./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.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_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/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_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/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_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/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 f4a8b24485e53fece96b44fdc12e6f161e1bbffda2cd597a930f4925e148dc01 --- 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 13:02:43,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:02:43,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:02:43,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:02:43,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:02:43,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:02:43,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:02:43,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:02:43,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:02:43,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:02:43,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:02:43,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:02:43,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:02:43,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:02:43,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:02:43,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:02:43,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:02:43,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:02:43,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:02:43,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:02:43,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:02:43,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:02:43,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:02:43,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:02:43,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:02:43,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:02:43,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:02:43,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:02:43,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:02:43,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:02:43,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:02:43,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:02:43,719 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:02:43,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:02:43,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:02:43,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:02:43,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:02:43,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:02:43,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:02:43,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:02:43,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:02:43,723 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 13:02:43,739 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:02:43,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:02:43,739 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:02:43,739 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:02:43,740 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:02:43,740 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:02:43,740 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:02:43,740 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:02:43,740 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:02:43,740 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:02:43,741 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:02:43,741 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:02:43,741 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:02:43,741 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:02:43,741 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:02:43,741 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:02:43,741 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:02:43,741 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:02:43,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:02:43,742 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:02:43,742 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:02:43,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:02:43,742 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:02:43,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:02:43,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:02:43,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:02:43,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:02:43,743 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 13:02:43,743 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:02:43,743 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:02:43,743 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:02:43,743 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:02:43,744 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:02:43,744 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:02:43,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:02:43,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:02:43,744 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:02:43,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:02:43,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:02:43,744 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:02:43,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:02:43,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:02:43,745 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:02:43,745 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_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4a8b24485e53fece96b44fdc12e6f161e1bbffda2cd597a930f4925e148dc01 [2022-12-14 13:02:43,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:02:43,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:02:43,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:02:43,926 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:02:43,926 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:02:43,927 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i [2022-12-14 13:02:46,606 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:02:46,867 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:02:46,868 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i [2022-12-14 13:02:46,880 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/data/da31b8479/9f02c05b437741a98c4185e518df24a8/FLAG54b5fddc7 [2022-12-14 13:02:46,890 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/data/da31b8479/9f02c05b437741a98c4185e518df24a8 [2022-12-14 13:02:46,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:02:46,893 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:02:46,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:02:46,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:02:46,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:02:46,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:02:46" (1/1) ... [2022-12-14 13:02:46,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2670bf30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:02:46, skipping insertion in model container [2022-12-14 13:02:46,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:02:46" (1/1) ... [2022-12-14 13:02:46,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:02:46,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:02:47,234 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_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i[33021,33034] [2022-12-14 13:02:47,374 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:02:47,375 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_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i[84583,84596] [2022-12-14 13:02:47,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:02:47,386 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:02:47,408 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_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i[33021,33034] [2022-12-14 13:02:47,500 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:02:47,502 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_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i[84583,84596] [2022-12-14 13:02:47,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:02:47,536 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:02:47,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:02:47 WrapperNode [2022-12-14 13:02:47,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:02:47,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:02:47,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:02:47,538 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:02:47,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:02:47" (1/1) ... [2022-12-14 13:02:47,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:02:47" (1/1) ... [2022-12-14 13:02:47,625 INFO L138 Inliner]: procedures = 177, calls = 730, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2868 [2022-12-14 13:02:47,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:02:47,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:02:47,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:02:47,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:02:47,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:02:47" (1/1) ... [2022-12-14 13:02:47,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:02:47" (1/1) ... [2022-12-14 13:02:47,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:02:47" (1/1) ... [2022-12-14 13:02:47,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:02:47" (1/1) ... [2022-12-14 13:02:47,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:02:47" (1/1) ... [2022-12-14 13:02:47,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:02:47" (1/1) ... [2022-12-14 13:02:47,688 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:02:47" (1/1) ... [2022-12-14 13:02:47,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:02:47" (1/1) ... [2022-12-14 13:02:47,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:02:47,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:02:47,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:02:47,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:02:47,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:02:47" (1/1) ... [2022-12-14 13:02:47,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:02:47,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:02:47,726 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:02:47,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:02:47,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 13:02:47,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 13:02:47,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 13:02:47,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 13:02:47,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 13:02:47,758 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 13:02:47,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 13:02:47,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:02:47,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 13:02:47,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:02:47,759 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 13:02:47,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 13:02:47,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:02:47,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:02:47,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:02:47,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:02:47,898 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:02:47,899 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:02:49,602 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:02:49,905 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:02:49,905 INFO L300 CfgBuilder]: Removed 54 assume(true) statements. [2022-12-14 13:02:49,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:02:49 BoogieIcfgContainer [2022-12-14 13:02:49,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:02:49,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:02:49,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:02:49,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:02:49,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:02:46" (1/3) ... [2022-12-14 13:02:49,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f291e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:02:49, skipping insertion in model container [2022-12-14 13:02:49,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:02:47" (2/3) ... [2022-12-14 13:02:49,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f291e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:02:49, skipping insertion in model container [2022-12-14 13:02:49,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:02:49" (3/3) ... [2022-12-14 13:02:49,915 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test9-1.i [2022-12-14 13:02:49,929 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:02:49,929 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-14 13:02:49,983 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:02:49,988 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;@7a0b480c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:02:49,988 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-14 13:02:49,994 INFO L276 IsEmpty]: Start isEmpty. Operand has 1109 states, 595 states have (on average 1.969747899159664) internal successors, (1172), 1103 states have internal predecessors, (1172), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-12-14 13:02:49,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 13:02:49,999 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:02:49,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 13:02:50,000 