./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark43_conjunctive_abstracted.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc3b82a7-539c-4c0c-b42a-0cf67f59b566/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc3b82a7-539c-4c0c-b42a-0cf67f59b566/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc3b82a7-539c-4c0c-b42a-0cf67f59b566/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc3b82a7-539c-4c0c-b42a-0cf67f59b566/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark43_conjunctive_abstracted.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc3b82a7-539c-4c0c-b42a-0cf67f59b566/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc3b82a7-539c-4c0c-b42a-0cf67f59b566/bin/utaipan-I9t0OCRTmS --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 95b5179edb030463668b341d624243529de83b4afda6c4d2e0bf3bc1cb57b210 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 06:49:18,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:49:18,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:49:18,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:49:18,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:49:18,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:49:18,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:49:18,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:49:18,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:49:18,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:49:18,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:49:18,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:49:18,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:49:18,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:49:18,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:49:18,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:49:18,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:49:18,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:49:18,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:49:18,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:49:18,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:49:18,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:49:18,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:49:18,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:49:18,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:49:18,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:49:18,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:49:18,165 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:49:18,166 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:49:18,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:49:18,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:49:18,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:49:18,169 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:49:18,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:49:18,171 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:49:18,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:49:18,172 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:49:18,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:49:18,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:49:18,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:49:18,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:49:18,176 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc3b82a7-539c-4c0c-b42a-0cf67f59b566/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 06:49:18,200 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:49:18,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:49:18,201 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:49:18,201 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:49:18,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:49:18,202 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:49:18,202 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:49:18,203 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:49:18,203 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:49:18,203 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:49:18,203 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:49:18,204 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:49:18,204 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:49:18,204 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:49:18,204 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:49:18,205 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:49:18,205 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:49:18,205 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:49:18,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:49:18,206 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:49:18,206 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 06:49:18,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:49:18,207 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:49:18,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:49:18,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:49:18,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:49:18,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:49:18,208 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 06:49:18,208 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:49:18,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:49:18,208 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:49:18,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:49:18,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:49:18,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:49:18,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:49:18,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:49:18,210 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:49:18,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:49:18,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:49:18,210 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:49:18,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:49:18,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:49:18,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:49:18,211 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc3b82a7-539c-4c0c-b42a-0cf67f59b566/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc3b82a7-539c-4c0c-b42a-0cf67f59b566/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95b5179edb030463668b341d624243529de83b4afda6c4d2e0bf3bc1cb57b210 [2022-11-19 06:49:18,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:49:18,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:49:18,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:49:18,522 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:49:18,523 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:49:18,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc3b82a7-539c-4c0c-b42a-0cf67f59b566/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/loop-zilu/benchmark43_conjunctive_abstracted.i [2022-11-19 06:49:18,648 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc3b82a7-539c-4c0c-b42a-0cf67f59b566/bin/utaipan-I9t0OCRTmS/data/209bf19af/a262afad5fe1440eb1ffb1dc0491a54a/FLAGf4ff6e7c5 [2022-11-19 06:49:19,224 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:49:19,226 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc3b82a7-539c-4c0c-b42a-0cf67f59b566/sv-benchmarks/c/loop-zilu/benchmark43_conjunctive_abstracted.i [2022-11-19 06:49:19,235 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc3b82a7-539c-4c0c-b42a-0cf67f59b566/bin/utaipan-I9t0OCRTmS/data/209bf19af/a262afad5fe1440eb1ffb1dc0491a54a/FLAGf4ff6e7c5 [2022-11-19 06:49:19,568 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc3b82a7-539c-4c0c-b42a-0cf67f59b566/bin/utaipan-I9t0OCRTmS/data/209bf19af/a262afad5fe1440eb1ffb1dc0491a54a [2022-11-19 06:49:19,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:49:19,572 