./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_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_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/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_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/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_3b793642-66d7-4197-9a64-1d02918ffb1e/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 b749a591ea7178251f76dc18ba3f12f69a53b50b ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/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 03:05:34,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:05:34,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:05:34,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:05:34,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:05:34,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:05:34,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:05:34,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:05:34,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:05:34,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:05:34,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:05:34,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:05:34,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:05:34,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:05:34,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:05:34,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:05:34,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:05:34,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:05:34,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:05:34,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:05:34,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:05:34,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:05:34,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:05:34,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:05:34,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:05:34,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:05:34,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:05:34,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:05:34,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:05:34,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:05:34,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:05:34,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:05:34,804 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:05:34,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:05:34,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:05:34,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:05:34,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:05:34,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:05:34,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:05:34,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:05:34,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:05:34,815 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-16 03:05:34,868 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:05:34,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:05:34,870 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:05:34,870 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:05:34,871 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:05:34,871 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:05:34,871 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 03:05:34,871 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:05:34,878 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:05:34,878 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 03:05:34,880 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 03:05:34,880 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:05:34,880 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 03:05:34,881 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 03:05:34,881 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 03:05:34,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:05:34,882 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:05:34,882 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-16 03:05:34,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 03:05:34,883 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:05:34,883 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:05:34,883 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:05:34,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:05:34,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:05:34,884 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-16 03:05:34,884 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:05:34,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:05:34,885 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:05:34,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:05:34,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:05:34,887 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:05:34,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:05:34,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:05:34,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:05:34,888 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:05:34,889 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 03:05:34,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 03:05:34,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:05:34,889 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:05:34,890 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:05:34,890 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_3b793642-66d7-4197-9a64-1d02918ffb1e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b749a591ea7178251f76dc18ba3f12f69a53b50b [2021-10-16 03:05:35,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:05:35,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:05:35,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:05:35,189 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:05:35,190 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:05:35,191 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i [2021-10-16 03:05:35,259 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/data/e5331d25a/973887d49e1b428db3c8cbb419ac207f/FLAG2eb793548 [2021-10-16 03:05:35,943 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:05:35,943 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i [2021-10-16 03:05:35,970 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/data/e5331d25a/973887d49e1b428db3c8cbb419ac207f/FLAG2eb793548 [2021-10-16 03:05:36,143 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/data/e5331d25a/973887d49e1b428db3c8cbb419ac207f [2021-10-16 03:05:36,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:05:36,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:05:36,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:05:36,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:05:36,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:05:36,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:05:36" (1/1) ... [2021-10-16 03:05:36,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@281d6fa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:36, skipping insertion in model container [2021-10-16 03:05:36,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:05:36" (1/1) ... [2021-10-16 03:05:36,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:05:36,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:05:36,698 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_3b793642-66d7-4197-9a64-1d02918ffb1e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i[33021,33034] [2021-10-16 03:05:36,808 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_3b793642-66d7-4197-9a64-1d02918ffb1e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i[44124,44137] [2021-10-16 03:05:36,809 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_3b793642-66d7-4197-9a64-1d02918ffb1e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i[44245,44258] [2021-10-16 03:05:36,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:05:36,852 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:05:36,922 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_3b793642-66d7-4197-9a64-1d02918ffb1e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i[33021,33034] [2021-10-16 03:05:36,981 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_3b793642-66d7-4197-9a64-1d02918ffb1e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i[44124,44137] [2021-10-16 03:05:36,982 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_3b793642-66d7-4197-9a64-1d02918ffb1e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i[44245,44258] [2021-10-16 03:05:36,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:05:37,039 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:05:37,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:37 WrapperNode [2021-10-16 03:05:37,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:05:37,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:05:37,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:05:37,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:05:37,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:37" (1/1) ... [2021-10-16 03:05:37,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:37" (1/1) ... [2021-10-16 03:05:37,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:05:37,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:05:37,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:05:37,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:05:37,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:37" (1/1) ... [2021-10-16 03:05:37,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:37" (1/1) ... [2021-10-16 03:05:37,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:37" (1/1) ... [2021-10-16 03:05:37,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:37" (1/1) ... [2021-10-16 03:05:37,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:37" (1/1) ... [2021-10-16 03:05:37,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:37" (1/1) ... [2021-10-16 03:05:37,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:37" (1/1) ... [2021-10-16 03:05:37,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:05:37,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:05:37,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:05:37,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:05:37,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:37" (1/1) ... [2021-10-16 03:05:37,369 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:05:37,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:05:37,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:05:37,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:05:37,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 03:05:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 03:05:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-16 03:05:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-16 03:05:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:05:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-10-16 03:05:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-16 03:05:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 03:05:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 03:05:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:05:37,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:05:42,816 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:05:42,816 INFO L299 CfgBuilder]: Removed 82 assume(true) statements. [2021-10-16 03:05:42,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:05:42 BoogieIcfgContainer [2021-10-16 03:05:42,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:05:42,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:05:42,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:05:42,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:05:42,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:05:36" (1/3) ... [2021-10-16 03:05:42,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc2ed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:05:42, skipping insertion in model container [2021-10-16 03:05:42,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:37" (2/3) ... [2021-10-16 03:05:42,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc2ed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:05:42, skipping insertion in model container [2021-10-16 03:05:42,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:05:42" (3/3) ... [2021-10-16 03:05:42,832 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test7-2.i [2021-10-16 03:05:42,839 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:05:42,839 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-16 03:05:42,900 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:05:42,909 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 03:05:42,909 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-16 03:05:42,932 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 03:05:42,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-16 03:05:42,939 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:05:42,939 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-16 03:05:42,940 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 03:05:42,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:05:42,947 INFO L82 PathProgramCache]: Analyzing trace with hash 28486787, now seen corresponding path program 1 times [2021-10-16 03:05:42,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:05:42,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192975051] [2021-10-16 03:05:42,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:05:42,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:05:43,095 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 03:05:43,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [399396265] [2021-10-16 03:05:43,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:05:43,097 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:05:43,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:05:43,101 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:05:43,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 03:05:43,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:05:43,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-16 03:05:43,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:05:43,449 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 03:05:43,559 INFO L354 Elim1Store]: treesize reduction 83, result has 23.9 percent of original size [2021-10-16 03:05:43,560 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 03:05:44,143 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 03:05:44,156 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 03:05:44,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:05:44,253 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 03:05:44,254 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:05:44,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192975051] [2021-10-16 03:05:44,255 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 03:05:44,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399396265] [2021-10-16 03:05:44,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399396265] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:05:44,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:05:44,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-16 03:05:44,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813150487] [2021-10-16 03:05:44,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 03:05:44,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:05:44,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 03:05:44,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:05:44,289 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 03:05:46,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:05:46,177 INFO L93 Difference]: Finished difference Result 348 states and 623 transitions. [2021-10-16 03:05:46,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 03:05:46,179 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 03:05:46,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:05:46,192 INFO L225 Difference]: With dead ends: 348 [2021-10-16 03:05:46,192 INFO L226 Difference]: Without dead ends: 196 [2021-10-16 03:05:46,196 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 53.8ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:05:46,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-10-16 03:05:46,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 111. [2021-10-16 03:05:46,239 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 03:05:46,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 130 transitions. [2021-10-16 03:05:46,242 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 130 transitions. Word has length 4 [2021-10-16 03:05:46,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:05:46,243 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 130 transitions. [2021-10-16 03:05:46,243 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 03:05:46,243 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 130 transitions. [2021-10-16 03:05:46,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-16 03:05:46,245 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:05:46,245 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 03:05:46,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 03:05:46,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-16 03:05:46,452 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 03:05:46,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:05:46,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1082929963, now seen corresponding path program 1 times [2021-10-16 03:05:46,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:05:46,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362376190] [2021-10-16 03:05:46,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:05:46,453 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:05:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:05:46,590 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 03:05:46,591 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:05:46,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362376190] [2021-10-16 03:05:46,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362376190] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:05:46,592 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:05:46,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:05:46,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037903997] [2021-10-16 03:05:46,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:05:46,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:05:46,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:05:46,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:05:46,611 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 03:05:47,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:05:47,156 INFO L93 Difference]: Finished difference Result 205 states and 241 transitions. [2021-10-16 03:05:47,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:05:47,157 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 03:05:47,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:05:47,159 INFO L225 Difference]: With dead ends: 205 [2021-10-16 03:05:47,159 INFO L226 Difference]: Without dead ends: 153 [2021-10-16 03:05:47,160 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:05:47,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-10-16 03:05:47,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 111. [2021-10-16 03:05:47,172 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 03:05:47,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 129 transitions. [2021-10-16 03:05:47,174 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 129 transitions. Word has length 25 [2021-10-16 03:05:47,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:05:47,174 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 129 transitions. [2021-10-16 03:05:47,174 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 03:05:47,175 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 129 transitions. [2021-10-16 03:05:47,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-16 03:05:47,176 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:05:47,176 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 03:05:47,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 03:05:47,177 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 03:05:47,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:05:47,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1504902018, now seen corresponding path program 1 times [2021-10-16 03:05:47,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:05:47,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528451615] [2021-10-16 03:05:47,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:05:47,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:05:47,223 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 03:05:47,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1713665208] [2021-10-16 03:05:47,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:05:47,237 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:05:47,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:05:47,245 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:05:47,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-16 03:05:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:05:47,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 03:05:47,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:05:47,638 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 03:05:47,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:05:47,816 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 03:05:47,817 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:05:47,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528451615] [2021-10-16 03:05:47,818 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 03:05:47,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713665208] [2021-10-16 03:05:47,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713665208] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:05:47,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:05:47,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 03:05:47,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879043830] [2021-10-16 03:05:47,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:05:47,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:05:47,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:05:47,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:05:47,824 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 03:05:48,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:05:48,079 INFO L93 Difference]: Finished difference Result 265 states and 307 transitions. [2021-10-16 03:05:48,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:05:48,080 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 03:05:48,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:05:48,084 INFO L225 Difference]: With dead ends: 265 [2021-10-16 03:05:48,084 INFO L226 Difference]: Without dead ends: 159 [2021-10-16 03:05:48,085 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:05:48,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-10-16 03:05:48,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 156. [2021-10-16 03:05:48,099 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 03:05:48,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 180 transitions. [2021-10-16 03:05:48,122 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 180 transitions. Word has length 28 [2021-10-16 03:05:48,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:05:48,123 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 180 transitions. [2021-10-16 03:05:48,123 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 03:05:48,124 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 180 transitions. [2021-10-16 03:05:48,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-16 03:05:48,125 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:05:48,126 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 03:05:48,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-16 03:05:48,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:05:48,342 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 03:05:48,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:05:48,342 INFO L82 PathProgramCache]: Analyzing trace with hash -190565616, now seen corresponding path program 1 times [2021-10-16 03:05:48,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:05:48,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113786244] [2021-10-16 03:05:48,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:05:48,343 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:05:48,387 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 03:05:48,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1232301195] [2021-10-16 03:05:48,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:05:48,388 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:05:48,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:05:48,392 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:05:48,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-16 03:05:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:05:48,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 03:05:48,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:05:48,763 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 03:05:48,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:05:48,908 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 03:05:48,909 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:05:48,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113786244] [2021-10-16 03:05:48,910 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 03:05:48,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232301195] [2021-10-16 03:05:48,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232301195] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:05:48,910 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:05:48,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 03:05:48,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659001590] [2021-10-16 03:05:48,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:05:48,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:05:48,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:05:48,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:05:48,913 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 03:05:49,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:05:49,039 INFO L93 Difference]: Finished difference Result 298 states and 349 transitions. [2021-10-16 03:05:49,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:05:49,049 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 03:05:49,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:05:49,050 INFO L225 Difference]: With dead ends: 298 [2021-10-16 03:05:49,051 INFO L226 Difference]: Without dead ends: 160 [2021-10-16 03:05:49,052 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:05:49,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-10-16 03:05:49,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2021-10-16 03:05:49,073 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 03:05:49,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 184 transitions. [2021-10-16 03:05:49,074 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 184 transitions. Word has length 33 [2021-10-16 03:05:49,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:05:49,075 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 184 transitions. [2021-10-16 03:05:49,075 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 03:05:49,076 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 184 transitions. [2021-10-16 03:05:49,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-16 03:05:49,086 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:05:49,087 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 03:05:49,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-16 03:05:49,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:05:49,314 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 03:05:49,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:05:49,315 INFO L82 PathProgramCache]: Analyzing trace with hash -143672016, now seen corresponding path program 1 times [2021-10-16 03:05:49,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:05:49,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133921800] [2021-10-16 03:05:49,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:05:49,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:05:49,357 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 03:05:49,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2049647648] [2021-10-16 03:05:49,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:05:49,358 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:05:49,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:05:49,359 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:05:49,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-16 03:05:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:05:49,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 03:05:49,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:05:49,828 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 03:05:49,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:05:49,982 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 03:05:49,983 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:05:49,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133921800] [2021-10-16 03:05:49,983 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 03:05:49,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049647648] [2021-10-16 03:05:49,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049647648] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:05:49,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [761120886] [2021-10-16 03:05:50,024 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2021-10-16 03:05:50,025 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 03:05:50,032 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 03:05:50,039 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 03:05:50,039 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 03:05:50,147 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:05:50,149 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:05:50,149 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:05:50,150 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-16 03:05:50,152 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:05:50,153 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:05:50,154 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-16 03:05:50,154 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:05:50,155 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:05:50,156 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-16 03:05:50,157 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:05:50,158 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:05:50,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 03:05:50,159 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:05:50,160 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:05:50,160 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 03:05:50,163 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-10-16 03:05:50,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:05:50,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:05:50,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:05:50,209 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 03:05:50,210 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:05:50,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 03:05:50,211 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:05:50,211 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 03:05:50,212 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 03:05:50,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:05:50,245 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:05:50,247 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:05:50,249 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 166 [2021-10-16 03:05:50,249 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-16 03:05:50,250 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:163, output treesize:166 [2021-10-16 03:05:50,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-16 03:05:50,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:05:50,470 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 03:05:50,475 INFO L168 Benchmark]: Toolchain (without parser) took 14326.20 ms. Allocated memory was 125.8 MB in the beginning and 228.6 MB in the end (delta: 102.8 MB). Free memory was 83.4 MB in the beginning and 128.0 MB in the end (delta: -44.6 MB). Peak memory consumption was 57.0 MB. Max. memory is 16.1 GB. [2021-10-16 03:05:50,475 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 125.8 MB. Free memory is still 103.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:05:50,476 INFO L168 Benchmark]: CACSL2BoogieTranslator took 890.47 ms. Allocated memory is still 125.8 MB. Free memory was 83.2 MB in the beginning and 75.3 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:05:50,477 INFO L168 Benchmark]: Boogie Procedure Inliner took 143.52 ms. Allocated memory is still 125.8 MB. Free memory was 75.3 MB in the beginning and 67.9 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 03:05:50,477 INFO L168 Benchmark]: Boogie Preprocessor took 158.30 ms. Allocated memory is still 125.8 MB. Free memory was 67.9 MB in the beginning and 59.3 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:05:50,478 INFO L168 Benchmark]: RCFGBuilder took 5475.99 ms. Allocated memory was 125.8 MB in the beginning and 178.3 MB in the end (delta: 52.4 MB). Free memory was 59.3 MB in the beginning and 89.1 MB in the end (delta: -29.8 MB). Peak memory consumption was 43.6 MB. Max. memory is 16.1 GB. [2021-10-16 03:05:50,479 INFO L168 Benchmark]: TraceAbstraction took 7650.75 ms. Allocated memory was 178.3 MB in the beginning and 228.6 MB in the end (delta: 50.3 MB). Free memory was 89.1 MB in the beginning and 128.0 MB in the end (delta: -38.9 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:05:50,483 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 125.8 MB. Free memory is still 103.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 890.47 ms. Allocated memory is still 125.8 MB. Free memory was 83.2 MB in the beginning and 75.3 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 143.52 ms. Allocated memory is still 125.8 MB. Free memory was 75.3 MB in the beginning and 67.9 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 158.30 ms. Allocated memory is still 125.8 MB. Free memory was 67.9 MB in the beginning and 59.3 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5475.99 ms. Allocated memory was 125.8 MB in the beginning and 178.3 MB in the end (delta: 52.4 MB). Free memory was 59.3 MB in the beginning and 89.1 MB in the end (delta: -29.8 MB). Peak memory consumption was 43.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7650.75 ms. Allocated memory was 178.3 MB in the beginning and 228.6 MB in the end (delta: 50.3 MB). Free memory was 89.1 MB in the beginning and 128.0 MB in the end (delta: -38.9 MB). Peak memory consumption was 11.4 MB. 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 03:05:50,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b793642-66d7-4197-9a64-1d02918ffb1e/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...