./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs --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 e380a4dd0aea7669b3df1b51b64cad72427e7e99 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_90| --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:25:44,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:25:44,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:25:44,730 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:25:44,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:25:44,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:25:44,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:25:44,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:25:44,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:25:44,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:25:44,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:25:44,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:25:44,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:25:44,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:25:44,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:25:44,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:25:44,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:25:44,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:25:44,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:25:44,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:25:44,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:25:44,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:25:44,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:25:44,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:25:44,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:25:44,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:25:44,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:25:44,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:25:44,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:25:44,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:25:44,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:25:44,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:25:44,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:25:44,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:25:44,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:25:44,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:25:44,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:25:44,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:25:44,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:25:44,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:25:44,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:25:44,801 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-16 02:25:44,828 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:25:44,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:25:44,829 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:25:44,829 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:25:44,830 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:25:44,830 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:25:44,830 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:25:44,830 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:25:44,831 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:25:44,831 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:25:44,831 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:25:44,831 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:25:44,832 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:25:44,832 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:25:44,832 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:25:44,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:25:44,833 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:25:44,833 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-16 02:25:44,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:25:44,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:25:44,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:25:44,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:25:44,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:25:44,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:25:44,835 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-16 02:25:44,835 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:25:44,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:25:44,835 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:25:44,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:25:44,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:25:44,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:25:44,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:25:44,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:25:44,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:25:44,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:25:44,837 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:25:44,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:25:44,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:25:44,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:25:44,838 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:25:44,838 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e380a4dd0aea7669b3df1b51b64cad72427e7e99 [2021-10-16 02:25:45,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:25:45,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:25:45,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:25:45,203 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:25:45,204 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:25:45,205 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-2.i [2021-10-16 02:25:45,271 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/data/313440097/24d258ad5af443f7b89f4c5e905cb8c2/FLAG6f7710ef1 [2021-10-16 02:25:46,017 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:25:46,019 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-2.i [2021-10-16 02:25:46,053 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/data/313440097/24d258ad5af443f7b89f4c5e905cb8c2/FLAG6f7710ef1 [2021-10-16 02:25:46,140 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/data/313440097/24d258ad5af443f7b89f4c5e905cb8c2 [2021-10-16 02:25:46,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:25:46,149 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:25:46,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:25:46,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:25:46,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:25:46,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:25:46" (1/1) ... [2021-10-16 02:25:46,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25c4ed3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:46, skipping insertion in model container [2021-10-16 02:25:46,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:25:46" (1/1) ... [2021-10-16 02:25:46,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:25:46,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:25:46,776 WARN L228 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_c7649cf4-9a0b-4422-bb5b-bd285455da43/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-2.i[33021,33034] [2021-10-16 02:25:46,927 WARN L228 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_c7649cf4-9a0b-4422-bb5b-bd285455da43/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-2.i[44124,44137] [2021-10-16 02:25:46,941 WARN L228 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_c7649cf4-9a0b-4422-bb5b-bd285455da43/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-2.i[44245,44258] [2021-10-16 02:25:46,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:25:46,984 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:25:47,016 WARN L228 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_c7649cf4-9a0b-4422-bb5b-bd285455da43/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-2.i[33021,33034] [2021-10-16 02:25:47,090 WARN L228 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_c7649cf4-9a0b-4422-bb5b-bd285455da43/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-2.i[44124,44137] [2021-10-16 02:25:47,091 WARN L228 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_c7649cf4-9a0b-4422-bb5b-bd285455da43/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-2.i[44245,44258] [2021-10-16 02:25:47,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:25:47,155 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:25:47,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:47 WrapperNode [2021-10-16 02:25:47,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:25:47,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:25:47,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:25:47,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:25:47,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:47" (1/1) ... [2021-10-16 02:25:47,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:47" (1/1) ... [2021-10-16 02:25:47,385 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:25:47,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:25:47,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:25:47,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:25:47,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:47" (1/1) ... [2021-10-16 02:25:47,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:47" (1/1) ... [2021-10-16 02:25:47,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:47" (1/1) ... [2021-10-16 02:25:47,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:47" (1/1) ... [2021-10-16 02:25:47,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:47" (1/1) ... [2021-10-16 02:25:47,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:47" (1/1) ... [2021-10-16 02:25:47,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:47" (1/1) ... [2021-10-16 02:25:47,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:25:47,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:25:47,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:25:47,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:25:47,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:47" (1/1) ... [2021-10-16 02:25:47,597 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:25:47,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:25:47,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:25:47,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:25:47,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 02:25:47,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 02:25:47,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-16 02:25:47,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-16 02:25:47,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:25:47,681 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-10-16 02:25:47,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-16 02:25:47,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:25:47,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:25:47,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:25:47,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:25:53,175 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:25:53,175 INFO L299 CfgBuilder]: Removed 82 assume(true) statements. [2021-10-16 02:25:53,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:25:53 BoogieIcfgContainer [2021-10-16 02:25:53,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:25:53,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:25:53,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:25:53,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:25:53,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:25:46" (1/3) ... [2021-10-16 02:25:53,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1feafc5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:25:53, skipping insertion in model container [2021-10-16 02:25:53,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:47" (2/3) ... [2021-10-16 02:25:53,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1feafc5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:25:53, skipping insertion in model container [2021-10-16 02:25:53,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:25:53" (3/3) ... [2021-10-16 02:25:53,185 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test7-2.i [2021-10-16 02:25:53,190 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:25:53,190 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-16 02:25:53,239 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:25:53,245 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:25:53,246 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-16 02:25:53,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 117 states have (on average 1.8461538461538463) internal successors, (216), 123 states have internal predecessors, (216), 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) [2021-10-16 02:25:53,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-16 02:25:53,269 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:25:53,270 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-16 02:25:53,270 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-16 02:25:53,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:25:53,276 INFO L82 PathProgramCache]: Analyzing trace with hash 28486787, now seen corresponding path program 1 times [2021-10-16 02:25:53,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:25:53,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283671631] [2021-10-16 02:25:53,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:25:53,288 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:25:53,406 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:25:53,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [993480314] [2021-10-16 02:25:53,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:25:53,407 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:25:53,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:25:53,410 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:25:53,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 02:25:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:25:53,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-16 02:25:53,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:25:53,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-16 02:25:53,879 INFO L354 Elim1Store]: treesize reduction 83, result has 23.9 percent of original size [2021-10-16 02:25:53,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 31 [2021-10-16 02:25:54,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2021-10-16 02:25:54,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:25:54,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:25:54,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:25:54,487 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:25:54,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283671631] [2021-10-16 02:25:54,488 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:25:54,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993480314] [2021-10-16 02:25:54,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993480314] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:25:54,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:25:54,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-16 02:25:54,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088291188] [2021-10-16 02:25:54,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:25:54,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:25:54,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:25:54,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:25:54,512 INFO L87 Difference]: Start difference. First operand has 124 states, 117 states have (on average 1.8461538461538463) internal successors, (216), 123 states have internal predecessors, (216), 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) Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2021-10-16 02:25:56,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:25:56,349 INFO L93 Difference]: Finished difference Result 348 states and 623 transitions. [2021-10-16 02:25:56,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:25:56,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 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 4 [2021-10-16 02:25:56,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:25:56,366 INFO L225 Difference]: With dead ends: 348 [2021-10-16 02:25:56,366 INFO L226 Difference]: Without dead ends: 196 [2021-10-16 02:25:56,371 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.1ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:25:56,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-10-16 02:25:56,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 111. [2021-10-16 02:25:56,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 105 states have (on average 1.2380952380952381) internal successors, (130), 110 states have internal predecessors, (130), 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) [2021-10-16 02:25:56,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 130 transitions. [2021-10-16 02:25:56,445 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 130 transitions. Word has length 4 [2021-10-16 02:25:56,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:25:56,446 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 130 transitions. [2021-10-16 02:25:56,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2021-10-16 02:25:56,447 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 130 transitions. [2021-10-16 02:25:56,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-16 02:25:56,449 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:25:56,449 INFO L512 BasicCegarLoop]: 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] [2021-10-16 02:25:56,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:25:56,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:25:56,666 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-16 02:25:56,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:25:56,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1082929963, now seen corresponding path program 1 times [2021-10-16 02:25:56,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:25:56,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971357294] [2021-10-16 02:25:56,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:25:56,668 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:25:56,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:25:56,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:25:56,797 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:25:56,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971357294] [2021-10-16 02:25:56,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971357294] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:25:56,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:25:56,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 02:25:56,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819201586] [2021-10-16 02:25:56,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:25:56,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:25:56,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:25:56,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:25:56,803 INFO L87 Difference]: Start difference. First operand 111 states and 130 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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) [2021-10-16 02:25:57,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:25:57,403 INFO L93 Difference]: Finished difference Result 205 states and 241 transitions. [2021-10-16 02:25:57,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:25:57,404 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2021-10-16 02:25:57,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:25:57,406 INFO L225 Difference]: With dead ends: 205 [2021-10-16 02:25:57,406 INFO L226 Difference]: Without dead ends: 153 [2021-10-16 02:25:57,407 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:25:57,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-10-16 02:25:57,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 111. [2021-10-16 02:25:57,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 105 states have (on average 1.2285714285714286) internal successors, (129), 110 states have internal predecessors, (129), 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) [2021-10-16 02:25:57,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 129 transitions. [2021-10-16 02:25:57,433 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 129 transitions. Word has length 25 [2021-10-16 02:25:57,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:25:57,433 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 129 transitions. [2021-10-16 02:25:57,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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) [2021-10-16 02:25:57,434 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 129 transitions. [2021-10-16 02:25:57,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-16 02:25:57,435 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:25:57,435 INFO L512 BasicCegarLoop]: 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] [2021-10-16 02:25:57,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 02:25:57,435 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-16 02:25:57,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:25:57,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1504902018, now seen corresponding path program 1 times [2021-10-16 02:25:57,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:25:57,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986606758] [2021-10-16 02:25:57,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:25:57,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:25:57,476 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:25:57,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1597563958] [2021-10-16 02:25:57,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:25:57,486 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:25:57,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:25:57,491 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:25:57,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-16 02:25:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:25:57,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:25:57,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:25:57,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:25:57,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:25:58,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:25:58,008 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:25:58,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986606758] [2021-10-16 02:25:58,009 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:25:58,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597563958] [2021-10-16 02:25:58,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597563958] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:25:58,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:25:58,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 02:25:58,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963059068] [2021-10-16 02:25:58,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:25:58,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:25:58,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:25:58,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:25:58,015 INFO L87 Difference]: Start difference. First operand 111 states and 129 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) [2021-10-16 02:25:58,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:25:58,212 INFO L93 Difference]: Finished difference Result 265 states and 307 transitions. [2021-10-16 02:25:58,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:25:58,213 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 [2021-10-16 02:25:58,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:25:58,214 INFO L225 Difference]: With dead ends: 265 [2021-10-16 02:25:58,214 INFO L226 Difference]: Without dead ends: 159 [2021-10-16 02:25:58,215 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:25:58,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-10-16 02:25:58,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 156. [2021-10-16 02:25:58,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 150 states have (on average 1.2) internal successors, (180), 155 states have internal predecessors, (180), 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) [2021-10-16 02:25:58,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 180 transitions. [2021-10-16 02:25:58,228 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 180 transitions. Word has length 28 [2021-10-16 02:25:58,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:25:58,228 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 180 transitions. [2021-10-16 02:25:58,229 INFO L471 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) [2021-10-16 02:25:58,229 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 180 transitions. [2021-10-16 02:25:58,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-16 02:25:58,230 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:25:58,230 INFO L512 BasicCegarLoop]: 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] [2021-10-16 02:25:58,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:25:58,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:25:58,438 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-16 02:25:58,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:25:58,439 INFO L82 PathProgramCache]: Analyzing trace with hash -190565616, now seen corresponding path program 1 times [2021-10-16 02:25:58,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:25:58,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82180739] [2021-10-16 02:25:58,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:25:58,440 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:25:58,463 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:25:58,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [32690726] [2021-10-16 02:25:58,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:25:58,464 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:25:58,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:25:58,466 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:25:58,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-16 02:25:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:25:58,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:25:58,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:25:58,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:25:58,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:25:58,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:25:58,907 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:25:58,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82180739] [2021-10-16 02:25:58,908 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:25:58,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32690726] [2021-10-16 02:25:58,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32690726] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:25:58,908 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:25:58,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:25:58,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353646560] [2021-10-16 02:25:58,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:25:58,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:25:58,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:25:58,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:25:58,910 INFO L87 Difference]: Start difference. First operand 156 states and 180 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2021-10-16 02:25:59,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:25:59,019 INFO L93 Difference]: Finished difference Result 298 states and 349 transitions. [2021-10-16 02:25:59,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:25:59,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 33 [2021-10-16 02:25:59,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:25:59,023 INFO L225 Difference]: With dead ends: 298 [2021-10-16 02:25:59,023 INFO L226 Difference]: Without dead ends: 160 [2021-10-16 02:25:59,027 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:25:59,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-10-16 02:25:59,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2021-10-16 02:25:59,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 154 states have (on average 1.1948051948051948) internal successors, (184), 159 states have internal predecessors, (184), 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) [2021-10-16 02:25:59,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 184 transitions. [2021-10-16 02:25:59,050 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 184 transitions. Word has length 33 [2021-10-16 02:25:59,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:25:59,051 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 184 transitions. [2021-10-16 02:25:59,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2021-10-16 02:25:59,051 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 184 transitions. [2021-10-16 02:25:59,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-16 02:25:59,053 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:25:59,053 INFO L512 BasicCegarLoop]: 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] [2021-10-16 02:25:59,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:25:59,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:25:59,254 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-16 02:25:59,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:25:59,254 INFO L82 PathProgramCache]: Analyzing trace with hash -143672016, now seen corresponding path program 1 times [2021-10-16 02:25:59,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:25:59,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742183412] [2021-10-16 02:25:59,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:25:59,255 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:25:59,276 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:25:59,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [659370085] [2021-10-16 02:25:59,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:25:59,277 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:25:59,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:25:59,278 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:25:59,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-16 02:25:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:25:59,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:25:59,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:25:59,712 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:25:59,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:25:59,841 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:25:59,842 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:25:59,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742183412] [2021-10-16 02:25:59,842 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:25:59,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659370085] [2021-10-16 02:25:59,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659370085] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:25:59,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [372093937] [2021-10-16 02:25:59,879 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2021-10-16 02:25:59,879 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 02:25:59,885 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 02:25:59,891 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 02:25:59,891 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 02:25:59,959 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:25:59,961 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:25:59,962 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:25:59,962 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-16 02:25:59,965 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:25:59,966 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:25:59,966 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-16 02:25:59,967 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:25:59,967 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:25:59,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-16 02:25:59,969 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:25:59,970 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:25:59,971 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 02:25:59,971 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:25:59,972 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:25:59,973 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 02:25:59,975 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-10-16 02:25:59,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:25:59,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:25:59,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:26:00,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-16 02:26:00,003 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:26:00,003 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 02:26:00,004 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:26:00,005 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 02:26:00,005 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 02:26:00,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:26:00,059 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:26:00,061 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:26:00,062 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 166 [2021-10-16 02:26:00,063 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-16 02:26:00,063 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:163, output treesize:166 [2021-10-16 02:26:00,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:26:00,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:26:00,288 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_90| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) 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:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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) [2021-10-16 02:26:00,292 INFO L168 Benchmark]: Toolchain (without parser) took 14142.69 ms. Allocated memory was 111.1 MB in the beginning and 241.2 MB in the end (delta: 130.0 MB). Free memory was 70.7 MB in the beginning and 158.1 MB in the end (delta: -87.4 MB). Peak memory consumption was 42.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:26:00,292 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 111.1 MB. Free memory is still 89.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:26:00,292 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1003.51 ms. Allocated memory is still 111.1 MB. Free memory was 70.5 MB in the beginning and 62.5 MB in the end (delta: 8.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:26:00,293 INFO L168 Benchmark]: Boogie Procedure Inliner took 227.99 ms. Allocated memory is still 111.1 MB. Free memory was 62.5 MB in the beginning and 55.1 MB in the end (delta: 7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:26:00,294 INFO L168 Benchmark]: Boogie Preprocessor took 196.24 ms. Allocated memory is still 111.1 MB. Free memory was 55.1 MB in the beginning and 47.3 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:26:00,294 INFO L168 Benchmark]: RCFGBuilder took 5594.46 ms. Allocated memory was 111.1 MB in the beginning and 157.3 MB in the end (delta: 46.1 MB). Free memory was 47.3 MB in the beginning and 72.6 MB in the end (delta: -25.3 MB). Peak memory consumption was 45.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:26:00,295 INFO L168 Benchmark]: TraceAbstraction took 7111.44 ms. Allocated memory was 157.3 MB in the beginning and 241.2 MB in the end (delta: 83.9 MB). Free memory was 72.6 MB in the beginning and 158.1 MB in the end (delta: -85.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:26:00,298 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 111.1 MB. Free memory is still 89.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1003.51 ms. Allocated memory is still 111.1 MB. Free memory was 70.5 MB in the beginning and 62.5 MB in the end (delta: 8.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 227.99 ms. Allocated memory is still 111.1 MB. Free memory was 62.5 MB in the beginning and 55.1 MB in the end (delta: 7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 196.24 ms. Allocated memory is still 111.1 MB. Free memory was 55.1 MB in the beginning and 47.3 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5594.46 ms. Allocated memory was 111.1 MB in the beginning and 157.3 MB in the end (delta: 46.1 MB). Free memory was 47.3 MB in the beginning and 72.6 MB in the end (delta: -25.3 MB). Peak memory consumption was 45.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7111.44 ms. Allocated memory was 157.3 MB in the beginning and 241.2 MB in the end (delta: 83.9 MB). Free memory was 72.6 MB in the beginning and 158.1 MB in the end (delta: -85.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_90| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_90|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 02:26:00,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7649cf4-9a0b-4422-bb5b-bd285455da43/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...