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:49:19,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:49:19,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:49:19,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:49:19,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:49:19" (1/1) ... [2022-11-19 06:49:19,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dbc8eb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:49:19, skipping insertion in model container [2022-11-19 06:49:19,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:49:19" (1/1) ... [2022-11-19 06:49:19,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:49:19,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:49:19,804 WARN L234 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_cc3b82a7-539c-4c0c-b42a-0cf67f59b566/sv-benchmarks/c/loop-zilu/benchmark43_conjunctive_abstracted.i[909,922] [2022-11-19 06:49:19,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:49:19,845 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:49:19,870 WARN L234 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_cc3b82a7-539c-4c0c-b42a-0cf67f59b566/sv-benchmarks/c/loop-zilu/benchmark43_conjunctive_abstracted.i[909,922] [2022-11-19 06:49:19,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:49:19,899 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:49:19,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:49:19 WrapperNode [2022-11-19 06:49:19,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:49:19,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:49:19,902 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:49:19,902 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:49:19,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:49:19" (1/1) ... [2022-11-19 06:49:19,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:49:19" (1/1) ... [2022-11-19 06:49:19,941 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42 [2022-11-19 06:49:19,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:49:19,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:49:19,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:49:19,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:49:19,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:49:19" (1/1) ... [2022-11-19 06:49:19,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:49:19" (1/1) ... [2022-11-19 06:49:19,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:49:19" (1/1) ... [2022-11-19 06:49:19,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:49:19" (1/1) ... [2022-11-19 06:49:19,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:49:19" (1/1) ... [2022-11-19 06:49:19,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:49:19" (1/1) ... [2022-11-19 06:49:19,965 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:49:19" (1/1) ... [2022-11-19 06:49:19,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:49:19" (1/1) ... [2022-11-19 06:49:19,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:49:19,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:49:19,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:49:19,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:49:19,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:49:19" (1/1) ... [2022-11-19 06:49:19,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:49:19,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc3b82a7-539c-4c0c-b42a-0cf67f59b566/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:49:20,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc3b82a7-539c-4c0c-b42a-0cf67f59b566/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:49:20,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc3b82a7-539c-4c0c-b42a-0cf67f59b566/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:49:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:49:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:49:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:49:20,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:49:20,167 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:49:20,170 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:49:20,351 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:49:20,384 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:49:20,385 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 06:49:20,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:49:20 BoogieIcfgContainer [2022-11-19 06:49:20,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:49:20,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:49:20,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:49:20,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:49:20,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:49:19" (1/3) ... [2022-11-19 06:49:20,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ef90de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:49:20, skipping insertion in model container [2022-11-19 06:49:20,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:49:19" (2/3) ... [2022-11-19 06:49:20,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ef90de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:49:20, skipping insertion in model container [2022-11-19 06:49:20,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:49:20" (3/3) ... [2022-11-19 06:49:20,398 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark43_conjunctive_abstracted.i [2022-11-19 06:49:20,417 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:49:20,417 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-19 06:49:20,469 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:49:20,477 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7c5c9a2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:49:20,477 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-19 06:49:20,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:49:20,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 06:49:20,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:49:20,501 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 06:49:20,503 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 06:49:20,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:49:20,514 INFO L85 PathProgramCache]: Analyzing trace with hash 75992645, now seen corresponding path program 1 times [2022-11-19 06:49:20,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:49:20,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221464667] [2022-11-19 06:49:20,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:49:20,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:49:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:49:20,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:49:20,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:49:20,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221464667] [2022-11-19 06:49:20,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221464667] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:49:20,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:49:20,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:49:20,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163762334] [2022-11-19 06:49:20,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:49:20,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:49:20,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:49:20,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:49:20,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:49:20,973 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 15 states have internal predecessors, (18), 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 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:49:21,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:49:21,067 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-11-19 06:49:21,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:49:21,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-11-19 06:49:21,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:49:21,079 INFO L225 Difference]: With dead ends: 20 [2022-11-19 06:49:21,080 INFO L226 Difference]: Without dead ends: 11 [2022-11-19 