./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-examples/standard_strcmp_ground.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-examples/standard_strcmp_ground.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh --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 c802cbda9e8bed6a313e86b45d5d1f15426dd1417288149156d2bae000d97c78 --- 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-2329fc7 [2022-12-14 14:12:56,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:12:56,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:12:56,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:12:56,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:12:56,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:12:56,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:12:56,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:12:56,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:12:56,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:12:56,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:12:56,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:12:56,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:12:56,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:12:56,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:12:56,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:12:56,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:12:56,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:12:56,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:12:56,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:12:56,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:12:56,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:12:56,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:12:56,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:12:56,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:12:56,417 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:12:56,417 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:12:56,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:12:56,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:12:56,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:12:56,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:12:56,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:12:56,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:12:56,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:12:56,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:12:56,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:12:56,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:12:56,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:12:56,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:12:56,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:12:56,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:12:56,424 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 14:12:56,446 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:12:56,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:12:56,446 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:12:56,446 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:12:56,447 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:12:56,447 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:12:56,447 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:12:56,452 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:12:56,452 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:12:56,452 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:12:56,452 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:12:56,452 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:12:56,452 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:12:56,452 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:12:56,453 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:12:56,453 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:12:56,453 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:12:56,453 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:12:56,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:12:56,454 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:12:56,454 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 14:12:56,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:12:56,454 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:12:56,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:12:56,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:12:56,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:12:56,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:12:56,455 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 14:12:56,455 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:12:56,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:12:56,456 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:12:56,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:12:56,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:12:56,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:12:56,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:12:56,456 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:12:56,457 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:12:56,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:12:56,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:12:56,457 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:12:56,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:12:56,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:12:56,457 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:12:56,458 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_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c802cbda9e8bed6a313e86b45d5d1f15426dd1417288149156d2bae000d97c78 [2022-12-14 14:12:56,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:12:56,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:12:56,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:12:56,641 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:12:56,641 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:12:56,643 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/array-examples/standard_strcmp_ground.i [2022-12-14 14:12:59,244 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:12:59,359 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:12:59,359 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/sv-benchmarks/c/array-examples/standard_strcmp_ground.i [2022-12-14 14:12:59,363 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/data/b9446b6f5/aa0daf81ef3448a6814d47194a3de433/FLAGd5b382029 [2022-12-14 14:12:59,373 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/data/b9446b6f5/aa0daf81ef3448a6814d47194a3de433 [2022-12-14 14:12:59,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:12:59,376 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:12:59,377 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:12:59,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:12:59,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:12:59,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:12:59" (1/1) ... [2022-12-14 14:12:59,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4678fb36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:59, skipping insertion in model container [2022-12-14 14:12:59,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:12:59" (1/1) ... [2022-12-14 14:12:59,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:12:59,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:12:59,494 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_3e8c204b-a8ac-4032-a3e9-43ba92485656/sv-benchmarks/c/array-examples/standard_strcmp_ground.i[815,828] [2022-12-14 14:12:59,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:12:59,513 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:12:59,522 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_3e8c204b-a8ac-4032-a3e9-43ba92485656/sv-benchmarks/c/array-examples/standard_strcmp_ground.i[815,828] [2022-12-14 14:12:59,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:12:59,541 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:12:59,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:59 WrapperNode [2022-12-14 14:12:59,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:12:59,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:12:59,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:12:59,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:12:59,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:59" (1/1) ... [2022-12-14 14:12:59,553 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:59" (1/1) ... [2022-12-14 14:12:59,566 INFO L138 Inliner]: procedures = 17, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 84 [2022-12-14 14:12:59,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:12:59,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:12:59,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:12:59,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:12:59,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:59" (1/1) ... [2022-12-14 14:12:59,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:59" (1/1) ... [2022-12-14 14:12:59,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:59" (1/1) ... [2022-12-14 14:12:59,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:59" (1/1) ... [2022-12-14 14:12:59,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:59" (1/1) ... [2022-12-14 14:12:59,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:59" (1/1) ... [2022-12-14 14:12:59,584 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:59" (1/1) ... [2022-12-14 14:12:59,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:59" (1/1) ... [2022-12-14 14:12:59,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:12:59,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:12:59,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:12:59,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:12:59,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:59" (1/1) ... [2022-12-14 14:12:59,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:12:59,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:12:59,612 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:12:59,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:12:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:12:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:12:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:12:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:12:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:12:59,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:12:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 14:12:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:12:59,703 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:12:59,705 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:12:59,813 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:12:59,848 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:12:59,849 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 14:12:59,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:12:59 BoogieIcfgContainer [2022-12-14 14:12:59,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:12:59,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:12:59,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:12:59,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:12:59,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:12:59" (1/3) ... [2022-12-14 14:12:59,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9d9713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:12:59, skipping insertion in model container [2022-12-14 14:12:59,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:59" (2/3) ... [2022-12-14 14:12:59,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9d9713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:12:59, skipping insertion in model container [2022-12-14 14:12:59,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:12:59" (3/3) ... [2022-12-14 14:12:59,858 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_strcmp_ground.i [2022-12-14 14:12:59,875 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:12:59,875 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 14:12:59,915 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:12:59,920 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;@6208483d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:12:59,920 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-14 14:12:59,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:12:59,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 14:12:59,928 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:12:59,929 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 14:12:59,929 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:12:59,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:12:59,933 INFO L85 PathProgramCache]: Analyzing trace with hash 114093, now seen corresponding path program 1 times [2022-12-14 14:12:59,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:12:59,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115176529] [2022-12-14 14:12:59,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:12:59,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:13:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:00,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:00,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:13:00,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115176529] [2022-12-14 14:13:00,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115176529] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:13:00,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:13:00,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:13:00,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38779877] [2022-12-14 14:13:00,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:13:00,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:13:00,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:13:00,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:13:00,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:13:00,213 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-12-14 14:13:00,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:00,273 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2022-12-14 14:13:00,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:13:00,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2022-12-14 14:13:00,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:00,282 INFO L225 Difference]: With dead ends: 41 [2022-12-14 14:13:00,283 INFO L226 Difference]: Without dead ends: 22 [2022-12-14 14:13:00,286 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 [2022-12-14 14:13:00,289 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 3 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:00,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 47 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:13:00,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-12-14 14:13:00,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-12-14 14:13:00,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.5625) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:00,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-12-14 14:13:00,317 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 3 [2022-12-14 14:13:00,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:00,318 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-12-14 14:13:00,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-12-14 14:13:00,318 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-12-14 14:13:00,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 14:13:00,319 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:00,319 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-12-14 14:13:00,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:13:00,319 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:13:00,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:00,320 INFO L85 PathProgramCache]: Analyzing trace with hash -895974949, now seen corresponding path program 1 times [2022-12-14 14:13:00,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:13:00,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446074941] [2022-12-14 14:13:00,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:00,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:13:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:00,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:00,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:13:00,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446074941] [2022-12-14 14:13:00,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446074941] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:13:00,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070155883] [2022-12-14 14:13:00,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:00,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:00,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:13:00,461 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:13:00,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 14:13:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:00,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 14:13:00,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:00,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:00,575 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:13:00,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070155883] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:13:00,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 14:13:00,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2022-12-14 14:13:00,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221586774] [2022-12-14 14:13:00,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:13:00,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:13:00,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:13:00,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:13:00,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-14 14:13:00,578 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 5 states, 4 states have (on average 1.5) 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) [2022-12-14 14:13:00,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:00,603 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2022-12-14 14:13:00,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:13:00,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) 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) Word has length 6 [2022-12-14 14:13:00,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:00,604 INFO L225 Difference]: With dead ends: 22 [2022-12-14 14:13:00,604 INFO L226 Difference]: Without dead ends: 21 [2022-12-14 14:13:00,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-14 14:13:00,606 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 22 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:00,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 26 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:13:00,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-12-14 14:13:00,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-12-14 14:13:00,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.5) internal successors, (24), 20 states have internal predecessors, (24), 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) [2022-12-14 14:13:00,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2022-12-14 14:13:00,611 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 6 [2022-12-14 14:13:00,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:00,612 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2022-12-14 14:13:00,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) 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) [2022-12-14 14:13:00,612 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-12-14 14:13:00,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 14:13:00,612 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:00,612 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2022-12-14 14:13:00,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:13:00,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:00,815 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:13:00,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:00,818 INFO L85 PathProgramCache]: Analyzing trace with hash -2005419597, now seen corresponding path program 1 times [2022-12-14 14:13:00,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:13:00,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315540613] [2022-12-14 14:13:00,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:00,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:13:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:00,999 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:13:00,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:13:00,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315540613] [2022-12-14 14:13:01,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315540613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:13:01,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:13:01,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:13:01,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63778421] [2022-12-14 14:13:01,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:13:01,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:13:01,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:13:01,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:13:01,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:13:01,002 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:01,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:01,019 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2022-12-14 14:13:01,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:13:01,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 14:13:01,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:01,020 INFO L225 Difference]: With dead ends: 21 [2022-12-14 14:13:01,020 INFO L226 Difference]: Without dead ends: 20 [2022-12-14 14:13:01,021 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 [2022-12-14 14:13:01,022 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:01,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:13:01,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-12-14 14:13:01,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-12-14 14:13:01,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.5) internal successors, (21), 17 states have internal predecessors, (21), 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) [2022-12-14 14:13:01,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2022-12-14 14:13:01,025 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 7 [2022-12-14 14:13:01,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:01,026 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-12-14 14:13:01,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:01,026 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2022-12-14 14:13:01,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 14:13:01,026 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:01,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:13:01,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:13:01,027 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:13:01,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:01,028 INFO L85 PathProgramCache]: Analyzing trace with hash -2038152414, now seen corresponding path program 1 times [2022-12-14 14:13:01,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:13:01,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719746121] [2022-12-14 14:13:01,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:01,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:13:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:01,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:01,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:13:01,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719746121] [2022-12-14 14:13:01,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719746121] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:13:01,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714457935] [2022-12-14 14:13:01,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:01,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:01,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:13:01,088 