./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a 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_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI --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 096e364e485b0e5279ae2fe39d9edab416c1da593e20bd1edd3d0a079c23fdc3 --- 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-5e519f3 [2022-11-03 04:08:23,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:08:23,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:08:23,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:08:23,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:08:23,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:08:23,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:08:23,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:08:23,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:08:23,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:08:23,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:08:23,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:08:23,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:08:23,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:08:23,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:08:23,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:08:23,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:08:23,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:08:23,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:08:23,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:08:23,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:08:23,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:08:23,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:08:23,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:08:23,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:08:23,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:08:23,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:08:23,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:08:23,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:08:23,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:08:23,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:08:23,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:08:23,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:08:23,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:08:23,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:08:23,398 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:08:23,399 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:08:23,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:08:23,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:08:23,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:08:23,402 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:08:23,403 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-03 04:08:23,451 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:08:23,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:08:23,451 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:08:23,452 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:08:23,452 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:08:23,453 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:08:23,453 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:08:23,453 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:08:23,453 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:08:23,453 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:08:23,453 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:08:23,454 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:08:23,454 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:08:23,454 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:08:23,454 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:08:23,455 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:08:23,455 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:08:23,455 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:08:23,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:08:23,456 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 04:08:23,456 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 04:08:23,456 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:08:23,457 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 04:08:23,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:08:23,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:08:23,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:08:23,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:08:23,458 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-03 04:08:23,458 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 04:08:23,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:08:23,463 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:08:23,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:08:23,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:08:23,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:08:23,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:08:23,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:08:23,465 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:08:23,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:08:23,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:08:23,465 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:08:23,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:08:23,466 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:08:23,466 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:08:23,466 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_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 096e364e485b0e5279ae2fe39d9edab416c1da593e20bd1edd3d0a079c23fdc3 [2022-11-03 04:08:23,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:08:23,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:08:23,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:08:23,802 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:08:23,803 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:08:23,804 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i [2022-11-03 04:08:23,890 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/data/dbfc4c6f4/23ab36d46f0f42599faff337c7fdd724/FLAGa51bb01eb [2022-11-03 04:08:24,571 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:08:24,580 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i [2022-11-03 04:08:24,608 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/data/dbfc4c6f4/23ab36d46f0f42599faff337c7fdd724/FLAGa51bb01eb [2022-11-03 04:08:24,759 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/data/dbfc4c6f4/23ab36d46f0f42599faff337c7fdd724 [2022-11-03 04:08:24,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:08:24,768 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:08:24,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:08:24,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:08:24,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:08:24,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:08:24" (1/1) ... [2022-11-03 04:08:24,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@167fa117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:24, skipping insertion in model container [2022-11-03 04:08:24,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:08:24" (1/1) ... [2022-11-03 04:08:24,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:08:24,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:08:25,450 WARN L230 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_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i[33021,33034] [2022-11-03 04:08:25,650 WARN L230 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_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i[44590,44603] [2022-11-03 04:08:25,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:08:25,680 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:08:25,715 WARN L230 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_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i[33021,33034] [2022-11-03 04:08:25,764 WARN L230 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_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i[44590,44603] [2022-11-03 04:08:25,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:08:25,814 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:08:25,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:25 WrapperNode [2022-11-03 04:08:25,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:08:25,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:08:25,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:08:25,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:08:25,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:25" (1/1) ... [2022-11-03 04:08:25,856 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:25" (1/1) ... [2022-11-03 04:08:25,943 INFO L138 Inliner]: procedures = 177, calls = 336, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1189 [2022-11-03 04:08:25,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:08:25,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:08:25,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:08:25,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:08:25,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:25" (1/1) ... [2022-11-03 04:08:25,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:25" (1/1) ... [2022-11-03 04:08:25,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:25" (1/1) ... [2022-11-03 04:08:25,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:25" (1/1) ... [2022-11-03 04:08:26,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:25" (1/1) ... [2022-11-03 04:08:26,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:25" (1/1) ... [2022-11-03 04:08:26,040 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:25" (1/1) ... [2022-11-03 04:08:26,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:25" (1/1) ... [2022-11-03 04:08:26,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:08:26,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:08:26,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:08:26,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:08:26,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:25" (1/1) ... [2022-11-03 04:08:26,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:08:26,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:26,120 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:08:26,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:08:26,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 04:08:26,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-03 04:08:26,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-03 04:08:26,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 04:08:26,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 04:08:26,171 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 04:08:26,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 04:08:26,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:08:26,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 04:08:26,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 04:08:26,172 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-03 04:08:26,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 04:08:26,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 04:08:26,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:08:26,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:08:26,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:08:26,582 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:08:26,584 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:08:28,634 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:08:29,189 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:08:29,190 INFO L300 CfgBuilder]: Removed 72 assume(true) statements. [2022-11-03 04:08:29,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:08:29 BoogieIcfgContainer [2022-11-03 04:08:29,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:08:29,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:08:29,197 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:08:29,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:08:29,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:08:24" (1/3) ... [2022-11-03 04:08:29,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b9d0edd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:08:29, skipping insertion in model container [2022-11-03 04:08:29,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:25" (2/3) ... [2022-11-03 04:08:29,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b9d0edd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:08:29, skipping insertion in model container [2022-11-03 04:08:29,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:08:29" (3/3) ... [2022-11-03 04:08:29,207 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test3-2.i [2022-11-03 04:08:29,234 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:08:29,234 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-03 04:08:29,323 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:08:29,336 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;@61e5b7d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:08:29,336 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-03 04:08:29,344 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 128 states have (on average 1.8125) internal successors, (232), 141 states have internal predecessors, (232), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-03 04:08:29,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 04:08:29,353 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:29,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 04:08:29,355 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 04:08:29,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:29,364 INFO L85 PathProgramCache]: Analyzing trace with hash 30014351, now seen corresponding path program 1 times [2022-11-03 04:08:29,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:29,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086632528] [2022-11-03 04:08:29,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:29,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:29,545 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:08:29,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1307842390] [2022-11-03 04:08:29,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:29,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:29,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:29,555 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:29,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 04:08:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:29,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-03 04:08:29,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:29,900 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-03 04:08:29,911 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:08:29,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:29,957 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-03 04:08:29,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:29,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:29,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:29,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086632528] [2022-11-03 04:08:29,969 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:08:29,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307842390] [2022-11-03 04:08:29,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307842390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:29,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:29,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:08:29,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918613535] [2022-11-03 04:08:29,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:29,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:08:29,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:30,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:08:30,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:08:30,013 INFO L87 Difference]: Start difference. First operand has 147 states, 128 states have (on average 1.8125) internal successors, (232), 141 states have internal predecessors, (232), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2022-11-03 04:08:33,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:08:33,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:33,381 INFO L93 Difference]: Finished difference Result 365 states and 629 transitions. [2022-11-03 04:08:33,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:08:33,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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 [2022-11-03 04:08:33,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:33,400 INFO L225 Difference]: With dead ends: 365 [2022-11-03 04:08:33,400 INFO L226 Difference]: Without dead ends: 201 [2022-11-03 04:08:33,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:08:33,406 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 77 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:33,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 394 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-03 04:08:33,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-11-03 04:08:33,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 136. [2022-11-03 04:08:33,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 118 states have (on average 1.2627118644067796) internal successors, (149), 130 states have internal predecessors, (149), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-03 04:08:33,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 165 transitions. [2022-11-03 04:08:33,479 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 165 transitions. Word has length 4 [2022-11-03 04:08:33,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:33,479 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 165 transitions. [2022-11-03 04:08:33,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2022-11-03 04:08:33,480 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 165 transitions. [2022-11-03 04:08:33,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 04:08:33,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:33,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:33,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 04:08:33,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-03 04:08:33,689 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 04:08:33,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:33,690 INFO L85 PathProgramCache]: Analyzing trace with hash -2038898776, now seen corresponding path program 1 times [2022-11-03 04:08:33,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:33,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850711540] [2022-11-03 04:08:33,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:33,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:33,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:33,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:33,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850711540] [2022-11-03 04:08:33,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850711540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:33,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:33,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:08:33,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695465731] [2022-11-03 04:08:33,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:33,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:08:33,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:33,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:08:33,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:08:33,937 INFO L87 Difference]: Start difference. First operand 136 states and 165 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:35,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:08:36,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:36,167 INFO L93 Difference]: Finished difference Result 266 states and 333 transitions. [2022-11-03 04:08:36,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:08:36,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-11-03 04:08:36,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:36,176 INFO L225 Difference]: With dead ends: 266 [2022-11-03 04:08:36,176 INFO L226 Difference]: Without dead ends: 195 [2022-11-03 04:08:36,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:08:36,178 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 68 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:36,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 377 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-03 04:08:36,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-03 04:08:36,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 136. [2022-11-03 04:08:36,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 118 states have (on average 1.2542372881355932) internal successors, (148), 130 states have internal predecessors, (148), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-03 04:08:36,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 164 transitions. [2022-11-03 04:08:36,196 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 164 transitions. Word has length 9 [2022-11-03 04:08:36,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:36,197 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 164 transitions. [2022-11-03 04:08:36,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:36,197 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 164 transitions. [2022-11-03 04:08:36,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-03 04:08:36,199 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:36,199 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] [2022-11-03 04:08:36,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:08:36,200 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 04:08:36,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:36,201 INFO L85 PathProgramCache]: Analyzing trace with hash -446847579, now seen corresponding path program 1 times [2022-11-03 04:08:36,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:36,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991480814] [2022-11-03 04:08:36,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:36,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:36,406 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:08:36,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1570583571] [2022-11-03 04:08:36,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:36,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:36,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:36,409 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:36,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 04:08:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:37,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 1578 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 04:08:37,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:37,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:37,417 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:37,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:37,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991480814] [2022-11-03 04:08:37,417 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:08:37,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570583571] [2022-11-03 04:08:37,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570583571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:37,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:37,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:08:37,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597339593] [2022-11-03 04:08:37,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:37,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:08:37,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:37,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:08:37,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:08:37,425 INFO L87 Difference]: Start difference. First operand 136 states and 164 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 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) [2022-11-03 04:08:39,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:08:41,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:08:41,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:41,210 INFO L93 Difference]: Finished difference Result 332 states and 405 transitions. [2022-11-03 04:08:41,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:08:41,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 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 [2022-11-03 04:08:41,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:41,235 INFO L225 Difference]: With dead ends: 332 [2022-11-03 04:08:41,235 INFO L226 Difference]: Without dead ends: 201 [2022-11-03 04:08:41,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:08:41,237 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 64 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:41,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 298 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 58 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-11-03 04:08:41,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-11-03 04:08:41,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 181. [2022-11-03 04:08:41,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 163 states have (on average 1.2269938650306749) internal successors, (200), 175 states have internal predecessors, (200), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-03 04:08:41,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 216 transitions. [2022-11-03 04:08:41,251 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 216 transitions. Word has length 28 [2022-11-03 04:08:41,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:41,252 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 216 transitions. [2022-11-03 04:08:41,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 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) [2022-11-03 04:08:41,252 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 216 transitions. [2022-11-03 04:08:41,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-03 04:08:41,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:41,254 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] [2022-11-03 04:08:41,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:41,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:41,479 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 04:08:41,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:41,479 INFO L85 PathProgramCache]: Analyzing trace with hash 599024343, now seen corresponding path program 1 times [2022-11-03 04:08:41,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:41,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366091658] [2022-11-03 04:08:41,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:41,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:41,616 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:08:41,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2080861908] [2022-11-03 04:08:41,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:41,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:41,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:41,627 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:41,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 04:09:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:03,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 04:09:03,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:03,157 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:09:03,158 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:09:03,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:03,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366091658] [2022-11-03 04:09:03,159 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:09:03,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080861908] [2022-11-03 04:09:03,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080861908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:03,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:03,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:09:03,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850946533] [2022-11-03 04:09:03,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:03,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:09:03,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:03,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:09:03,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:09:03,163 INFO L87 Difference]: Start difference. First operand 181 states and 216 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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) [2022-11-03 04:09:04,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:04,615 INFO L93 Difference]: Finished difference Result 346 states and 418 transitions. [2022-11-03 04:09:04,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:09:04,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 41 [2022-11-03 04:09:04,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:04,631 INFO L225 Difference]: With dead ends: 346 [2022-11-03 04:09:04,632 INFO L226 Difference]: Without dead ends: 183 [2022-11-03 04:09:04,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:09:04,634 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 1 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:04,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 416 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-03 04:09:04,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-03 04:09:04,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2022-11-03 04:09:04,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 164 states have (on average 1.2317073170731707) internal successors, (202), 177 states have internal predecessors, (202), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2022-11-03 04:09:04,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 219 transitions. [2022-11-03 04:09:04,652 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 219 transitions. Word has length 41 [2022-11-03 04:09:04,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:04,653 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 219 transitions. [2022-11-03 04:09:04,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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) [2022-11-03 04:09:04,654 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 219 transitions. [2022-11-03 04:09:04,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-03 04:09:04,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:04,655 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] [2022-11-03 04:09:04,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 04:09:04,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:09:04,886 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 04:09:04,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:04,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1293090091, now seen corresponding path program 1 times [2022-11-03 04:09:04,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:04,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868269329] [2022-11-03 04:09:04,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:04,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:04,962 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:09:04,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [173021291] [2022-11-03 04:09:04,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:04,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:09:04,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:09:04,965 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:09:04,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 04:10:08,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:08,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 04:10:08,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:08,138 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 04:10:08,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:08,294 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 04:10:08,294 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:10:08,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868269329] [2022-11-03 04:10:08,295 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:10:08,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173021291] [2022-11-03 04:10:08,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173021291] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:10:08,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1018194872] [2022-11-03 04:10:08,325 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2022-11-03 04:10:08,325 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:10:08,329 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:10:08,336 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:10:08,343 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:10:08,453 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:10:08,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:10:08,463 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 04:10:08,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:10:08,496 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 04:10:08,497 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-03 04:10:08,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:10:08,515 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-03 04:10:08,531 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:10:08,599 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:10:08,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:10:08,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:10:08,639 INFO L356 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-03 04:10:08,640 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-03 04:10:08,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:10:08,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:10:08,700 INFO L356 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-03 04:10:08,701 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-03 04:10:08,723 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:10:08,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:10:08,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:10:08,748 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 38 [2022-11-03 04:10:08,800 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:10:08,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:10:08,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:10:08,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:10:08,817 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 84 treesize of output 64 [2022-11-03 04:10:08,837 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:10:09,207 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 24 treesize of output 9 [2022-11-03 04:10:09,218 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 23 treesize of output 22 [2022-11-03 04:10:09,242 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 29 treesize of output 19 [2022-11-03 04:10:09,259 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 29 treesize of output 19 [2022-11-03 04:10:09,281 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-03 04:10:09,291 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-03 04:10:09,308 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 25 [2022-11-03 04:10:09,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 25 [2022-11-03 04:10:09,362 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-03 04:10:09,375 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 11 [2022-11-03 04:10:09,384 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 24 treesize of output 15 [2022-11-03 04:10:09,402 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-03 04:10:09,420 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 25 [2022-11-03 04:10:09,478 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-03 04:10:09,483 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-03 04:10:09,490 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-03 04:10:09,506 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-03 04:10:09,514 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-03 04:10:09,522 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-03 04:10:09,550 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-03 04:10:09,556 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-03 04:10:09,562 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-03 04:10:09,603 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:10:09,604 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 30 [2022-11-03 04:10:09,621 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:10:09,622 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 04:10:09,634 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:10:09,634 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 16 [2022-11-03 04:10:09,744 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:10:09,745 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 30 [2022-11-03 04:10:09,759 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:10:09,759 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 04:10:09,772 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:10:09,773 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 16 [2022-11-03 04:10:21,698 WARN L234 SmtUtils]: Spent 11.83s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 04:10:21,699 INFO L356 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-03 04:10:21,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 04:10:21,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:10:21,902 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: |v_#memory_$Pointer$.base_434| input size 141 context size 141 output size 141 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) 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) 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.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:336) 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) [2022-11-03 04:10:21,907 INFO L158 Benchmark]: Toolchain (without parser) took 117139.12ms. Allocated memory was 115.3MB in the beginning and 201.3MB in the end (delta: 86.0MB). Free memory was 78.1MB in the beginning and 119.2MB in the end (delta: -41.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-03 04:10:21,907 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 115.3MB. Free memory is still 97.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:10:21,907 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1042.19ms. Allocated memory is still 115.3MB. Free memory was 77.8MB in the beginning and 67.3MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 04:10:21,908 INFO L158 Benchmark]: Boogie Procedure Inliner took 127.79ms. Allocated memory is still 115.3MB. Free memory was 67.3MB in the beginning and 58.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 04:10:21,909 INFO L158 Benchmark]: Boogie Preprocessor took 125.55ms. Allocated memory is still 115.3MB. Free memory was 58.6MB in the beginning and 49.4MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 04:10:21,909 INFO L158 Benchmark]: RCFGBuilder took 3123.67ms. Allocated memory was 115.3MB in the beginning and 161.5MB in the end (delta: 46.1MB). Free memory was 49.4MB in the beginning and 59.4MB in the end (delta: -10.0MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2022-11-03 04:10:21,911 INFO L158 Benchmark]: TraceAbstraction took 112709.00ms. Allocated memory was 161.5MB in the beginning and 201.3MB in the end (delta: 39.8MB). Free memory was 59.4MB in the beginning and 119.2MB in the end (delta: -59.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:10:21,915 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 115.3MB. Free memory is still 97.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1042.19ms. Allocated memory is still 115.3MB. Free memory was 77.8MB in the beginning and 67.3MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 127.79ms. Allocated memory is still 115.3MB. Free memory was 67.3MB in the beginning and 58.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 125.55ms. Allocated memory is still 115.3MB. Free memory was 58.6MB in the beginning and 49.4MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 3123.67ms. Allocated memory was 115.3MB in the beginning and 161.5MB in the end (delta: 46.1MB). Free memory was 49.4MB in the beginning and 59.4MB in the end (delta: -10.0MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. * TraceAbstraction took 112709.00ms. Allocated memory was 161.5MB in the beginning and 201.3MB in the end (delta: 39.8MB). Free memory was 59.4MB in the beginning and 119.2MB in the end (delta: -59.7MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: |v_#memory_$Pointer$.base_434| input size 141 context size 141 output size 141 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: |v_#memory_$Pointer$.base_434| input size 141 context size 141 output size 141: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-03 04:10:21,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe6b3db-4eb4-4187-ba13-56fb3ccfda11/bin/utaipan-7li7fVZpFI/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: |v_#memory_$Pointer$.base_434| input size 141 context size 141 output size 141