./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1447114af8a4b489e3ec713f117f7a92d9cc93e5175903910b61bfe512c41aed --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 12:21:33,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:21:33,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:21:33,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:21:33,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:21:33,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:21:33,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:21:33,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:21:33,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:21:33,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:21:33,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:21:33,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:21:33,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:21:33,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:21:33,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:21:33,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:21:33,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:21:33,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:21:33,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:21:33,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:21:33,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:21:33,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:21:33,395 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:21:33,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:21:33,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:21:33,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:21:33,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:21:33,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:21:33,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:21:33,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:21:33,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:21:33,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:21:33,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:21:33,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:21:33,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:21:33,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:21:33,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:21:33,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:21:33,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:21:33,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:21:33,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:21:33,407 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 12:21:33,427 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:21:33,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:21:33,428 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:21:33,428 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:21:33,429 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:21:33,429 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:21:33,429 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:21:33,429 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:21:33,429 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:21:33,429 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:21:33,430 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:21:33,430 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:21:33,430 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:21:33,430 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:21:33,430 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:21:33,430 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:21:33,431 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:21:33,431 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:21:33,431 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:21:33,432 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 12:21:33,432 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 12:21:33,432 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:21:33,432 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 12:21:33,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:21:33,432 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:21:33,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:21:33,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:21:33,433 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 12:21:33,433 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 12:21:33,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:21:33,433 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:21:33,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:21:33,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:21:33,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:21:33,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:21:33,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:21:33,434 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:21:33,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:21:33,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:21:33,435 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:21:33,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:21:33,435 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:21:33,435 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:21:33,435 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_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1447114af8a4b489e3ec713f117f7a92d9cc93e5175903910b61bfe512c41aed [2022-12-14 12:21:33,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:21:33,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:21:33,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:21:33,647 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:21:33,648 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:21:33,649 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-2.i [2022-12-14 12:21:36,204 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:21:36,383 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:21:36,383 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-2.i [2022-12-14 12:21:36,393 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/data/bb0ea3055/49708872cccc4ab9b9da8c0ab883bc37/FLAGa25d6e897 [2022-12-14 12:21:36,403 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/data/bb0ea3055/49708872cccc4ab9b9da8c0ab883bc37 [2022-12-14 12:21:36,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:21:36,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:21:36,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:21:36,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:21:36,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:21:36,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:21:36" (1/1) ... [2022-12-14 12:21:36,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@326ae380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:21:36, skipping insertion in model container [2022-12-14 12:21:36,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:21:36" (1/1) ... [2022-12-14 12:21:36,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:21:36,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:21:36,705 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-2.i[33021,33034] [2022-12-14 12:21:36,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:21:36,768 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:21:36,790 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-2.i[33021,33034] [2022-12-14 12:21:36,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:21:36,867 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:21:36,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:21:36 WrapperNode [2022-12-14 12:21:36,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:21:36,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:21:36,869 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:21:36,869 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:21:36,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:21:36" (1/1) ... [2022-12-14 12:21:36,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:21:36" (1/1) ... [2022-12-14 12:21:36,916 INFO L138 Inliner]: procedures = 177, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 778 [2022-12-14 12:21:36,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:21:36,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:21:36,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:21:36,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:21:36,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:21:36" (1/1) ... [2022-12-14 12:21:36,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:21:36" (1/1) ... [2022-12-14 12:21:36,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:21:36" (1/1) ... [2022-12-14 12:21:36,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:21:36" (1/1) ... [2022-12-14 12:21:36,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:21:36" (1/1) ... [2022-12-14 12:21:36,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:21:36" (1/1) ... [2022-12-14 12:21:36,957 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:21:36" (1/1) ... [2022-12-14 12:21:36,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:21:36" (1/1) ... [2022-12-14 12:21:36,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:21:36,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:21:36,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:21:36,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:21:36,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:21:36" (1/1) ... [2022-12-14 12:21:36,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:21:36,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:21:36,992 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:21:36,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:21:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 12:21:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 12:21:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 12:21:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 12:21:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 12:21:37,029 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 12:21:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 12:21:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:21:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 12:21:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 12:21:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 12:21:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 12:21:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:21:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:21:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:21:37,180 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:21:37,182 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:21:38,019 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:21:38,274 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:21:38,274 INFO L300 CfgBuilder]: Removed 40 assume(true) statements. [2022-12-14 12:21:38,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:21:38 BoogieIcfgContainer [2022-12-14 12:21:38,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:21:38,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:21:38,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:21:38,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:21:38,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:21:36" (1/3) ... [2022-12-14 12:21:38,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214d0320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:21:38, skipping insertion in model container [2022-12-14 12:21:38,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:21:36" (2/3) ... [2022-12-14 12:21:38,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214d0320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:21:38, skipping insertion in model container [2022-12-14 12:21:38,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:21:38" (3/3) ... [2022-12-14 12:21:38,282 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test1-2.i [2022-12-14 12:21:38,296 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:21:38,296 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 12:21:38,332 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:21:38,337 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;@5e8be8bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:21:38,337 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-14 12:21:38,341 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 81 states have (on average 1.8024691358024691) internal successors, (146), 97 states have internal predecessors, (146), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 12:21:38,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 12:21:38,347 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:21:38,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 12:21:38,348 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:21:38,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:21:38,353 INFO L85 PathProgramCache]: Analyzing trace with hash 656327, now seen corresponding path program 1 times [2022-12-14 12:21:38,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:21:38,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962073530] [2022-12-14 12:21:38,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:21:38,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:21:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:21:38,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:21:38,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:21:38,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962073530] [2022-12-14 12:21:38,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962073530] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:21:38,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:21:38,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:21:38,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463570438] [2022-12-14 12:21:38,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:21:38,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 12:21:38,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:21:38,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 12:21:38,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 12:21:38,510 INFO L87 Difference]: Start difference. First operand has 103 states, 81 states have (on average 1.8024691358024691) internal successors, (146), 97 states have internal predecessors, (146), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:21:38,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:21:38,941 INFO L93 Difference]: Finished difference Result 204 states and 343 transitions. [2022-12-14 12:21:38,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 12:21:38,946 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 12:21:38,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:21:38,952 INFO L225 Difference]: With dead ends: 204 [2022-12-14 12:21:38,952 INFO L226 Difference]: Without dead ends: 87 [2022-12-14 12:21:38,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 12:21:38,957 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 12:21:38,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 12:21:38,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-12-14 12:21:38,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-12-14 12:21:38,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 67 states have (on average 1.328358208955224) internal successors, (89), 81 states have internal predecessors, (89), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 12:21:38,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 115 transitions. [2022-12-14 12:21:38,986 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 115 transitions. Word has length 3 [2022-12-14 12:21:38,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:21:38,987 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 115 transitions. [2022-12-14 12:21:38,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:21:38,987 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 115 transitions. [2022-12-14 12:21:38,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 12:21:38,987 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:21:38,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 12:21:38,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:21:38,988 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:21:38,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:21:38,988 INFO L85 PathProgramCache]: Analyzing trace with hash 20346196, now seen corresponding path program 1 times [2022-12-14 12:21:38,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:21:38,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934086412] [2022-12-14 12:21:38,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:21:38,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:21:39,003 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 12:21:39,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1201676010] [2022-12-14 12:21:39,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:21:39,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:21:39,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:21:39,004 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:21:39,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 12:21:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:21:39,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:21:39,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:21:39,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:21:39,133 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:21:39,133 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:21:39,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934086412] [2022-12-14 12:21:39,134 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 12:21:39,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201676010] [2022-12-14 12:21:39,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201676010] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:21:39,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:21:39,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:21:39,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583709996] [2022-12-14 12:21:39,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:21:39,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:21:39,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:21:39,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:21:39,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:21:39,137 INFO L87 Difference]: Start difference. First operand 87 states and 115 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:21:39,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:21:39,588 INFO L93 Difference]: Finished difference Result 170 states and 226 transitions. [2022-12-14 12:21:39,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:21:39,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 12:21:39,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:21:39,593 INFO L225 Difference]: With dead ends: 170 [2022-12-14 12:21:39,593 INFO L226 Difference]: Without dead ends: 141 [2022-12-14 12:21:39,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:21:39,594 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 53 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 12:21:39,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 203 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 12:21:39,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-12-14 12:21:39,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 90. [2022-12-14 12:21:39,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 70 states have (on average 1.3142857142857143) internal successors, (92), 84 states have internal predecessors, (92), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 12:21:39,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 118 transitions. [2022-12-14 12:21:39,603 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 118 transitions. Word has length 4 [2022-12-14 12:21:39,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:21:39,603 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 118 transitions. [2022-12-14 12:21:39,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:21:39,603 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 118 transitions. [2022-12-14 12:21:39,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 12:21:39,604 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:21:39,604 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] [2022-12-14 12:21:39,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 12:21:39,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:21:39,806 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:21:39,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:21:39,808 INFO L85 PathProgramCache]: Analyzing trace with hash 2085923058, now seen corresponding path program 1 times [2022-12-14 12:21:39,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:21:39,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391841064] [2022-12-14 12:21:39,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:21:39,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:21:39,906 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 12:21:39,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [354311897] [2022-12-14 12:21:39,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:21:39,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:21:39,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:21:39,908 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:21:39,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 12:21:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:21:40,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 1548 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:21:40,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:21:40,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:21:40,385 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:21:40,386 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:21:40,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391841064] [2022-12-14 12:21:40,386 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 12:21:40,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354311897] [2022-12-14 12:21:40,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354311897] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:21:40,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:21:40,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:21:40,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308663514] [2022-12-14 12:21:40,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:21:40,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:21:40,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:21:40,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:21:40,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:21:40,388 INFO L87 Difference]: Start difference. First operand 90 states and 118 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:21:41,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:21:41,175 INFO L93 Difference]: Finished difference Result 90 states and 118 transitions. [2022-12-14 12:21:41,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:21:41,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-12-14 12:21:41,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:21:41,180 INFO L225 Difference]: With dead ends: 90 [2022-12-14 12:21:41,180 INFO L226 Difference]: Without dead ends: 89 [2022-12-14 12:21:41,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:21:41,181 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 60 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 12:21:41,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 207 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 12:21:41,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-12-14 12:21:41,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2022-12-14 12:21:41,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 70 states have (on average 1.3) internal successors, (91), 83 states have internal predecessors, (91), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 12:21:41,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 117 transitions. [2022-12-14 12:21:41,187 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 117 transitions. Word has length 27 [2022-12-14 12:21:41,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:21:41,188 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 117 transitions. [2022-12-14 12:21:41,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:21:41,188 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 117 transitions. [2022-12-14 12:21:41,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 12:21:41,188 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:21:41,188 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] [2022-12-14 12:21:41,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 12:21:41,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:21:41,390 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:21:41,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:21:41,391 INFO L85 PathProgramCache]: Analyzing trace with hash 239105766, now seen corresponding path program 1 times [2022-12-14 12:21:41,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:21:41,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312950561] [2022-12-14 12:21:41,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:21:41,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:21:41,522 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 12:21:41,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1669303537] [2022-12-14 12:21:41,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:21:41,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:21:41,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:21:41,524 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:21:41,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 12:21:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:21:42,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 1549 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:21:42,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:21:42,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:21:42,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:21:42,098 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:21:42,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312950561] [2022-12-14 12:21:42,098 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 12:21:42,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669303537] [2022-12-14 12:21:42,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669303537] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:21:42,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:21:42,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:21:42,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108102910] [2022-12-14 12:21:42,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:21:42,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:21:42,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:21:42,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:21:42,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:21:42,100 INFO L87 Difference]: Start difference. First operand 89 states and 117 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:21:45,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 12:21:45,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:21:45,547 INFO L93 Difference]: Finished difference Result 139 states and 175 transitions. [2022-12-14 12:21:45,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:21:45,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-12-14 12:21:45,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:21:45,557 INFO L225 Difference]: With dead ends: 139 [2022-12-14 12:21:45,557 INFO L226 Difference]: Without dead ends: 138 [2022-12-14 12:21:45,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:21:45,558 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 29 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 12:21:45,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 299 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 12:21:45,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-12-14 12:21:45,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2022-12-14 12:21:45,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 116 states have (on average 1.2241379310344827) internal successors, (142), 129 states have internal predecessors, (142), 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) [2022-12-14 12:21:45,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 174 transitions. [2022-12-14 12:21:45,565 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 174 transitions. Word has length 28 [2022-12-14 12:21:45,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:21:45,566 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 174 transitions. [2022-12-14 12:21:45,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:21:45,566 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 174 transitions. [2022-12-14 12:21:45,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 12:21:45,566 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:21:45,566 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] [2022-12-14 12:21:45,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 12:21:45,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:21:45,768 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:21:45,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:21:45,769 INFO L85 PathProgramCache]: Analyzing trace with hash 2144752483, now seen corresponding path program 1 times [2022-12-14 12:21:45,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:21:45,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58048464] [2022-12-14 12:21:45,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:21:45,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:21:45,878 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 12:21:45,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1855318458] [2022-12-14 12:21:45,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:21:45,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:21:45,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:21:45,880 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:21:45,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 12:21:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:21:46,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 1579 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 12:21:46,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:21:46,405 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:21:46,406 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:21:46,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:21:46,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58048464] [2022-12-14 12:21:46,406 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 12:21:46,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855318458] [2022-12-14 12:21:46,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855318458] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:21:46,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:21:46,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:21:46,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858477260] [2022-12-14 12:21:46,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:21:46,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:21:46,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:21:46,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:21:46,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:21:46,408 INFO L87 Difference]: Start difference. First operand 138 states and 174 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:21:47,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:21:47,062 INFO L93 Difference]: Finished difference Result 248 states and 316 transitions. [2022-12-14 12:21:47,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:21:47,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-12-14 12:21:47,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:21:47,067 INFO L225 Difference]: With dead ends: 248 [2022-12-14 12:21:47,067 INFO L226 Difference]: Without dead ends: 136 [2022-12-14 12:21:47,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:21:47,068 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 11 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 12:21:47,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 191 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 12:21:47,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-12-14 12:21:47,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2022-12-14 12:21:47,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 114 states have (on average 1.219298245614035) internal successors, (139), 127 states have internal predecessors, (139), 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) [2022-12-14 12:21:47,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 171 transitions. [2022-12-14 12:21:47,083 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 171 transitions. Word has length 31 [2022-12-14 12:21:47,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:21:47,084 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 171 transitions. [2022-12-14 12:21:47,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:21:47,084 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 171 transitions. [2022-12-14 12:21:47,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-14 12:21:47,084 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:21:47,084 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:21:47,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 12:21:47,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:21:47,286 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:21:47,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:21:47,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1997718878, now seen corresponding path program 1 times [2022-12-14 12:21:47,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:21:47,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005370889] [2022-12-14 12:21:47,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:21:47,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:21:47,365 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 12:21:47,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [128703933] [2022-12-14 12:21:47,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:21:47,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:21:47,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:21:47,367 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:21:47,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 12:21:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:21:59,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 12:21:59,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:21:59,499 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:21:59,499 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:21:59,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:21:59,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005370889] [2022-12-14 12:21:59,500 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 12:21:59,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128703933] [2022-12-14 12:21:59,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128703933] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:21:59,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:21:59,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 12:21:59,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342518675] [2022-12-14 12:21:59,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:21:59,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:21:59,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:21:59,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:21:59,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:21:59,502 INFO L87 Difference]: Start difference. First operand 136 states and 171 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 12:22:00,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 12:22:01,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:22:01,192 INFO L93 Difference]: Finished difference Result 254 states and 328 transitions. [2022-12-14 12:22:01,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:22:01,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-12-14 12:22:01,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:22:01,197 INFO L225 Difference]: With dead ends: 254 [2022-12-14 12:22:01,197 INFO L226 Difference]: Without dead ends: 138 [2022-12-14 12:22:01,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:22:01,199 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 1 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 12:22:01,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 299 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 12:22:01,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-12-14 12:22:01,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2022-12-14 12:22:01,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 115 states have (on average 1.2260869565217392) internal successors, (141), 129 states have internal predecessors, (141), 16 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2022-12-14 12:22:01,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 175 transitions. [2022-12-14 12:22:01,206 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 175 transitions. Word has length 44 [2022-12-14 12:22:01,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:22:01,206 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 175 transitions. [2022-12-14 12:22:01,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 12:22:01,207 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 175 transitions. [2022-12-14 12:22:01,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-14 12:22:01,208 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:22:01,208 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:22:01,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 12:22:01,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 12:22:01,411 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:22:01,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:22:01,412 INFO L85 PathProgramCache]: Analyzing trace with hash 587318850, now seen corresponding path program 1 times [2022-12-14 12:22:01,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:22:01,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176698836] [2022-12-14 12:22:01,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:22:01,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:22:01,479 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 12:22:01,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1722616401] [2022-12-14 12:22:01,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:22:01,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:22:01,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:22:01,481 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:22:01,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90242726-3ba5-42a0-9c79-a4358063de1e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 12:22:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:22:25,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 12:22:25,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:22:25,214 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 12:22:25,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:22:25,290 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 12:22:25,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:22:25,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176698836] [2022-12-14 12:22:25,291 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 12:22:25,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722616401] [2022-12-14 12:22:25,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722616401] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:22:25,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1903934341] [2022-12-14 12:22:25,308 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2022-12-14 12:22:25,308 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:22:25,311 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:22:25,315 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:22:25,316 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:22:25,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 12:22:25,425 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 12:22:25,425 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 [2022-12-14 12:22:25,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 12:22:25,447 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 12:22:25,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 26 treesize of output 32 [2022-12-14 12:22:25,481 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 12:22:25,481 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 [2022-12-14 12:22:25,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 12:22:25,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 12:22:25,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 12:22:25,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,852 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 [2022-12-14 12:22:25,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:25,893 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 [2022-12-14 12:22:25,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 12:22:25,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 12:22:25,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 12:22:26,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 12:22:26,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,069 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 9897003 treesize of output 5376293 [2022-12-14 12:22:26,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,111 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 [2022-12-14 12:22:26,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,170 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 [2022-12-14 12:22:26,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 12:22:26,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 12:22:26,284 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 12:22:26,284 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 [2022-12-14 12:22:26,300 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 [2022-12-14 12:22:26,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 12:22:26,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 12:22:26,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 12:22:26,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-12-14 12:22:26,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-12-14 12:22:26,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-12-14 12:22:26,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 12:22:26,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 12:22:26,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 12:22:26,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,571 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 [2022-12-14 12:22:26,590 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 46 treesize of output 16 [2022-12-14 12:22:26,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-12-14 12:22:26,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:22:26,743 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 [2022-12-14 12:22:26,765 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 46 treesize of output 16 [2022-12-14 12:22:26,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-12-14 12:22:27,441 INFO L217 Elim1Store]: Index analysis took 378 ms [2022-12-14 12:22:32,077 INFO L321 Elim1Store]: treesize reduction 128, result has 22.4 percent of original size [2022-12-14 12:22:32,078 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 10752687 treesize of output 10752705 [2022-12-14 12:22:32,523 INFO L217 Elim1Store]: Index analysis took 366 ms [2022-12-14 12:22:32,540 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-12-14 12:22:32,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 10752682 treesize of output 10752685 [2022-12-14 12:22:40,246 WARN L233 SmtUtils]: Spent 7.60s 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) [2022-12-14 12:22:40,246 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-12-14 12:22:40,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1476 [2022-12-14 12:22:40,554 INFO L217 Elim1Store]: Index analysis took 172 ms [2022-12-14 12:22:59,095 WARN L233 SmtUtils]: Spent 18.54s 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) [2022-12-14 12:22:59,095 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-12-14 12:22:59,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1819 [2022-12-14 12:23:00,766 INFO L217 Elim1Store]: Index analysis took 1175 ms [2022-12-14 12:23:23,904 WARN L233 SmtUtils]: Spent 22.64s on a formula simplification. DAG size of input: 261 DAG size of output: 159 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 12:23:23,905 INFO L321 Elim1Store]: treesize reduction 22290, result has 25.6 percent of original size [2022-12-14 12:23:23,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 5638 treesize of output 15985 [2022-12-14 12:23:24,889 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:23:24,890 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 69 [2022-12-14 12:23:24,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:23:24,977 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:23:24,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 55 [2022-12-14 12:23:25,028 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:23:25,053 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:23:25,105 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:23:25,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 212 [2022-12-14 12:23:25,182 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 12:23:25,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:23:25,309 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:23:25,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-12-14 12:23:26,092 INFO L217 Elim1Store]: Index analysis took 494 ms [2022-12-14 12:23:27,295 INFO L321 Elim1Store]: treesize reduction 36, result has 33.3 percent of original size [2022-12-14 12:23:27,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 113 [2022-12-14 12:23:27,414 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 12:23:27,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15 [2022-12-14 12:23:27,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:23:27,732 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 12:23:27,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 30 [2022-12-14 12:23:28,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:23:28,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 12:23:29,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:23:29,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 12:24:01,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:24:01,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-12-14 12:24:28,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:24:28,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-12-14 12:25:09,618 WARN L233 SmtUtils]: Spent 6.17s on a formula simplification that was a NOOP. DAG size: 27013 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 12:26:58,110 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 12:26:58,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 49 [2022-12-14 12:26:58,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:26:58,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:26:58,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 54 [2022-12-14 12:27:44,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:27:44,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:27:44,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 194 [2022-12-14 12:27:44,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:27:44,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 541 treesize of output 187 [2022-12-14 12:27:44,927 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 12:27:47,919 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-12-14 12:27:47,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 649 treesize of output 574 [2022-12-14 12:27:47,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2022-12-14 12:27:49,534 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-12-14 12:27:49,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 1129 treesize of output 1042 [2022-12-14 12:27:49,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-12-14 12:28:26,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:28:26,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:28:26,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 26 [2022-12-14 12:28:26,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2022-12-14 12:33:45,574 INFO L217 Elim1Store]: Index analysis took 281573 ms