./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.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_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/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_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/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_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/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 72c3cbe0b435a963730c7c79c0d825f3c978c53ad7cc61822ef9417e2e6ee67f --- 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 06:01:01,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:01:01,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:01:01,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:01:01,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:01:01,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:01:01,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:01:01,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:01:01,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:01:01,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:01:01,398 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:01:01,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:01:01,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:01:01,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:01:01,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:01:01,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:01:01,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:01:01,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:01:01,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:01:01,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:01:01,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:01:01,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:01:01,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:01:01,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:01:01,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:01:01,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:01:01,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:01:01,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:01:01,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:01:01,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:01:01,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:01:01,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:01:01,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:01:01,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:01:01,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:01:01,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:01:01,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:01:01,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:01:01,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:01:01,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:01:01,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:01:01,415 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 06:01:01,428 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:01:01,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:01:01,429 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:01:01,429 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:01:01,429 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:01:01,429 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:01:01,429 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:01:01,429 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:01:01,429 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:01:01,460 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:01:01,460 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:01:01,460 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:01:01,460 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:01:01,460 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:01:01,460 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:01:01,461 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:01:01,461 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:01:01,461 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:01:01,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:01:01,461 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:01:01,462 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 06:01:01,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:01:01,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:01:01,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:01:01,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:01:01,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:01:01,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:01:01,462 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 06:01:01,463 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:01:01,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:01:01,463 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:01:01,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:01:01,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:01:01,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:01:01,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:01:01,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:01:01,464 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:01:01,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:01:01,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:01:01,464 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:01:01,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:01:01,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:01:01,464 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:01:01,464 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_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72c3cbe0b435a963730c7c79c0d825f3c978c53ad7cc61822ef9417e2e6ee67f [2022-12-14 06:01:01,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:01:01,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:01:01,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:01:01,653 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:01:01,653 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:01:01,654 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i [2022-12-14 06:01:04,233 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:01:04,473 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:01:04,473 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i [2022-12-14 06:01:04,485 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/data/d68dcf416/2230ddb01bc940e4aec0e695881761db/FLAG0136b736a [2022-12-14 06:01:04,808 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/data/d68dcf416/2230ddb01bc940e4aec0e695881761db [2022-12-14 06:01:04,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:01:04,811 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:01:04,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:01:04,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:01:04,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:01:04,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:01:04" (1/1) ... [2022-12-14 06:01:04,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d557d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:01:04, skipping insertion in model container [2022-12-14 06:01:04,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:01:04" (1/1) ... [2022-12-14 06:01:04,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:01:04,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:01:05,062 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i[33021,33034] [2022-12-14 06:01:05,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:01:05,118 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:01:05,139 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_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i[33021,33034] [2022-12-14 06:01:05,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:01:05,189 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:01:05,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:01:05 WrapperNode [2022-12-14 06:01:05,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:01:05,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:01:05,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:01:05,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:01:05,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:01:05" (1/1) ... [2022-12-14 06:01:05,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:01:05" (1/1) ... [2022-12-14 06:01:05,248 INFO L138 Inliner]: procedures = 177, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 623 [2022-12-14 06:01:05,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:01:05,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:01:05,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:01:05,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:01:05,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:01:05" (1/1) ... [2022-12-14 06:01:05,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:01:05" (1/1) ... [2022-12-14 06:01:05,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:01:05" (1/1) ... [2022-12-14 06:01:05,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:01:05" (1/1) ... [2022-12-14 06:01:05,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:01:05" (1/1) ... [2022-12-14 06:01:05,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:01:05" (1/1) ... [2022-12-14 06:01:05,310 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:01:05" (1/1) ... [2022-12-14 06:01:05,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:01:05" (1/1) ... [2022-12-14 06:01:05,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:01:05,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:01:05,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:01:05,319 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:01:05,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:01:05" (1/1) ... [2022-12-14 06:01:05,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:01:05,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:01:05,343 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:01:05,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:01:05,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 06:01:05,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 06:01:05,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 06:01:05,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 06:01:05,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 06:01:05,374 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 06:01:05,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 06:01:05,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:01:05,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 06:01:05,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 06:01:05,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 06:01:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 06:01:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:01:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:01:05,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:01:05,493 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:01:05,495 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:01:06,198 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:01:06,383 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:01:06,383 INFO L300 CfgBuilder]: Removed 31 assume(true) statements. [2022-12-14 06:01:06,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:01:06 BoogieIcfgContainer [2022-12-14 06:01:06,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:01:06,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:01:06,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:01:06,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:01:06,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:01:04" (1/3) ... [2022-12-14 06:01:06,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@786ae874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:01:06, skipping insertion in model container [2022-12-14 06:01:06,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:01:05" (2/3) ... [2022-12-14 06:01:06,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@786ae874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:01:06, skipping insertion in model container [2022-12-14 06:01:06,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:01:06" (3/3) ... [2022-12-14 06:01:06,393 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test1-1.i [2022-12-14 06:01:06,408 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:01:06,408 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 06:01:06,444 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:01:06,449 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;@5fe15c5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:01:06,449 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-14 06:01:06,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 67 states have (on average 1.8059701492537314) internal successors, (121), 83 states have internal predecessors, (121), 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 06:01:06,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 06:01:06,463 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:01:06,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 06:01:06,464 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 06:01:06,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:01:06,468 INFO L85 PathProgramCache]: Analyzing trace with hash 531335, now seen corresponding path program 1 times [2022-12-14 06:01:06,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:01:06,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954923143] [2022-12-14 06:01:06,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:01:06,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:01:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:01:06,581 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 06:01:06,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:01:06,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954923143] [2022-12-14 06:01:06,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954923143] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:01:06,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:01:06,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 06:01:06,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338310916] [2022-12-14 06:01:06,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:01:06,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 06:01:06,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:01:06,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 06:01:06,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:01:06,610 INFO L87 Difference]: Start difference. First operand has 89 states, 67 states have (on average 1.8059701492537314) internal successors, (121), 83 states have internal predecessors, (121), 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 06:01:06,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:01:06,912 INFO L93 Difference]: Finished difference Result 176 states and 293 transitions. [2022-12-14 06:01:06,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 06:01:06,917 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 06:01:06,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:01:06,923 INFO L225 Difference]: With dead ends: 176 [2022-12-14 06:01:06,923 INFO L226 Difference]: Without dead ends: 87 [2022-12-14 06:01:06,925 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 06:01:06,927 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:01:06,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 06:01:06,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-12-14 06:01:06,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-12-14 06:01:06,954 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 06:01:06,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 115 transitions. [2022-12-14 06:01:06,957 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 115 transitions. Word has length 3 [2022-12-14 06:01:06,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:01:06,957 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 115 transitions. [2022-12-14 06:01:06,957 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 06:01:06,957 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 115 transitions. [2022-12-14 06:01:06,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 06:01:06,957 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:01:06,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 06:01:06,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:01:06,958 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 06:01:06,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:01:06,958 INFO L85 PathProgramCache]: Analyzing trace with hash 16527266, now seen corresponding path program 1 times [2022-12-14 06:01:06,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:01:06,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028421088] [2022-12-14 06:01:06,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:01:06,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:01:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:01:06,995 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 06:01:06,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:01:06,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028421088] [2022-12-14 06:01:06,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028421088] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:01:06,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:01:06,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:01:06,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892582099] [2022-12-14 06:01:06,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:01:06,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:01:06,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:01:06,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:01:06,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:01:06,998 INFO L87 Difference]: Start difference. First operand 87 states and 115 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) 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 06:01:08,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:01:08,478 INFO L93 Difference]: Finished difference Result 170 states and 226 transitions. [2022-12-14 06:01:08,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:01:08,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) 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 06:01:08,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:01:08,486 INFO L225 Difference]: With dead ends: 170 [2022-12-14 06:01:08,486 INFO L226 Difference]: Without dead ends: 141 [2022-12-14 06:01:08,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:01:08,487 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 55 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:01:08,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 212 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 06:01:08,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-12-14 06:01:08,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 90. [2022-12-14 06:01:08,500 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 06:01:08,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 118 transitions. [2022-12-14 06:01:08,501 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 118 transitions. Word has length 4 [2022-12-14 06:01:08,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:01:08,501 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 118 transitions. [2022-12-14 06:01:08,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) 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 06:01:08,502 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 118 transitions. [2022-12-14 06:01:08,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 06:01:08,503 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:01:08,503 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 06:01:08,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:01:08,503 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 06:01:08,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:01:08,504 INFO L85 PathProgramCache]: Analyzing trace with hash 372678044, now seen corresponding path program 1 times [2022-12-14 06:01:08,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:01:08,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856934904] [2022-12-14 06:01:08,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:01:08,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:01:08,600 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 06:01:08,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [479795696] [2022-12-14 06:01:08,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:01:08,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:01:08,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:01:08,602 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:01:08,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:01:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:01:09,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 1548 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:01:09,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:01:09,194 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 06:01:09,194 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:01:09,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:01:09,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856934904] [2022-12-14 06:01:09,194 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 06:01:09,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479795696] [2022-12-14 06:01:09,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479795696] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:01:09,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:01:09,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:01:09,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061243976] [2022-12-14 06:01:09,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:01:09,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:01:09,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:01:09,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:01:09,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:01:09,197 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 06:01:10,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:01:10,050 INFO L93 Difference]: Finished difference Result 90 states and 118 transitions. [2022-12-14 06:01:10,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:01:10,054 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 06:01:10,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:01:10,054 INFO L225 Difference]: With dead ends: 90 [2022-12-14 06:01:10,054 INFO L226 Difference]: Without dead ends: 89 [2022-12-14 06:01:10,055 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 06:01:10,056 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 06:01:10,056 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 06:01:10,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-12-14 06:01:10,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2022-12-14 06:01:10,062 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 06:01:10,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 117 transitions. [2022-12-14 06:01:10,063 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 117 transitions. Word has length 27 [2022-12-14 06:01:10,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:01:10,063 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 117 transitions. [2022-12-14 06:01:10,064 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 06:01:10,064 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 117 transitions. [2022-12-14 06:01:10,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 06:01:10,064 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:01:10,064 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 06:01:10,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 06:01:10,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-12-14 06:01:10,267 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 06:01:10,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:01:10,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1331882116, now seen corresponding path program 1 times [2022-12-14 06:01:10,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:01:10,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820719868] [2022-12-14 06:01:10,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:01:10,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:01:10,389 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 06:01:10,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1292084591] [2022-12-14 06:01:10,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:01:10,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:01:10,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:01:10,391 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:01:10,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 06:01:10,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:01:10,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 1549 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:01:10,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:01:10,942 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 06:01:10,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:01:10,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:01:10,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820719868] [2022-12-14 06:01:10,943 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 06:01:10,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292084591] [2022-12-14 06:01:10,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292084591] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:01:10,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:01:10,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:01:10,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042595915] [2022-12-14 06:01:10,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:01:10,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:01:10,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:01:10,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:01:10,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:01:10,945 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 06:01:13,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:01:13,670 INFO L93 Difference]: Finished difference Result 139 states and 175 transitions. [2022-12-14 06:01:13,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:01:13,676 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 06:01:13,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:01:13,677 INFO L225 Difference]: With dead ends: 139 [2022-12-14 06:01:13,677 INFO L226 Difference]: Without dead ends: 138 [2022-12-14 06:01:13,677 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 06:01:13,678 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 29 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:01:13,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 317 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 06:01:13,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-12-14 06:01:13,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2022-12-14 06:01:13,685 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 06:01:13,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 174 transitions. [2022-12-14 06:01:13,686 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 174 transitions. Word has length 28 [2022-12-14 06:01:13,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:01:13,686 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 174 transitions. [2022-12-14 06:01:13,686 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 06:01:13,686 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 174 transitions. [2022-12-14 06:01:13,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 06:01:13,687 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:01:13,687 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:01:13,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 06:01:13,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:01:13,889 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 06:01:13,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:01:13,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1191648227, now seen corresponding path program 1 times [2022-12-14 06:01:13,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:01:13,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266167968] [2022-12-14 06:01:13,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:01:13,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:01:14,005 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 06:01:14,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [167459010] [2022-12-14 06:01:14,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:01:14,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:01:14,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:01:14,007 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:01:14,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 06:01:14,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:01:14,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 1572 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 06:01:14,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:01:14,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:01:14,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:01:14,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:01:14,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:01:14,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266167968] [2022-12-14 06:01:14,566 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 06:01:14,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167459010] [2022-12-14 06:01:14,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167459010] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:01:14,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1103100488] [2022-12-14 06:01:14,585 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2022-12-14 06:01:14,585 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:01:14,588 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:01:14,592 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:01:14,592 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:01:14,687 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 06:01:14,688 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 06:01:14,708 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 06:01:14,709 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 06:01:14,718 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 06:01:14,749 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 06:01:14,749 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 06:01:14,759 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 15 treesize of output 1 [2022-12-14 06:01:14,777 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 06:01:14,786 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 06:01:14,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:14,794 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 06:01:15,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,045 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 06:01:15,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,086 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 06:01:15,115 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 06:01:15,132 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 06:01:15,155 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 06:01:15,176 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 06:01:15,176 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 06:01:15,202 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 06:01:15,202 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 06:01:15,209 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 15 treesize of output 1 [2022-12-14 06:01:15,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 06:01:15,237 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 06:01:15,243 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 06:01:15,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,252 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 06:01:15,553 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 06:01:15,566 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 06:01:15,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,601 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 06:01:15,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:15,631 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 06:01:15,660 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:01:30,802 WARN L233 SmtUtils]: Spent 5.45s on a formula simplification. DAG size of input: 240 DAG size of output: 224 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:01:30,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1103100488] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:01:30,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 06:01:30,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 4] total 14 [2022-12-14 06:01:30,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611458561] [2022-12-14 06:01:30,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:01:30,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:01:30,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:01:30,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:01:30,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=130, Unknown=2, NotChecked=0, Total=210 [2022-12-14 06:01:30,807 INFO L87 Difference]: Start difference. First operand 138 states and 174 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 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 06:01:33,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 06:01:35,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 06:01:37,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:01:37,244 INFO L93 Difference]: Finished difference Result 264 states and 336 transitions. [2022-12-14 06:01:37,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 06:01:37,248 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 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 06:01:37,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:01:37,249 INFO L225 Difference]: With dead ends: 264 [2022-12-14 06:01:37,249 INFO L226 Difference]: Without dead ends: 133 [2022-12-14 06:01:37,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=89, Invalid=149, Unknown=2, NotChecked=0, Total=240 [2022-12-14 06:01:37,250 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 2 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-12-14 06:01:37,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 253 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 126 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-12-14 06:01:37,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-12-14 06:01:37,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2022-12-14 06:01:37,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 111 states have (on average 1.2162162162162162) internal successors, (135), 124 states have internal predecessors, (135), 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 06:01:37,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 167 transitions. [2022-12-14 06:01:37,261 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 167 transitions. Word has length 31 [2022-12-14 06:01:37,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:01:37,261 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 167 transitions. [2022-12-14 06:01:37,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 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 06:01:37,261 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 167 transitions. [2022-12-14 06:01:37,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-14 06:01:37,261 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:01:37,261 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:01:37,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 06:01:37,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:01:37,463 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 06:01:37,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:01:37,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1649700214, now seen corresponding path program 1 times [2022-12-14 06:01:37,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:01:37,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252263672] [2022-12-14 06:01:37,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:01:37,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:01:37,541 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 06:01:37,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1421962573] [2022-12-14 06:01:37,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:01:37,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:01:37,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:01:37,542 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:01:37,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 06:01:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:01:37,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 06:01:37,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:01:37,963 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 06:01:37,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:01:38,026 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 06:01:38,027 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:01:38,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252263672] [2022-12-14 06:01:38,027 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 06:01:38,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421962573] [2022-12-14 06:01:38,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421962573] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:01:38,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1638129265] [2022-12-14 06:01:38,030 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2022-12-14 06:01:38,030 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:01:38,030 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:01:38,031 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:01:38,031 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:01:38,078 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 06:01:38,079 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 06:01:38,110 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 06:01:38,110 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 06:01:38,119 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 15 treesize of output 1 [2022-12-14 06:01:38,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 06:01:38,133 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 15 treesize of output 1 [2022-12-14 06:01:38,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,151 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 06:01:38,161 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 06:01:38,168 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 06:01:38,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,418 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 06:01:38,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,444 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 06:01:38,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 06:01:38,483 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 06:01:38,505 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 06:01:38,515 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 06:01:38,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,561 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 06:01:38,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,596 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 06:01:38,638 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 06:01:38,681 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 06:01:38,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 66 [2022-12-14 06:01:38,730 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 06:01:38,730 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 06:01:38,749 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 06:01:38,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:38,784 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 06:01:39,130 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 06:01:39,135 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 06:01:39,163 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 06:01:39,164 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 06:01:39,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 06:01:39,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 06:01:39,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,201 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 06:01:39,212 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 06:01:39,219 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 06:01:39,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,513 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 06:01:39,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,547 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 06:01:39,579 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 06:01:39,591 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 06:01:39,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,647 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 06:01:39,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,684 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 06:01:39,705 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 06:01:39,717 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 06:01:39,758 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 06:01:39,813 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 06:01:39,813 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 06:01:39,825 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 06:01:39,844 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 06:01:39,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:01:39,877 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 06:01:39,944 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-12-14 06:01:40,010 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:01:53,031 WARN L233 SmtUtils]: Spent 5.20s on a formula simplification. DAG size of input: 240 DAG size of output: 224 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:02:02,775 WARN L233 SmtUtils]: Spent 5.62s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:02:15,155 WARN L233 SmtUtils]: Spent 6.11s on a formula simplification. DAG size of input: 273 DAG size of output: 250 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:02:28,879 WARN L233 SmtUtils]: Spent 7.48s on a formula simplification. DAG size of input: 273 DAG size of output: 250 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:02:29,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1638129265] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:29,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 06:02:29,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [5, 5] total 20 [2022-12-14 06:02:29,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327905254] [2022-12-14 06:02:29,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:29,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 06:02:29,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:02:29,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 06:02:29,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=260, Unknown=9, NotChecked=0, Total=380 [2022-12-14 06:02:29,587 INFO L87 Difference]: Start difference. First operand 133 states and 167 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 12 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 06:02:31,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 06:02:33,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 06:02:35,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 06:02:38,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 06:02:40,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 06:02:42,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 06:02:44,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 06:02:46,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 06:02:48,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 06:02:51,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:51,075 INFO L93 Difference]: Finished difference Result 251 states and 320 transitions. [2022-12-14 06:02:51,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 06:02:51,078 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 12 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-12-14 06:02:51,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:51,079 INFO L225 Difference]: With dead ends: 251 [2022-12-14 06:02:51,079 INFO L226 Difference]: Without dead ends: 135 [2022-12-14 06:02:51,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 109 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 49.6s TimeCoverageRelationStatistics Valid=111, Invalid=260, Unknown=9, NotChecked=0, Total=380 [2022-12-14 06:02:51,080 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:51,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 408 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 9 Unknown, 0 Unchecked, 21.5s Time] [2022-12-14 06:02:51,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-12-14 06:02:51,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2022-12-14 06:02:51,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 113 states have (on average 1.2123893805309736) internal successors, (137), 125 states have internal predecessors, (137), 16 states have call successors, (16), 3 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 06:02:51,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 169 transitions. [2022-12-14 06:02:51,104 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 169 transitions. Word has length 44 [2022-12-14 06:02:51,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:51,104 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 169 transitions. [2022-12-14 06:02:51,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 12 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 06:02:51,104 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 169 transitions. [2022-12-14 06:02:51,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 06:02:51,105 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:51,105 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:02:51,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 06:02:51,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:02:51,306 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 06:02:51,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:51,306 INFO L85 PathProgramCache]: Analyzing trace with hash -850590074, now seen corresponding path program 1 times [2022-12-14 06:02:51,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:02:51,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454741723] [2022-12-14 06:02:51,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:51,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:02:51,348 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 06:02:51,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1329621154] [2022-12-14 06:02:51,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:51,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:02:51,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:02:51,349 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:02:51,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 06:02:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:51,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 06:02:51,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:02:51,779 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 06:02:51,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:02:51,839 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 06:02:51,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:02:51,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454741723] [2022-12-14 06:02:51,839 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 06:02:51,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329621154] [2022-12-14 06:02:51,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329621154] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:02:51,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [864617903] [2022-12-14 06:02:51,841 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2022-12-14 06:02:51,841 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:02:51,841 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:02:51,841 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:02:51,841 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:02:51,875 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 06:02:51,875 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 06:02:51,907 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 06:02:51,907 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 06:02:51,914 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 15 treesize of output 1 [2022-12-14 06:02:51,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 06:02:51,926 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 15 treesize of output 1 [2022-12-14 06:02:51,944 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 06:02:51,949 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 06:02:51,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:51,957 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 06:02:52,149 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 06:02:52,160 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 06:02:52,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,188 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 06:02:52,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 06:02:52,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,275 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 06:02:52,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,311 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 06:02:52,326 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 06:02:52,334 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 06:02:52,358 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 06:02:52,373 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 06:02:52,421 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 06:02:52,421 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 06:02:52,432 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 06:02:52,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,469 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 06:02:52,563 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 06:02:52,566 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 06:02:52,570 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 06:02:52,587 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 06:02:52,592 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 06:02:52,598 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 06:02:52,612 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 06:02:52,616 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 06:02:52,620 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 06:02:52,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,673 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 06:02:52,695 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 06:02:52,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 06:02:52,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:52,833 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 06:02:52,847 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 06:02:52,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 06:02:53,415 INFO L217 Elim1Store]: Index analysis took 341 ms [2022-12-14 06:02:56,770 INFO L321 Elim1Store]: treesize reduction 128, result has 22.4 percent of original size [2022-12-14 06:02:56,771 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 06:02:57,343 INFO L217 Elim1Store]: Index analysis took 476 ms [2022-12-14 06:02:57,359 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-12-14 06:02:57,360 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 06:03:04,214 INFO L217 Elim1Store]: Index analysis took 393 ms [2022-12-14 06:03:37,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 06:03:37,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 06:03:37,253 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 127343 column 7: canceled at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:124) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:119) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:98) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 127343 column 7: canceled at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:54) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:736) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:389) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:648) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:198) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:265) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) ... 65 more [2022-12-14 06:03:37,261 INFO L158 Benchmark]: Toolchain (without parser) took 152449.89ms. Allocated memory was 123.7MB in the beginning and 5.8GB in the end (delta: 5.7GB). Free memory was 86.7MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 5.0GB. Max. memory is 16.1GB. [2022-12-14 06:03:37,262 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 123.7MB. Free memory is still 91.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:03:37,262 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.70ms. Allocated memory is still 123.7MB. Free memory was 86.4MB in the beginning and 59.4MB in the end (delta: 27.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-14 06:03:37,262 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.87ms. Allocated memory was 123.7MB in the beginning and 230.7MB in the end (delta: 107.0MB). Free memory was 59.4MB in the beginning and 198.7MB in the end (delta: -139.3MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2022-12-14 06:03:37,262 INFO L158 Benchmark]: Boogie Preprocessor took 69.21ms. Allocated memory is still 230.7MB. Free memory was 198.7MB in the beginning and 196.0MB in the end (delta: 2.7MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-12-14 06:03:37,262 INFO L158 Benchmark]: RCFGBuilder took 1066.75ms. Allocated memory is still 230.7MB. Free memory was 195.0MB in the beginning and 112.9MB in the end (delta: 82.1MB). Peak memory consumption was 82.1MB. Max. memory is 16.1GB. [2022-12-14 06:03:37,263 INFO L158 Benchmark]: TraceAbstraction took 150872.03ms. Allocated memory was 230.7MB in the beginning and 5.8GB in the end (delta: 5.6GB). Free memory was 112.9MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 4.9GB. Max. memory is 16.1GB. [2022-12-14 06:03:37,264 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 123.7MB. Free memory is still 91.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.70ms. Allocated memory is still 123.7MB. Free memory was 86.4MB in the beginning and 59.4MB in the end (delta: 27.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.87ms. Allocated memory was 123.7MB in the beginning and 230.7MB in the end (delta: 107.0MB). Free memory was 59.4MB in the beginning and 198.7MB in the end (delta: -139.3MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.21ms. Allocated memory is still 230.7MB. Free memory was 198.7MB in the beginning and 196.0MB in the end (delta: 2.7MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1066.75ms. Allocated memory is still 230.7MB. Free memory was 195.0MB in the beginning and 112.9MB in the end (delta: 82.1MB). Peak memory consumption was 82.1MB. Max. memory is 16.1GB. * TraceAbstraction took 150872.03ms. Allocated memory was 230.7MB in the beginning and 5.8GB in the end (delta: 5.6GB). Free memory was 112.9MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 4.9GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 127343 column 7: canceled de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 127343 column 7: canceled: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-14 06:03:37,470 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-12-14 06:03:37,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/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_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/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 72c3cbe0b435a963730c7c79c0d825f3c978c53ad7cc61822ef9417e2e6ee67f --- 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 06:03:39,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:03:39,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:03:39,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:03:39,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:03:39,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:03:39,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:03:39,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:03:39,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:03:39,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:03:39,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:03:39,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:03:39,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:03:39,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:03:39,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:03:39,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:03:39,269 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:03:39,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:03:39,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:03:39,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:03:39,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:03:39,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:03:39,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:03:39,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:03:39,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:03:39,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:03:39,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:03:39,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:03:39,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:03:39,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:03:39,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:03:39,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:03:39,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:03:39,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:03:39,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:03:39,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:03:39,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:03:39,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:03:39,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:03:39,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:03:39,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:03:39,292 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2022-12-14 06:03:39,315 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:03:39,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:03:39,316 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:03:39,316 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:03:39,317 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:03:39,317 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:03:39,317 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:03:39,318 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:03:39,318 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:03:39,318 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:03:39,318 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:03:39,318 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:03:39,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:03:39,319 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:03:39,319 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 06:03:39,320 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:03:39,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:03:39,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:03:39,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:03:39,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:03:39,320 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 06:03:39,321 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 06:03:39,321 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 06:03:39,321 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 06:03:39,321 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:03:39,321 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:03:39,321 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:03:39,322 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:03:39,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:03:39,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 06:03:39,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:03:39,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:03:39,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:03:39,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:03:39,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:03:39,323 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 06:03:39,323 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 06:03:39,323 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:03:39,323 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:03:39,323 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 06:03:39,323 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72c3cbe0b435a963730c7c79c0d825f3c978c53ad7cc61822ef9417e2e6ee67f [2022-12-14 06:03:39,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:03:39,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:03:39,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:03:39,579 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:03:39,579 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:03:39,580 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i [2022-12-14 06:03:42,188 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:03:42,434 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:03:42,435 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i [2022-12-14 06:03:42,447 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/data/f54bc6fd6/4983b2e2409a48f7891000dffd986570/FLAGb960d6d2e [2022-12-14 06:03:42,461 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/data/f54bc6fd6/4983b2e2409a48f7891000dffd986570 [2022-12-14 06:03:42,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:03:42,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:03:42,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:03:42,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:03:42,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:03:42,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:03:42" (1/1) ... [2022-12-14 06:03:42,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d4daef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:42, skipping insertion in model container [2022-12-14 06:03:42,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:03:42" (1/1) ... [2022-12-14 06:03:42,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:03:42,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:03:42,792 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_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i[33021,33034] [2022-12-14 06:03:42,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:03:42,861 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-14 06:03:42,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:03:42,894 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_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i[33021,33034] [2022-12-14 06:03:42,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:03:42,935 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:03:42,959 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_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i[33021,33034] [2022-12-14 06:03:42,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:03:43,021 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:03:43,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:43 WrapperNode [2022-12-14 06:03:43,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:03:43,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:03:43,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:03:43,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:03:43,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:43" (1/1) ... [2022-12-14 06:03:43,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:43" (1/1) ... [2022-12-14 06:03:43,087 INFO L138 Inliner]: procedures = 180, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 624 [2022-12-14 06:03:43,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:03:43,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:03:43,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:03:43,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:03:43,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:43" (1/1) ... [2022-12-14 06:03:43,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:43" (1/1) ... [2022-12-14 06:03:43,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:43" (1/1) ... [2022-12-14 06:03:43,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:43" (1/1) ... [2022-12-14 06:03:43,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:43" (1/1) ... [2022-12-14 06:03:43,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:43" (1/1) ... [2022-12-14 06:03:43,128 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:43" (1/1) ... [2022-12-14 06:03:43,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:43" (1/1) ... [2022-12-14 06:03:43,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:03:43,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:03:43,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:03:43,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:03:43,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:43" (1/1) ... [2022-12-14 06:03:43,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:03:43,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:03:43,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:03:43,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:03:43,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-12-14 06:03:43,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 06:03:43,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 06:03:43,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 06:03:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 06:03:43,198 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 06:03:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 06:03:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:03:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 06:03:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 06:03:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 06:03:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 06:03:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 06:03:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 06:03:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:03:43,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:03:43,333 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:03:43,334 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:03:48,802 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:03:48,808 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:03:48,808 INFO L300 CfgBuilder]: Removed 31 assume(true) statements. [2022-12-14 06:03:48,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:03:48 BoogieIcfgContainer [2022-12-14 06:03:48,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:03:48,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:03:48,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:03:48,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:03:48,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:03:42" (1/3) ... [2022-12-14 06:03:48,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3925c9e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:03:48, skipping insertion in model container [2022-12-14 06:03:48,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:43" (2/3) ... [2022-12-14 06:03:48,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3925c9e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:03:48, skipping insertion in model container [2022-12-14 06:03:48,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:03:48" (3/3) ... [2022-12-14 06:03:48,817 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test1-1.i [2022-12-14 06:03:48,830 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:03:48,831 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 06:03:48,873 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:03:48,877 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;@376549d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:03:48,877 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-14 06:03:48,881 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 114 states have (on average 1.6842105263157894) internal successors, (192), 130 states have internal predecessors, (192), 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 06:03:48,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 06:03:48,885 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:48,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 06:03:48,886 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 06:03:48,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:48,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1126628338, now seen corresponding path program 1 times [2022-12-14 06:03:48,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:03:48,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [228137897] [2022-12-14 06:03:48,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:48,899 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:48,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:03:48,901 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:03:48,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 06:03:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:49,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 06:03:49,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:03:49,031 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 06:03:49,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:03:49,032 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:03:49,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [228137897] [2022-12-14 06:03:49,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [228137897] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:03:49,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:03:49,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 06:03:49,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948091683] [2022-12-14 06:03:49,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:03:49,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 06:03:49,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:03:49,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 06:03:49,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:03:49,062 INFO L87 Difference]: Start difference. First operand has 136 states, 114 states have (on average 1.6842105263157894) internal successors, (192), 130 states have internal predecessors, (192), 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 6.0) internal successors, (6), 2 states have internal predecessors, (6), 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 06:03:49,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:03:49,090 INFO L93 Difference]: Finished difference Result 268 states and 444 transitions. [2022-12-14 06:03:49,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 06:03:49,092 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-12-14 06:03:49,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:03:49,098 INFO L225 Difference]: With dead ends: 268 [2022-12-14 06:03:49,098 INFO L226 Difference]: Without dead ends: 130 [2022-12-14 06:03:49,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 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 06:03:49,103 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:03:49,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:03:49,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-12-14 06:03:49,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2022-12-14 06:03:49,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 111 states have (on average 1.3513513513513513) internal successors, (150), 124 states have internal predecessors, (150), 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 06:03:49,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 176 transitions. [2022-12-14 06:03:49,134 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 176 transitions. Word has length 6 [2022-12-14 06:03:49,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:03:49,135 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 176 transitions. [2022-12-14 06:03:49,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 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 06:03:49,135 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 176 transitions. [2022-12-14 06:03:49,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 06:03:49,135 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:49,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 06:03:49,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 06:03:49,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:49,337 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 06:03:49,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:49,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1126331241, now seen corresponding path program 1 times [2022-12-14 06:03:49,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:03:49,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1622423389] [2022-12-14 06:03:49,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:49,344 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:49,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:03:49,348 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:03:49,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 06:03:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:49,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 06:03:49,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:03:49,577 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 06:03:49,577 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:03:49,578 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:03:49,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1622423389] [2022-12-14 06:03:49,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1622423389] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:03:49,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:03:49,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:03:49,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422490075] [2022-12-14 06:03:49,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:03:49,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:03:49,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:03:49,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:03:49,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:03:49,581 INFO L87 Difference]: Start difference. First operand 130 states and 176 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 06:03:50,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:03:50,922 INFO L93 Difference]: Finished difference Result 254 states and 346 transitions. [2022-12-14 06:03:50,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:03:50,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-12-14 06:03:50,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:03:50,925 INFO L225 Difference]: With dead ends: 254 [2022-12-14 06:03:50,925 INFO L226 Difference]: Without dead ends: 220 [2022-12-14 06:03:50,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 06:03:50,926 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 106 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:03:50,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 340 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 06:03:50,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-12-14 06:03:50,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 135. [2022-12-14 06:03:50,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 116 states have (on average 1.3362068965517242) internal successors, (155), 129 states have internal predecessors, (155), 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 06:03:50,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 181 transitions. [2022-12-14 06:03:50,938 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 181 transitions. Word has length 6 [2022-12-14 06:03:50,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:03:50,938 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 181 transitions. [2022-12-14 06:03:50,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 06:03:50,939 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 181 transitions. [2022-12-14 06:03:50,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-14 06:03:50,940 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:50,940 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:03:50,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 06:03:51,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:51,142 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 06:03:51,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:51,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1695874247, now seen corresponding path program 1 times [2022-12-14 06:03:51,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:03:51,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [150596030] [2022-12-14 06:03:51,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:51,150 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:51,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:03:51,153 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:03:51,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-14 06:03:51,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:51,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:03:51,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:03:52,029 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 06:03:52,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:03:52,030 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:03:52,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [150596030] [2022-12-14 06:03:52,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [150596030] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:03:52,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:03:52,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:03:52,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932858705] [2022-12-14 06:03:52,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:03:52,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:03:52,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:03:52,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:03:52,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:03:52,032 INFO L87 Difference]: Start difference. First operand 135 states and 181 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 06:03:52,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:03:52,148 INFO L93 Difference]: Finished difference Result 270 states and 365 transitions. [2022-12-14 06:03:52,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:03:52,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 57 [2022-12-14 06:03:52,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:03:52,150 INFO L225 Difference]: With dead ends: 270 [2022-12-14 06:03:52,150 INFO L226 Difference]: Without dead ends: 142 [2022-12-14 06:03:52,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 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 06:03:52,152 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 135 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:03:52,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 327 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:03:52,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-12-14 06:03:52,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 138. [2022-12-14 06:03:52,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 119 states have (on average 1.2605042016806722) internal successors, (150), 132 states have internal predecessors, (150), 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 06:03:52,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 176 transitions. [2022-12-14 06:03:52,165 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 176 transitions. Word has length 57 [2022-12-14 06:03:52,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:03:52,166 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 176 transitions. [2022-12-14 06:03:52,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 06:03:52,166 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 176 transitions. [2022-12-14 06:03:52,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-14 06:03:52,168 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:52,168 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:03:52,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-14 06:03:52,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:52,369 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 06:03:52,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:52,369 INFO L85 PathProgramCache]: Analyzing trace with hash 988991685, now seen corresponding path program 1 times [2022-12-14 06:03:52,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:03:52,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [181521361] [2022-12-14 06:03:52,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:52,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:52,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:03:52,371 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:03:52,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-14 06:03:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:53,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:03:53,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:03:53,433 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 06:03:53,434 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:03:53,434 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:03:53,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [181521361] [2022-12-14 06:03:53,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [181521361] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:03:53,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:03:53,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:03:53,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633155994] [2022-12-14 06:03:53,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:03:53,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:03:53,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:03:53,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:03:53,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:03:53,436 INFO L87 Difference]: Start difference. First operand 138 states and 176 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 06:03:53,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:03:53,984 INFO L93 Difference]: Finished difference Result 308 states and 389 transitions. [2022-12-14 06:03:53,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:03:53,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2022-12-14 06:03:53,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:03:53,990 INFO L225 Difference]: With dead ends: 308 [2022-12-14 06:03:53,990 INFO L226 Difference]: Without dead ends: 177 [2022-12-14 06:03:53,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 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 06:03:53,991 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 11 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:03:53,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 312 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 06:03:53,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-12-14 06:03:53,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2022-12-14 06:03:53,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 158 states have (on average 1.2215189873417722) internal successors, (193), 171 states have internal predecessors, (193), 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 06:03:53,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 219 transitions. [2022-12-14 06:03:53,999 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 219 transitions. Word has length 57 [2022-12-14 06:03:54,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:03:54,000 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 219 transitions. [2022-12-14 06:03:54,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 06:03:54,000 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 219 transitions. [2022-12-14 06:03:54,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 06:03:54,001 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:54,001 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:03:54,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-12-14 06:03:54,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:54,203 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 06:03:54,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:54,205 INFO L85 PathProgramCache]: Analyzing trace with hash 548813316, now seen corresponding path program 1 times [2022-12-14 06:03:54,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:03:54,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500936975] [2022-12-14 06:03:54,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:54,208 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:54,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:03:54,210 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:03:54,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-14 06:03:54,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:54,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:03:54,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:03:54,752 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:03:54,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:03:54,753 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:03:54,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500936975] [2022-12-14 06:03:54,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1500936975] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:03:54,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:03:54,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:03:54,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846087654] [2022-12-14 06:03:54,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:03:54,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:03:54,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:03:54,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:03:54,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:03:54,756 INFO L87 Difference]: Start difference. First operand 177 states and 219 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 06:03:54,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:03:54,807 INFO L93 Difference]: Finished difference Result 311 states and 394 transitions. [2022-12-14 06:03:54,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:03:54,808 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 72 [2022-12-14 06:03:54,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:03:54,809 INFO L225 Difference]: With dead ends: 311 [2022-12-14 06:03:54,810 INFO L226 Difference]: Without dead ends: 180 [2022-12-14 06:03:54,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 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 06:03:54,811 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 2 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:03:54,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 482 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:03:54,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-12-14 06:03:54,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2022-12-14 06:03:54,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 160 states have (on average 1.225) internal successors, (196), 174 states have internal predecessors, (196), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2022-12-14 06:03:54,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 223 transitions. [2022-12-14 06:03:54,820 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 223 transitions. Word has length 72 [2022-12-14 06:03:54,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:03:54,821 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 223 transitions. [2022-12-14 06:03:54,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 06:03:54,821 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 223 transitions. [2022-12-14 06:03:54,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 06:03:54,824 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:54,824 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:03:54,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-14 06:03:55,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:55,026 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 06:03:55,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:55,027 INFO L85 PathProgramCache]: Analyzing trace with hash 881968866, now seen corresponding path program 1 times [2022-12-14 06:03:55,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:03:55,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500655377] [2022-12-14 06:03:55,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:55,030 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:55,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:03:55,033 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:03:55,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-14 06:03:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:55,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 06:03:55,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:03:55,589 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 06:03:55,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:03:55,682 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:03:55,683 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:03:55,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500655377] [2022-12-14 06:03:55,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1500655377] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:03:55,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1261971688] [2022-12-14 06:03:55,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:55,683 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 06:03:55,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 06:03:55,684 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 06:03:55,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2022-12-14 06:03:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:56,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 06:03:56,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:03:56,542 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 06:03:56,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:03:56,581 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:03:56,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1261971688] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:03:56,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892442202] [2022-12-14 06:03:56,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:56,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:03:56,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:03:56,583 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:03:56,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 06:03:57,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:57,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:03:57,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:03:57,150 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 06:03:57,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:03:57,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892442202] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:03:57,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-12-14 06:03:57,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5, 5, 5] total 10 [2022-12-14 06:03:57,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431185450] [2022-12-14 06:03:57,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:03:57,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:03:57,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:03:57,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:03:57,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-12-14 06:03:57,152 INFO L87 Difference]: Start difference. First operand 180 states and 223 transitions. Second operand has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 06:03:58,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:03:58,543 INFO L93 Difference]: Finished difference Result 227 states and 284 transitions. [2022-12-14 06:03:58,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:03:58,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 74 [2022-12-14 06:03:58,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:03:58,546 INFO L225 Difference]: With dead ends: 227 [2022-12-14 06:03:58,546 INFO L226 Difference]: Without dead ends: 226 [2022-12-14 06:03:58,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-12-14 06:03:58,547 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 37 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:03:58,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 475 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 06:03:58,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-12-14 06:03:58,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2022-12-14 06:03:58,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 203 states have (on average 1.2266009852216748) internal successors, (249), 217 states have internal predecessors, (249), 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 06:03:58,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 283 transitions. [2022-12-14 06:03:58,564 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 283 transitions. Word has length 74 [2022-12-14 06:03:58,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:03:58,565 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 283 transitions. [2022-12-14 06:03:58,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 06:03:58,565 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 283 transitions. [2022-12-14 06:03:58,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 06:03:58,566 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:58,567 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 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 06:03:58,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 06:03:58,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-12-14 06:03:58,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2022-12-14 06:03:59,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 06:03:59,171 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 06:03:59,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:59,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1992697225, now seen corresponding path program 1 times [2022-12-14 06:03:59,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:03:59,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2139181225] [2022-12-14 06:03:59,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:59,175 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:59,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:03:59,176 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:03:59,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-14 06:03:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:59,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 06:03:59,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:03:59,777 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 06:03:59,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:03:59,857 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:03:59,857 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:03:59,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2139181225] [2022-12-14 06:03:59,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2139181225] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:03:59,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1611270339] [2022-12-14 06:03:59,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:59,858 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 06:03:59,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 06:03:59,859 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 06:03:59,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-12-14 06:04:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:04:00,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 06:04:00,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:04:00,809 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 06:04:00,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:04:00,851 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:04:00,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1611270339] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:04:00,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914896355] [2022-12-14 06:04:00,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:04:00,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:04:00,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:04:00,852 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:04:00,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-14 06:04:01,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:04:01,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 06:04:01,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:04:01,353 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:04:01,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:04:01,433 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:04:01,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914896355] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:04:01,433 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 06:04:01,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2022-12-14 06:04:01,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10490840] [2022-12-14 06:04:01,433 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 06:04:01,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 06:04:01,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:04:01,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 06:04:01,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-12-14 06:04:01,435 INFO L87 Difference]: Start difference. First operand 226 states and 283 transitions. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 06:04:01,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:04:01,789 INFO L93 Difference]: Finished difference Result 418 states and 544 transitions. [2022-12-14 06:04:01,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 06:04:01,790 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 78 [2022-12-14 06:04:01,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:04:01,792 INFO L225 Difference]: With dead ends: 418 [2022-12-14 06:04:01,792 INFO L226 Difference]: Without dead ends: 241 [2022-12-14 06:04:01,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=156, Invalid=306, Unknown=0, NotChecked=0, Total=462 [2022-12-14 06:04:01,794 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 20 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:04:01,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 952 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:04:01,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-12-14 06:04:01,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 237. [2022-12-14 06:04:01,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 213 states have (on average 1.2535211267605635) internal successors, (267), 227 states have internal predecessors, (267), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2022-12-14 06:04:01,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 301 transitions. [2022-12-14 06:04:01,809 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 301 transitions. Word has length 78 [2022-12-14 06:04:01,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:04:01,809 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 301 transitions. [2022-12-14 06:04:01,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 06:04:01,809 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 301 transitions. [2022-12-14 06:04:01,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 06:04:01,810 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:04:01,810 INFO L195 NwaCegarLoop]: trace histogram [8, 2, 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, 1, 1, 1, 1, 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 06:04:01,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2022-12-14 06:04:02,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-14 06:04:02,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-12-14 06:04:02,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:04:02,411 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 06:04:02,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:04:02,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1553229867, now seen corresponding path program 2 times [2022-12-14 06:04:02,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:04:02,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048705830] [2022-12-14 06:04:02,413 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 06:04:02,414 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:04:02,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:04:02,415 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:04:02,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-12-14 06:04:03,032 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 06:04:03,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:04:03,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 06:04:03,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:04:03,122 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 06:04:03,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:04:03,318 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 06:04:03,318 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:04:03,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048705830] [2022-12-14 06:04:03,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1048705830] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:04:03,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [93049046] [2022-12-14 06:04:03,318 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 06:04:03,318 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 06:04:03,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 06:04:03,319 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 06:04:03,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abb2ecd-7c34-43b6-bfc4-7dd3e1a67d4b/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process