06:49:21,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:49:21,087 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:49:21,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 10 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:49:21,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-19 06:49:21,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-19 06:49:21,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.25) internal successors, (10), 10 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:49:21,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2022-11-19 06:49:21,125 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 5 [2022-11-19 06:49:21,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:49:21,126 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2022-11-19 06:49:21,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:49:21,127 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2022-11-19 06:49:21,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 06:49:21,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:49:21,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 06:49:21,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:49:21,129 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 06:49:21,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:49:21,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1939195248, now seen corresponding path program 1 times [2022-11-19 06:49:21,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:49:21,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738277013] [2022-11-19 06:49:21,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:49:21,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:49:21,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:49:21,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:49:21,219 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:49:21,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738277013] [2022-11-19 06:49:21,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738277013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:49:21,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:49:21,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:49:21,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705151104] [2022-11-19 06:49:21,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:49:21,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:49:21,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:49:21,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:49:21,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:49:21,224 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:49:21,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:49:21,240 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2022-11-19 06:49:21,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:49:21,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-11-19 06:49:21,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:49:21,242 INFO L225 Difference]: With dead ends: 11 [2022-11-19 06:49:21,242 INFO L226 Difference]: Without dead ends: 10 [2022-11-19 06:49:21,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:49:21,257 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:49:21,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:49:21,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-19 06:49:21,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-19 06:49:21,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:49:21,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2022-11-19 06:49:21,262 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 6 [2022-11-19 06:49:21,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:49:21,262 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2022-11-19 06:49:21,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:49:21,263 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2022-11-19 06:49:21,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 06:49:21,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:49:21,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:49:21,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:49:21,265 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 06:49:21,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:49:21,266 INFO L85 PathProgramCache]: Analyzing trace with hash 14489511, now seen corresponding path program 1 times [2022-11-19 06:49:21,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:49:21,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038787085] [2022-11-19 06:49:21,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:49:21,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:49:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:49:21,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:49:21,423 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:49:21,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038787085] [2022-11-19 06:49:21,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038787085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:49:21,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:49:21,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:49:21,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583811128] [2022-11-19 06:49:21,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:49:21,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:49:21,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:49:21,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:49:21,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:49:21,430 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:49:21,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:49:21,453 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2022-11-19 06:49:21,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:49:21,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-19 06:49:21,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:49:21,455 INFO L225 Difference]: With dead ends: 10 [2022-11-19 06:49:21,455 INFO L226 Difference]: Without dead ends: 9 [2022-11-19 06:49:21,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:49:21,460 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:49:21,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:49:21,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-19 06:49:21,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-19 06:49:21,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:49:21,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-11-19 06:49:21,470 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 7 [2022-11-19 06:49:21,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:49:21,470 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-11-19 06:49:21,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:49:21,471 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-11-19 06:49:21,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 06:49:21,473 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:49:21,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:49:21,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:49:21,474 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 06:49:21,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:49:21,481 INFO L85 PathProgramCache]: Analyzing trace with hash 449174898, now seen corresponding path program 1 times [2022-11-19 06:49:21,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:49:21,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749802334] [2022-11-19 06:49:21,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:49:21,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:49:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:49:21,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:49:21,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:49:21,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749802334] [2022-11-19 06:49:21,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749802334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:49:21,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:49:21,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:49:21,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108254446] [2022-11-19 06:49:21,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:49:21,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:49:21,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:49:21,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:49:21,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:49:21,596 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:49:21,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:49:21,614 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2022-11-19 06:49:21,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:49:21,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-11-19 06:49:21,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:49:21,618 INFO L225 Difference]: With dead ends: 9 [2022-11-19 06:49:21,618 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 06:49:21,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:49:21,620 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:49:21,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:49:21,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 06:49:21,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 06:49:21,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:49:21,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 06:49:21,628 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-11-19 06:49:21,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:49:21,629 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 06:49:21,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:49:21,629 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 06:49:21,630 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 06:49:21,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-19 06:49:21,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-19 06:49:21,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-19 06:49:21,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-19 06:49:21,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 06:49:21,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 06:49:21,646 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-11-19 06:49:21,647 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 06:49:21,647 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-11-19 06:49:21,648 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2022-11-19 06:49:21,648 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2022-11-19 06:49:21,648 INFO L899 garLoopResultBuilder]: For program point L27-2(lines 24 33) no Hoare annotation was computed. [2022-11-19 06:49:21,648 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-11-19 06:49:21,648 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-11-19 06:49:21,649 INFO L899 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2022-11-19 06:49:21,650 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-11-19 06:49:21,651 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 06:49:21,651 INFO L899 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2022-11-19 06:49:21,651 INFO L899 garLoopResultBuilder]: For program point L28-1(lines 24 33) no Hoare annotation was computed. [2022-11-19 06:49:21,652 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 33) no Hoare annotation was computed. [2022-11-19 06:49:21,652 INFO L899 garLoopResultBuilder]: For program point L24-1(lines 24 33) no Hoare annotation was computed. [2022-11-19 06:49:21,653 INFO L902 garLoopResultBuilder]: At program point L35(lines 20 36) the Hoare annotation is: true [2022-11-19 06:49:21,657 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-19 06:49:21,661 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 06:49:21,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:49:21 BoogieIcfgContainer [2022-11-19 06:49:21,681 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:49:21,683 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:49:21,683 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:49:21,683 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:49:21,684 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:49:20" (3/4) ... [2022-11-19 06:49:21,688 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 06:49:21,702 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-19 06:49:21,706 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-19 06:49:21,706 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 06:49:21,706 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 06:49:21,751 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc3b82a7-539c-4c0c-b42a-0cf67f59b566/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 06:49:21,751 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:49:21,751 INFO L158 Benchmark]: Toolchain (without parser) took 2179.52ms. Allocated memory is still 157.3MB. Free memory was 123.2MB in the beginning and 107.4MB in the end (delta: 15.8MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2022-11-19 06:49:21,752 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory was 68.4MB in the beginning and 68.3MB in the end (delta: 31.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:49:21,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.64ms. Allocated memory is still 157.3MB. Free memory was 122.9MB in the beginning and 133.2MB in the end (delta: -10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 06:49:21,753 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.44ms. Allocated memory is still 157.3MB. Free memory was 132.7MB in the beginning and 131.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:49:21,753 INFO L158 Benchmark]: Boogie Preprocessor took 25.66ms. Allocated memory is still 157.3MB. Free memory was 131.1MB in the beginning and 130.4MB in the end (delta: 716.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:49:21,753 INFO L158 Benchmark]: RCFGBuilder took 418.92ms. Allocated memory is still 157.3MB. Free memory was 130.4MB in the beginning and 117.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 06:49:21,754 INFO L158 Benchmark]: TraceAbstraction took 1290.55ms. Allocated memory is still 157.3MB. Free memory was 116.9MB in the beginning and 110.5MB in the end (delta: 6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 06:49:21,754 INFO L158 Benchmark]: Witness Printer took 68.12ms. Allocated memory is still 157.3MB. Free memory was 110.5MB in the beginning and 107.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:49:21,759 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory was 68.4MB in the beginning and 68.3MB in the end (delta: 31.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.64ms. Allocated memory is still 157.3MB. Free memory was 122.9MB in the beginning and 133.2MB in the end (delta: -10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.44ms. Allocated memory is still 157.3MB. Free memory was 132.7MB in the beginning and 131.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.66ms. Allocated memory is still 157.3MB. Free memory was 131.1MB in the beginning and 130.4MB in the end (delta: 716.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 418.92ms. Allocated memory is still 157.3MB. Free memory was 130.4MB in the beginning and 117.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1290.55ms. Allocated memory is still 157.3MB. Free memory was 116.9MB in the beginning and 110.5MB in the end (delta: 6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 68.12ms. Allocated memory is still 157.3MB. Free memory was 110.5MB in the beginning and 107.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 14 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 66 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-19 06:49:21,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc3b82a7-539c-4c0c-b42a-0cf67f59b566/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE