./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark26_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_29a6436b-c284-454d-8dc9-6a9027ffb48c/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a6436b-c284-454d-8dc9-6a9027ffb48c/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a6436b-c284-454d-8dc9-6a9027ffb48c/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a6436b-c284-454d-8dc9-6a9027ffb48c/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark26_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a6436b-c284-454d-8dc9-6a9027ffb48c/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a6436b-c284-454d-8dc9-6a9027ffb48c/bin/utaipan-g80aRyZoba --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 8e9d1a7d7f6e24fd57d73c4a5500d4641bd0405ce39a4f7870d35144d3da8b5e --- 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-b5237d8 [2022-11-22 01:54:46,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:54:46,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:54:46,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:54:46,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:54:46,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:54:46,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:54:46,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:54:46,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:54:46,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:54:46,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:54:46,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:54:46,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:54:46,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:54:46,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:54:46,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:54:46,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:54:46,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:54:46,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:54:46,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:54:46,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:54:46,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:54:46,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:54:46,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:54:46,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:54:46,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:54:46,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:54:46,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:54:46,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:54:46,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:54:46,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:54:46,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:54:46,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:54:46,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:54:46,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:54:46,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:54:46,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:54:46,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:54:46,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:54:46,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:54:46,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:54:46,542 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a6436b-c284-454d-8dc9-6a9027ffb48c/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 01:54:46,567 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:54:46,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:54:46,568 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:54:46,568 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:54:46,569 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:54:46,569 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:54:46,570 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:54:46,570 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:54:46,570 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:54:46,571 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:54:46,571 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:54:46,571 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:54:46,571 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:54:46,572 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:54:46,572 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:54:46,572 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:54:46,572 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:54:46,573 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:54:46,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:54:46,574 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:54:46,574 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:54:46,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:54:46,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:54:46,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:54:46,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:54:46,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:54:46,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:54:46,576 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:54:46,576 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:54:46,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:54:46,577 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:54:46,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:54:46,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:54:46,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:54:46,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:54:46,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:54:46,578 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:54:46,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:54:46,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:54:46,579 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:54:46,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:54:46,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:54:46,580 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:54:46,580 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_29a6436b-c284-454d-8dc9-6a9027ffb48c/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a6436b-c284-454d-8dc9-6a9027ffb48c/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e9d1a7d7f6e24fd57d73c4a5500d4641bd0405ce39a4f7870d35144d3da8b5e [2022-11-22 01:54:46,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:54:46,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:54:46,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:54:46,863 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:54:46,864 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:54:46,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a6436b-c284-454d-8dc9-6a9027ffb48c/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/loop-zilu/benchmark26_linear.i [2022-11-22 01:54:49,923 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:54:50,161 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:54:50,162 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a6436b-c284-454d-8dc9-6a9027ffb48c/sv-benchmarks/c/loop-zilu/benchmark26_linear.i [2022-11-22 01:54:50,169 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a6436b-c284-454d-8dc9-6a9027ffb48c/bin/utaipan-g80aRyZoba/data/3cf461e76/24c47bb6d70c4a1190dfebd4e5d779d0/FLAGeb5e71d32 [2022-11-22 01:54:50,185 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a6436b-c284-454d-8dc9-6a9027ffb48c/bin/utaipan-g80aRyZoba/data/3cf461e76/24c47bb6d70c4a1190dfebd4e5d779d0 [2022-11-22 01:54:50,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:54:50,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:54:50,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:54:50,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:54:50,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:54:50,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:54:50" (1/1) ... [2022-11-22 01:54:50,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20e9eb6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:50, skipping insertion in model container [2022-11-22 01:54:50,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:54:50" (1/1) ... [2022-11-22 01:54:50,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:54:50,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:54:50,372 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_29a6436b-c284-454d-8dc9-6a9027ffb48c/sv-benchmarks/c/loop-zilu/benchmark26_linear.i[868,881] [2022-11-22 01:54:50,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:54:50,390 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:54:50,402 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_29a6436b-c284-454d-8dc9-6a9027ffb48c/sv-benchmarks/c/loop-zilu/benchmark26_linear.i[868,881] [2022-11-22 01:54:50,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:54:50,420 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:54:50,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:50 WrapperNode [2022-11-22 01:54:50,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:54:50,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:54:50,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:54:50,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:54:50,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:50" (1/1) ... [2022-11-22 01:54:50,437 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:50" (1/1) ... [2022-11-22 01:54:50,454 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31 [2022-11-22 01:54:50,454 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:54:50,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:54:50,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:54:50,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:54:50,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:50" (1/1) ... [2022-11-22 01:54:50,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:50" (1/1) ... [2022-11-22 01:54:50,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:50" (1/1) ... [2022-11-22 01:54:50,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:50" (1/1) ... [2022-11-22 01:54:50,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:50" (1/1) ... [2022-11-22 01:54:50,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:50" (1/1) ... [2022-11-22 01:54:50,473 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:50" (1/1) ... [2022-11-22 01:54:50,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:50" (1/1) ... [2022-11-22 01:54:50,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:54:50,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:54:50,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:54:50,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:54:50,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:50" (1/1) ... [2022-11-22 01:54:50,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:54:50,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a6436b-c284-454d-8dc9-6a9027ffb48c/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:54:50,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a6436b-c284-454d-8dc9-6a9027ffb48c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:54:50,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a6436b-c284-454d-8dc9-6a9027ffb48c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:54:50,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:54:50,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:54:50,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:54:50,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:54:50,642 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:54:50,644 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:54:50,814 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:54:50,853 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:54:50,854 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:54:50,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:54:50 BoogieIcfgContainer [2022-11-22 01:54:50,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:54:50,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:54:50,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:54:50,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:54:50,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:54:50" (1/3) ... [2022-11-22 01:54:50,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1116e2d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:54:50, skipping insertion in model container [2022-11-22 01:54:50,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:50" (2/3) ... [2022-11-22 01:54:50,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1116e2d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:54:50, skipping insertion in model container [2022-11-22 01:54:50,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:54:50" (3/3) ... [2022-11-22 01:54:50,867 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark26_linear.i [2022-11-22 01:54:50,887 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:54:50,887 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-22 01:54:50,968 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:54:50,977 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;@2ebb070f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:54:50,978 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-22 01:54:50,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 8 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) [2022-11-22 01:54:50,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:54:50,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:54:50,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:54:50,991 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-22 01:54:51,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:54:51,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1973446, now seen corresponding path program 1 times [2022-11-22 01:54:51,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:54:51,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982910314] [2022-11-22 01:54:51,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:51,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:54:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:51,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:54:51,258 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:54:51,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982910314] [2022-11-22 01:54:51,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982910314] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:54:51,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:54:51,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:54:51,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360275209] [2022-11-22 01:54:51,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:54:51,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:54:51,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:54:51,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:54:51,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:54:51,312 INFO L87 Difference]: Start difference. First operand has 9 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 8 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) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:54:51,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:54:51,406 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2022-11-22 01:54:51,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:54:51,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-22 01:54:51,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:54:51,416 INFO L225 Difference]: With dead ends: 12 [2022-11-22 01:54:51,417 INFO L226 Difference]: Without dead ends: 7 [2022-11-22 01:54:51,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:54:51,424 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:54:51,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 0 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:54:51,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-11-22 01:54:51,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2022-11-22 01:54:51,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2022-11-22 01:54:51,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2022-11-22 01:54:51,460 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2022-11-22 01:54:51,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:54:51,462 INFO L495 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2022-11-22 01:54:51,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:54:51,463 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2022-11-22 01:54:51,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:54:51,463 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:54:51,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:54:51,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:54:51,464 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-22 01:54:51,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:54:51,465 INFO L85 PathProgramCache]: Analyzing trace with hash 61176876, now seen corresponding path program 1 times [2022-11-22 01:54:51,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:54:51,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939351437] [2022-11-22 01:54:51,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:51,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:54:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:51,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:54:51,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:54:51,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939351437] [2022-11-22 01:54:51,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939351437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:54:51,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:54:51,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:54:51,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075413537] [2022-11-22 01:54:51,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:54:51,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:54:51,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:54:51,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:54:51,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:54:51,552 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2022-11-22 01:54:51,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:54:51,563 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2022-11-22 01:54:51,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:54:51,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 [2022-11-22 01:54:51,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:54:51,564 INFO L225 Difference]: With dead ends: 6 [2022-11-22 01:54:51,564 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 01:54:51,565 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 [2022-11-22 01:54:51,567 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 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 [2022-11-22 01:54:51,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:54:51,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 01:54:51,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 01:54:51,569 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) [2022-11-22 01:54:51,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 01:54:51,570 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2022-11-22 01:54:51,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:54:51,615 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 01:54:51,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2022-11-22 01:54:51,616 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 01:54:51,616 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 01:54:51,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-22 01:54:51,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-22 01:54:51,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:54:51,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 01:54:51,677 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-22 01:54:51,677 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 01:54:51,686 INFO L895 garLoopResultBuilder]: At program point L27(lines 19 28) the Hoare annotation is: (<= |ULTIMATE.start_main_~y~0#1| 2147483647) [2022-11-22 01:54:51,686 INFO L895 garLoopResultBuilder]: At program point L23-2(lines 23 25) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2022-11-22 01:54:51,687 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-22 01:54:51,687 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 01:54:51,687 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2022-11-22 01:54:51,687 INFO L899 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2022-11-22 01:54:51,687 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2022-11-22 01:54:51,691 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-22 01:54:51,693 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:54:51,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:54:51 BoogieIcfgContainer [2022-11-22 01:54:51,709 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:54:51,710 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:54:51,710 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:54:51,710 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:54:51,711 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:54:50" (3/4) ... [2022-11-22 01:54:51,713 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 01:54:51,722 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-22 01:54:51,723 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-22 01:54:51,723 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-22 01:54:51,724 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 01:54:51,767 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a6436b-c284-454d-8dc9-6a9027ffb48c/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:54:51,768 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:54:51,768 INFO L158 Benchmark]: Toolchain (without parser) took 1578.47ms. Allocated memory is still 184.5MB. Free memory was 153.3MB in the beginning and 150.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2022-11-22 01:54:51,768 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 125.8MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:54:51,769 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.63ms. Allocated memory is still 184.5MB. Free memory was 153.3MB in the beginning and 143.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 01:54:51,769 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.58ms. Allocated memory is still 184.5MB. Free memory was 143.4MB in the beginning and 141.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:54:51,769 INFO L158 Benchmark]: Boogie Preprocessor took 20.72ms. Allocated memory is still 184.5MB. Free memory was 141.8MB in the beginning and 140.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:54:51,770 INFO L158 Benchmark]: RCFGBuilder took 380.48ms. Allocated memory is still 184.5MB. Free memory was 140.8MB in the beginning and 130.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 01:54:51,770 INFO L158 Benchmark]: TraceAbstraction took 849.46ms. Allocated memory is still 184.5MB. Free memory was 129.8MB in the beginning and 153.4MB in the end (delta: -23.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:54:51,771 INFO L158 Benchmark]: Witness Printer took 58.06ms. Allocated memory is still 184.5MB. Free memory was 153.4MB in the beginning and 150.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:54:51,772 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 125.8MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 229.63ms. Allocated memory is still 184.5MB. Free memory was 153.3MB in the beginning and 143.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.58ms. Allocated memory is still 184.5MB. Free memory was 143.4MB in the beginning and 141.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.72ms. Allocated memory is still 184.5MB. Free memory was 141.8MB in the beginning and 140.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 380.48ms. Allocated memory is still 184.5MB. Free memory was 140.8MB in the beginning and 130.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 849.46ms. Allocated memory is still 184.5MB. Free memory was 129.8MB in the beginning and 153.4MB in the end (delta: -23.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 58.06ms. Allocated memory is still 184.5MB. Free memory was 153.4MB in the beginning and 150.3MB 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: 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, 9 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 12 HoareAnnotationTreeSize, 2 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 2 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: y <= 2147483647 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 0 <= x + 2147483648 && y <= 2147483647 RESULT: Ultimate proved your program to be correct! [2022-11-22 01:54:51,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a6436b-c284-454d-8dc9-6a9027ffb48c/bin/utaipan-g80aRyZoba/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