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 13:02:50,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:02:50,003 INFO L85 PathProgramCache]: Analyzing trace with hash 140833213, now seen corresponding path program 1 times [2022-12-14 13:02:50,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:02:50,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120873044] [2022-12-14 13:02:50,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:02:50,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:02:50,098 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 13:02:50,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1490636669] [2022-12-14 13:02:50,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:02:50,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:02:50,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:02:50,100 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:02:50,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 13:02:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:02:50,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-14 13:02:50,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:02:50,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 13:02:50,281 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 11 treesize of output 7 [2022-12-14 13:02:50,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:02:50,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-12-14 13:02:50,339 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 13:02:50,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:02:50,340 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:02:50,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120873044] [2022-12-14 13:02:50,340 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 13:02:50,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490636669] [2022-12-14 13:02:50,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490636669] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:02:50,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:02:50,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:02:50,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934621629] [2022-12-14 13:02:50,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:02:50,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:02:50,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:02:50,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:02:50,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:02:50,382 INFO L87 Difference]: Start difference. First operand has 1109 states, 595 states have (on average 1.969747899159664) internal successors, (1172), 1103 states have internal predecessors, (1172), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:02:52,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:02:52,433 INFO L93 Difference]: Finished difference Result 3278 states and 6462 transitions. [2022-12-14 13:02:52,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:02:52,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 13:02:52,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:02:52,469 INFO L225 Difference]: With dead ends: 3278 [2022-12-14 13:02:52,469 INFO L226 Difference]: Without dead ends: 2167 [2022-12-14 13:02:52,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:02:52,480 INFO L413 NwaCegarLoop]: 2595 mSDtfsCounter, 1065 mSDsluCounter, 4173 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1565 SdHoareTripleChecker+Valid, 6768 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 13:02:52,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1565 Valid, 6768 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 13:02:52,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2167 states. [2022-12-14 13:02:52,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2167 to 1111. [2022-12-14 13:02:52,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 598 states have (on average 1.874581939799331) internal successors, (1121), 1105 states have internal predecessors, (1121), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-12-14 13:02:52,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 2127 transitions. [2022-12-14 13:02:52,840 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 2127 transitions. Word has length 4 [2022-12-14 13:02:52,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:02:52,840 INFO L495 AbstractCegarLoop]: Abstraction has 1111 states and 2127 transitions. [2022-12-14 13:02:52,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:02:52,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 2127 transitions. [2022-12-14 13:02:52,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 13:02:52,842 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:02:52,842 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] [2022-12-14 13:02:52,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:02:53,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-14 13:02:53,045 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 13:02:53,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:02:53,047 INFO L85 PathProgramCache]: Analyzing trace with hash -201976307, now seen corresponding path program 1 times [2022-12-14 13:02:53,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:02:53,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073357222] [2022-12-14 13:02:53,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:02:53,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:02:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:02:53,402 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 13:02:53,402 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:02:53,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073357222] [2022-12-14 13:02:53,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073357222] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:02:53,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:02:53,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:02:53,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779915983] [2022-12-14 13:02:53,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:02:53,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:02:53,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:02:53,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:02:53,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:02:53,404 INFO L87 Difference]: Start difference. First operand 1111 states and 2127 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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 13:02:55,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:02:55,895 INFO L93 Difference]: Finished difference Result 3200 states and 6229 transitions. [2022-12-14 13:02:55,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:02:55,899 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2022-12-14 13:02:55,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:02:55,913 INFO L225 Difference]: With dead ends: 3200 [2022-12-14 13:02:55,913 INFO L226 Difference]: Without dead ends: 2154 [2022-12-14 13:02:55,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:02:55,918 INFO L413 NwaCegarLoop]: 2598 mSDtfsCounter, 1051 mSDsluCounter, 4177 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 6775 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-14 13:02:55,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1551 Valid, 6775 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-14 13:02:55,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2154 states. [2022-12-14 13:02:56,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2154 to 1111. [2022-12-14 13:02:56,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 598 states have (on average 1.8729096989966556) internal successors, (1120), 1105 states have internal predecessors, (1120), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-12-14 13:02:56,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 2126 transitions. [2022-12-14 13:02:56,140 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 2126 transitions. Word has length 20 [2022-12-14 13:02:56,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:02:56,141 INFO L495 AbstractCegarLoop]: Abstraction has 1111 states and 2126 transitions. [2022-12-14 13:02:56,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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 13:02:56,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 2126 transitions. [2022-12-14 13:02:56,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 13:02:56,141 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:02:56,142 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 13:02:56,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:02:56,142 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 13:02:56,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:02:56,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1943706040, now seen corresponding path program 1 times [2022-12-14 13:02:56,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:02:56,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168382521] [2022-12-14 13:02:56,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:02:56,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:02:56,234 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 13:02:56,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1414493271] [2022-12-14 13:02:56,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:02:56,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:02:56,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:02:56,235 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:02:56,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 13:02:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:02:56,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 1578 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 13:02:56,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:02:56,717 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 13:02:56,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:02:56,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:02:56,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168382521] [2022-12-14 13:02:56,718 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 13:02:56,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414493271] [2022-12-14 13:02:56,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414493271] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:02:56,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:02:56,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:02:56,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696555913] [2022-12-14 13:02:56,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:02:56,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:02:56,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:02:56,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:02:56,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:02:56,720 INFO L87 Difference]: Start difference. First operand 1111 states and 2126 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:02:57,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:02:57,414 INFO L93 Difference]: Finished difference Result 3258 states and 6292 transitions. [2022-12-14 13:02:57,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:02:57,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-12-14 13:02:57,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:02:57,425 INFO L225 Difference]: With dead ends: 3258 [2022-12-14 13:02:57,425 INFO L226 Difference]: Without dead ends: 2152 [2022-12-14 13:02:57,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:02:57,429 INFO L413 NwaCegarLoop]: 2622 mSDtfsCounter, 1039 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 4711 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 13:02:57,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1541 Valid, 4711 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 13:02:57,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2152 states. [2022-12-14 13:02:57,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2152 to 2148. [2022-12-14 13:02:57,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2148 states, 1135 states have (on average 1.905726872246696) internal successors, (2163), 2142 states have internal predecessors, (2163), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2022-12-14 13:02:57,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2148 states to 2148 states and 4169 transitions. [2022-12-14 13:02:57,663 INFO L78 Accepts]: Start accepts. Automaton has 2148 states and 4169 transitions. Word has length 28 [2022-12-14 13:02:57,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:02:57,663 INFO L495 AbstractCegarLoop]: Abstraction has 2148 states and 4169 transitions. [2022-12-14 13:02:57,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:02:57,664 INFO L276 IsEmpty]: Start isEmpty. Operand 2148 states and 4169 transitions. [2022-12-14 13:02:57,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-14 13:02:57,664 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:02:57,664 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:02:57,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 13:02:57,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:02:57,865 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 13:02:57,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:02:57,865 INFO L85 PathProgramCache]: Analyzing trace with hash -490151430, now seen corresponding path program 1 times [2022-12-14 13:02:57,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:02:57,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979617156] [2022-12-14 13:02:57,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:02:57,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:02:57,912 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 13:02:57,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [992558623] [2022-12-14 