b8bbf579b --- 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-8393723 [2022-11-19 07:53:36,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:53:36,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:53:36,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:53:36,096 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:53:36,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:53:36,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:53:36,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:53:36,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:53:36,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:53:36,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:53:36,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:53:36,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:53:36,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:53:36,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:53:36,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:53:36,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:53:36,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:53:36,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:53:36,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:53:36,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:53:36,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:53:36,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:53:36,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:53:36,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:53:36,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:53:36,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:53:36,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:53:36,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:53:36,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:53:36,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:53:36,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:53:36,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:53:36,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:53:36,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:53:36,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:53:36,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:53:36,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:53:36,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:53:36,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:53:36,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:53:36,168 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:53:36,216 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:53:36,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:53:36,217 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:53:36,217 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:53:36,218 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:53:36,218 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:53:36,218 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:53:36,226 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:53:36,226 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:53:36,226 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:53:36,228 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:53:36,228 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:53:36,228 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:53:36,228 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:53:36,229 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:53:36,229 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:53:36,229 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:53:36,229 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:53:36,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:53:36,231 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:53:36,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:53:36,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:53:36,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:53:36,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:53:36,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:53:36,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:53:36,233 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:53:36,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:53:36,233 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:53:36,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:53:36,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:53:36,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:53:36,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:53:36,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:53:36,235 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:53:36,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:53:36,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:53:36,235 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:53:36,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:53:36,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:53:36,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:53:36,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42d34b3801344b79b388ecea52b2e670196aa6b758fe24ea6ecf5c2b8bbf579b [2022-11-19 07:53:36,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:53:36,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:53:36,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:53:36,602 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:53:36,603 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:53:36,605 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i [2022-11-19 07:53:36,701 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/data/801e5e2f3/ad432e40a25e4c28ae7e18c3792860e6/FLAGc7b0b8605 [2022-11-19 07:53:37,436 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:53:37,437 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i [2022-11-19 07:53:37,454 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/data/801e5e2f3/ad432e40a25e4c28ae7e18c3792860e6/FLAGc7b0b8605 [2022-11-19 07:53:37,619 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/data/801e5e2f3/ad432e40a25e4c28ae7e18c3792860e6 [2022-11-19 07:53:37,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:53:37,625 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:53:37,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:53:37,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:53:37,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:53:37,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:37" (1/1) ... [2022-11-19 07:53:37,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a32b1af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37, skipping insertion in model container [2022-11-19 07:53:37,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:37" (1/1) ... [2022-11-19 07:53:37,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:53:37,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:53:38,317 WARN L234 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_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i[33021,33034] [2022-11-19 07:53:38,506 WARN L234 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_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i[45234,45247] [2022-11-19 07:53:38,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:53:38,535 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:53:38,591 WARN L234 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_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i[33021,33034] [2022-11-19 07:53:38,646 WARN L234 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_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i[45234,45247] [2022-11-19 07:53:38,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:53:38,721 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:53:38,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38 WrapperNode [2022-11-19 07:53:38,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:53:38,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:53:38,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:53:38,724 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:53:38,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (1/1) ... [2022-11-19 07:53:38,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (1/1) ... [2022-11-19 07:53:38,869 INFO L138 Inliner]: procedures = 177, calls = 348, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1147 [2022-11-19 07:53:38,869 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:53:38,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:53:38,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:53:38,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:53:38,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (1/1) ... [2022-11-19 07:53:38,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (1/1) ... [2022-11-19 07:53:38,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (1/1) ... [2022-11-19 07:53:38,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (1/1) ... [2022-11-19 07:53:38,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (1/1) ... [2022-11-19 07:53:38,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (1/1) ... [2022-11-19 07:53:38,963 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (1/1) ... [2022-11-19 07:53:38,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (1/1) ... [2022-11-19 07:53:38,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:53:38,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:53:38,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:53:38,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:53:38,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (1/1) ... [2022-11-19 07:53:38,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:53:39,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:53:39,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:53:39,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:53:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:53:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 07:53:39,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 07:53:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:53:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:53:39,077 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:53:39,078 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2022-11-19 07:53:39,078 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2022-11-19 07:53:39,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:53:39,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:53:39,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:53:39,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:53:39,080 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 07:53:39,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:53:39,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:53:39,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:53:39,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:53:39,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:53:39,394 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:53:39,396 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:53:41,746 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:53:42,325 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:53:42,326 INFO L300 CfgBuilder]: Removed 71 assume(true) statements. [2022-11-19 07:53:42,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:42 BoogieIcfgContainer [2022-11-19 07:53:42,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:53:42,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:53:42,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:53:42,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:53:42,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:53:37" (1/3) ... [2022-11-19 07:53:42,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791083cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:42, skipping insertion in model container [2022-11-19 07:53:42,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (2/3) ... [2022-11-19 07:53:42,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791083cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:42, skipping insertion in model container [2022-11-19 07:53:42,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:42" (3/3) ... [2022-11-19 07:53:42,347 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test8-2.i [2022-11-19 07:53:42,371 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:53:42,371 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 07:53:42,467 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:53:42,476 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;@35f4e5cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:53:42,477 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 07:53:42,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 136 states have (on average 1.7941176470588236) internal successors, (244), 153 states have internal predecessors, (244), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-19 07:53:42,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 07:53:42,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:42,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:42,495 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:42,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:42,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1439031123, now seen corresponding path program 1 times [2022-11-19 07:53:42,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:42,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616347425] [2022-11-19 07:53:42,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:42,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:42,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:53:42,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:42,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616347425] [2022-11-19 07:53:42,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616347425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:42,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:42,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:53:42,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818624831] [2022-11-19 07:53:42,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:42,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:53:42,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:42,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:53:42,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:53:42,831 INFO L87 Difference]: Start difference. First operand has 162 states, 136 states have (on average 1.7941176470588236) internal successors, (244), 153 states have internal predecessors, (244), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:53:44,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:44,313 INFO L93 Difference]: Finished difference Result 323 states and 584 transitions. [2022-11-19 07:53:44,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:53:44,317 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 07:53:44,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:44,343 INFO L225 Difference]: With dead ends: 323 [2022-11-19 07:53:44,344 INFO L226 Difference]: Without dead ends: 146 [2022-11-19 07:53:44,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:53:44,359 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:44,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 189 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-19 07:53:44,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-19 07:53:44,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-11-19 07:53:44,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 121 states have (on average 1.2727272727272727) internal successors, (154), 137 states have internal predecessors, (154), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-19 07:53:44,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 194 transitions. [2022-11-19 07:53:44,459 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 194 transitions. Word has length 8 [2022-11-19 07:53:44,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:44,459 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 194 transitions. [2022-11-19 07:53:44,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:53:44,460 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 194 transitions. [2022-11-19 07:53:44,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 07:53:44,462 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:44,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:44,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:53:44,463 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:44,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:44,464 INFO L85 PathProgramCache]: Analyzing trace with hash 607279358, now seen corresponding path program 1 times [2022-11-19 07:53:44,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:44,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239448920] [2022-11-19 07:53:44,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:44,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:45,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:53:45,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:45,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239448920] [2022-11-19 07:53:45,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239448920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:45,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:45,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:53:45,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562797633] [2022-11-19 07:53:45,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:45,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:53:45,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:45,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:53:45,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:53:45,084 INFO L87 Difference]: Start difference. First operand 146 states and 194 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:53:46,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:46,446 INFO L93 Difference]: Finished difference Result 293 states and 390 transitions. [2022-11-19 07:53:46,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:53:46,447 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-19 07:53:46,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:46,449 INFO L225 Difference]: With dead ends: 293 [2022-11-19 07:53:46,449 INFO L226 Difference]: Without dead ends: 202 [2022-11-19 07:53:46,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:53:46,452 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 60 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:46,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 480 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-19 07:53:46,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-11-19 07:53:46,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 148. [2022-11-19 07:53:46,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 123 states have (on average 1.2682926829268293) internal successors, (156), 139 states have internal predecessors, (156), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-19 07:53:46,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2022-11-19 07:53:46,469 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 20 [2022-11-19 07:53:46,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:46,470 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2022-11-19 07:53:46,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:53:46,470 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2022-11-19 07:53:46,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-19 07:53:46,472 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:46,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:46,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:53:46,473 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:46,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:46,473 INFO L85 PathProgramCache]: Analyzing trace with hash 308617378, now seen corresponding path program 1 times [2022-11-19 07:53:46,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:46,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111463539] [2022-11-19 07:53:46,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:46,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:46,687 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:53:46,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [278517678] [2022-11-19 07:53:46,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:46,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:53:46,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:53:46,695 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:53:46,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:53:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:47,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 1597 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:53:47,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:53:47,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:53:47,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:53:47,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:47,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111463539] [2022-11-19 07:53:47,709 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:53:47,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278517678] [2022-11-19 07:53:47,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278517678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:47,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:47,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:53:47,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719223672] [2022-11-19 07:53:47,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:47,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:53:47,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:47,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:53:47,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:47,713 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:53:49,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:49,282 INFO L93 Difference]: Finished difference Result 341 states and 444 transitions. [2022-11-19 07:53:49,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:53:49,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-19 07:53:49,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:49,284 INFO L225 Difference]: With dead ends: 341 [2022-11-19 07:53:49,285 INFO L226 Difference]: Without dead ends: 196 [2022-11-19 07:53:49,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:49,286 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 45 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:49,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 341 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-19 07:53:49,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-11-19 07:53:49,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2022-11-19 07:53:49,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 167 states have (on average 1.2275449101796407) internal successors, (205), 183 states have internal predecessors, (205), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2022-11-19 07:53:49,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 247 transitions. [2022-11-19 07:53:49,305 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 247 transitions. Word has length 32 [2022-11-19 07:53:49,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:49,306 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 247 transitions. [2022-11-19 07:53:49,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:53:49,306 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 247 transitions. [2022-11-19 07:53:49,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-19 07:53:49,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:49,308 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 07:53:49,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:53:49,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:53:49,519 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:49,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:49,520 INFO L85 PathProgramCache]: Analyzing trace with hash 922198994, now seen corresponding path program 1 times [2022-11-19 07:53:49,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:49,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22756729] [2022-11-19 07:53:49,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:49,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:49,592 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:53:49,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [666058929] [2022-11-19 07:53:49,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:49,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:53:49,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:53:49,595 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:53:49,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:54:35,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:54:35,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 07:54:35,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:54:35,812 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:54:35,812 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:54:35,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:54:35,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22756729] [2022-11-19 07:54:35,813 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:54:35,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666058929] [2022-11-19 07:54:35,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666058929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:54:35,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:54:35,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:54:35,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249598938] [2022-11-19 07:54:35,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:54:35,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:54:35,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:54:35,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:54:35,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:54:35,816 INFO L87 Difference]: Start difference. First operand 193 states and 247 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:54:38,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:54:38,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:54:38,300 INFO L93 Difference]: Finished difference Result 372 states and 482 transitions. [2022-11-19 07:54:38,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:54:38,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2022-11-19 07:54:38,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:54:38,306 INFO L225 Difference]: With dead ends: 372 [2022-11-19 07:54:38,306 INFO L226 Difference]: Without dead ends: 195 [2022-11-19 07:54:38,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:54:38,308 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 1 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:54:38,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 521 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-19 07:54:38,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-19 07:54:38,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2022-11-19 07:54:38,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 168 states have (on average 1.2321428571428572) internal successors, (207), 185 states have internal predecessors, (207), 21 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2022-11-19 07:54:38,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 250 transitions. [2022-11-19 07:54:38,326 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 250 transitions. Word has length 45 [2022-11-19 07:54:38,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:54:38,327 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 250 transitions. [2022-11-19 07:54:38,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:54:38,328 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 250 transitions. [2022-11-19 07:54:38,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-19 07:54:38,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:54:38,330 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] [2022-11-19 07:54:38,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:54:38,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:54:38,543 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:54:38,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:54:38,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1894472968, now seen corresponding path program 1 times [2022-11-19 07:54:38,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:54:38,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428355319] [2022-11-19 07:54:38,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:54:38,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:54:38,615 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:54:38,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [679944698] [2022-11-19 07:54:38,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:54:38,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:54:38,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:54:38,617 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:54:38,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ff50f-8d52-4aef-90bd-f155aa2a493b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:54:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:54:56,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 07:54:56,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:54:56,370 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:54:56,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:54:56,485 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:54:56,486 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:54:56,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428355319] [2022-11-19 07:54:56,486 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:54:56,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679944698] [2022-11-19 07:54:56,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679944698] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:54:56,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1963372152] [2022-11-19 07:54:56,511 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-19 07:54:56,512 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:54:56,516 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:54:56,523 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:54:56,524 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:54:56,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:54:56,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:54:56,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:56,753 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:54:56,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-19 07:54:56,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:56,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-19 07:54:56,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:56,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 07:54:56,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:56,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:56,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:56,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:56,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:56,881 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:54:56,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2022-11-19 07:54:56,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:56,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:56,954 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 07:54:56,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-19 07:54:57,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:54:57,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:54:57,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,093 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:54:57,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-19 07:54:57,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9897009 treesize of output 5376288 [2022-11-19 07:54:57,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 8458577 treesize of output 4759834 [2022-11-19 07:54:57,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 07:54:57,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 07:54:57,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:57,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-19 07:54:58,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-19 07:54:58,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 07:54:58,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 07:54:58,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 07:54:58,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,333 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 07:54:58,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-19 07:54:58,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2022-11-19 07:54:58,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 07:54:58,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:58,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-19 07:54:58,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:54:58,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:54:58,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:54:58,790 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:54:58,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-11-19 07:54:58,828 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-19 07:54:58,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-11-19 07:54:58,863 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:54:58,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-11-19 07:54:58,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 07:54:58,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 07:54:58,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:54:59,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-19 07:54:59,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-19 07:54:59,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-19 07:54:59,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:54:59,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-19 07:54:59,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-19 07:54:59,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-19 07:55:01,439 INFO L217 Elim1Store]: Index analysis took 1628 ms [2022-11-19 07:55:06,477 WARN L233 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:55:06,478 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-19 07:55:06,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 9519777 treesize of output 9519796 [2022-11-19 07:55:07,764 INFO L217 Elim1Store]: Index analysis took 1068 ms [2022-11-19 07:55:08,609 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-19 07:55:08,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 9519772 treesize of output 9519776 [2022-11-19 07:58:03,166 WARN L233 SmtUtils]: Spent 2.91m on a formula simplification. DAG size of input: 175 DAG size of output: 92 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:58:03,167 INFO L321 Elim1Store]: treesize reduction 1193, result has 25.3 percent of original size [2022-11-19 07:58:03,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 13 case distinctions, treesize of input 9890 treesize of output 6802 [2022-11-19 07:58:23,642 WARN L233 SmtUtils]: Spent 20.20s on a formula simplification. DAG size of input: 80 DAG size of output: 13 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:58:23,643 INFO L321 Elim1Store]: treesize reduction 252, result has 6.7 percent of original size [2022-11-19 07:58:23,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 10021 treesize of output 9263 [2022-11-19 07:58:24,157 INFO L217 Elim1Store]: Index analysis took 223 ms [2022-11-19 07:59:47,942 WARN L233 SmtUtils]: Spent 1.40m on a formula simplification. DAG size of input: 91 DAG size of output: 46 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:59:47,942 INFO L321 Elim1Store]: treesize reduction 338, result has 31.4 percent of original size [2022-11-19 07:59:47,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 10438 treesize of output 9115 [2022-11-19 07:59:55,308 INFO L217 Elim1Store]: Index analysis took 5222 ms [2022-11-19 08:03:52,897 WARN L233 SmtUtils]: Spent 3.94m on a formula simplification. DAG size of input: 408 DAG size of output: 225 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:03:52,899 INFO L321 Elim1Store]: treesize reduction 11269, result has 26.7 percent of original size [2022-11-19 08:03:52,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 9192 treesize of output 12130