./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/bin/utaipan-Q6hlc19bkW --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 27e2c506f8c4790ab21ed41c19bd1ea2839907b43d1ff7cacbbc276ad919ab4e --- 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-4e7fbc6 [2022-11-23 15:52:21,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:52:21,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:52:21,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:52:21,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:52:21,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:52:21,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:52:21,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:52:21,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:52:21,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:52:21,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:52:21,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:52:21,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:52:21,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:52:21,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:52:21,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:52:21,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:52:21,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:52:21,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:52:21,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:52:21,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:52:21,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:52:21,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:52:21,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:52:21,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:52:21,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:52:21,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:52:21,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:52:21,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:52:21,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:52:21,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:52:21,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:52:21,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:52:21,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:52:21,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:52:21,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:52:21,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:52:21,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:52:21,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:52:21,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:52:21,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:52:21,593 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 15:52:21,633 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:52:21,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:52:21,634 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:52:21,634 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:52:21,635 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:52:21,636 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:52:21,636 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:52:21,636 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:52:21,637 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:52:21,637 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:52:21,638 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:52:21,638 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:52:21,638 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:52:21,639 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:52:21,639 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:52:21,639 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:52:21,640 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:52:21,640 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:52:21,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:52:21,641 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:52:21,641 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:52:21,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:52:21,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:52:21,642 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:52:21,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:52:21,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:52:21,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:52:21,643 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:52:21,643 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:52:21,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:52:21,644 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:52:21,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:52:21,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:52:21,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:52:21,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:52:21,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:52:21,646 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:52:21,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:52:21,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:52:21,646 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:52:21,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:52:21,647 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:52:21,647 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:52:21,647 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_83d34456-0495-45fb-82fa-1ffdf5343267/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27e2c506f8c4790ab21ed41c19bd1ea2839907b43d1ff7cacbbc276ad919ab4e [2022-11-23 15:52:21,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:52:21,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:52:22,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:52:22,005 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:52:22,005 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:52:22,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c [2022-11-23 15:52:25,009 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:52:25,210 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:52:25,210 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c [2022-11-23 15:52:25,217 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/bin/utaipan-Q6hlc19bkW/data/925bbb114/d015616fba624084aef853991d3064e5/FLAG5ffa7a0ad [2022-11-23 15:52:25,233 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/bin/utaipan-Q6hlc19bkW/data/925bbb114/d015616fba624084aef853991d3064e5 [2022-11-23 15:52:25,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:52:25,238 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:52:25,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:52:25,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:52:25,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:52:25,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:52:25" (1/1) ... [2022-11-23 15:52:25,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29182279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:25, skipping insertion in model container [2022-11-23 15:52:25,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:52:25" (1/1) ... [2022-11-23 15:52:25,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:52:25,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:52:25,435 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c[1355,1368] [2022-11-23 15:52:25,444 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c[2394,2407] [2022-11-23 15:52:25,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:52:25,460 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:52:25,478 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c[1355,1368] [2022-11-23 15:52:25,483 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c[2394,2407] [2022-11-23 15:52:25,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:52:25,502 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:52:25,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:25 WrapperNode [2022-11-23 15:52:25,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:52:25,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:52:25,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:52:25,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:52:25,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:25" (1/1) ... [2022-11-23 15:52:25,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:25" (1/1) ... [2022-11-23 15:52:25,541 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 124 [2022-11-23 15:52:25,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:52:25,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:52:25,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:52:25,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:52:25,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:25" (1/1) ... [2022-11-23 15:52:25,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:25" (1/1) ... [2022-11-23 15:52:25,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:25" (1/1) ... [2022-11-23 15:52:25,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:25" (1/1) ... [2022-11-23 15:52:25,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:25" (1/1) ... [2022-11-23 15:52:25,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:25" (1/1) ... [2022-11-23 15:52:25,565 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:25" (1/1) ... [2022-11-23 15:52:25,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:25" (1/1) ... [2022-11-23 15:52:25,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:52:25,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:52:25,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:52:25,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:52:25,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:25" (1/1) ... [2022-11-23 15:52:25,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:52:25,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:52:25,611 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:52:25,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:52:25,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:52:25,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:52:25,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:52:25,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:52:25,743 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:52:25,746 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:52:25,955 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:52:25,984 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:52:25,984 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:52:25,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:52:25 BoogieIcfgContainer [2022-11-23 15:52:25,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:52:25,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:52:25,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:52:25,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:52:25,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:52:25" (1/3) ... [2022-11-23 15:52:25,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d904b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:52:25, skipping insertion in model container [2022-11-23 15:52:25,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:25" (2/3) ... [2022-11-23 15:52:25,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d904b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:52:25, skipping insertion in model container [2022-11-23 15:52:25,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:52:25" (3/3) ... [2022-11-23 15:52:25,997 INFO L112 eAbstractionObserver]: Analyzing ICFG filter1.c.v+lhb-reducer.c [2022-11-23 15:52:26,026 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:52:26,027 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 15:52:26,080 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:52:26,087 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;@405b8fe5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:52:26,087 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 15:52:26,092 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 26 states have internal predecessors, (40), 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) [2022-11-23 15:52:26,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 15:52:26,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:52:26,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:52:26,101 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:52:26,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:52:26,107 INFO L85 PathProgramCache]: Analyzing trace with hash -687471139, now seen corresponding path program 1 times [2022-11-23 15:52:26,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:52:26,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339302535] [2022-11-23 15:52:26,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:52:26,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:52:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:52:26,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:52:26,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:52:26,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339302535] [2022-11-23 15:52:26,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339302535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:52:26,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:52:26,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 15:52:26,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730341393] [2022-11-23 15:52:26,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:52:26,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:52:26,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:52:26,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:52:26,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:52:26,436 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 26 states have internal predecessors, (40), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-11-23 15:52:26,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:52:26,493 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions. [2022-11-23 15:52:26,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:52:26,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2022-11-23 15:52:26,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:52:26,506 INFO L225 Difference]: With dead ends: 36 [2022-11-23 15:52:26,506 INFO L226 Difference]: Without dead ends: 28 [2022-11-23 15:52:26,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:52:26,513 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 8 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:52:26,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 44 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:52:26,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-23 15:52:26,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-23 15:52:26,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 27 states have internal predecessors, (34), 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) [2022-11-23 15:52:26,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2022-11-23 15:52:26,553 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 11 [2022-11-23 15:52:26,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:52:26,553 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2022-11-23 15:52:26,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-11-23 15:52:26,554 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-11-23 15:52:26,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 15:52:26,555 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:52:26,555 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:52:26,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:52:26,556 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:52:26,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:52:26,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1207680953, now seen corresponding path program 1 times [2022-11-23 15:52:26,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:52:26,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234426715] [2022-11-23 15:52:26,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:52:26,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:52:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:52:26,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:52:26,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:52:26,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234426715] [2022-11-23 15:52:26,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234426715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:52:26,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:52:26,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:52:26,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766952077] [2022-11-23 15:52:26,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:52:26,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:52:26,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:52:26,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:52:26,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:52:26,640 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-11-23 15:52:26,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:52:26,663 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2022-11-23 15:52:26,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:52:26,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2022-11-23 15:52:26,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:52:26,665 