13:02:57,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:02:57,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:02:57,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:02:57,914 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:02:57,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 13:02:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:02:59,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 13:02:59,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:02:59,435 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 13:02:59,435 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:02:59,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:02:59,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979617156] [2022-12-14 13:02:59,435 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 13:02:59,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992558623] [2022-12-14 13:02:59,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992558623] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:02:59,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:02:59,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:02:59,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073490036] [2022-12-14 13:02:59,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:02:59,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:02:59,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:02:59,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:02:59,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:02:59,437 INFO L87 Difference]: Start difference. First operand 2148 states and 4169 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 13:03:01,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 13:03:01,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:03:01,718 INFO L93 Difference]: Finished difference Result 4280 states and 8324 transitions. [2022-12-14 13:03:01,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:03:01,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2022-12-14 13:03:01,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:03:01,735 INFO L225 Difference]: With dead ends: 4280 [2022-12-14 13:03:01,735 INFO L226 Difference]: Without dead ends: 2150 [2022-12-14 13:03:01,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 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 13:03:01,740 INFO L413 NwaCegarLoop]: 2107 mSDtfsCounter, 1 mSDsluCounter, 4210 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6317 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:03:01,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6317 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 13:03:01,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2022-12-14 13:03:01,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 2150. [2022-12-14 13:03:02,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 1136 states have (on average 1.9058098591549295) internal successors, (2165), 2144 states have internal predecessors, (2165), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 3 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2022-12-14 13:03:02,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 4172 transitions. [2022-12-14 13:03:02,012 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 4172 transitions. Word has length 41 [2022-12-14 13:03:02,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:03:02,012 INFO L495 AbstractCegarLoop]: Abstraction has 2150 states and 4172 transitions. [2022-12-14 13:03:02,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 13:03:02,012 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 4172 transitions. [2022-12-14 13:03:02,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-14 13:03:02,013 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:03:02,013 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:03:02,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 13:03:02,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:03:02,215 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 13:03:02,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:03:02,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1375446570, now seen corresponding path program 1 times [2022-12-14 13:03:02,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:03:02,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428375540] [2022-12-14 13:03:02,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:03:02,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:03:02,293 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 13:03:02,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1848472579] [2022-12-14 13:03:02,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:03:02,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:03:02,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:03:02,294 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:03:02,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 13:03:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:03:26,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 13:03:26,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:03:26,274 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 13:03:26,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:03:26,332 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 13:03:26,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:03:26,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428375540] [2022-12-14 13:03:26,332 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 13:03:26,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848472579] [2022-12-14 13:03:26,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848472579] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:03:26,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [785889411] [2022-12-14 13:03:26,348 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2022-12-14 13:03:26,348 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:03:26,351 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:03:26,355 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:03:26,356 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:03:26,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 13:03:26,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,438 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 13:03:26,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 13:03:26,445 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 13:03:26,451 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 13:03:26,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,469 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 13:03:26,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 13:03:26,491 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 13:03:26,496 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 13:03:26,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,521 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 13:03:26,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-12-14 13:03:26,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,556 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 13:03:26,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-12-14 13:03:26,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 38 [2022-12-14 13:03:26,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 64 [2022-12-14 13:03:26,616 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 13:03:26,625 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 13:03:26,911 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 13:03:26,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896995 treesize of output 5376286 [2022-12-14 13:03:26,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:26,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 8458577 treesize of output 4759834 [2022-12-14 13:03:27,024 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 13:03:27,057 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 13:03:27,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 13:03:27,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 13:03:27,175 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 13:03:27,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 13:03:27,277 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 13:03:27,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,331 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 13:03:27,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-12-14 13:03:27,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,397 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 13:03:27,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-12-14 13:03:27,420 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 13:03:27,545 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 13:03:27,549 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 13:03:27,553 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 13:03:27,573 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 13:03:27,581 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 13:03:27,588 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 13:03:27,607 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 13:03:27,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 13:03:27,617 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 13:03:27,672 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 13:03:27,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-12-14 13:03:27,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 13:03:27,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:03:27,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-12-14 13:03:27,948 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 13:03:27,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 13:03:28,785 INFO L217 Elim1Store]: Index analysis took 608 ms [2022-12-14 13:03:36,462 WARN L233 SmtUtils]: Spent 7.67s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 13:03:36,462 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-12-14 13:03:36,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 9519777 treesize of output 9519796 [2022-12-14 13:03:37,548 INFO L217 Elim1Store]: Index analysis took 905 ms [2022-12-14 13:03:40,162 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-12-14 13:03:40,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 9519772 treesize of output 9519776 [2022-12-14 13:03:48,146 INFO L217 Elim1Store]: Index analysis took 285 ms [2022-12-14 13:04:12,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 13:04:12,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:04:12,966 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 75409 column 7: canceled at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:124) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:119) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 75409 column 7: canceled at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:54) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:736) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:389) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:648) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:198) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:265) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) ... 59 more [2022-12-14 13:04:12,978 INFO L158 Benchmark]: Toolchain (without parser) took 86083.35ms. Allocated memory was 132.1MB in the beginning and 4.3GB in the end (delta: 4.2GB). Free memory was 92.4MB in the beginning and 1.7GB in the end (delta: -1.7GB). Peak memory consumption was 3.7GB. Max. memory is 16.1GB. [2022-12-14 13:04:12,979 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 132.1MB. Free memory was 75.4MB in the beginning and 75.3MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:04:12,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 642.97ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 92.4MB in the beginning and 110.3MB in the end (delta: -17.9MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. [2022-12-14 13:04:12,981 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.25ms. Allocated memory is still 159.4MB. Free memory was 110.3MB in the beginning and 96.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 13:04:12,982 INFO L158 Benchmark]: Boogie Preprocessor took 75.53ms. Allocated memory is still 159.4MB. Free memory was 96.3MB in the beginning and 83.0MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 13:04:12,984 INFO L158 Benchmark]: RCFGBuilder took 2207.01ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 83.0MB in the beginning and 97.4MB in the end (delta: -14.3MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. [2022-12-14 13:04:12,985 INFO L158 Benchmark]: TraceAbstraction took 83065.37ms. Allocated memory was 192.9MB in the beginning and 4.3GB in the end (delta: 4.1GB). Free memory was 96.3MB in the beginning and 1.7GB in the end (delta: -1.7GB). Peak memory consumption was 3.7GB. Max. memory is 16.1GB. [2022-12-14 13:04:12,992 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 132.1MB. Free memory was 75.4MB in the beginning and 75.3MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 642.97ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 92.4MB in the beginning and 110.3MB in the end (delta: -17.9MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.25ms. Allocated memory is still 159.4MB. Free memory was 110.3MB in the beginning and 96.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.53ms. Allocated memory is still 159.4MB. Free memory was 96.3MB in the beginning and 83.0MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 2207.01ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 83.0MB in the beginning and 97.4MB in the end (delta: -14.3MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. * TraceAbstraction took 83065.37ms. Allocated memory was 192.9MB in the beginning and 4.3GB in the end (delta: 4.1GB). Free memory was 96.3MB in the beginning and 1.7GB in the end (delta: -1.7GB). Peak memory consumption was 3.7GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 75409 column 7: canceled de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 75409 column 7: canceled: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-14 13:04:13,206 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-12-14 13:04:13,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/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_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/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 f4a8b24485e53fece96b44fdc12e6f161e1bbffda2cd597a930f4925e148dc01 --- 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 13:04:14,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:04:14,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:04:14,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:04:14,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:04:14,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:04:14,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:04:14,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:04:14,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:04:14,745 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:04:14,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:04:14,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:04:14,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:04:14,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:04:14,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:04:14,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:04:14,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:04:14,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:04:14,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:04:14,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:04:14,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:04:14,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:04:14,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:04:14,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:04:14,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:04:14,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:04:14,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:04:14,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:04:14,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:04:14,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:04:14,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:04:14,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:04:14,761 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:04:14,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:04:14,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:04:14,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:04:14,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:04:14,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:04:14,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:04:14,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:04:14,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:04:14,775 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2022-12-14 13:04:14,791 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:04:14,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:04:14,791 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:04:14,791 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:04:14,792 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:04:14,792 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:04:14,792 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:04:14,792 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:04:14,792 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:04:14,793 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:04:14,793 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:04:14,793 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:04:14,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:04:14,793 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:04:14,794 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:04:14,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:04:14,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:04:14,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:04:14,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:04:14,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:04:14,794 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 13:04:14,794 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 13:04:14,795 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 13:04:14,795 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 13:04:14,795 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:04:14,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:04:14,795 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:04:14,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:04:14,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:04:14,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 13:04:14,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:04:14,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:04:14,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:04:14,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:04:14,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:04:14,796 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 13:04:14,796 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 13:04:14,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:04:14,797 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:04:14,797 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 13:04:14,797 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4a8b24485e53fece96b44fdc12e6f161e1bbffda2cd597a930f4925e148dc01 [2022-12-14 13:04:15,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:04:15,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:04:15,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:04:15,025 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:04:15,025 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:04:15,026 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i [2022-12-14 13:04:17,536 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:04:17,834 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:04:17,834 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i [2022-12-14 13:04:17,854 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/data/e6f5dcffd/b50b3ca1b7854e898ea9d639b076e03c/FLAG74a844fa4 [2022-12-14 13:04:18,093 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/data/e6f5dcffd/b50b3ca1b7854e898ea9d639b076e03c [2022-12-14 13:04:18,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:04:18,096 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:04:18,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:04:18,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:04:18,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:04:18,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:04:18" (1/1) ... [2022-12-14 13:04:18,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75d379e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:18, skipping insertion in model container [2022-12-14 13:04:18,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:04:18" (1/1) ... [2022-12-14 13:04:18,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:04:18,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:04:18,558 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_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i[33021,33034] [2022-12-14 13:04:18,762 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:04:18,765 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_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i[84583,84596] [2022-12-14 13:04:18,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:04:18,783 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-14 13:04:18,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:04:18,822 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_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i[33021,33034] [2022-12-14 13:04:18,916 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:04:18,918 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_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i[84583,84596] [2022-12-14 13:04:18,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:04:18,924 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:04:18,949 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_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i[33021,33034] [2022-12-14 13:04:19,018 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:04:19,020 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_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i[84583,84596] [2022-12-14 13:04:19,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:04:19,051 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:04:19,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:19 WrapperNode [2022-12-14 13:04:19,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:04:19,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:04:19,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:04:19,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:04:19,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:19" (1/1) ... [2022-12-14 13:04:19,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:19" (1/1) ... [2022-12-14 13:04:19,164 INFO L138 Inliner]: procedures = 180, calls = 730, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2868 [2022-12-14 13:04:19,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:04:19,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:04:19,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:04:19,166 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:04:19,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:19" (1/1) ... [2022-12-14 13:04:19,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:19" (1/1) ... [2022-12-14 13:04:19,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:19" (1/1) ... [2022-12-14 13:04:19,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:19" (1/1) ... [2022-12-14 13:04:19,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:19" (1/1) ... [2022-12-14 13:04:19,244 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:19" (1/1) ... [2022-12-14 13:04:19,251 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:19" (1/1) ... [2022-12-14 13:04:19,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:19" (1/1) ... [2022-12-14 13:04:19,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:04:19,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:04:19,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:04:19,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:04:19,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:19" (1/1) ... [2022-12-14 13:04:19,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:04:19,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:04:19,308 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:04:19,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:04:19,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-12-14 13:04:19,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 13:04:19,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 13:04:19,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 13:04:19,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 13:04:19,343 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 13:04:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 13:04:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:04:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 13:04:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:04:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 13:04:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 13:04:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:04:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 13:04:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 13:04:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:04:19,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:04:19,493 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:04:19,495 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:04:26,941 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:04:26,953 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:04:26,953 INFO L300 CfgBuilder]: Removed 54 assume(true) statements. [2022-12-14 13:04:26,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:04:26 BoogieIcfgContainer [2022-12-14 13:04:26,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:04:26,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:04:26,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:04:26,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:04:26,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:04:18" (1/3) ... [2022-12-14 13:04:26,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148d7fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:04:26, skipping insertion in model container [2022-12-14 13:04:26,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:19" (2/3) ... [2022-12-14 13:04:26,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148d7fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:04:26, skipping insertion in model container [2022-12-14 13:04:26,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:04:26" (3/3) ... [2022-12-14 13:04:26,962 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test9-1.i [2022-12-14 13:04:26,974 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:04:26,975 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-14 13:04:27,040 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:04:27,044 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;@4189407d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:04:27,044 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-14 13:04:27,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 1177 states, 663 states have (on average 1.9245852187028658) internal successors, (1276), 1171 states have internal predecessors, (1276), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-12-14 13:04:27,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 13:04:27,054 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:27,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:27,054 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 13:04:27,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:27,058 INFO L85 PathProgramCache]: Analyzing trace with hash 552713999, now seen corresponding path program 1 times [2022-12-14 13:04:27,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:04:27,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973660584] [2022-12-14 13:04:27,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:27,067 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:04:27,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:04:27,068 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:04:27,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 13:04:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:27,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 13:04:27,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:04:27,228 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 13:04:27,228 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:04:27,229 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:04:27,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973660584] [2022-12-14 13:04:27,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [973660584] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:04:27,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:04:27,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:04:27,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665203117] [2022-12-14 13:04:27,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:04:27,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:04:27,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:04:27,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:04:27,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:04:27,265 INFO L87 Difference]: Start difference. First operand has 1177 states, 663 states have (on average 1.9245852187028658) internal successors, (1276), 1171 states have internal predecessors, (1276), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 13:04:27,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:04:27,405 INFO L93 Difference]: Finished difference Result 2349 states and 5062 transitions. [2022-12-14 13:04:27,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:04:27,407 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-12-14 13:04:27,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:04:27,430 INFO L225 Difference]: With dead ends: 2349 [2022-12-14 13:04:27,430 INFO L226 Difference]: Without dead ends: 1170 [2022-12-14 13:04:27,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 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 13:04:27,440 INFO L413 NwaCegarLoop]: 2219 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2219 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:04:27,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2219 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:04:27,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2022-12-14 13:04:27,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 1170. [2022-12-14 13:04:27,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1170 states, 660 states have (on average 1.8318181818181818) internal successors, (1209), 1164 states have internal predecessors, (1209), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-12-14 13:04:27,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 2215 transitions. [2022-12-14 13:04:27,736 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 2215 transitions. Word has length 7 [2022-12-14 13:04:27,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:04:27,736 INFO L495 AbstractCegarLoop]: Abstraction has 1170 states and 2215 transitions. [2022-12-14 13:04:27,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 13:04:27,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 2215 transitions. [2022-12-14 13:04:27,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 13:04:27,737 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:27,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:27,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:04:27,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:04:27,938 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 13:04:27,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:27,939 INFO L85 PathProgramCache]: Analyzing trace with hash 552715921, now seen corresponding path program 1 times [2022-12-14 13:04:27,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:04:27,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1176316646] [2022-12-14 13:04:27,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:27,939 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:04:27,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:04:27,940 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:04:27,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 13:04:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:28,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 13:04:28,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:04:28,202 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 27 treesize of output 36 [2022-12-14 13:04:28,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-12-14 13:04:28,308 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-14 13:04:28,309 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 13 treesize of output 13 [2022-12-14 13:04:28,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:04:28,398 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 13:04:28,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 32 [2022-12-14 13:04:28,440 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 13:04:28,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:04:28,440 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:04:28,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1176316646] [2022-12-14 13:04:28,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1176316646] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:04:28,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:04:28,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:04:28,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71091118] [2022-12-14 13:04:28,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:04:28,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 13:04:28,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:04:28,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 13:04:28,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 13:04:28,444 INFO L87 Difference]: Start difference. First operand 1170 states and 2215 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 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 13:04:33,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 13:04:35,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 13:04:44,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 13:04:46,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 13:04:47,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:04:47,071 INFO L93 Difference]: Finished difference Result 2285 states and 4364 transitions. [2022-12-14 13:04:47,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:04:47,072 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 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 7 [2022-12-14 13:04:47,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:04:47,080 INFO L225 Difference]: With dead ends: 2285 [2022-12-14 13:04:47,081 INFO L226 Difference]: Without dead ends: 2283 [2022-12-14 13:04:47,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-14 13:04:47,082 INFO L413 NwaCegarLoop]: 2667 mSDtfsCounter, 1183 mSDsluCounter, 7038 mSDsCounter, 0 mSdLazyCounter, 2299 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1683 SdHoareTripleChecker+Valid, 9705 SdHoareTripleChecker+Invalid, 2316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2299 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2022-12-14 13:04:47,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1683 Valid, 9705 Invalid, 2316 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 2299 Invalid, 2 Unknown, 0 Unchecked, 18.3s Time] [2022-12-14 13:04:47,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2283 states. [2022-12-14 13:04:47,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2283 to 1176. [2022-12-14 13:04:47,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1176 states, 666 states have (on average 1.8258258258258258) internal successors, (1216), 1170 states have internal predecessors, (1216), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-12-14 13:04:47,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 2222 transitions. [2022-12-14 13:04:47,334 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 2222 transitions. Word has length 7 [2022-12-14 13:04:47,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:04:47,334 INFO L495 AbstractCegarLoop]: Abstraction has 1176 states and 2222 transitions. [2022-12-14 13:04:47,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 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 13:04:47,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 2222 transitions. [2022-12-14 13:04:47,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 13:04:47,336 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:47,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:47,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 13:04:47,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:04:47,537 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 13:04:47,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:47,537 INFO L85 PathProgramCache]: Analyzing trace with hash -637019380, now seen corresponding path program 1 times [2022-12-14 13:04:47,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:04:47,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [814694215] [2022-12-14 13:04:47,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:47,538 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:04:47,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:04:47,539 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:04:47,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-14 13:04:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:47,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:04:47,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:04:47,688 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 13:04:47,688 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:04:47,688 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:04:47,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [814694215] [2022-12-14 13:04:47,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [814694215] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:04:47,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:04:47,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:04:47,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375305465] [2022-12-14 13:04:47,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:04:47,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:04:47,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:04:47,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:04:47,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:04:47,691 INFO L87 Difference]: Start difference. First operand 1176 states and 2222 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 13:04:47,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:04:47,834 INFO L93 Difference]: Finished difference Result 2255 states and 4322 transitions. [2022-12-14 13:04:47,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:04:47,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 45 [2022-12-14 13:04:47,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:04:47,842 INFO L225 Difference]: With dead ends: 2255 [2022-12-14 13:04:47,842 INFO L226 Difference]: Without dead ends: 1185 [2022-12-14 13:04:47,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 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 13:04:47,848 INFO L413 NwaCegarLoop]: 2189 mSDtfsCounter, 1083 mSDsluCounter, 2813 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 5002 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:04:47,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1583 Valid, 5002 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:04:47,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2022-12-14 13:04:48,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1179. [2022-12-14 13:04:48,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1179 states, 669 states have (on average 1.8101644245142003) internal successors, (1211), 1173 states have internal predecessors, (1211), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-12-14 13:04:48,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 2217 transitions. [2022-12-14 13:04:48,097 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 2217 transitions. Word has length 45 [2022-12-14 13:04:48,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:04:48,097 INFO L495 AbstractCegarLoop]: Abstraction has 1179 states and 2217 transitions. [2022-12-14 13:04:48,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 13:04:48,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 2217 transitions. [2022-12-14 13:04:48,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 13:04:48,099 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:48,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:48,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-12-14 13:04:48,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:04:48,300 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 13:04:48,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:48,300 INFO L85 PathProgramCache]: Analyzing trace with hash 86428058, now seen corresponding path program 1 times [2022-12-14 13:04:48,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:04:48,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [565768250] [2022-12-14 13:04:48,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:48,301 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:04:48,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:04:48,302 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:04:48,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-14 13:04:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:48,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 13:04:48,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:04:48,499 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 13:04:48,499 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:04:48,499 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:04:48,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [565768250] [2022-12-14 13:04:48,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [565768250] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:04:48,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:04:48,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:04:48,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783827563] [2022-12-14 13:04:48,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:04:48,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:04:48,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:04:48,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:04:48,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:04:48,502 INFO L87 Difference]: Start difference. First operand 1179 states and 2217 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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 13:04:49,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:04:49,698 INFO L93 Difference]: Finished difference Result 2251 states and 4299 transitions. [2022-12-14 13:04:49,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:04:49,699 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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 45 [2022-12-14 13:04:49,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:04:49,709 INFO L225 Difference]: With dead ends: 2251 [2022-12-14 13:04:49,710 INFO L226 Difference]: Without dead ends: 1178 [2022-12-14 13:04:49,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:04:49,715 INFO L413 NwaCegarLoop]: 2189 mSDtfsCounter, 1048 mSDsluCounter, 4491 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1548 SdHoareTripleChecker+Valid, 6680 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:04:49,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1548 Valid, 6680 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 13:04:49,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2022-12-14 13:04:49,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1173. [2022-12-14 13:04:49,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 663 states have (on average 1.8114630467571644) internal successors, (1201), 1167 states have internal predecessors, (1201), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-12-14 13:04:49,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 2207 transitions. [2022-12-14 13:04:49,846 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 2207 transitions. Word has length 45 [2022-12-14 13:04:49,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:04:49,846 INFO L495 AbstractCegarLoop]: Abstraction has 1173 states and 2207 transitions. [2022-12-14 13:04:49,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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 13:04:49,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 2207 transitions. [2022-12-14 13:04:49,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 13:04:49,848 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:49,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:49,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-14 13:04:50,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:04:50,049 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 13:04:50,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:50,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1953097750, now seen corresponding path program 1 times [2022-12-14 13:04:50,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:04:50,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892410743] [2022-12-14 13:04:50,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:50,050 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:04:50,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:04:50,051 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:04:50,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-14 13:04:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:50,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:04:50,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:04:50,198 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 13:04:50,198 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:04:50,199 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:04:50,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892410743] [2022-12-14 13:04:50,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [892410743] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:04:50,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:04:50,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:04:50,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701345913] [2022-12-14 13:04:50,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:04:50,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:04:50,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:04:50,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:04:50,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:04:50,201 INFO L87 Difference]: Start difference. First operand 1173 states and 2207 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 13:04:50,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:04:50,291 INFO L93 Difference]: Finished difference Result 2245 states and 4286 transitions. [2022-12-14 13:04:50,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:04:50,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2022-12-14 13:04:50,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:04:50,296 INFO L225 Difference]: With dead ends: 2245 [2022-12-14 13:04:50,297 INFO L226 Difference]: Without dead ends: 1173 [2022-12-14 13:04:50,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 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 13:04:50,300 INFO L413 NwaCegarLoop]: 2199 mSDtfsCounter, 8 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4380 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:04:50,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4380 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:04:50,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2022-12-14 13:04:50,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1173. [2022-12-14 13:04:50,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 663 states have (on average 1.8054298642533937) internal successors, (1197), 1167 states have internal predecessors, (1197), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-12-14 13:04:50,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 2203 transitions. [2022-12-14 13:04:50,423 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 2203 transitions. Word has length 45 [2022-12-14 13:04:50,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:04:50,423 INFO L495 AbstractCegarLoop]: Abstraction has 1173 states and 2203 transitions. [2022-12-14 13:04:50,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 13:04:50,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 2203 transitions. [2022-12-14 13:04:50,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-14 13:04:50,425 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:50,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:50,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-14 13:04:50,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:04:50,626 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 13:04:50,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:50,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1628462743, now seen corresponding path program 1 times [2022-12-14 13:04:50,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:04:50,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531968603] [2022-12-14 13:04:50,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:50,628 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:04:50,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:04:50,629 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:04:50,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-14 13:04:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:50,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:04:50,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:04:50,994 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 13:04:50,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:04:50,994 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:04:50,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [531968603] [2022-12-14 13:04:50,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [531968603] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:04:50,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:04:50,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:04:50,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584844590] [2022-12-14 13:04:50,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:04:50,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:04:50,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:04:50,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:04:50,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:04:50,996 INFO L87 Difference]: Start difference. First operand 1173 states and 2203 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:04:51,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:04:51,500 INFO L93 Difference]: Finished difference Result 2410 states and 4482 transitions. [2022-12-14 13:04:51,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:04:51,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-12-14 13:04:51,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:04:51,505 INFO L225 Difference]: With dead ends: 2410 [2022-12-14 13:04:51,506 INFO L226 Difference]: Without dead ends: 1209 [2022-12-14 13:04:51,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:04:51,508 INFO L413 NwaCegarLoop]: 2195 mSDtfsCounter, 59 mSDsluCounter, 2175 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 4370 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 13:04:51,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 4370 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 13:04:51,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2022-12-14 13:04:51,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1209. [2022-12-14 13:04:51,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 699 states have (on average 1.7796852646638055) internal successors, (1244), 1203 states have internal predecessors, (1244), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-12-14 13:04:51,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 2250 transitions. [2022-12-14 13:04:51,653 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 2250 transitions. Word has length 57 [2022-12-14 13:04:51,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:04:51,653 INFO L495 AbstractCegarLoop]: Abstraction has 1209 states and 2250 transitions. [2022-12-14 13:04:51,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:04:51,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 2250 transitions. [2022-12-14 13:04:51,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 13:04:51,655 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:51,655 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:04:51,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-12-14 13:04:51,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:04:51,857 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 13:04:51,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:51,858 INFO L85 PathProgramCache]: Analyzing trace with hash -452597190, now seen corresponding path program 1 times [2022-12-14 13:04:51,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:04:51,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261232716] [2022-12-14 13:04:51,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:51,861 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:04:51,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:04:51,864 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:04:51,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-12-14 13:04:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:52,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:04:52,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:04:52,383 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 13:04:52,383 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:04:52,383 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:04:52,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261232716] [2022-12-14 13:04:52,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261232716] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:04:52,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:04:52,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:04:52,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509231783] [2022-12-14 13:04:52,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:04:52,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:04:52,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:04:52,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:04:52,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:04:52,386 INFO L87 Difference]: Start difference. First operand 1209 states and 2250 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 13:04:52,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:04:52,512 INFO L93 Difference]: Finished difference Result 2415 states and 4503 transitions. [2022-12-14 13:04:52,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:04:52,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 73 [2022-12-14 13:04:52,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:04:52,516 INFO L225 Difference]: With dead ends: 2415 [2022-12-14 13:04:52,516 INFO L226 Difference]: Without dead ends: 1217 [2022-12-14 13:04:52,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 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 13:04:52,519 INFO L413 NwaCegarLoop]: 2173 mSDtfsCounter, 1182 mSDsluCounter, 2684 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 4857 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:04:52,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1685 Valid, 4857 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:04:52,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2022-12-14 13:04:52,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1215. [2022-12-14 13:04:52,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 705 states have (on average 1.750354609929078) internal successors, (1234), 1209 states have internal predecessors, (1234), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-12-14 13:04:52,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 2240 transitions. [2022-12-14 13:04:52,670 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 2240 transitions. Word has length 73 [2022-12-14 13:04:52,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:04:52,671 INFO L495 AbstractCegarLoop]: Abstraction has 1215 states and 2240 transitions. [2022-12-14 13:04:52,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 13:04:52,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 2240 transitions. [2022-12-14 13:04:52,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 13:04:52,672 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:52,672 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:52,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-14 13:04:52,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:04:52,873 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 13:04:52,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:52,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1322556696, now seen corresponding path program 1 times [2022-12-14 13:04:52,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:04:52,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299119355] [2022-12-14 13:04:52,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:52,874 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:04:52,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:04:52,875 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:04:52,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-12-14 13:04:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:53,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 13:04:53,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:04:53,340 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 13:04:53,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:04:53,340 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:04:53,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299119355] [2022-12-14 13:04:53,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1299119355] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:04:53,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:04:53,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:04:53,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578590818] [2022-12-14 13:04:53,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:04:53,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:04:53,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:04:53,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:04:53,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:04:53,342 INFO L87 Difference]: Start difference. First operand 1215 states and 2240 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 13:04:53,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:04:53,447 INFO L93 Difference]: Finished difference Result 2384 states and 4430 transitions. [2022-12-14 13:04:53,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:04:53,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 73 [2022-12-14 13:04:53,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:04:53,454 INFO L225 Difference]: With dead ends: 2384 [2022-12-14 13:04:53,454 INFO L226 Difference]: Without dead ends: 1203 [2022-12-14 13:04:53,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:04:53,457 INFO L413 NwaCegarLoop]: 2174 mSDtfsCounter, 1148 mSDsluCounter, 2684 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1651 SdHoareTripleChecker+Valid, 4858 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:04:53,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1651 Valid, 4858 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:04:53,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2022-12-14 13:04:53,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1203. [2022-12-14 13:04:53,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1203 states, 693 states have (on average 1.7518037518037517) internal successors, (1214), 1197 states have internal predecessors, (1214), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-12-14 13:04:53,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 2220 transitions. [2022-12-14 13:04:53,626 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 2220 transitions. Word has length 73 [2022-12-14 13:04:53,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:04:53,626 INFO L495 AbstractCegarLoop]: Abstraction has 1203 states and 2220 transitions. [2022-12-14 13:04:53,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 13:04:53,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 2220 transitions. [2022-12-14 13:04:53,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 13:04:53,627 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:53,627 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:53,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-12-14 13:04:53,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:04:53,829 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 13:04:53,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:53,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1850491950, now seen corresponding path program 1 times [2022-12-14 13:04:53,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:04:53,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881074708] [2022-12-14 13:04:53,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:53,832 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:04:53,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:04:53,835 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:04:53,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-14 13:04:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:54,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:04:54,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:04:54,366 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:04:54,366 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:04:54,366 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:04:54,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881074708] [2022-12-14 13:04:54,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881074708] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:04:54,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:04:54,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:04:54,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254761040] [2022-12-14 13:04:54,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:04:54,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:04:54,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:04:54,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:04:54,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:04:54,368 INFO L87 Difference]: Start difference. First operand 1203 states and 2220 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 13:04:54,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:04:54,463 INFO L93 Difference]: Finished difference Result 2368 states and 4405 transitions. [2022-12-14 13:04:54,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:04:54,464 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 73 [2022-12-14 13:04:54,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:04:54,470 INFO L225 Difference]: With dead ends: 2368 [2022-12-14 13:04:54,470 INFO L226 Difference]: Without dead ends: 1206 [2022-12-14 13:04:54,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 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 13:04:54,473 INFO L413 NwaCegarLoop]: 2178 mSDtfsCounter, 2 mSDsluCounter, 4352 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6530 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:04:54,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6530 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:04:54,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2022-12-14 13:04:54,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1206. [2022-12-14 13:04:54,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 695 states have (on average 1.7510791366906475) internal successors, (1217), 1200 states have internal predecessors, (1217), 503 states have call successors, (503), 2 states have call predecessors, (503), 3 states have return successors, (504), 4 states have call predecessors, (504), 503 states have call successors, (504) [2022-12-14 13:04:54,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 2224 transitions. [2022-12-14 13:04:54,614 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 2224 transitions. Word has length 73 [2022-12-14 13:04:54,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:04:54,614 INFO L495 AbstractCegarLoop]: Abstraction has 1206 states and 2224 transitions. [2022-12-14 13:04:54,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 13:04:54,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 2224 transitions. [2022-12-14 13:04:54,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 13:04:54,616 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:54,616 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:54,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-12-14 13:04:54,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:04:54,816 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 13:04:54,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:54,817 INFO L85 PathProgramCache]: Analyzing trace with hash 852299724, now seen corresponding path program 1 times [2022-12-14 13:04:54,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:04:54,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286138170] [2022-12-14 13:04:54,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:54,818 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:04:54,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:04:54,818 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:04:54,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-12-14 13:04:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:55,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 13:04:55,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:04:55,330 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 13:04:55,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:04:55,406 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 13:04:55,407 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:04:55,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [286138170] [2022-12-14 13:04:55,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [286138170] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:04:55,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [410998687] [2022-12-14 13:04:55,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:55,407 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 13:04:55,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 13:04:55,408 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 13:04:55,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2022-12-14 13:04:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:56,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 13:04:56,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:04:56,412 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 13:04:56,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:04:56,463 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 13:04:56,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [410998687] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:04:56,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297609058] [2022-12-14 13:04:56,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:56,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:04:56,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:04:56,465 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:04:56,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-14 13:04:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:56,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 13:04:56,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:04:56,863 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 13:04:56,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:04:56,953 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 13:04:56,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297609058] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:04:56,953 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 13:04:56,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2022-12-14 13:04:56,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3316004] [2022-12-14 13:04:56,954 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 13:04:56,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 13:04:56,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:04:56,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 13:04:56,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-12-14 13:04:56,955 INFO L87 Difference]: Start difference. First operand 1206 states and 2224 transitions. Second operand has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 11 states have internal predecessors, (85), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 13:04:57,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:04:57,336 INFO L93 Difference]: Finished difference Result 2386 states and 4433 transitions. [2022-12-14 13:04:57,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 13:04:57,337 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 11 states have internal predecessors, (85), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 75 [2022-12-14 13:04:57,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:04:57,342 INFO L225 Difference]: With dead ends: 2386 [2022-12-14 13:04:57,342 INFO L226 Difference]: Without dead ends: 1221 [2022-12-14 13:04:57,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=306, Unknown=0, NotChecked=0, Total=462 [2022-12-14 13:04:57,344 INFO L413 NwaCegarLoop]: 2178 mSDtfsCounter, 19 mSDsluCounter, 13040 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 15218 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:04:57,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 15218 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:04:57,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2022-12-14 13:04:57,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1217. [2022-12-14 13:04:57,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1217 states, 705 states have (on average 1.75177304964539) internal successors, (1235), 1210 states have internal predecessors, (1235), 503 states have call successors, (503), 3 states have call predecessors, (503), 4 states have return successors, (504), 4 states have call predecessors, (504), 503 states have call successors, (504) [2022-12-14 13:04:57,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 2242 transitions. [2022-12-14 13:04:57,484 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 2242 transitions. Word has length 75 [2022-12-14 13:04:57,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:04:57,485 INFO L495 AbstractCegarLoop]: Abstraction has 1217 states and 2242 transitions. [2022-12-14 13:04:57,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 11 states have internal predecessors, (85), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 13:04:57,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 2242 transitions. [2022-12-14 13:04:57,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-14 13:04:57,485 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:57,485 INFO L195 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:57,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-14 13:04:57,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-12-14 13:04:57,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2022-12-14 13:04:58,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 13:04:58,087 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 13:04:58,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:58,088 INFO L85 PathProgramCache]: Analyzing trace with hash 933733294, now seen corresponding path program 2 times [2022-12-14 13:04:58,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:04:58,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449359131] [2022-12-14 13:04:58,091 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 13:04:58,091 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:04:58,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:04:58,092 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:04:58,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-12-14 13:04:58,919 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 13:04:58,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 13:04:58,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 13:04:58,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:04:59,006 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 13:04:59,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:04:59,177 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 13:04:59,178 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:04:59,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449359131] [2022-12-14 13:04:59,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1449359131] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:04:59,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2108288701] [2022-12-14 13:04:59,178 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 13:04:59,178 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 13:04:59,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 13:04:59,179 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 13:04:59,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2022-12-14 13:05:03,619 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 13:05:03,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 13:05:03,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 13:05:03,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:05:03,695 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 13:05:03,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:05:03,792 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 13:05:03,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2108288701] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:05:03,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571580337] [2022-12-14 13:05:03,792 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 13:05:03,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:05:03,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:05:03,793 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:05:03,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-14 13:12:16,143 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 13:12:16,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 13:12:16,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 13:12:16,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:12:16,284 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 13:12:16,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:12:16,563 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 13:12:16,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571580337] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:12:16,563 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 13:12:16,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 22 [2022-12-14 13:12:16,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100524281] [2022-12-14 13:12:16,564 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 13:12:16,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-14 13:12:16,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:12:16,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-14 13:12:16,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2022-12-14 13:12:16,566 INFO L87 Difference]: Start difference. First operand 1217 states and 2242 transitions. Second operand has 22 states, 22 states have (on average 4.409090909090909) internal successors, (97), 22 states have internal predecessors, (97), 2 states have call successors, (4), 2 states have call predecessors, (4), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 13:12:18,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:12:18,144 INFO L93 Difference]: Finished difference Result 2419 states and 4483 transitions. [2022-12-14 13:12:18,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 13:12:18,144 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.409090909090909) internal successors, (97), 22 states have internal predecessors, (97), 2 states have call successors, (4), 2 states have call predecessors, (4), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 81 [2022-12-14 13:12:18,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:12:18,152 INFO L225 Difference]: With dead ends: 2419 [2022-12-14 13:12:18,152 INFO L226 Difference]: Without dead ends: 1237 [2022-12-14 13:12:18,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=678, Invalid=1674, Unknown=0, NotChecked=0, Total=2352 [2022-12-14 13:12:18,155 INFO L413 NwaCegarLoop]: 2181 mSDtfsCounter, 43 mSDsluCounter, 28262 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 30443 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 13:12:18,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 30443 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 13:12:18,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2022-12-14 13:12:18,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 1229. [2022-12-14 13:12:18,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 717 states have (on average 1.7461645746164574) internal successors, (1252), 1222 states have internal predecessors, (1252), 503 states have call successors, (503), 3 states have call predecessors, (503), 4 states have return successors, (504), 4 states have call predecessors, (504), 503 states have call successors, (504) [2022-12-14 13:12:18,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 2259 transitions. [2022-12-14 13:12:18,288 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 2259 transitions. Word has length 81 [2022-12-14 13:12:18,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:12:18,288 INFO L495 AbstractCegarLoop]: Abstraction has 1229 states and 2259 transitions. [2022-12-14 13:12:18,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.409090909090909) internal successors, (97), 22 states have internal predecessors, (97), 2 states have call successors, (4), 2 states have call predecessors, (4), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 13:12:18,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 2259 transitions. [2022-12-14 13:12:18,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 13:12:18,289 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:12:18,289 INFO L195 NwaCegarLoop]: trace histogram [20, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:12:18,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2022-12-14 13:12:18,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-12-14 13:12:18,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-12-14 13:12:18,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:12:18,892 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 13:12:18,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:12:18,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1922378478, now seen corresponding path program 3 times [2022-12-14 13:12:18,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:12:18,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759371151] [2022-12-14 13:12:18,896 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 13:12:18,896 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:12:18,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:12:18,897 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:12:18,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-12-14 13:12:23,400 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-12-14 13:12:23,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 13:12:23,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 13:12:23,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:12:23,600 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-12-14 13:12:23,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:12:24,333 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-12-14 13:12:24,333 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:12:24,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [759371151] [2022-12-14 13:12:24,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [759371151] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:12:24,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [36235915] [2022-12-14 13:12:24,334 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 13:12:24,334 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 13:12:24,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 13:12:24,335 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 13:12:24,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2022-12-14 13:14:11,583 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-12-14 13:14:11,584 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 13:14:11,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 13:14:11,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:14:11,778 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-12-14 13:14:11,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:14:11,994 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-12-14 13:14:11,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [36235915] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:14:11,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544303892] [2022-12-14 13:14:11,995 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 13:14:11,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:14:11,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:14:11,996 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:14:11,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bc6bb4-2097-40e6-b9e4-edfdd52f0950/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process