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:13:01,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 14:13:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:01,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 14:13:01,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:01,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:13:01,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:13:01,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [714457935] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:13:01,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 14:13:01,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2022-12-14 14:13:01,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603411701] [2022-12-14 14:13:01,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:13:01,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:13:01,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:13:01,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:13:01,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:13:01,147 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:01,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:01,162 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2022-12-14 14:13:01,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:13:01,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 14:13:01,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:01,163 INFO L225 Difference]: With dead ends: 18 [2022-12-14 14:13:01,163 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 14:13:01,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:13:01,165 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 11 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:01,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:13:01,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 14:13:01,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-14 14:13:01,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 16 states have internal predecessors, (20), 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) [2022-12-14 14:13:01,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2022-12-14 14:13:01,168 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 8 [2022-12-14 14:13:01,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:01,168 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2022-12-14 14:13:01,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:01,169 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2022-12-14 14:13:01,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 14:13:01,169 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:01,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:13:01,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 14:13:01,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:01,370 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:13:01,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:01,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1241784674, now seen corresponding path program 1 times [2022-12-14 14:13:01,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:13:01,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604998955] [2022-12-14 14:13:01,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:01,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:13:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:01,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:01,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:13:01,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604998955] [2022-12-14 14:13:01,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604998955] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:13:01,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122548342] [2022-12-14 14:13:01,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:01,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:01,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:13:01,438 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:13:01,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 14:13:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:01,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 14:13:01,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:01,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:13:01,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:13:01,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122548342] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:13:01,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 14:13:01,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2022-12-14 14:13:01,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262290757] [2022-12-14 14:13:01,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:13:01,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:13:01,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:13:01,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:13:01,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:13:01,504 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:01,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:01,527 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2022-12-14 14:13:01,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:13:01,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 14:13:01,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:01,528 INFO L225 Difference]: With dead ends: 36 [2022-12-14 14:13:01,528 INFO L226 Difference]: Without dead ends: 28 [2022-12-14 14:13:01,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:13:01,530 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 8 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:01,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 21 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:13:01,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-12-14 14:13:01,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 21. [2022-12-14 14:13:01,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:01,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2022-12-14 14:13:01,535 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 9 [2022-12-14 14:13:01,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:01,535 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2022-12-14 14:13:01,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:01,536 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2022-12-14 14:13:01,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 14:13:01,536 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:01,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:13:01,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 14:13:01,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:01,737 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:13:01,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:01,738 INFO L85 PathProgramCache]: Analyzing trace with hash -647432852, now seen corresponding path program 1 times [2022-12-14 14:13:01,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:13:01,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898207001] [2022-12-14 14:13:01,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:01,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:13:01,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:01,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:01,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:13:01,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898207001] [2022-12-14 14:13:01,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898207001] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:13:01,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869021985] [2022-12-14 14:13:01,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:01,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:01,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:13:01,838 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:13:01,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 14:13:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:01,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 14:13:01,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:01,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:01,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:01,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:01,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869021985] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:01,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1631579539] [2022-12-14 14:13:01,955 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-12-14 14:13:01,955 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:13:01,959 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:13:01,964 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:13:01,964 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:13:02,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:02,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:02,057 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-12-14 14:13:02,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 53 [2022-12-14 14:13:02,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:02,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:02,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2022-12-14 14:13:02,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:02,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:02,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2022-12-14 14:13:02,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:02,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:02,268 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:02,269 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:02,269 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:02,325 INFO L321 Elim1Store]: treesize reduction 224, result has 16.7 percent of original size [2022-12-14 14:13:02,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 281 treesize of output 272 [2022-12-14 14:13:02,729 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:02,738 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 14:13:02,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 14:13:02,774 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:02,784 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 14:13:02,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 14:13:02,824 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:13:03,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1631579539] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:13:03,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:13:03,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 4, 4] total 15 [2022-12-14 14:13:03,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156410154] [2022-12-14 14:13:03,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:13:03,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 14:13:03,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:13:03,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 14:13:03,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-12-14 14:13:03,101 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 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) [2022-12-14 14:13:03,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:03,162 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-12-14 14:13:03,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:13:03,163 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 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 [2022-12-14 14:13:03,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:03,163 INFO L225 Difference]: With dead ends: 28 [2022-12-14 14:13:03,163 INFO L226 Difference]: Without dead ends: 21 [2022-12-14 14:13:03,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-12-14 14:13:03,164 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 19 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:03,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 25 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:13:03,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-12-14 14:13:03,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-12-14 14:13:03,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 20 states have internal predecessors, (24), 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) [2022-12-14 14:13:03,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2022-12-14 14:13:03,167 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2022-12-14 14:13:03,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:03,167 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2022-12-14 14:13:03,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 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) [2022-12-14 14:13:03,167 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-12-14 14:13:03,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 14:13:03,168 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:03,168 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:13:03,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 14:13:03,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 14:13:03,369 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:13:03,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:03,370 INFO L85 PathProgramCache]: Analyzing trace with hash 2123131593, now seen corresponding path program 1 times [2022-12-14 14:13:03,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:13:03,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724537997] [2022-12-14 14:13:03,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:03,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:13:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:03,527 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 14:13:03,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:13:03,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724537997] [2022-12-14 14:13:03,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724537997] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:13:03,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542794013] [2022-12-14 14:13:03,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:03,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:03,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:13:03,530 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:13:03,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 14:13:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:03,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 14:13:03,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:03,589 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 14:13:03,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:13:03,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542794013] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:13:03,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 14:13:03,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2022-12-14 14:13:03,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781984612] [2022-12-14 14:13:03,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:13:03,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:13:03,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:13:03,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:13:03,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:13:03,591 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-12-14 14:13:03,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:03,607 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-12-14 14:13:03,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:13:03,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-12-14 14:13:03,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:03,608 INFO L225 Difference]: With dead ends: 28 [2022-12-14 14:13:03,608 INFO L226 Difference]: Without dead ends: 27 [2022-12-14 14:13:03,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:13:03,609 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 8 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 24 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 [2022-12-14 14:13:03,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 24 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:13:03,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-14 14:13:03,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 18. [2022-12-14 14:13:03,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 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) [2022-12-14 14:13:03,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2022-12-14 14:13:03,614 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 13 [2022-12-14 14:13:03,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:03,614 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-12-14 14:13:03,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-12-14 14:13:03,614 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2022-12-14 14:13:03,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 14:13:03,615 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:03,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:13:03,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 14:13:03,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:03,816 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:13:03,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:03,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1450138405, now seen corresponding path program 1 times [2022-12-14 14:13:03,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:13:03,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840252671] [2022-12-14 14:13:03,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:03,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:13:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:03,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:13:03,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:13:03,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840252671] [2022-12-14 14:13:03,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840252671] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:13:03,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084630652] [2022-12-14 14:13:03,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:03,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:03,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:13:03,884 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:13:03,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 14:13:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:03,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 14:13:03,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:03,946 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:13:03,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:03,965 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:13:03,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084630652] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:03,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [49111078] [2022-12-14 14:13:03,968 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-12-14 14:13:03,968 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:13:03,968 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:13:03,968 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:13:03,968 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:13:03,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:03,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:04,009 INFO L321 Elim1Store]: treesize reduction 37, result has 32.7 percent of original size [2022-12-14 14:13:04,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 34 [2022-12-14 14:13:04,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:04,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:04,046 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-12-14 14:13:04,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 53 [2022-12-14 14:13:04,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:04,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:04,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2022-12-14 14:13:04,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:04,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:04,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 83 [2022-12-14 14:13:04,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:04,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:04,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:04,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:04,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:04,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:04,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:04,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:04,243 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:04,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:04,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:04,246 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:04,247 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:04,247 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:04,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:04,283 INFO L321 Elim1Store]: treesize reduction 176, result has 19.3 percent of original size [2022-12-14 14:13:04,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 353 treesize of output 322 [2022-12-14 14:13:04,593 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:04,602 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 14:13:04,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 14:13:04,752 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:04,761 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 14:13:04,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 14:13:04,774 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:13:05,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [49111078] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:13:05,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:13:05,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 4, 4] total 19 [2022-12-14 14:13:05,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184075975] [2022-12-14 14:13:05,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:13:05,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 14:13:05,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:13:05,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 14:13:05,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2022-12-14 14:13:05,729 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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) [2022-12-14 14:13:05,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:05,906 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2022-12-14 14:13:05,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 14:13:05,907 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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 14 [2022-12-14 14:13:05,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:05,907 INFO L225 Difference]: With dead ends: 30 [2022-12-14 14:13:05,907 INFO L226 Difference]: Without dead ends: 28 [2022-12-14 14:13:05,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2022-12-14 14:13:05,908 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 48 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:05,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 20 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:13:05,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-12-14 14:13:05,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2022-12-14 14:13:05,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 22 states have internal predecessors, (26), 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) [2022-12-14 14:13:05,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-12-14 14:13:05,913 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 14 [2022-12-14 14:13:05,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:05,913 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-12-14 14:13:05,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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) [2022-12-14 14:13:05,913 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-12-14 14:13:05,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 14:13:05,913 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:05,913 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:13:05,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 14:13:06,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:06,115 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:13:06,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:06,116 INFO L85 PathProgramCache]: Analyzing trace with hash 218398995, now seen corresponding path program 1 times [2022-12-14 14:13:06,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:13:06,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138962513] [2022-12-14 14:13:06,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:06,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:13:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:06,178 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 14:13:06,178 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:13:06,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138962513] [2022-12-14 14:13:06,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138962513] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:13:06,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344435524] [2022-12-14 14:13:06,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:06,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:06,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:13:06,179 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:13:06,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 14:13:06,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:06,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 14:13:06,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:06,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 14:13:06,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:06,263 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 14:13:06,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344435524] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:06,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1007008046] [2022-12-14 14:13:06,266 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-12-14 14:13:06,266 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:13:06,266 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:13:06,266 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:13:06,266 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:13:06,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,303 INFO L321 Elim1Store]: treesize reduction 37, result has 32.7 percent of original size [2022-12-14 14:13:06,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 34 [2022-12-14 14:13:06,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,342 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-12-14 14:13:06,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 53 [2022-12-14 14:13:06,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2022-12-14 14:13:06,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 83 [2022-12-14 14:13:06,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,522 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:06,525 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:06,525 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:06,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:06,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:06,530 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:06,565 INFO L321 Elim1Store]: treesize reduction 237, result has 4.4 percent of original size [2022-12-14 14:13:06,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 9 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 385 treesize of output 340 [2022-12-14 14:13:06,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:06,637 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 14:13:06,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 14:13:06,834 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:06,843 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 14:13:06,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 14:13:06,853 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:13:08,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1007008046] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:13:08,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:13:08,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 4, 4] total 17 [2022-12-14 14:13:08,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289018737] [2022-12-14 14:13:08,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:13:08,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 14:13:08,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:13:08,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 14:13:08,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-12-14 14:13:08,075 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 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) [2022-12-14 14:13:08,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:08,241 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-12-14 14:13:08,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:13:08,242 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 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 15 [2022-12-14 14:13:08,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:08,242 INFO L225 Difference]: With dead ends: 28 [2022-12-14 14:13:08,242 INFO L226 Difference]: Without dead ends: 21 [2022-12-14 14:13:08,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2022-12-14 14:13:08,243 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 12 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:08,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 23 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:13:08,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-12-14 14:13:08,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2022-12-14 14:13:08,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 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) [2022-12-14 14:13:08,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-12-14 14:13:08,248 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 15 [2022-12-14 14:13:08,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:08,248 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-12-14 14:13:08,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 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) [2022-12-14 14:13:08,248 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-12-14 14:13:08,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 14:13:08,249 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:08,249 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:13:08,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 14:13:08,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:08,450 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:13:08,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:08,452 INFO L85 PathProgramCache]: Analyzing trace with hash -2002707222, now seen corresponding path program 1 times [2022-12-14 14:13:08,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:13:08,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051279448] [2022-12-14 14:13:08,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:08,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:13:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:08,494 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 14:13:08,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:13:08,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051279448] [2022-12-14 14:13:08,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051279448] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:13:08,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012218955] [2022-12-14 14:13:08,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:08,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:08,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:13:08,496 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:13:08,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 14:13:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:08,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 14:13:08,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:08,563 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 14:13:08,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:08,582 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 14:13:08,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012218955] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:08,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [801417406] [2022-12-14 14:13:08,584 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-12-14 14:13:08,584 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:13:08,584 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:13:08,584 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:13:08,584 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:13:08,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:08,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:08,627 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-12-14 14:13:08,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 53 [2022-12-14 14:13:08,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:08,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:08,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2022-12-14 14:13:08,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:08,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:08,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2022-12-14 14:13:08,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:08,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:08,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 83 [2022-12-14 14:13:08,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:08,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:08,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:08,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:08,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:08,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:08,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:08,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:08,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:08,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:08,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:08,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:08,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:08,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:08,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:08,841 INFO L321 Elim1Store]: treesize reduction 176, result has 19.3 percent of original size [2022-12-14 14:13:08,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 353 treesize of output 322 [2022-12-14 14:13:09,062 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:09,071 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 14:13:09,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 14:13:09,376 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:09,385 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 14:13:09,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 14:13:09,396 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:13:10,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [801417406] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:13:10,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:13:10,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 4, 4] total 19 [2022-12-14 14:13:10,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167045821] [2022-12-14 14:13:10,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:13:10,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 14:13:10,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:13:10,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 14:13:10,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2022-12-14 14:13:10,508 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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) [2022-12-14 14:13:11,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:11,002 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2022-12-14 14:13:11,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 14:13:11,002 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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 17 [2022-12-14 14:13:11,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:11,002 INFO L225 Difference]: With dead ends: 20 [2022-12-14 14:13:11,002 INFO L226 Difference]: Without dead ends: 19 [2022-12-14 14:13:11,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2022-12-14 14:13:11,003 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:11,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 0 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:13:11,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-14 14:13:11,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-14 14:13:11,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 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) [2022-12-14 14:13:11,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-12-14 14:13:11,009 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 17 [2022-12-14 14:13:11,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:11,010 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-12-14 14:13:11,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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) [2022-12-14 14:13:11,010 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-12-14 14:13:11,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 14:13:11,010 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:11,010 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:13:11,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 14:13:11,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 14:13:11,212 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:13:11,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:11,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1954381638, now seen corresponding path program 1 times [2022-12-14 14:13:11,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:13:11,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47126857] [2022-12-14 14:13:11,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:11,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:13:11,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:11,256 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 14:13:11,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:13:11,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47126857] [2022-12-14 14:13:11,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47126857] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:13:11,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928728453] [2022-12-14 14:13:11,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:11,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:11,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:13:11,258 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:13:11,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 14:13:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:11,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 14:13:11,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:11,322 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 14:13:11,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:11,337 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 14:13:11,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928728453] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:11,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1902722502] [2022-12-14 14:13:11,339 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-12-14 14:13:11,339 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:13:11,339 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:13:11,339 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:13:11,339 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:13:11,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:11,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:11,370 INFO L321 Elim1Store]: treesize reduction 37, result has 32.7 percent of original size [2022-12-14 14:13:11,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 34 [2022-12-14 14:13:11,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:11,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:11,400 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-12-14 14:13:11,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 53 [2022-12-14 14:13:11,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:11,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:11,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2022-12-14 14:13:11,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:11,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:11,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:11,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:11,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 73 [2022-12-14 14:13:11,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:11,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:11,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:11,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:11,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:11,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:11,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:11,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:11,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:11,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:11,560 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:11,561 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:11,561 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:11,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:11,562 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:11,581 INFO L321 Elim1Store]: treesize reduction 141, result has 7.2 percent of original size [2022-12-14 14:13:11,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 365 treesize of output 316 [2022-12-14 14:13:11,647 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:11,655 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 14:13:11,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 14:13:12,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:12,083 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 14:13:12,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 14:13:12,092 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:13:13,300 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1279#(and (= |ULTIMATE.start__strcmp_#res#1| 0) (<= 0 |ULTIMATE.start__strcmp_#in~dst#1.offset|) (<= 0 |ULTIMATE.start__strcmp_~dst#1.base|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) (= |ULTIMATE.start_main_~#b~0#1.offset| 0) (<= 0 |ULTIMATE.start__strcmp_~src#1.base|) (<= |ULTIMATE.start__strcmp_~src#1.offset| 0) (<= 0 |ULTIMATE.start__strcmp_#in~src#1.offset|) (<= 0 |ULTIMATE.start__strcmp_~dst#1.offset|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start__strcmp_#in~src#1.base|) (<= 0 |ULTIMATE.start__strcmp_~src#1.offset|) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start__strcmp_~i~0#1| 2147483647) (<= |ULTIMATE.start_main_~i~1#1| 2147483647) (<= |ULTIMATE.start__strcmp_#in~dst#1.offset| 0) (<= |ULTIMATE.start__strcmp_#in~src#1.offset| 0) (<= |ULTIMATE.start_main_~c~0#1| 0) (< 2147483646 |ULTIMATE.start_main_#t~post7#1|) (<= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (<= |ULTIMATE.start__strcmp_~dst#1.offset| 0) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (<= 0 |ULTIMATE.start__strcmp_#in~dst#1.base|) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 100000 |ULTIMATE.start_main_~i~1#1|) (<= 0 |ULTIMATE.start_main_~#b~0#1.base|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (<= 100000 |ULTIMATE.start__strcmp_~i~0#1|) (= |#NULL.base| 0))' at error location [2022-12-14 14:13:13,300 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 14:13:13,300 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:13:13,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-12-14 14:13:13,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567557738] [2022-12-14 14:13:13,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 14:13:13,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 14:13:13,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:13:13,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 14:13:13,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2022-12-14 14:13:13,302 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:13,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:13,341 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2022-12-14 14:13:13,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 14:13:13,342 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-12-14 14:13:13,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:13,342 INFO L225 Difference]: With dead ends: 39 [2022-12-14 14:13:13,342 INFO L226 Difference]: Without dead ends: 25 [2022-12-14 14:13:13,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-12-14 14:13:13,343 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:13,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 38 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:13:13,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-14 14:13:13,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-12-14 14:13:13,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.125) internal successors, (27), 24 states have internal predecessors, (27), 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) [2022-12-14 14:13:13,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2022-12-14 14:13:13,349 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 18 [2022-12-14 14:13:13,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:13,349 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-12-14 14:13:13,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:13,349 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-12-14 14:13:13,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 14:13:13,349 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:13,350 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:13:13,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-12-14 14:13:13,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:13,551 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:13:13,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:13,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1328779398, now seen corresponding path program 2 times [2022-12-14 14:13:13,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:13:13,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624692378] [2022-12-14 14:13:13,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:13,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:13:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:13,618 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 14:13:13,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:13:13,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624692378] [2022-12-14 14:13:13,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624692378] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:13:13,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830288673] [2022-12-14 14:13:13,618 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:13:13,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:13,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:13:13,619 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:13:13,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 14:13:13,658 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 14:13:13,658 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:13:13,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:13:13,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:13,665 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:13:13,666 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:13:13,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830288673] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:13:13,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 14:13:13,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-14 14:13:13,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070734815] [2022-12-14 14:13:13,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:13:13,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:13:13,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:13:13,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:13:13,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:13:13,667 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:13,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:13,683 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2022-12-14 14:13:13,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:13:13,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-12-14 14:13:13,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:13,684 INFO L225 Difference]: With dead ends: 25 [2022-12-14 14:13:13,684 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 14:13:13,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:13:13,685 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:13,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:13:13,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 14:13:13,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 14:13:13,686 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) [2022-12-14 14:13:13,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 14:13:13,686 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2022-12-14 14:13:13,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:13,686 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 14:13:13,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:13,686 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 14:13:13,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 14:13:13,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-12-14 14:13:13,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-12-14 14:13:13,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-12-14 14:13:13,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-12-14 14:13:13,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-12-14 14:13:13,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-12-14 14:13:13,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-14 14:13:13,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-14 14:13:13,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 14:13:14,837 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2022-12-14 14:13:14,837 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2022-12-14 14:13:14,837 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-12-14 14:13:14,838 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-12-14 14:13:14,838 INFO L899 garLoopResultBuilder]: For program point L28-3(line 28) no Hoare annotation was computed. [2022-12-14 14:13:14,838 INFO L899 garLoopResultBuilder]: For program point L28-4(line 28) no Hoare annotation was computed. [2022-12-14 14:13:14,839 INFO L895 garLoopResultBuilder]: At program point L28-5(lines 28 32) the Hoare annotation is: (let ((.cse1 (<= 1 |ULTIMATE.start_main_~i~1#1|))) (and (or (let ((.cse0 (select |#memory_int| 1))) (and (= 25 (select |#length| 2)) (= 400000 (select |#length| |ULTIMATE.start_main_~#b~0#1.base|)) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#a~0#1.base|) (= 2 (select |#length| 1)) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#b~0#1.base|) (= 400000 (select |#length| |ULTIMATE.start_main_~#a~0#1.base|)) (= (select |#valid| 1) 1) (= (select |#valid| |ULTIMATE.start_main_~#b~0#1.base|) 1) (= (select |#valid| |ULTIMATE.start_main_~#a~0#1.base|) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse0 0) 48) (not (= |ULTIMATE.start_main_~#b~0#1.base| |ULTIMATE.start_main_~#a~0#1.base|)) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|))) .cse1) (let ((.cse2 (<= |ULTIMATE.start_main_~#b~0#1.offset| 0)) (.cse3 (<= 0 |ULTIMATE.start_main_~#b~0#1.offset|))) (or (and (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) .cse2 (<= |ULTIMATE.start_main_~i~1#1| 2147483647) .cse1 .cse3 (<= 0 |#StackHeapBarrier|)) (and .cse2 (<= 0 |ULTIMATE.start_main_~i~1#1|) (<= |ULTIMATE.start_main_~i~1#1| 0) .cse3))) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#b~0#1.base|) (= |#NULL.base| 0))) [2022-12-14 14:13:14,839 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-12-14 14:13:14,839 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-12-14 14:13:14,839 INFO L899 garLoopResultBuilder]: For program point L37-3(line 37) no Hoare annotation was computed. [2022-12-14 14:13:14,839 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-12-14 14:13:14,839 INFO L899 garLoopResultBuilder]: For program point L37-4(line 37) no Hoare annotation was computed. [2022-12-14 14:13:14,839 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 14:13:14,840 INFO L895 garLoopResultBuilder]: At program point L37-5(lines 37 39) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start__strcmp_#in~dst#1.offset|)) (.cse1 (<= 0 |#NULL.base|)) (.cse2 (<= 0 |ULTIMATE.start__strcmp_~dst#1.base|)) (.cse3 (<= 0 |ULTIMATE.start_main_~#a~0#1.base|)) (.cse4 (<= |ULTIMATE.start_main_~#b~0#1.offset| 0)) (.cse5 (<= 0 |ULTIMATE.start__strcmp_~src#1.base|)) (.cse6 (<= |ULTIMATE.start__strcmp_~src#1.offset| 0)) (.cse7 (<= 0 |ULTIMATE.start__strcmp_#res#1|)) (.cse8 (<= 0 |ULTIMATE.start_main_~#a~0#1.offset|)) (.cse9 (<= 0 |ULTIMATE.start__strcmp_#in~src#1.offset|)) (.cse10 (<= 0 |ULTIMATE.start__strcmp_~dst#1.offset|)) (.cse11 (<= |#NULL.offset| 0)) (.cse12 (<= 0 |ULTIMATE.start__strcmp_#in~src#1.base|)) (.cse13 (<= 0 |ULTIMATE.start__strcmp_~src#1.offset|)) (.cse14 (<= 0 |ULTIMATE.start_main_~c~0#1|)) (.cse15 (<= |ULTIMATE.start__strcmp_~i~0#1| 2147483647)) (.cse16 (<= |ULTIMATE.start_main_~i~1#1| 2147483647)) (.cse17 (<= |ULTIMATE.start__strcmp_#in~dst#1.offset| 0)) (.cse18 (<= |ULTIMATE.start__strcmp_#in~src#1.offset| 0)) (.cse19 (<= |ULTIMATE.start_main_~c~0#1| 0)) (.cse20 (<= |ULTIMATE.start__strcmp_#res#1| 0)) (.cse21 (<= |ULTIMATE.start__strcmp_~dst#1.offset| 0)) (.cse22 (<= |ULTIMATE.start_main_~#a~0#1.offset| 0)) (.cse23 (<= |#NULL.base| 0)) (.cse24 (<= 0 |ULTIMATE.start__strcmp_#in~dst#1.base|)) (.cse25 (<= 100000 |ULTIMATE.start_main_~i~1#1|)) (.cse26 (<= 0 |ULTIMATE.start_main_~#b~0#1.base|)) (.cse27 (<= 0 |#NULL.offset|)) (.cse28 (<= 0 |ULTIMATE.start_main_~#b~0#1.offset|)) (.cse29 (<= 0 |#StackHeapBarrier|)) (.cse30 (<= 100000 |ULTIMATE.start__strcmp_~i~0#1|))) (or (and .cse0 .cse1 .cse2 (<= 0 |ULTIMATE.start_main_~x~0#1|) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 (<= |ULTIMATE.start_main_~x~0#1| 0) .cse25 .cse26 .cse27 .cse28 .cse29 .cse30) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (<= |ULTIMATE.start_main_~x~0#1| 2147483647) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 (<= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) .cse20 .cse21 .cse22 (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) .cse23 .cse24 (<= 0 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) .cse25 .cse26 .cse27 .cse28 .cse29 .cse30))) [2022-12-14 14:13:14,840 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-12-14 14:13:14,841 INFO L895 garLoopResultBuilder]: At program point _strcmp_returnLabel#1(lines 16 23) the Hoare annotation is: (let ((.cse6 (= |ULTIMATE.start__strcmp_#res#1| 1)) (.cse9 (not (let ((.cse23 (* |ULTIMATE.start__strcmp_~i~0#1| 4))) (= (select (select |#memory_int| |ULTIMATE.start__strcmp_~src#1.base|) (+ .cse23 |ULTIMATE.start__strcmp_~src#1.offset|)) (select (select |#memory_int| |ULTIMATE.start__strcmp_~dst#1.base|) (+ |ULTIMATE.start__strcmp_~dst#1.offset| .cse23)))))) (.cse0 (<= 0 |ULTIMATE.start__strcmp_#in~dst#1.offset|)) (.cse1 (<= 0 |ULTIMATE.start__strcmp_~dst#1.base|)) (.cse2 (<= 0 |ULTIMATE.start_main_~#a~0#1.base|)) (.cse3 (= |ULTIMATE.start_main_~#b~0#1.offset| 0)) (.cse4 (<= 0 |ULTIMATE.start__strcmp_~src#1.base|)) (.cse5 (<= |ULTIMATE.start__strcmp_~src#1.offset| 0)) (.cse7 (<= 0 |ULTIMATE.start__strcmp_#in~src#1.offset|)) (.cse8 (<= 0 |ULTIMATE.start__strcmp_~dst#1.offset|)) (.cse10 (<= 0 |ULTIMATE.start__strcmp_#in~src#1.base|)) (.cse11 (<= 0 |ULTIMATE.start__strcmp_~src#1.offset|)) (.cse12 (<= |ULTIMATE.start_main_~i~1#1| 2147483647)) (.cse13 (<= |ULTIMATE.start__strcmp_#in~dst#1.offset| 0)) (.cse14 (<= |ULTIMATE.start__strcmp_#in~src#1.offset| 0)) (.cse15 (<= |ULTIMATE.start__strcmp_~dst#1.offset| 0)) (.cse16 (<= 0 |ULTIMATE.start__strcmp_#in~dst#1.base|)) (.cse17 (= |ULTIMATE.start_main_~#a~0#1.offset| 0)) (.cse18 (= |#NULL.offset| 0)) (.cse19 (<= 100000 |ULTIMATE.start_main_~i~1#1|)) (.cse20 (<= 0 |ULTIMATE.start_main_~#b~0#1.base|)) (.cse21 (<= 0 |#StackHeapBarrier|)) (.cse22 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (< |ULTIMATE.start__strcmp_~i~0#1| 100000) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 (<= 1 |ULTIMATE.start__strcmp_~i~0#1|) .cse22) (and (= |ULTIMATE.start_main_~#b~0#1.offset| |ULTIMATE.start__strcmp_#in~dst#1.offset|) (= |ULTIMATE.start__strcmp_~dst#1.offset| |ULTIMATE.start__strcmp_#in~dst#1.offset|) (= |ULTIMATE.start__strcmp_#in~dst#1.base| |ULTIMATE.start_main_~#b~0#1.base|) (= |ULTIMATE.start_main_~#a~0#1.offset| |ULTIMATE.start__strcmp_#in~src#1.offset|) .cse2 .cse3 (= |ULTIMATE.start__strcmp_~i~0#1| 0) (= |ULTIMATE.start__strcmp_#in~src#1.base| |ULTIMATE.start_main_~#a~0#1.base|) (= |ULTIMATE.start__strcmp_~dst#1.base| |ULTIMATE.start__strcmp_#in~dst#1.base|) .cse6 .cse9 .cse17 (= |ULTIMATE.start__strcmp_~src#1.offset| |ULTIMATE.start__strcmp_#in~src#1.offset|) (= |ULTIMATE.start__strcmp_~src#1.base| |ULTIMATE.start__strcmp_#in~src#1.base|) .cse18 .cse19 .cse20 .cse21 .cse22) (and (= |ULTIMATE.start__strcmp_#res#1| 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse7 .cse8 .cse10 .cse11 (<= |ULTIMATE.start__strcmp_~i~0#1| 2147483647) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 (<= 100000 |ULTIMATE.start__strcmp_~i~0#1|) .cse22))) [2022-12-14 14:13:14,841 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 14:13:14,841 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2022-12-14 14:13:14,841 INFO L895 garLoopResultBuilder]: At program point L18-2(lines 18 21) the Hoare annotation is: (and (let ((.cse0 (<= 0 |ULTIMATE.start_main_~#a~0#1.base|)) (.cse1 (= |ULTIMATE.start_main_~#b~0#1.offset| 0)) (.cse2 (<= |ULTIMATE.start_main_~i~1#1| 2147483647))) (or (and (<= 0 |ULTIMATE.start__strcmp_#in~dst#1.offset|) (<= 0 |ULTIMATE.start__strcmp_~dst#1.base|) .cse0 .cse1 (<= 0 |ULTIMATE.start__strcmp_~src#1.base|) (<= |ULTIMATE.start__strcmp_~src#1.offset| 0) (<= 0 |ULTIMATE.start__strcmp_#in~src#1.offset|) (<= 0 |ULTIMATE.start__strcmp_~dst#1.offset|) (<= 0 |ULTIMATE.start__strcmp_#in~src#1.base|) (<= 0 |ULTIMATE.start__strcmp_~src#1.offset|) (<= |ULTIMATE.start__strcmp_~i~0#1| 2147483647) .cse2 (<= |ULTIMATE.start__strcmp_#in~dst#1.offset| 0) (<= |ULTIMATE.start__strcmp_#in~src#1.offset| 0) (<= |ULTIMATE.start__strcmp_~dst#1.offset| 0) (<= 0 |ULTIMATE.start__strcmp_#in~dst#1.base|) (<= 100000 |ULTIMATE.start_main_~i~1#1|) (<= 1 |ULTIMATE.start__strcmp_~i~0#1|)) (and (= |ULTIMATE.start_main_~#b~0#1.offset| |ULTIMATE.start__strcmp_#in~dst#1.offset|) (= |ULTIMATE.start__strcmp_~dst#1.offset| |ULTIMATE.start__strcmp_#in~dst#1.offset|) (= |ULTIMATE.start__strcmp_#in~dst#1.base| |ULTIMATE.start_main_~#b~0#1.base|) (= |ULTIMATE.start_main_~#a~0#1.offset| |ULTIMATE.start__strcmp_#in~src#1.offset|) .cse0 .cse1 (not (< |ULTIMATE.start_main_~i~1#1| 100000)) (= |ULTIMATE.start__strcmp_~i~0#1| 0) (= |ULTIMATE.start__strcmp_#in~src#1.base| |ULTIMATE.start_main_~#a~0#1.base|) (= |ULTIMATE.start__strcmp_~dst#1.base| |ULTIMATE.start__strcmp_#in~dst#1.base|) .cse2 (= |ULTIMATE.start__strcmp_~src#1.offset| |ULTIMATE.start__strcmp_#in~src#1.offset|) (= |ULTIMATE.start__strcmp_~src#1.base| |ULTIMATE.start__strcmp_#in~src#1.base|)))) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#b~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) [2022-12-14 14:13:14,841 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 40) no Hoare annotation was computed. [2022-12-14 14:13:14,841 INFO L902 garLoopResultBuilder]: At program point L35-1(lines 35 40) the Hoare annotation is: true [2022-12-14 14:13:14,843 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:13:14,845 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:13:14,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:13:14 BoogieIcfgContainer [2022-12-14 14:13:14,870 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:13:14,870 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:13:14,870 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:13:14,871 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:13:14,871 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:12:59" (3/4) ... [2022-12-14 14:13:14,874 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 14:13:14,882 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-12-14 14:13:14,882 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 14:13:14,882 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 14:13:14,882 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 14:13:14,902 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((0 <= dst && 0 <= dst) && 0 <= a) && b == 0) && 0 <= src) && src <= 0) && \result == 1) && 0 <= src) && 0 <= dst) && i < 100000) && !(unknown-#memory_int-unknown[src][i * 4 + src] == unknown-#memory_int-unknown[dst][dst + i * 4])) && 0 <= src) && 0 <= src) && i <= 2147483647) && dst <= 0) && src <= 0) && dst <= 0) && 0 <= dst) && a == 0) && #NULL == 0) && 100000 <= i) && 0 <= b) && 0 <= unknown-#StackHeapBarrier-unknown) && 1 <= i) && #NULL == 0) || ((((((((((((((((((b == dst && dst == dst) && dst == b) && a == src) && 0 <= a) && b == 0) && i == 0) && src == a) && dst == dst) && \result == 1) && !(unknown-#memory_int-unknown[src][i * 4 + src] == unknown-#memory_int-unknown[dst][dst + i * 4])) && a == 0) && src == src) && src == src) && #NULL == 0) && 100000 <= i) && 0 <= b) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((((((((((((((((((\result == 0 && 0 <= dst) && 0 <= dst) && 0 <= a) && b == 0) && 0 <= src) && src <= 0) && 0 <= src) && 0 <= dst) && 0 <= src) && 0 <= src) && i <= 2147483647) && i <= 2147483647) && dst <= 0) && src <= 0) && dst <= 0) && 0 <= dst) && a == 0) && #NULL == 0) && 100000 <= i) && 0 <= b) && 0 <= unknown-#StackHeapBarrier-unknown) && 100000 <= i) && #NULL == 0) [2022-12-14 14:13:14,902 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((0 <= dst && 0 <= #NULL) && 0 <= dst) && 0 <= x) && 0 <= a) && b <= 0) && 0 <= src) && src <= 0) && 0 <= \result) && 0 <= a) && 0 <= src) && 0 <= dst) && #NULL <= 0) && 0 <= src) && 0 <= src) && 0 <= c) && i <= 2147483647) && i <= 2147483647) && dst <= 0) && src <= 0) && c <= 0) && \result <= 0) && dst <= 0) && a <= 0) && #NULL <= 0) && 0 <= dst) && x <= 0) && 100000 <= i) && 0 <= b) && 0 <= #NULL) && 0 <= b) && 0 <= unknown-#StackHeapBarrier-unknown) && 100000 <= i) || ((((((((((((((((((((((((((((((((((((0 <= dst && 0 <= #NULL) && 0 <= dst) && 0 <= a) && b <= 0) && 0 <= src) && x <= 2147483647) && src <= 0) && 0 <= \result) && 0 <= a) && 0 <= src) && 0 <= dst) && #NULL <= 0) && 0 <= src) && 0 <= src) && 0 <= c) && i <= 2147483647) && i <= 2147483647) && dst <= 0) && src <= 0) && c <= 0) && cond <= 1) && 1 <= x) && \result <= 0) && dst <= 0) && a <= 0) && \old(cond) <= 1) && #NULL <= 0) && 0 <= dst) && 0 <= cond) && 0 <= \old(cond)) && 100000 <= i) && 0 <= b) && 0 <= #NULL) && 0 <= b) && 0 <= unknown-#StackHeapBarrier-unknown) && 100000 <= i) [2022-12-14 14:13:14,911 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 14:13:14,911 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:13:14,911 INFO L158 Benchmark]: Toolchain (without parser) took 15535.62ms. Allocated memory was 163.6MB in the beginning and 203.4MB in the end (delta: 39.8MB). Free memory was 122.1MB in the beginning and 81.3MB in the end (delta: 40.8MB). Peak memory consumption was 82.3MB. Max. memory is 16.1GB. [2022-12-14 14:13:14,912 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 163.6MB. Free memory is still 129.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:13:14,912 INFO L158 Benchmark]: CACSL2BoogieTranslator took 165.33ms. Allocated memory is still 163.6MB. Free memory was 122.1MB in the beginning and 111.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 14:13:14,912 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.42ms. Allocated memory is still 163.6MB. Free memory was 111.6MB in the beginning and 110.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:13:14,912 INFO L158 Benchmark]: Boogie Preprocessor took 18.88ms. Allocated memory is still 163.6MB. Free memory was 110.3MB in the beginning and 108.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:13:14,913 INFO L158 Benchmark]: RCFGBuilder took 264.25ms. Allocated memory is still 163.6MB. Free memory was 108.9MB in the beginning and 94.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 14:13:14,913 INFO L158 Benchmark]: TraceAbstraction took 15017.04ms. Allocated memory was 163.6MB in the beginning and 203.4MB in the end (delta: 39.8MB). Free memory was 93.7MB in the beginning and 84.4MB in the end (delta: 9.2MB). Peak memory consumption was 83.2MB. Max. memory is 16.1GB. [2022-12-14 14:13:14,913 INFO L158 Benchmark]: Witness Printer took 40.68ms. Allocated memory is still 203.4MB. Free memory was 84.4MB in the beginning and 81.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 14:13:14,915 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 163.6MB. Free memory is still 129.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 165.33ms. Allocated memory is still 163.6MB. Free memory was 122.1MB in the beginning and 111.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.42ms. Allocated memory is still 163.6MB. Free memory was 111.6MB in the beginning and 110.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.88ms. Allocated memory is still 163.6MB. Free memory was 110.3MB in the beginning and 108.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 264.25ms. Allocated memory is still 163.6MB. Free memory was 108.9MB in the beginning and 94.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 15017.04ms. Allocated memory was 163.6MB in the beginning and 203.4MB in the end (delta: 39.8MB). Free memory was 93.7MB in the beginning and 84.4MB in the end (delta: 9.2MB). Peak memory consumption was 83.2MB. Max. memory is 16.1GB. * Witness Printer took 40.68ms. Allocated memory is still 203.4MB. Free memory was 84.4MB in the beginning and 81.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. 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: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: 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, 21 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 14.9s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 149 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 149 mSDsluCounter, 278 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 166 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 384 IncrementalHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 112 mSDtfsCounter, 384 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 323 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=11, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 24 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 16 NumberOfFragments, 692 HoareAnnotationTreeSize, 5 FomulaSimplifications, 50 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 5 FomulaSimplificationsInter, 2390 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 280 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 328 ConstructedInterpolants, 0 QuantifiedInterpolants, 536 SizeOfPredicates, 7 NumberOfNonLiveVariables, 1085 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 27 InterpolantComputations, 7 PerfectInterpolantSequences, 77/98 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: OVERALL_TIME: 3.1s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 51, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 137, TOOLS_POST_TIME: 2.6s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 137, TOOLS_QUANTIFIERELIM_TIME: 2.6s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.4s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 242, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 19, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 16, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 24, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 51, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 8, LOOP_SUMMARIZER_CACHE_MISSES: 8, LOOP_SUMMARIZER_OVERALL_TIME: 2.2s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 2.2s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 24, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 1092, DAG_COMPRESSION_RETAINED_NODES: 170, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((0 <= dst && 0 <= dst) && 0 <= a) && b == 0) && 0 <= src) && src <= 0) && \result == 1) && 0 <= src) && 0 <= dst) && i < 100000) && !(unknown-#memory_int-unknown[src][i * 4 + src] == unknown-#memory_int-unknown[dst][dst + i * 4])) && 0 <= src) && 0 <= src) && i <= 2147483647) && dst <= 0) && src <= 0) && dst <= 0) && 0 <= dst) && a == 0) && #NULL == 0) && 100000 <= i) && 0 <= b) && 0 <= unknown-#StackHeapBarrier-unknown) && 1 <= i) && #NULL == 0) || ((((((((((((((((((b == dst && dst == dst) && dst == b) && a == src) && 0 <= a) && b == 0) && i == 0) && src == a) && dst == dst) && \result == 1) && !(unknown-#memory_int-unknown[src][i * 4 + src] == unknown-#memory_int-unknown[dst][dst + i * 4])) && a == 0) && src == src) && src == src) && #NULL == 0) && 100000 <= i) && 0 <= b) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((((((((((((((((((\result == 0 && 0 <= dst) && 0 <= dst) && 0 <= a) && b == 0) && 0 <= src) && src <= 0) && 0 <= src) && 0 <= dst) && 0 <= src) && 0 <= src) && i <= 2147483647) && i <= 2147483647) && dst <= 0) && src <= 0) && dst <= 0) && 0 <= dst) && a == 0) && #NULL == 0) && 100000 <= i) && 0 <= b) && 0 <= unknown-#StackHeapBarrier-unknown) && 100000 <= i) && #NULL == 0) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((0 <= dst && 0 <= dst) && 0 <= a) && b == 0) && 0 <= src) && src <= 0) && 0 <= src) && 0 <= dst) && 0 <= src) && 0 <= src) && i <= 2147483647) && i <= 2147483647) && dst <= 0) && src <= 0) && dst <= 0) && 0 <= dst) && 100000 <= i) && 1 <= i) || ((((((((((((b == dst && dst == dst) && dst == b) && a == src) && 0 <= a) && b == 0) && !(i < 100000)) && i == 0) && src == a) && dst == dst) && i <= 2147483647) && src == src) && src == src)) && a == 0) && #NULL == 0) && 0 <= b) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((0 <= dst && 0 <= #NULL) && 0 <= dst) && 0 <= x) && 0 <= a) && b <= 0) && 0 <= src) && src <= 0) && 0 <= \result) && 0 <= a) && 0 <= src) && 0 <= dst) && #NULL <= 0) && 0 <= src) && 0 <= src) && 0 <= c) && i <= 2147483647) && i <= 2147483647) && dst <= 0) && src <= 0) && c <= 0) && \result <= 0) && dst <= 0) && a <= 0) && #NULL <= 0) && 0 <= dst) && x <= 0) && 100000 <= i) && 0 <= b) && 0 <= #NULL) && 0 <= b) && 0 <= unknown-#StackHeapBarrier-unknown) && 100000 <= i) || ((((((((((((((((((((((((((((((((((((0 <= dst && 0 <= #NULL) && 0 <= dst) && 0 <= a) && b <= 0) && 0 <= src) && x <= 2147483647) && src <= 0) && 0 <= \result) && 0 <= a) && 0 <= src) && 0 <= dst) && #NULL <= 0) && 0 <= src) && 0 <= src) && 0 <= c) && i <= 2147483647) && i <= 2147483647) && dst <= 0) && src <= 0) && c <= 0) && cond <= 1) && 1 <= x) && \result <= 0) && dst <= 0) && a <= 0) && \old(cond) <= 1) && #NULL <= 0) && 0 <= dst) && 0 <= cond) && 0 <= \old(cond)) && 100000 <= i) && 0 <= b) && 0 <= #NULL) && 0 <= b) && 0 <= unknown-#StackHeapBarrier-unknown) && 100000 <= i) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (((((((((((((((((((25 == unknown-#length-unknown[2] && 400000 == unknown-#length-unknown[b]) && unknown-#StackHeapBarrier-unknown < a) && 2 == unknown-#length-unknown[1]) && unknown-#StackHeapBarrier-unknown < b) && 400000 == unknown-#length-unknown[a]) && \valid[1] == 1) && \valid[b] == 1) && \valid[a] == 1) && \valid[0] == 0) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && !(b == a)) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) || 1 <= i) && ((((((0 <= a && b <= 0) && i <= 2147483647) && 1 <= i) && 0 <= b) && 0 <= unknown-#StackHeapBarrier-unknown) || (((b <= 0 && 0 <= i) && i <= 0) && 0 <= b))) && a == 0) && #NULL == 0) && 0 <= b) && #NULL == 0 RESULT: Ultimate proved your program to be correct! [2022-12-14 14:13:14,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c204b-a8ac-4032-a3e9-43ba92485656/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE