./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bfb70cce6cd508003f6161c30aa2ac99ac8ddeb6209ddd86b65ca0c623c2fb1c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 14:11:14,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:11:14,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:11:14,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:11:14,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:11:14,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:11:14,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:11:14,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:11:14,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:11:14,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:11:14,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:11:14,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:11:14,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:11:14,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:11:14,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:11:14,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:11:14,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:11:14,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:11:14,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:11:14,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:11:14,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:11:14,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:11:14,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:11:14,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:11:14,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:11:14,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:11:14,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:11:14,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:11:14,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:11:14,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:11:14,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:11:14,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:11:14,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:11:14,676 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:11:14,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:11:14,677 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:11:14,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:11:14,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:11:14,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:11:14,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:11:14,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:11:14,681 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 14:11:14,701 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:11:14,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:11:14,702 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:11:14,702 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:11:14,702 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:11:14,702 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:11:14,703 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:11:14,703 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:11:14,703 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:11:14,703 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:11:14,703 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:11:14,703 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:11:14,703 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:11:14,703 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:11:14,703 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:11:14,704 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:11:14,704 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:11:14,704 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:11:14,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:11:14,704 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:11:14,705 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 14:11:14,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:11:14,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:11:14,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:11:14,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:11:14,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:11:14,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:11:14,705 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 14:11:14,705 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:11:14,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:11:14,706 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:11:14,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:11:14,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:11:14,706 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:11:14,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:11:14,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:11:14,706 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:11:14,707 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:11:14,707 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:11:14,707 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:11:14,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:11:14,707 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:11:14,707 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:11:14,707 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_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfb70cce6cd508003f6161c30aa2ac99ac8ddeb6209ddd86b65ca0c623c2fb1c [2022-12-14 14:11:14,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:11:14,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:11:14,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:11:14,921 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:11:14,921 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:11:14,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i [2022-12-14 14:11:17,565 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:11:17,758 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:11:17,758 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i [2022-12-14 14:11:17,767 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/data/398920cb9/d1aa532d14794639891afd171a4294e7/FLAG33ea8274c [2022-12-14 14:11:17,777 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/data/398920cb9/d1aa532d14794639891afd171a4294e7 [2022-12-14 14:11:17,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:11:17,780 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:11:17,781 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:11:17,781 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:11:17,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:11:17,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:11:17" (1/1) ... [2022-12-14 14:11:17,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@382e2056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:17, skipping insertion in model container [2022-12-14 14:11:17,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:11:17" (1/1) ... [2022-12-14 14:11:17,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:11:17,823 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:11:18,049 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i[33021,33034] [2022-12-14 14:11:18,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:11:18,110 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:11:18,132 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i[33021,33034] [2022-12-14 14:11:18,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:11:18,189 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:11:18,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:18 WrapperNode [2022-12-14 14:11:18,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:11:18,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:11:18,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:11:18,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:11:18,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:18" (1/1) ... [2022-12-14 14:11:18,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:18" (1/1) ... [2022-12-14 14:11:18,248 INFO L138 Inliner]: procedures = 177, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 778 [2022-12-14 14:11:18,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:11:18,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:11:18,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:11:18,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:11:18,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:18" (1/1) ... [2022-12-14 14:11:18,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:18" (1/1) ... [2022-12-14 14:11:18,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:18" (1/1) ... [2022-12-14 14:11:18,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:18" (1/1) ... [2022-12-14 14:11:18,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:18" (1/1) ... [2022-12-14 14:11:18,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:18" (1/1) ... [2022-12-14 14:11:18,293 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:18" (1/1) ... [2022-12-14 14:11:18,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:18" (1/1) ... [2022-12-14 14:11:18,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:11:18,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:11:18,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:11:18,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:11:18,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:18" (1/1) ... [2022-12-14 14:11:18,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:11:18,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:11:18,326 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:11:18,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:11:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 14:11:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 14:11:18,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 14:11:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:11:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 14:11:18,364 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 14:11:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 14:11:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:11:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:11:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 14:11:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 14:11:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:11:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:11:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:11:18,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:11:18,500 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:11:18,502 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:11:19,362 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:11:19,618 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:11:19,619 INFO L300 CfgBuilder]: Removed 40 assume(true) statements. [2022-12-14 14:11:19,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:11:19 BoogieIcfgContainer [2022-12-14 14:11:19,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:11:19,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:11:19,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:11:19,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:11:19,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:11:17" (1/3) ... [2022-12-14 14:11:19,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36cad557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:11:19, skipping insertion in model container [2022-12-14 14:11:19,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:11:18" (2/3) ... [2022-12-14 14:11:19,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36cad557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:11:19, skipping insertion in model container [2022-12-14 14:11:19,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:11:19" (3/3) ... [2022-12-14 14:11:19,629 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test1-2.i [2022-12-14 14:11:19,642 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:11:19,643 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 14:11:19,690 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:11:19,694 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;@7510c73f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:11:19,695 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-14 14:11:19,698 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 81 states have (on average 1.8024691358024691) internal successors, (146), 97 states have internal predecessors, (146), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 14:11:19,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 14:11:19,702 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:11:19,703 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 14:11:19,703 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:11:19,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:11:19,707 INFO L85 PathProgramCache]: Analyzing trace with hash 656327, now seen corresponding path program 1 times [2022-12-14 14:11:19,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:11:19,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143518572] [2022-12-14 14:11:19,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:11:19,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:11:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:11:19,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:11:19,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:11:19,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143518572] [2022-12-14 14:11:19,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143518572] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:11:19,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:11:19,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 14:11:19,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247992414] [2022-12-14 14:11:19,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:11:19,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 14:11:19,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:11:19,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 14:11:19,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:11:19,892 INFO L87 Difference]: Start difference. First operand has 103 states, 81 states have (on average 1.8024691358024691) internal successors, (146), 97 states have internal predecessors, (146), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:11:20,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:11:20,281 INFO L93 Difference]: Finished difference Result 204 states and 343 transitions. [2022-12-14 14:11:20,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 14:11:20,285 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 14:11:20,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:11:20,292 INFO L225 Difference]: With dead ends: 204 [2022-12-14 14:11:20,292 INFO L226 Difference]: Without dead ends: 87 [2022-12-14 14:11:20,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:11:20,297 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:11:20,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 14:11:20,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-12-14 14:11:20,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-12-14 14:11:20,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 67 states have (on average 1.328358208955224) internal successors, (89), 81 states have internal predecessors, (89), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 14:11:20,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 115 transitions. [2022-12-14 14:11:20,330 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 115 transitions. Word has length 3 [2022-12-14 14:11:20,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:11:20,331 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 115 transitions. [2022-12-14 14:11:20,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:11:20,331 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 115 transitions. [2022-12-14 14:11:20,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 14:11:20,331 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:11:20,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 14:11:20,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:11:20,332 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:11:20,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:11:20,333 INFO L85 PathProgramCache]: Analyzing trace with hash 20346196, now seen corresponding path program 1 times [2022-12-14 14:11:20,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:11:20,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787556635] [2022-12-14 14:11:20,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:11:20,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:11:20,359 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:11:20,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1420651561] [2022-12-14 14:11:20,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:11:20,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:11:20,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:11:20,361 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:11:20,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 14:11:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:11:20,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:11:20,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:11:20,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:11:20,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:11:20,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:11:20,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787556635] [2022-12-14 14:11:20,485 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:11:20,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420651561] [2022-12-14 14:11:20,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420651561] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:11:20,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:11:20,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 14:11:20,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820966890] [2022-12-14 14:11:20,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:11:20,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:11:20,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:11:20,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:11:20,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:11:20,488 INFO L87 Difference]: Start difference. First operand 87 states and 115 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:11:20,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:11:20,937 INFO L93 Difference]: Finished difference Result 170 states and 226 transitions. [2022-12-14 14:11:20,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:11:20,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 14:11:20,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:11:20,940 INFO L225 Difference]: With dead ends: 170 [2022-12-14 14:11:20,941 INFO L226 Difference]: Without dead ends: 141 [2022-12-14 14:11:20,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:11:20,942 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 53 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:11:20,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 203 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 14:11:20,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-12-14 14:11:20,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 90. [2022-12-14 14:11:20,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 70 states have (on average 1.3142857142857143) internal successors, (92), 84 states have internal predecessors, (92), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 14:11:20,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 118 transitions. [2022-12-14 14:11:20,950 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 118 transitions. Word has length 4 [2022-12-14 14:11:20,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:11:20,950 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 118 transitions. [2022-12-14 14:11:20,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:11:20,951 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 118 transitions. [2022-12-14 14:11:20,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 14:11:20,951 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:11:20,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:11:20,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:11:21,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-12-14 14:11:21,154 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:11:21,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:11:21,155 INFO L85 PathProgramCache]: Analyzing trace with hash 2085923058, now seen corresponding path program 1 times [2022-12-14 14:11:21,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:11:21,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717210968] [2022-12-14 14:11:21,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:11:21,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:11:21,261 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:11:21,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [472566217] [2022-12-14 14:11:21,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:11:21,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:11:21,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:11:21,263 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:11:21,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 14:11:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:11:21,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 1548 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:11:21,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:11:21,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:11:21,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:11:21,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:11:21,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717210968] [2022-12-14 14:11:21,790 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:11:21,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472566217] [2022-12-14 14:11:21,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472566217] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:11:21,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:11:21,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:11:21,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486826762] [2022-12-14 14:11:21,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:11:21,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:11:21,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:11:21,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:11:21,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:11:21,793 INFO L87 Difference]: Start difference. First operand 90 states and 118 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:11:22,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:11:22,579 INFO L93 Difference]: Finished difference Result 90 states and 118 transitions. [2022-12-14 14:11:22,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:11:22,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-12-14 14:11:22,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:11:22,584 INFO L225 Difference]: With dead ends: 90 [2022-12-14 14:11:22,584 INFO L226 Difference]: Without dead ends: 89 [2022-12-14 14:11:22,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:11:22,585 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 60 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 14:11:22,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 207 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 14:11:22,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-12-14 14:11:22,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2022-12-14 14:11:22,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 70 states have (on average 1.3) internal successors, (91), 83 states have internal predecessors, (91), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 14:11:22,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 117 transitions. [2022-12-14 14:11:22,594 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 117 transitions. Word has length 27 [2022-12-14 14:11:22,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:11:22,594 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 117 transitions. [2022-12-14 14:11:22,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:11:22,595 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 117 transitions. [2022-12-14 14:11:22,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 14:11:22,595 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:11:22,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:11:22,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 14:11:22,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:11:22,797 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:11:22,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:11:22,798 INFO L85 PathProgramCache]: Analyzing trace with hash 239105766, now seen corresponding path program 1 times [2022-12-14 14:11:22,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:11:22,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370758802] [2022-12-14 14:11:22,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:11:22,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:11:22,942 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:11:22,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1408216955] [2022-12-14 14:11:22,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:11:22,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:11:22,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:11:22,944 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:11:22,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 14:11:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:11:23,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 1549 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:11:23,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:11:23,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:11:23,494 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:11:23,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:11:23,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370758802] [2022-12-14 14:11:23,495 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:11:23,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408216955] [2022-12-14 14:11:23,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408216955] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:11:23,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:11:23,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:11:23,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690626334] [2022-12-14 14:11:23,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:11:23,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:11:23,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:11:23,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:11:23,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:11:23,498 INFO L87 Difference]: Start difference. First operand 89 states and 117 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:11:26,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:11:26,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:11:26,981 INFO L93 Difference]: Finished difference Result 139 states and 175 transitions. [2022-12-14 14:11:26,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:11:26,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-12-14 14:11:26,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:11:26,997 INFO L225 Difference]: With dead ends: 139 [2022-12-14 14:11:26,998 INFO L226 Difference]: Without dead ends: 138 [2022-12-14 14:11:26,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:11:26,999 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 29 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:11:26,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 299 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 14:11:27,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-12-14 14:11:27,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2022-12-14 14:11:27,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 116 states have (on average 1.2241379310344827) internal successors, (142), 129 states have internal predecessors, (142), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 14:11:27,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 174 transitions. [2022-12-14 14:11:27,013 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 174 transitions. Word has length 28 [2022-12-14 14:11:27,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:11:27,013 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 174 transitions. [2022-12-14 14:11:27,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:11:27,013 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 174 transitions. [2022-12-14 14:11:27,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 14:11:27,014 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:11:27,015 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:11:27,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 14:11:27,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:11:27,216 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:11:27,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:11:27,218 INFO L85 PathProgramCache]: Analyzing trace with hash 2144752483, now seen corresponding path program 1 times [2022-12-14 14:11:27,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:11:27,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912850329] [2022-12-14 14:11:27,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:11:27,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:11:27,340 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:11:27,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1805832553] [2022-12-14 14:11:27,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:11:27,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:11:27,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:11:27,342 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:11:27,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 14:11:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:11:27,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 1579 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 14:11:27,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:11:27,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:11:27,948 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:11:27,948 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:11:27,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912850329] [2022-12-14 14:11:27,948 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:11:27,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805832553] [2022-12-14 14:11:27,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805832553] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:11:27,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:11:27,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:11:27,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136673344] [2022-12-14 14:11:27,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:11:27,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:11:27,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:11:27,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:11:27,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:11:27,950 INFO L87 Difference]: Start difference. First operand 138 states and 174 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:11:28,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:11:28,943 INFO L93 Difference]: Finished difference Result 248 states and 316 transitions. [2022-12-14 14:11:28,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:11:28,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-12-14 14:11:28,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:11:28,949 INFO L225 Difference]: With dead ends: 248 [2022-12-14 14:11:28,949 INFO L226 Difference]: Without dead ends: 136 [2022-12-14 14:11:28,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:11:28,951 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 11 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:11:28,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 191 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 14:11:28,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-12-14 14:11:28,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2022-12-14 14:11:28,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 114 states have (on average 1.219298245614035) internal successors, (139), 127 states have internal predecessors, (139), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 14:11:28,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 171 transitions. [2022-12-14 14:11:28,965 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 171 transitions. Word has length 31 [2022-12-14 14:11:28,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:11:28,965 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 171 transitions. [2022-12-14 14:11:28,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:11:28,965 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 171 transitions. [2022-12-14 14:11:28,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-14 14:11:28,967 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:11:28,967 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:11:28,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 14:11:29,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:11:29,169 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:11:29,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:11:29,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1997718878, now seen corresponding path program 1 times [2022-12-14 14:11:29,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:11:29,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667090430] [2022-12-14 14:11:29,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:11:29,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:11:29,248 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:11:29,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [354119631] [2022-12-14 14:11:29,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:11:29,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:11:29,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:11:29,250 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:11:29,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 14:11:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:11:41,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 14:11:41,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:11:41,702 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:11:41,702 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:11:41,703 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:11:41,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667090430] [2022-12-14 14:11:41,703 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:11:41,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354119631] [2022-12-14 14:11:41,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354119631] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:11:41,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:11:41,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:11:41,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628639331] [2022-12-14 14:11:41,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:11:41,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:11:41,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:11:41,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:11:41,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:11:41,705 INFO L87 Difference]: Start difference. First operand 136 states and 171 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 14:11:42,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:11:42,821 INFO L93 Difference]: Finished difference Result 254 states and 328 transitions. [2022-12-14 14:11:42,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:11:42,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-12-14 14:11:42,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:11:42,827 INFO L225 Difference]: With dead ends: 254 [2022-12-14 14:11:42,827 INFO L226 Difference]: Without dead ends: 138 [2022-12-14 14:11:42,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:11:42,828 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 1 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:11:42,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 299 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 14:11:42,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-12-14 14:11:42,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2022-12-14 14:11:42,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 115 states have (on average 1.2260869565217392) internal successors, (141), 129 states have internal predecessors, (141), 16 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2022-12-14 14:11:42,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 175 transitions. [2022-12-14 14:11:42,835 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 175 transitions. Word has length 44 [2022-12-14 14:11:42,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:11:42,835 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 175 transitions. [2022-12-14 14:11:42,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 14:11:42,836 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 175 transitions. [2022-12-14 14:11:42,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-14 14:11:42,836 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:11:42,836 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:11:42,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 14:11:43,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:11:43,038 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:11:43,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:11:43,040 INFO L85 PathProgramCache]: Analyzing trace with hash 587318850, now seen corresponding path program 1 times [2022-12-14 14:11:43,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:11:43,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820703672] [2022-12-14 14:11:43,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:11:43,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:11:43,118 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:11:43,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [622949708] [2022-12-14 14:11:43,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:11:43,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:11:43,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:11:43,120 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:11:43,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd93a9d5-09cb-483c-b6b5-4faab83fb5bf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 14:12:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:12:07,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 14:12:07,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:12:07,246 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 14:12:07,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:12:07,326 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 14:12:07,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:12:07,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820703672] [2022-12-14 14:12:07,327 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:12:07,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622949708] [2022-12-14 14:12:07,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622949708] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:12:07,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1136022196] [2022-12-14 14:12:07,343 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2022-12-14 14:12:07,343 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:12:07,346 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:12:07,350 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:12:07,350 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:12:07,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 14:12:07,446 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 14:12:07,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-12-14 14:12:07,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 14:12:07,471 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 14:12:07,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 32 [2022-12-14 14:12:07,504 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 14:12:07,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 14:12:07,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 14:12:07,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 14:12:07,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 14:12:07,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 14:12:07,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:07,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-12-14 14:12:07,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 14:12:07,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 14:12:08,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 14:12:08,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 14:12:08,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897003 treesize of output 5376293 [2022-12-14 14:12:08,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 14:12:08,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 14:12:08,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 14:12:08,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 14:12:08,308 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 14:12:08,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-12-14 14:12:08,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-12-14 14:12:08,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 14:12:08,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 14:12:08,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 14:12:08,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-12-14 14:12:08,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-12-14 14:12:08,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-12-14 14:12:08,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 14:12:08,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 14:12:08,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 14:12:08,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-12-14 14:12:08,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 14:12:08,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-12-14 14:12:08,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:12:08,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-12-14 14:12:08,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 14:12:08,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-12-14 14:12:09,438 INFO L217 Elim1Store]: Index analysis took 366 ms [2022-12-14 14:12:15,480 WARN L233 SmtUtils]: Spent 6.04s on a formula simplification. DAG size of input: 78 DAG size of output: 27 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 14:12:15,481 INFO L321 Elim1Store]: treesize reduction 128, result has 22.4 percent of original size [2022-12-14 14:12:15,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 10752687 treesize of output 10752705 [2022-12-14 14:12:15,946 INFO L217 Elim1Store]: Index analysis took 316 ms [2022-12-14 14:12:15,959 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-12-14 14:12:15,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 10752682 treesize of output 10752685 [2022-12-14 14:12:22,617 WARN L233 SmtUtils]: Spent 6.55s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 14:12:22,618 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-12-14 14:12:22,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1476 [2022-12-14 14:12:22,844 INFO L217 Elim1Store]: Index analysis took 113 ms [2022-12-14 14:12:41,283 WARN L233 SmtUtils]: Spent 18.44s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 14:12:41,284 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-12-14 14:12:41,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1819 [2022-12-14 14:12:42,740 INFO L217 Elim1Store]: Index analysis took 894 ms [2022-12-14 14:13:09,374 WARN L233 SmtUtils]: Spent 25.96s on a formula simplification. DAG size of input: 261 DAG size of output: 159 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 14:13:09,375 INFO L321 Elim1Store]: treesize reduction 22290, result has 25.6 percent of original size [2022-12-14 14:13:09,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 5638 treesize of output 15985 [2022-12-14 14:13:10,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:10,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 69 [2022-12-14 14:13:10,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:10,284 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:10,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 55 [2022-12-14 14:13:10,328 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:10,362 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:10,408 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:10,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 212 [2022-12-14 14:13:10,484 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 14:13:10,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:10,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:10,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-12-14 14:13:11,792 INFO L217 Elim1Store]: Index analysis took 925 ms [2022-12-14 14:13:12,510 INFO L321 Elim1Store]: treesize reduction 36, result has 33.3 percent of original size [2022-12-14 14:13:12,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 113 [2022-12-14 14:13:12,631 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 14:13:12,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15 [2022-12-14 14:13:13,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:13,127 INFO L217 Elim1Store]: Index analysis took 174 ms [2022-12-14 14:13:13,139 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 14:13:13,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 30 [2022-12-14 14:13:14,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:14,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 14:13:15,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:15,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 14:13:48,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:48,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-12-14 14:14:17,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:14:17,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-12-14 14:14:58,508 WARN L233 SmtUtils]: Spent 6.11s on a formula simplification that was a NOOP. DAG size: 27013 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 14:16:47,944 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 14:16:48,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 49 [2022-12-14 14:16:48,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:16:48,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:16:48,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 54 [2022-12-14 14:17:34,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:17:34,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:17:34,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 194 [2022-12-14 14:17:35,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:17:35,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 541 treesize of output 187 [2022-12-14 14:17:35,258 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 14:17:38,356 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-12-14 14:17:38,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 649 treesize of output 574 [2022-12-14 14:17:38,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2022-12-14 14:17:40,014 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-12-14 14:17:40,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 1129 treesize of output 1042 [2022-12-14 14:17:40,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-12-14 14:18:15,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:18:16,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:18:16,019 INFO L217 Elim1Store]: Index analysis took 103 ms [2022-12-14 14:18:16,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 26 [2022-12-14 14:18:16,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2022-12-14 14:23:39,777 INFO L217 Elim1Store]: Index analysis took 285562 ms