./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-1.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_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/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_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/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_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/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 9ddeff00ba0e288e2e7b04a6005a0db991f8cee358fe3ef021af7107ab321b8e --- 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 08:08:31,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:08:31,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:08:31,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:08:31,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:08:31,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:08:31,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:08:31,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:08:31,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:08:31,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:08:31,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:08:31,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:08:31,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:08:31,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:08:31,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:08:31,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:08:31,303 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:08:31,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:08:31,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:08:31,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:08:31,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:08:31,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:08:31,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:08:31,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:08:31,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:08:31,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:08:31,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:08:31,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:08:31,333 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:08:31,334 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:08:31,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:08:31,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:08:31,338 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:08:31,339 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:08:31,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:08:31,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:08:31,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:08:31,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:08:31,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:08:31,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:08:31,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:08:31,346 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:08:31,393 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:08:31,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:08:31,394 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:08:31,394 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:08:31,395 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:08:31,396 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:08:31,396 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:08:31,396 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:08:31,397 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:08:31,397 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:08:31,398 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:08:31,398 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:08:31,399 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:08:31,399 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:08:31,399 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:08:31,400 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:08:31,400 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:08:31,400 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:08:31,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:08:31,402 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:08:31,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:08:31,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:08:31,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:08:31,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:08:31,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:08:31,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:08:31,404 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:08:31,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:08:31,404 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:08:31,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:08:31,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:08:31,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:08:31,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:08:31,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:08:31,406 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:08:31,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:08:31,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:08:31,407 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:08:31,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:08:31,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:08:31,408 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:08:31,409 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_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ddeff00ba0e288e2e7b04a6005a0db991f8cee358fe3ef021af7107ab321b8e [2022-11-19 08:08:31,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:08:31,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:08:31,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:08:31,795 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:08:31,796 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:08:31,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-1.i [2022-11-19 08:08:31,872 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/data/5f30cca41/b4eae62035154f5b911be25aff8463da/FLAGfae0d6957 [2022-11-19 08:08:32,487 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:08:32,487 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-1.i [2022-11-19 08:08:32,521 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/data/5f30cca41/b4eae62035154f5b911be25aff8463da/FLAGfae0d6957 [2022-11-19 08:08:32,729 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/data/5f30cca41/b4eae62035154f5b911be25aff8463da [2022-11-19 08:08:32,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:08:32,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:08:32,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:08:32,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:08:32,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:08:32,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:08:32" (1/1) ... [2022-11-19 08:08:32,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77494886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:32, skipping insertion in model container [2022-11-19 08:08:32,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:08:32" (1/1) ... [2022-11-19 08:08:32,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:08:32,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:08:33,278 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_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-1.i[33021,33034] [2022-11-19 08:08:33,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:08:33,456 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:08:33,482 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_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-1.i[33021,33034] [2022-11-19 08:08:33,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:08:33,620 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:08:33,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:33 WrapperNode [2022-11-19 08:08:33,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:08:33,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:08:33,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:08:33,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:08:33,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:33" (1/1) ... [2022-11-19 08:08:33,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:33" (1/1) ... [2022-11-19 08:08:33,746 INFO L138 Inliner]: procedures = 177, calls = 349, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1145 [2022-11-19 08:08:33,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:08:33,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:08:33,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:08:33,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:08:33,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:33" (1/1) ... [2022-11-19 08:08:33,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:33" (1/1) ... [2022-11-19 08:08:33,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:33" (1/1) ... [2022-11-19 08:08:33,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:33" (1/1) ... [2022-11-19 08:08:33,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:33" (1/1) ... [2022-11-19 08:08:33,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:33" (1/1) ... [2022-11-19 08:08:33,863 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:33" (1/1) ... [2022-11-19 08:08:33,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:33" (1/1) ... [2022-11-19 08:08:33,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:08:33,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:08:33,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:08:33,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:08:33,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:33" (1/1) ... [2022-11-19 08:08:33,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:08:33,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:08:33,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:08:33,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:08:33,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:08:33,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 08:08:33,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 08:08:33,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:08:33,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:08:33,955 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:08:33,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:08:33,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:08:33,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:08:33,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:08:33,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:08:33,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:08:33,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:08:33,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:08:33,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:08:34,326 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:08:34,329 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:08:36,723 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:08:37,264 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:08:37,264 INFO L300 CfgBuilder]: Removed 60 assume(true) statements. [2022-11-19 08:08:37,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:08:37 BoogieIcfgContainer [2022-11-19 08:08:37,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:08:37,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:08:37,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:08:37,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:08:37,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:08:32" (1/3) ... [2022-11-19 08:08:37,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8e8301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:08:37, skipping insertion in model container [2022-11-19 08:08:37,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:33" (2/3) ... [2022-11-19 08:08:37,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8e8301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:08:37, skipping insertion in model container [2022-11-19 08:08:37,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:08:37" (3/3) ... [2022-11-19 08:08:37,279 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test4-1.i [2022-11-19 08:08:37,299 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:08:37,299 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:08:37,389 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:08:37,398 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;@2acb0747, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:08:37,398 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:08:37,404 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 107 states have (on average 1.794392523364486) internal successors, (192), 118 states have internal predecessors, (192), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-19 08:08:37,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:08:37,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:08:37,414 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:08:37,415 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:08:37,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:08:37,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1318725013, now seen corresponding path program 1 times [2022-11-19 08:08:37,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:08:37,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042515377] [2022-11-19 08:08:37,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:08:37,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:08:37,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:08:37,684 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 08:08:37,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:08:37,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042515377] [2022-11-19 08:08:37,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042515377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:08:37,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:08:37,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:08:37,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706677587] [2022-11-19 08:08:37,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:08:37,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:08:37,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:08:37,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:08:37,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:08:37,722 INFO L87 Difference]: Start difference. First operand has 127 states, 107 states have (on average 1.794392523364486) internal successors, (192), 118 states have internal predecessors, (192), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:08:40,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:08:42,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:08:44,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:08:44,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:08:44,612 INFO L93 Difference]: Finished difference Result 347 states and 628 transitions. [2022-11-19 08:08:44,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:08:44,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 08:08:44,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:08:44,642 INFO L225 Difference]: With dead ends: 347 [2022-11-19 08:08:44,643 INFO L226 Difference]: Without dead ends: 220 [2022-11-19 08:08:44,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:08:44,655 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 97 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:08:44,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 310 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-11-19 08:08:44,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-19 08:08:44,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 127. [2022-11-19 08:08:44,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 108 states have (on average 1.212962962962963) internal successors, (131), 118 states have internal predecessors, (131), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-19 08:08:44,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 163 transitions. [2022-11-19 08:08:44,717 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 163 transitions. Word has length 8 [2022-11-19 08:08:44,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:08:44,718 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 163 transitions. [2022-11-19 08:08:44,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:08:44,718 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2022-11-19 08:08:44,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-19 08:08:44,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:08:44,721 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:08:44,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:08:44,722 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:08:44,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:08:44,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1742694732, now seen corresponding path program 1 times [2022-11-19 08:08:44,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:08:44,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741951889] [2022-11-19 08:08:44,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:08:44,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:08:45,065 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:08:45,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [247284194] [2022-11-19 08:08:45,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:08:45,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:08:45,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:08:45,075 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:08:45,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:08:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:08:46,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:08:46,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:08:46,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:08:46,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:08:46,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:08:46,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:08:46,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741951889] [2022-11-19 08:08:46,824 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:08:46,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247284194] [2022-11-19 08:08:46,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247284194] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:08:46,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [430067534] [2022-11-19 08:08:46,845 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-19 08:08:46,845 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:08:46,849 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:08:46,854 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:08:46,855 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:08:46,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:46,996 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 08:08:47,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,007 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:08:47,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,025 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:08:47,026 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 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-19 08:08:47,075 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:08:47,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 08:08:47,091 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 08:08:47,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:08:47,535 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 08:08:47,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 08:08:47,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-19 08:08:47,728 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 08:08:47,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,771 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:08:47,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,788 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:08:47,789 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 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-19 08:08:47,832 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 08:08:47,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-19 08:08:47,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,858 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 08:08:47,910 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:08:47,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 08:08:47,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:47,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:08:48,379 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 08:08:48,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 08:08:48,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:08:48,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-19 08:08:48,539 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 08:08:48,573 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:08:56,638 WARN L233 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 223 DAG size of output: 212 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:09:04,028 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:09:04,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [430067534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:04,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:09:04,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-19 08:09:04,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468122147] [2022-11-19 08:09:04,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:04,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:09:04,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:04,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:09:04,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-19 08:09:04,051 INFO L87 Difference]: Start difference. First operand 127 states and 163 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:09,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:09:09,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:09,493 INFO L93 Difference]: Finished difference Result 262 states and 336 transitions. [2022-11-19 08:09:09,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:09:09,494 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-11-19 08:09:09,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:09,495 INFO L225 Difference]: With dead ends: 262 [2022-11-19 08:09:09,496 INFO L226 Difference]: Without dead ends: 137 [2022-11-19 08:09:09,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-19 08:09:09,498 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 7 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 69 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:09,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 468 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 69 Unchecked, 5.4s Time] [2022-11-19 08:09:09,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-19 08:09:09,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-11-19 08:09:09,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 118 states have (on average 1.194915254237288) internal successors, (141), 128 states have internal predecessors, (141), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-19 08:09:09,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2022-11-19 08:09:09,561 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 52 [2022-11-19 08:09:09,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:09,562 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2022-11-19 08:09:09,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:09,563 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2022-11-19 08:09:09,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-19 08:09:09,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:09,568 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:09,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:09,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:09:09,791 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:09:09,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:09,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1270953821, now seen corresponding path program 1 times [2022-11-19 08:09:09,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:09,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983968383] [2022-11-19 08:09:09,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:09,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:10,020 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:09:10,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [992713453] [2022-11-19 08:09:10,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:10,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:09:10,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:09:10,022 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:09:10,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:09:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:11,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:09:11,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:11,335 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 08:09:11,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:09:11,464 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 08:09:11,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:11,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983968383] [2022-11-19 08:09:11,465 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:09:11,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992713453] [2022-11-19 08:09:11,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992713453] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:09:11,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [897340928] [2022-11-19 08:09:11,469 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-19 08:09:11,469 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:09:11,469 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:09:11,470 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:09:11,470 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:09:11,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:11,565 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 08:09:11,607 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:09:11,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 08:09:11,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:11,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:09:11,633 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 08:09:11,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:11,645 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:09:11,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-19 08:09:11,946 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 08:09:11,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:11,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:11,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:11,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:11,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:11,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:11,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:11,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:11,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:11,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:11,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:11,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:11,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 08:09:12,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-19 08:09:12,102 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 08:09:12,134 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 08:09:12,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:09:12,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:09:12,286 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 08:09:12,332 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 08:09:12,407 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 08:09:12,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-19 08:09:12,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-11-19 08:09:12,451 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 08:09:12,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:09:12,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,806 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 08:09:12,846 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:09:12,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 08:09:12,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:09:12,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:12,873 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:09:12,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-19 08:09:12,884 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 08:09:13,244 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 08:09:13,264 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 08:09:13,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 08:09:13,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-19 08:09:13,416 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 08:09:13,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:09:13,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:09:13,559 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 08:09:13,620 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 08:09:13,693 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 08:09:13,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-19 08:09:13,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-11-19 08:09:13,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:09:13,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:09:13,800 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 08:09:14,131 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-11-19 08:09:14,236 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:09:22,362 WARN L233 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 223 DAG size of output: 212 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:09:30,904 WARN L233 SmtUtils]: Spent 6.45s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:09:41,094 WARN L233 SmtUtils]: Spent 5.98s on a formula simplification. DAG size of input: 250 DAG size of output: 240 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:09:54,266 WARN L233 SmtUtils]: Spent 6.99s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:10:07,701 WARN L233 SmtUtils]: Spent 7.23s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:10:08,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [897340928] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:10:08,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:10:08,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-19 08:10:08,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704775283] [2022-11-19 08:10:08,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:10:08,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 08:10:08,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:10:08,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 08:10:08,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-19 08:10:08,589 INFO L87 Difference]: Start difference. First operand 137 states and 173 transitions. Second operand has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 08:10:11,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:10:14,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:10:15,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:10:16,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:16,322 INFO L93 Difference]: Finished difference Result 267 states and 342 transitions. [2022-11-19 08:10:16,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 08:10:16,323 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 65 [2022-11-19 08:10:16,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:16,325 INFO L225 Difference]: With dead ends: 267 [2022-11-19 08:10:16,325 INFO L226 Difference]: Without dead ends: 142 [2022-11-19 08:10:16,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 54.3s TimeCoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-19 08:10:16,327 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 8 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 220 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:16,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 647 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 220 Unchecked, 7.7s Time] [2022-11-19 08:10:16,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-19 08:10:16,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-19 08:10:16,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 122 states have (on average 1.1885245901639345) internal successors, (145), 132 states have internal predecessors, (145), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-19 08:10:16,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 179 transitions. [2022-11-19 08:10:16,367 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 179 transitions. Word has length 65 [2022-11-19 08:10:16,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:16,368 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 179 transitions. [2022-11-19 08:10:16,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 08:10:16,368 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 179 transitions. [2022-11-19 08:10:16,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-19 08:10:16,371 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:16,371 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:16,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:16,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:10:16,585 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:10:16,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:16,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1298103213, now seen corresponding path program 1 times [2022-11-19 08:10:16,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:10:16,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836167407] [2022-11-19 08:10:16,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:10:16,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:10:16,774 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:10:16,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1291044552] [2022-11-19 08:10:16,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:10:16,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:10:16,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:10:16,776 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:10:16,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d8b304-b7aa-4504-b244-279bb8ce4ca8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:10:18,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:10:18,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:10:18,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:18,458 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 08:10:18,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:18,613 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 08:10:18,613 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:10:18,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836167407] [2022-11-19 08:10:18,613 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:10:18,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291044552] [2022-11-19 08:10:18,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291044552] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:18,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1213770013] [2022-11-19 08:10:18,620 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-19 08:10:18,620 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:10:18,621 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:10:18,621 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:10:18,621 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:10:18,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:18,720 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:10:18,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:18,741 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:10:18,742 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 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-19 08:10:18,803 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:10:18,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 08:10:18,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:18,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:10:18,837 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 08:10:18,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:18,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:10:19,219 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 08:10:19,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 08:10:19,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-19 08:10:19,379 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 08:10:19,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:10:19,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:10:19,599 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 08:10:19,615 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 08:10:19,665 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 08:10:19,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:19,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:10:19,762 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 08:10:19,850 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-19 08:10:19,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 66 [2022-11-19 08:10:19,957 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 08:10:19,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-19 08:10:20,153 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 08:10:20,160 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 08:10:20,167 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 08:10:20,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-19 08:10:20,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-19 08:10:20,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-19 08:10:20,232 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 08:10:20,239 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 08:10:20,248 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 08:10:20,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-19 08:10:20,383 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 08:10:20,404 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 08:10:20,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:10:20,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-19 08:10:20,655 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 08:10:20,674 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 08:10:22,094 INFO L217 Elim1Store]: Index analysis took 1050 ms [2022-11-19 08:10:30,067 WARN L233 SmtUtils]: Spent 7.97s on a formula simplification. DAG size of input: 60 DAG size of output: 18 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:10:30,068 INFO L321 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2022-11-19 08:10:30,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 10752670 treesize of output 10752673 [2022-11-19 08:10:32,622 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |v_ULTIMATE.start_main_#t~malloc40#1.base_4| |ULTIMATE.start_main_~user~0#1.base|) [2022-11-19 08:10:32,876 INFO L217 Elim1Store]: Index analysis took 2656 ms [2022-11-19 08:10:37,223 INFO L321 Elim1Store]: treesize reduction 144, result has 12.7 percent of original size [2022-11-19 08:10:37,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 10752675 treesize of output 10752677 [2022-11-19 08:10:51,768 WARN L233 SmtUtils]: Spent 14.48s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:10:51,768 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-19 08:10:51,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1481 [2022-11-19 08:11:14,994 WARN L233 SmtUtils]: Spent 23.00s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:11:14,995 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-19 08:11:14,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1829 [2022-11-19 08:11:15,827 INFO L217 Elim1Store]: Index analysis took 569 ms [2022-11-19 08:11:34,802 WARN L233 SmtUtils]: Spent 18.48s on a formula simplification. DAG size of input: 249 DAG size of output: 147 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:11:34,803 INFO L321 Elim1Store]: treesize reduction 2466, result has 32.0 percent of original size [2022-11-19 08:11:34,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 2097 [2022-11-19 08:11:36,130 INFO L217 Elim1Store]: Index analysis took 109 ms [2022-11-19 08:11:36,632 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-19 08:11:36,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 73 [2022-11-19 08:11:36,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 08:11:37,139 INFO L217 Elim1Store]: Index analysis took 255 ms [2022-11-19 08:11:38,218 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:11:38,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 94 [2022-11-19 08:11:44,039 INFO L217 Elim1Store]: Index analysis took 671 ms