INFO L225 Difference]: With dead ends: 44 [2022-11-23 15:52:26,665 INFO L226 Difference]: Without dead ends: 27 [2022-11-23 15:52:26,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:52:26,668 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:52:26,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:52:26,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-23 15:52:26,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-23 15:52:26,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.24) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:52:26,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-11-23 15:52:26,675 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 22 [2022-11-23 15:52:26,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:52:26,676 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-11-23 15:52:26,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-11-23 15:52:26,676 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-11-23 15:52:26,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 15:52:26,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:52:26,677 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:52:26,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:52:26,678 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:52:26,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:52:26,679 INFO L85 PathProgramCache]: Analyzing trace with hash -312760012, now seen corresponding path program 1 times [2022-11-23 15:52:26,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:52:26,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940300778] [2022-11-23 15:52:26,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:52:26,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:52:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:52:26,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:52:26,890 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:52:26,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940300778] [2022-11-23 15:52:26,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940300778] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:52:26,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319722269] [2022-11-23 15:52:26,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:52:26,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:52:26,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:52:26,910 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:52:26,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:52:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:52:27,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:52:27,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:52:27,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:52:27,158 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:52:27,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319722269] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:52:27,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:52:27,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2022-11-23 15:52:27,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24889771] [2022-11-23 15:52:27,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:52:27,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:52:27,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:52:27,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:52:27,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:52:27,161 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-11-23 15:52:27,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:52:27,189 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2022-11-23 15:52:27,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:52:27,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2022-11-23 15:52:27,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:52:27,191 INFO L225 Difference]: With dead ends: 27 [2022-11-23 15:52:27,191 INFO L226 Difference]: Without dead ends: 26 [2022-11-23 15:52:27,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:52:27,193 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 16 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:52:27,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 30 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:52:27,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-23 15:52:27,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-23 15:52:27,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 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) [2022-11-23 15:52:27,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2022-11-23 15:52:27,200 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 22 [2022-11-23 15:52:27,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:52:27,201 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2022-11-23 15:52:27,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-11-23 15:52:27,201 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2022-11-23 15:52:27,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-23 15:52:27,202 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:52:27,202 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:52:27,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:52:27,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:52:27,409 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:52:27,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:52:27,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1105625712, now seen corresponding path program 1 times [2022-11-23 15:52:27,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:52:27,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349998178] [2022-11-23 15:52:27,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:52:27,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:52:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:52:27,470 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:52:27,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:52:27,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349998178] [2022-11-23 15:52:27,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349998178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:52:27,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:52:27,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:52:27,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303048582] [2022-11-23 15:52:27,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:52:27,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:52:27,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:52:27,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:52:27,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:52:27,474 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-11-23 15:52:27,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:52:27,491 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2022-11-23 15:52:27,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:52:27,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 23 [2022-11-23 15:52:27,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:52:27,492 INFO L225 Difference]: With dead ends: 26 [2022-11-23 15:52:27,493 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:52:27,493 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 [2022-11-23 15:52:27,495 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:52:27,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 20 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:52:27,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:52:27,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:52:27,497 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) [2022-11-23 15:52:27,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:52:27,497 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2022-11-23 15:52:27,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:52:27,498 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:52:27,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-11-23 15:52:27,498 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:52:27,499 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:52:27,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 15:52:27,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 15:52:27,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:52:27,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 15:52:27,557 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 121) no Hoare annotation was computed. [2022-11-23 15:52:27,557 INFO L899 garLoopResultBuilder]: For program point L56(lines 56 156) no Hoare annotation was computed. [2022-11-23 15:52:27,557 INFO L895 garLoopResultBuilder]: At program point L143(lines 77 144) the Hoare annotation is: (or (and (<= |ULTIMATE.start_main_~main__i~0#1| 1000000) (<= 1 |ULTIMATE.start_main_~main__i~0#1|)) (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 0)) [2022-11-23 15:52:27,557 INFO L899 garLoopResultBuilder]: For program point L77(lines 77 144) no Hoare annotation was computed. [2022-11-23 15:52:27,558 INFO L895 garLoopResultBuilder]: At program point L168(lines 45 169) the Hoare annotation is: (= |ULTIMATE.start_main_~main__i~0#1| 0) [2022-11-23 15:52:27,558 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 113) no Hoare annotation was computed. [2022-11-23 15:52:27,558 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 185) no Hoare annotation was computed. [2022-11-23 15:52:27,558 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 70) no Hoare annotation was computed. [2022-11-23 15:52:27,558 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 15:52:27,559 INFO L902 garLoopResultBuilder]: At program point L148(lines 75 149) the Hoare annotation is: true [2022-11-23 15:52:27,559 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 169) no Hoare annotation was computed. [2022-11-23 15:52:27,559 INFO L899 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2022-11-23 15:52:27,559 INFO L899 garLoopResultBuilder]: For program point L70-1(line 70) no Hoare annotation was computed. [2022-11-23 15:52:27,559 INFO L902 garLoopResultBuilder]: At program point L194(lines 17 196) the Hoare annotation is: true [2022-11-23 15:52:27,559 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 70) no Hoare annotation was computed. [2022-11-23 15:52:27,560 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 15:52:27,560 INFO L899 garLoopResultBuilder]: For program point L91(lines 91 126) no Hoare annotation was computed. [2022-11-23 15:52:27,560 INFO L895 garLoopResultBuilder]: At program point L120(lines 93 121) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__i~0#1| 1000000) (<= 1 |ULTIMATE.start_main_~main__i~0#1|)) [2022-11-23 15:52:27,560 INFO L895 garLoopResultBuilder]: At program point L112(lines 62 156) the Hoare annotation is: (or (= |ULTIMATE.start_main_~main__i~0#1| 0) (and (<= |ULTIMATE.start_main_~main__i~0#1| 1000000) (<= 1 |ULTIMATE.start_main_~main__i~0#1|))) [2022-11-23 15:52:27,560 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 149) no Hoare annotation was computed. [2022-11-23 15:52:27,561 INFO L899 garLoopResultBuilder]: For program point L71(lines 71 155) no Hoare annotation was computed. [2022-11-23 15:52:27,561 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 190) no Hoare annotation was computed. [2022-11-23 15:52:27,561 INFO L895 garLoopResultBuilder]: At program point L125(lines 91 126) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__i~0#1| 1000000) (<= 1 |ULTIMATE.start_main_~main__i~0#1|)) [2022-11-23 15:52:27,561 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 195) no Hoare annotation was computed. [2022-11-23 15:52:27,561 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 164) no Hoare annotation was computed. [2022-11-23 15:52:27,561 INFO L895 garLoopResultBuilder]: At program point L35(lines 35 180) the Hoare annotation is: (= |ULTIMATE.start_main_~main__i~0#1| 0) [2022-11-23 15:52:27,562 INFO L895 garLoopResultBuilder]: At program point L163(lines 47 164) the Hoare annotation is: (= |ULTIMATE.start_main_~main__i~0#1| 0) [2022-11-23 15:52:27,565 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-23 15:52:27,567 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:52:27,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:52:27 BoogieIcfgContainer [2022-11-23 15:52:27,583 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:52:27,584 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:52:27,584 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:52:27,584 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:52:27,585 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:52:25" (3/4) ... [2022-11-23 15:52:27,588 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 15:52:27,599 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-23 15:52:27,599 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-23 15:52:27,599 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 15:52:27,600 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:52:27,643 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:52:27,643 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:52:27,644 INFO L158 Benchmark]: Toolchain (without parser) took 2405.98ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 75.3MB in the beginning and 117.7MB in the end (delta: -42.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:52:27,644 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 119.5MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:52:27,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.89ms. Allocated memory is still 119.5MB. Free memory was 75.2MB in the beginning and 63.6MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 15:52:27,645 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.21ms. Allocated memory is still 119.5MB. Free memory was 63.6MB in the beginning and 61.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:52:27,645 INFO L158 Benchmark]: Boogie Preprocessor took 26.68ms. Allocated memory is still 119.5MB. Free memory was 61.8MB in the beginning and 60.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:52:27,645 INFO L158 Benchmark]: RCFGBuilder took 417.73ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 60.7MB in the beginning and 121.4MB in the end (delta: -60.6MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2022-11-23 15:52:27,646 INFO L158 Benchmark]: TraceAbstraction took 1593.41ms. Allocated memory is still 151.0MB. Free memory was 120.5MB in the beginning and 120.9MB in the end (delta: -406.5kB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. [2022-11-23 15:52:27,646 INFO L158 Benchmark]: Witness Printer took 59.40ms. Allocated memory is still 151.0MB. Free memory was 120.9MB in the beginning and 117.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:52:27,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 119.5MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.89ms. Allocated memory is still 119.5MB. Free memory was 75.2MB in the beginning and 63.6MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.21ms. Allocated memory is still 119.5MB. Free memory was 63.6MB in the beginning and 61.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.68ms. Allocated memory is still 119.5MB. Free memory was 61.8MB in the beginning and 60.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 417.73ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 60.7MB in the beginning and 121.4MB in the end (delta: -60.6MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1593.41ms. Allocated memory is still 151.0MB. Free memory was 120.5MB in the beginning and 120.9MB in the end (delta: -406.5kB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. * Witness Printer took 59.40ms. Allocated memory is still 151.0MB. Free memory was 120.9MB in the beginning and 117.7MB 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: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: 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, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 146 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 98 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=1, InterpolantAutomatonStates: 13, 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, 9 LocationsWithAnnotation, 9 PreInvPairs, 18 NumberOfFragments, 47 HoareAnnotationTreeSize, 9 FomulaSimplifications, 28 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 221 SizeOfPredicates, 0 NumberOfNonLiveVariables, 112 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 7/9 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 2 specifications checked. All of them hold - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: main__i == 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: main__i == 0 || (main__i <= 1000000 && 1 <= main__i) - InvariantResult [Line: 91]: Loop Invariant Derived loop invariant: main__i <= 1000000 && 1 <= main__i - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: main__i == 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: main__i <= 1000000 && 1 <= main__i - InvariantResult [Line: 77]: Loop Invariant Derived loop invariant: (main__i <= 1000000 && 1 <= main__i) || main____CPAchecker_TMP_0 == 0 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: main__i == 0 RESULT: Ultimate proved your program to be correct! [2022-11-23 15:52:27,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d34456-0495-45fb-82fa-1ffdf5343267/bin/utaipan-Q6hlc19bkW/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