./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_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_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/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_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/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_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/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 765142a1ef820c0c2cf2fa98a3978a1412f5a1196c629c20848264001100dcc9 --- 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 08:14:08,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:14:08,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:14:08,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:14:08,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:14:08,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:14:08,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:14:08,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:14:08,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:14:08,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:14:08,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:14:08,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:14:08,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:14:08,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:14:08,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:14:08,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:14:08,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:14:08,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:14:08,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:14:08,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:14:08,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:14:08,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:14:08,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:14:08,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:14:08,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:14:08,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:14:08,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:14:08,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:14:08,238 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:14:08,239 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:14:08,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:14:08,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:14:08,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:14:08,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:14:08,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:14:08,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:14:08,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:14:08,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:14:08,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:14:08,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:14:08,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:14:08,249 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:14:08,272 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:14:08,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:14:08,272 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:14:08,273 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:14:08,273 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:14:08,274 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:14:08,274 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:14:08,274 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:14:08,274 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:14:08,274 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:14:08,275 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:14:08,275 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:14:08,275 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:14:08,285 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:14:08,285 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:14:08,286 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:14:08,286 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:14:08,286 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:14:08,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:14:08,287 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:14:08,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:14:08,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:14:08,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:14:08,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:14:08,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:14:08,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:14:08,289 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:14:08,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:14:08,290 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:14:08,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:14:08,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:14:08,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:14:08,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:14:08,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:14:08,291 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:14:08,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:14:08,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:14:08,292 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:14:08,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:14:08,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:14:08,293 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:14:08,293 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_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 765142a1ef820c0c2cf2fa98a3978a1412f5a1196c629c20848264001100dcc9 [2022-11-19 08:14:08,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:14:08,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:14:08,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:14:08,571 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:14:08,572 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:14:08,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i [2022-11-19 08:14:08,646 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/data/72ad2f2e9/f02f718383674d6081339a1cb5a71e43/FLAG32fec10bd [2022-11-19 08:14:09,307 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:14:09,308 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i [2022-11-19 08:14:09,345 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/data/72ad2f2e9/f02f718383674d6081339a1cb5a71e43/FLAG32fec10bd [2022-11-19 08:14:09,659 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/data/72ad2f2e9/f02f718383674d6081339a1cb5a71e43 [2022-11-19 08:14:09,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:14:09,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:14:09,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:14:09,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:14:09,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:14:09,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:14:09" (1/1) ... [2022-11-19 08:14:09,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@534d3bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:09, skipping insertion in model container [2022-11-19 08:14:09,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:14:09" (1/1) ... [2022-11-19 08:14:09,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:14:09,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:14:10,164 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_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i[33021,33034] [2022-11-19 08:14:10,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:14:10,336 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:14:10,370 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_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i[33021,33034] [2022-11-19 08:14:10,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:14:10,521 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:14:10,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:10 WrapperNode [2022-11-19 08:14:10,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:14:10,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:14:10,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:14:10,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:14:10,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:10" (1/1) ... [2022-11-19 08:14:10,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:10" (1/1) ... [2022-11-19 08:14:10,652 INFO L138 Inliner]: procedures = 177, calls = 349, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1145 [2022-11-19 08:14:10,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:14:10,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:14:10,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:14:10,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:14:10,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:10" (1/1) ... [2022-11-19 08:14:10,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:10" (1/1) ... [2022-11-19 08:14:10,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:10" (1/1) ... [2022-11-19 08:14:10,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:10" (1/1) ... [2022-11-19 08:14:10,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:10" (1/1) ... [2022-11-19 08:14:10,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:10" (1/1) ... [2022-11-19 08:14:10,770 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:10" (1/1) ... [2022-11-19 08:14:10,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:10" (1/1) ... [2022-11-19 08:14:10,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:14:10,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:14:10,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:14:10,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:14:10,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:10" (1/1) ... [2022-11-19 08:14:10,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:14:10,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:14:10,843 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:14:10,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:14:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:14:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 08:14:10,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 08:14:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:14:10,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:14:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:14:10,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:14:10,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:14:10,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:14:10,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:14:10,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:14:10,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:14:10,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:14:10,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:14:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:14:11,279 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:14:11,282 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:14:13,562 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:14:14,002 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:14:14,002 INFO L300 CfgBuilder]: Removed 60 assume(true) statements. [2022-11-19 08:14:14,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:14:14 BoogieIcfgContainer [2022-11-19 08:14:14,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:14:14,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:14:14,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:14:14,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:14:14,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:14:09" (1/3) ... [2022-11-19 08:14:14,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ea5c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:14:14, skipping insertion in model container [2022-11-19 08:14:14,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:10" (2/3) ... [2022-11-19 08:14:14,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ea5c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:14:14, skipping insertion in model container [2022-11-19 08:14:14,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:14:14" (3/3) ... [2022-11-19 08:14:14,015 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test4-1.i [2022-11-19 08:14:14,035 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:14:14,035 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:14:14,091 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:14:14,098 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;@3f1a27d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:14:14,099 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:14:14,104 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 08:14:14,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:14:14,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:14,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:14:14,113 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:14:14,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:14,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1318725013, now seen corresponding path program 1 times [2022-11-19 08:14:14,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:14:14,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636101368] [2022-11-19 08:14:14,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:14:14,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:14:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:14:14,336 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 08:14:14,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:14:14,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636101368] [2022-11-19 08:14:14,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636101368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:14:14,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:14:14,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:14:14,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896146211] [2022-11-19 08:14:14,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:14:14,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:14:14,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:14:14,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:14:14,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:14:14,380 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 08:14:16,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:14:19,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:14:21,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:14:21,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:14:21,907 INFO L93 Difference]: Finished difference Result 347 states and 628 transitions. [2022-11-19 08:14:21,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:14:21,922 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 08:14:21,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:14:21,934 INFO L225 Difference]: With dead ends: 347 [2022-11-19 08:14:21,934 INFO L226 Difference]: Without dead ends: 220 [2022-11-19 08:14:21,938 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 08:14:21,942 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 97 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s 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, 7.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:14:21,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 310 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-11-19 08:14:21,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-19 08:14:22,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 127. [2022-11-19 08:14:22,011 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 08:14:22,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 163 transitions. [2022-11-19 08:14:22,015 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 163 transitions. Word has length 8 [2022-11-19 08:14:22,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:14:22,016 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 163 transitions. [2022-11-19 08:14:22,016 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 08:14:22,016 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2022-11-19 08:14:22,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-19 08:14:22,020 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:22,020 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 08:14:22,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:14:22,021 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:14:22,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:22,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1742694732, now seen corresponding path program 1 times [2022-11-19 08:14:22,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:14:22,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725980405] [2022-11-19 08:14:22,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:14:22,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:14:22,426 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:14:22,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [664159739] [2022-11-19 08:14:22,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:14:22,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:14:22,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:14:22,436 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:14:22,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:14:23,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:14:23,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:14:23,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:24,089 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 08:14:24,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:14:24,213 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 08:14:24,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:14:24,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725980405] [2022-11-19 08:14:24,213 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:14:24,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664159739] [2022-11-19 08:14:24,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664159739] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:14:24,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1634732333] [2022-11-19 08:14:24,238 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-19 08:14:24,239 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:14:24,243 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:14:24,250 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:14:24,251 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:14:24,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,429 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 08:14:24,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,442 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:14:24,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,464 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:14:24,465 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 08:14:24,525 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:14:24,525 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 08:14:24,544 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 08:14:24,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,570 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 08:14:25,056 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 08:14:25,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,109 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 08:14:25,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,159 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 08:14:25,206 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 08:14:25,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,248 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:14:25,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,265 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:14:25,266 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 08:14:25,312 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 08:14:25,315 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 08:14:25,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,340 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 08:14:25,397 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:14:25,398 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 08:14:25,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,421 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 08:14:25,898 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 08:14:25,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:25,975 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 08:14:26,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:26,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:26,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:26,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:26,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:26,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:26,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:26,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:26,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:26,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:26,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:26,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:26,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:26,030 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 08:14:26,077 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 08:14:26,113 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:14:34,263 WARN L233 SmtUtils]: Spent 5.22s 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 08:14:41,730 WARN L233 SmtUtils]: Spent 5.34s 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 08:14:41,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1634732333] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:14:41,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:14:41,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-19 08:14:41,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476928880] [2022-11-19 08:14:41,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:14:41,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:14:41,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:14:41,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:14:41,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-19 08:14:41,742 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 08:14:44,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:14:48,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:14:49,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:14:49,683 INFO L93 Difference]: Finished difference Result 262 states and 336 transitions. [2022-11-19 08:14:49,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:14:49,684 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 08:14:49,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:14:49,686 INFO L225 Difference]: With dead ends: 262 [2022-11-19 08:14:49,686 INFO L226 Difference]: Without dead ends: 137 [2022-11-19 08:14:49,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-19 08:14:49,688 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 7 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s 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, 7.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:14:49,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 468 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 69 Unchecked, 7.9s Time] [2022-11-19 08:14:49,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-19 08:14:49,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-11-19 08:14:49,714 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 08:14:49,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2022-11-19 08:14:49,717 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 52 [2022-11-19 08:14:49,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:14:49,717 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2022-11-19 08:14:49,718 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 08:14:49,718 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2022-11-19 08:14:49,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-19 08:14:49,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:49,721 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 08:14:49,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:14:49,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-19 08:14:49,936 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:14:49,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:49,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1270953821, now seen corresponding path program 1 times [2022-11-19 08:14:49,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:14:49,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121042600] [2022-11-19 08:14:49,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:14:49,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:14:50,167 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:14:50,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1028788149] [2022-11-19 08:14:50,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:14:50,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:14:50,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:14:50,169 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:14:50,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:14:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:14:51,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:14:51,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:51,790 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 08:14:51,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:14:51,945 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 08:14:51,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:14:51,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121042600] [2022-11-19 08:14:51,946 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:14:51,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028788149] [2022-11-19 08:14:51,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028788149] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:14:51,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2066872048] [2022-11-19 08:14:51,950 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-19 08:14:51,950 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:14:51,951 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:14:51,951 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:14:51,951 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:14:52,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,084 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 08:14:52,137 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:14:52,137 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 08:14:52,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,160 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 08:14:52,170 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 08:14:52,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:14:52,186 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 08:14:52,636 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 08:14:52,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,694 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 08:14:52,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,756 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 08:14:52,804 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 08:14:52,844 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 08:14:52,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,917 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 08:14:52,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:52,981 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 08:14:53,038 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 08:14:53,095 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 08:14:53,185 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 08:14:53,186 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 08:14:53,210 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 08:14:53,250 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 08:14:53,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:53,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:53,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:53,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:53,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:53,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:53,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:53,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:53,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:53,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:53,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:53,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:53,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:53,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:53,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:53,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:53,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:53,321 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 08:14:53,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:53,735 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 08:14:53,790 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:14:53,790 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 08:14:53,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:53,810 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 08:14:53,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:53,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:14:53,823 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 08:14:53,837 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 08:14:54,351 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 08:14:54,369 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 08:14:54,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,429 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 08:14:54,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,484 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 08:14:54,558 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 08:14:54,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,631 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 08:14:54,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,698 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 08:14:54,739 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 08:14:54,815 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 08:14:54,909 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 08:14:54,909 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 08:14:54,930 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 08:14:54,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:54,990 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 08:14:55,037 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 08:14:55,473 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-11-19 08:14:55,617 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:15:03,816 WARN L233 SmtUtils]: Spent 5.13s 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 08:15:12,131 WARN L233 SmtUtils]: Spent 6.18s 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 08:15:22,881 WARN L233 SmtUtils]: Spent 6.56s 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 08:15:36,012 WARN L233 SmtUtils]: Spent 6.95s 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 08:15:49,004 WARN L233 SmtUtils]: Spent 6.75s 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 08:15:49,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2066872048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:49,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:15:49,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-19 08:15:49,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636522666] [2022-11-19 08:15:49,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:49,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 08:15:49,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:15:49,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 08:15:49,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-19 08:15:49,802 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 08:15:52,718 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 08:15:55,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:15:56,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:56,904 INFO L93 Difference]: Finished difference Result 267 states and 342 transitions. [2022-11-19 08:15:56,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 08:15:56,905 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 08:15:56,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:56,907 INFO L225 Difference]: With dead ends: 267 [2022-11-19 08:15:56,907 INFO L226 Difference]: Without dead ends: 142 [2022-11-19 08:15:56,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 54.2s TimeCoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-19 08:15:56,910 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 8 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s 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, 7.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:56,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 647 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 220 Unchecked, 7.0s Time] [2022-11-19 08:15:56,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-19 08:15:56,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-19 08:15:56,951 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 08:15:56,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 179 transitions. [2022-11-19 08:15:56,953 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 179 transitions. Word has length 65 [2022-11-19 08:15:56,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:56,953 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 179 transitions. [2022-11-19 08:15:56,953 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 08:15:56,953 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 179 transitions. [2022-11-19 08:15:56,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-19 08:15:56,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:56,956 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 08:15:56,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:15:57,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:15:57,157 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:15:57,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:57,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1298103213, now seen corresponding path program 1 times [2022-11-19 08:15:57,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:15:57,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041213644] [2022-11-19 08:15:57,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:57,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:15:57,390 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:15:57,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1008880736] [2022-11-19 08:15:57,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:57,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:15:57,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:15:57,393 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:15:57,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd0e0e-e2cc-486f-bbc8-caa48bf1dff5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:15:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:58,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:15:58,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:59,064 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 08:15:59,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:15:59,221 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 08:15:59,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:15:59,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041213644] [2022-11-19 08:15:59,221 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:15:59,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008880736] [2022-11-19 08:15:59,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008880736] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:59,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [630868949] [2022-11-19 08:15:59,226 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-19 08:15:59,226 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:15:59,227 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:15:59,228 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:15:59,228 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:15:59,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,322 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:15:59,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,342 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:15:59,343 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 08:15:59,403 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:15:59,404 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 08:15:59,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,426 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 08:15:59,437 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 08:15:59,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,458 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 08:15:59,841 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 08:15:59,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,902 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 08:15:59,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:59,956 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 08:15:59,997 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 08:16:00,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,092 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 08:16:00,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,156 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 08:16:00,187 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 08:16:00,203 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 08:16:00,254 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 08:16:00,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,303 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 08:16:00,366 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 08:16:00,456 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-19 08:16:00,457 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 08:16:00,555 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 08:16:00,556 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 08:16:00,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 08:16:00,741 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 08:16:00,748 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 08:16:00,770 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 08:16:00,780 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 08:16:00,790 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 08:16:00,814 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 08:16:00,821 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 08:16:00,830 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 08:16:00,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:00,935 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 08:16:00,974 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 08:16:00,998 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 08:16:01,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:01,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:01,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:01,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:01,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:01,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:01,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:01,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:01,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:01,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:01,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:01,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:01,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:16:01,218 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 08:16:01,240 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 08:16:01,260 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 08:16:03,490 INFO L217 Elim1Store]: Index analysis took 1922 ms [2022-11-19 08:16:07,866 INFO L321 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2022-11-19 08:16:07,867 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 08:16:09,425 INFO L217 Elim1Store]: Index analysis took 1383 ms [2022-11-19 08:16:12,763 INFO L321 Elim1Store]: treesize reduction 144, result has 12.7 percent of original size [2022-11-19 08:16:12,765 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 08:16:33,025 WARN L233 SmtUtils]: Spent 20.18s 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 08:16:33,025 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-19 08:16:33,026 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 08:16:33,271 INFO L217 Elim1Store]: Index analysis took 144 ms [2022-11-19 08:17:00,906 WARN L233 SmtUtils]: Spent 27.63s 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 08:17:00,907 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-19 08:17:00,908 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 08:17:01,979 INFO L217 Elim1Store]: Index analysis took 798 ms [2022-11-19 08:17:25,663 WARN L233 SmtUtils]: Spent 22.98s 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 08:17:25,664 INFO L321 Elim1Store]: treesize reduction 2466, result has 32.0 percent of original size [2022-11-19 08:17:25,665 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 08:17:27,366 INFO L217 Elim1Store]: Index analysis took 134 ms [2022-11-19 08:17:28,317 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-19 08:17:28,317 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 08:17:28,448 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 08:17:28,893 INFO L217 Elim1Store]: Index analysis took 326 ms [2022-11-19 08:17:30,154 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:17:30,155 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 08:17:36,938 INFO L217 Elim1Store]: Index analysis took 701 ms