./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-regression/test24-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test24-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ba9918f9236391a08a9d6d8a63aa823d4042d99b397d7843518d83dccab2fbf8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 00:31:45,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:31:45,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:31:45,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:31:45,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:31:45,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:31:45,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:31:45,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:31:45,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:31:45,469 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:31:45,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:31:45,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:31:45,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:31:45,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:31:45,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:31:45,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:31:45,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:31:45,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:31:45,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:31:45,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:31:45,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:31:45,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:31:45,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:31:45,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:31:45,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:31:45,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:31:45,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:31:45,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:31:45,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:31:45,512 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:31:45,512 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:31:45,513 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:31:45,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:31:45,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:31:45,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:31:45,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:31:45,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:31:45,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:31:45,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:31:45,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:31:45,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:31:45,520 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 00:31:45,543 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:31:45,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:31:45,543 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:31:45,544 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:31:45,544 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:31:45,545 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:31:45,545 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:31:45,545 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:31:45,545 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:31:45,546 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:31:45,546 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:31:45,546 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:31:45,546 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:31:45,547 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:31:45,547 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:31:45,547 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:31:45,548 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:31:45,548 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:31:45,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:31:45,549 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:31:45,549 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:31:45,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:31:45,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:31:45,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:31:45,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:31:45,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:31:45,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:31:45,551 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 00:31:45,551 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:31:45,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:31:45,552 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:31:45,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:31:45,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:31:45,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:31:45,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:31:45,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:31:45,553 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:31:45,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:31:45,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:31:45,554 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:31:45,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:31:45,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:31:45,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:31:45,555 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_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba9918f9236391a08a9d6d8a63aa823d4042d99b397d7843518d83dccab2fbf8 [2022-11-22 00:31:45,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:31:45,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:31:45,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:31:45,805 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:31:45,805 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:31:45,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-regression/test24-2.c [2022-11-22 00:31:48,850 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:31:49,144 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:31:49,145 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/sv-benchmarks/c/ldv-regression/test24-2.c [2022-11-22 00:31:49,153 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/data/cff90291b/b73fd46470384de3b5f4f520996a110b/FLAG0943573bb [2022-11-22 00:31:49,175 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/data/cff90291b/b73fd46470384de3b5f4f520996a110b [2022-11-22 00:31:49,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:31:49,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:31:49,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:31:49,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:31:49,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:31:49,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:31:49" (1/1) ... [2022-11-22 00:31:49,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20bbd8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:49, skipping insertion in model container [2022-11-22 00:31:49,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:31:49" (1/1) ... [2022-11-22 00:31:49,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:31:49,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:31:49,422 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_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/sv-benchmarks/c/ldv-regression/test24-2.c[807,820] [2022-11-22 00:31:49,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:31:49,434 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:31:49,464 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_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/sv-benchmarks/c/ldv-regression/test24-2.c[807,820] [2022-11-22 00:31:49,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:31:49,478 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:31:49,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:49 WrapperNode [2022-11-22 00:31:49,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:31:49,480 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:31:49,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:31:49,480 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:31:49,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:49" (1/1) ... [2022-11-22 00:31:49,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:49" (1/1) ... [2022-11-22 00:31:49,514 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 80 [2022-11-22 00:31:49,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:31:49,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:31:49,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:31:49,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:31:49,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:49" (1/1) ... [2022-11-22 00:31:49,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:49" (1/1) ... [2022-11-22 00:31:49,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:49" (1/1) ... [2022-11-22 00:31:49,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:49" (1/1) ... [2022-11-22 00:31:49,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:49" (1/1) ... [2022-11-22 00:31:49,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:49" (1/1) ... [2022-11-22 00:31:49,538 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:49" (1/1) ... [2022-11-22 00:31:49,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:49" (1/1) ... [2022-11-22 00:31:49,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:31:49,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:31:49,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:31:49,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:31:49,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:49" (1/1) ... [2022-11-22 00:31:49,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:31:49,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:31:49,575 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:31:49,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:31:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:31:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:31:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:31:49,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:31:49,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:31:49,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:31:49,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:31:49,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:31:49,710 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:31:49,712 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:31:49,892 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:31:49,940 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:31:49,940 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 00:31:49,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:31:49 BoogieIcfgContainer [2022-11-22 00:31:49,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:31:49,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:31:49,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:31:49,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:31:49,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:31:49" (1/3) ... [2022-11-22 00:31:49,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d738b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:31:49, skipping insertion in model container [2022-11-22 00:31:49,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:49" (2/3) ... [2022-11-22 00:31:49,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d738b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:31:49, skipping insertion in model container [2022-11-22 00:31:49,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:31:49" (3/3) ... [2022-11-22 00:31:49,952 INFO L112 eAbstractionObserver]: Analyzing ICFG test24-2.c [2022-11-22 00:31:49,972 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:31:49,973 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-22 00:31:50,019 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:31:50,025 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;@4f72a7aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:31:50,025 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-22 00:31:50,028 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 21 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) [2022-11-22 00:31:50,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 00:31:50,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:50,035 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 00:31:50,036 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)] === [2022-11-22 00:31:50,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:50,042 INFO L85 PathProgramCache]: Analyzing trace with hash 93230, now seen corresponding path program 1 times [2022-11-22 00:31:50,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:50,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393207294] [2022-11-22 00:31:50,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:50,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:50,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:50,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:50,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393207294] [2022-11-22 00:31:50,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393207294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:50,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:31:50,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:31:50,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641210205] [2022-11-22 00:31:50,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:50,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:31:50,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:50,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:31:50,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:31:50,436 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 21 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) 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) [2022-11-22 00:31:50,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:50,498 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2022-11-22 00:31:50,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:31:50,500 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 [2022-11-22 00:31:50,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:50,508 INFO L225 Difference]: With dead ends: 43 [2022-11-22 00:31:50,509 INFO L226 Difference]: Without dead ends: 20 [2022-11-22 00:31:50,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:31:50,515 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:50,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 50 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:31:50,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-22 00:31:50,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-22 00:31:50,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.5) internal successors, (21), 19 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) [2022-11-22 00:31:50,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-11-22 00:31:50,559 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 3 [2022-11-22 00:31:50,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:50,560 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-11-22 00:31:50,560 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) [2022-11-22 00:31:50,560 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-11-22 00:31:50,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 00:31:50,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:50,561 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-22 00:31:50,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:31:50,561 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)] === [2022-11-22 00:31:50,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:50,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1517505264, now seen corresponding path program 1 times [2022-11-22 00:31:50,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:50,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381087240] [2022-11-22 00:31:50,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:50,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:50,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 00:31:50,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:50,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381087240] [2022-11-22 00:31:50,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381087240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:50,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:31:50,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:31:50,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295436025] [2022-11-22 00:31:50,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:50,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:31:50,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:50,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:31:50,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:31:50,706 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:50,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:50,743 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-11-22 00:31:50,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:31:50,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 00:31:50,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:50,744 INFO L225 Difference]: With dead ends: 20 [2022-11-22 00:31:50,745 INFO L226 Difference]: Without dead ends: 19 [2022-11-22 00:31:50,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:31:50,747 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:50,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 22 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:31:50,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-22 00:31:50,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-22 00:31:50,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 18 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) [2022-11-22 00:31:50,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-11-22 00:31:50,751 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 6 [2022-11-22 00:31:50,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:50,752 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-11-22 00:31:50,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:50,752 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-11-22 00:31:50,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 00:31:50,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:50,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:31:50,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:31:50,753 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:31:50,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:50,754 INFO L85 PathProgramCache]: Analyzing trace with hash 201983172, now seen corresponding path program 1 times [2022-11-22 00:31:50,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:50,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971401819] [2022-11-22 00:31:50,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:50,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:50,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:50,862 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:50,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971401819] [2022-11-22 00:31:50,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971401819] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:31:50,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145140631] [2022-11-22 00:31:50,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:50,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:31:50,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:31:50,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:31:50,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 00:31:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:50,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 00:31:50,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:31:51,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:51,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:31:51,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:51,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145140631] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:31:51,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1269966860] [2022-11-22 00:31:51,165 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 00:31:51,169 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:31:51,173 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:31:51,178 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:31:51,178 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:31:51,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:51,312 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 00:31:51,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-22 00:31:51,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:51,404 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 00:31:51,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-22 00:31:51,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:51,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 44 [2022-11-22 00:31:51,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:51,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:51,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:51,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:51,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:51,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:51,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 76 [2022-11-22 00:31:52,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,033 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:31:52,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,046 INFO L321 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2022-11-22 00:31:52,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 329 treesize of output 291 [2022-11-22 00:31:52,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-22 00:31:52,282 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 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 00:31:52,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-22 00:31:52,329 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:31:52,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1269966860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:52,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:31:52,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4, 4] total 14 [2022-11-22 00:31:52,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880599728] [2022-11-22 00:31:52,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:52,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 00:31:52,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:52,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 00:31:52,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-22 00:31:52,976 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:53,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:53,106 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2022-11-22 00:31:53,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:31:53,107 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-22 00:31:53,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:53,108 INFO L225 Difference]: With dead ends: 25 [2022-11-22 00:31:53,108 INFO L226 Difference]: Without dead ends: 21 [2022-11-22 00:31:53,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-22 00:31:53,109 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 23 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:53,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 5 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:31:53,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-22 00:31:53,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2022-11-22 00:31:53,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.25) internal successors, (20), 17 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) [2022-11-22 00:31:53,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-11-22 00:31:53,117 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 7 [2022-11-22 00:31:53,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:53,117 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-11-22 00:31:53,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:53,118 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-11-22 00:31:53,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 00:31:53,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:53,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:31:53,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 00:31:53,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-22 00:31:53,324 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:31:53,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:53,325 INFO L85 PathProgramCache]: Analyzing trace with hash 978115851, now seen corresponding path program 1 times [2022-11-22 00:31:53,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:53,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559347479] [2022-11-22 00:31:53,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:53,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:53,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:53,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:53,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559347479] [2022-11-22 00:31:53,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559347479] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:31:53,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667514673] [2022-11-22 00:31:53,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:53,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:31:53,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:31:53,406 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:31:53,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 00:31:53,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:53,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 00:31:53,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:31:53,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:53,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:31:53,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:53,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667514673] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:31:53,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [32278971] [2022-11-22 00:31:53,543 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-22 00:31:53,544 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:31:53,544 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:31:53,545 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:31:53,545 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:31:53,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,603 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 00:31:53,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-22 00:31:53,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 00:31:53,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 44 [2022-11-22 00:31:53,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 76 [2022-11-22 00:31:53,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,912 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:31:53,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:53,926 INFO L321 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2022-11-22 00:31:53,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 345 treesize of output 291 [2022-11-22 00:31:54,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-22 00:31:54,075 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 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 00:31:54,107 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:31:54,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [32278971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:54,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:31:54,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 4, 4] total 16 [2022-11-22 00:31:54,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114585541] [2022-11-22 00:31:54,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:54,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 00:31:54,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:54,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 00:31:54,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:31:54,796 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:55,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:55,010 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-11-22 00:31:55,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 00:31:55,010 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-22 00:31:55,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:55,011 INFO L225 Difference]: With dead ends: 18 [2022-11-22 00:31:55,011 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 00:31:55,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-22 00:31:55,012 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:55,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:31:55,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 00:31:55,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 00:31:55,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:55,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 00:31:55,014 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-11-22 00:31:55,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:55,014 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 00:31:55,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:55,014 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 00:31:55,014 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 00:31:55,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-22 00:31:55,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-22 00:31:55,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-22 00:31:55,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-22 00:31:55,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-22 00:31:55,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-22 00:31:55,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 00:31:55,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:31:55,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 00:31:55,512 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-11-22 00:31:55,512 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2022-11-22 00:31:55,512 INFO L899 garLoopResultBuilder]: For program point L19-4(line 19) no Hoare annotation was computed. [2022-11-22 00:31:55,513 INFO L895 garLoopResultBuilder]: At program point L19-5(lines 19 22) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (let ((.cse0 (= |ULTIMATE.start_main_~#ad1~0#1.offset| 0)) (.cse1 (= |#NULL.offset| 0)) (.cse2 (= |#NULL.base| 0))) (or (and (<= 0 |ULTIMATE.start_main_~#ad1~0#1.base|) (<= 1 |ULTIMATE.start_main_~j~0#1|) .cse0 .cse1 (<= 0 |#StackHeapBarrier|) .cse2) (let ((.cse3 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| |ULTIMATE.start_main_~#ad1~0#1.base|) 1) (= (select |#valid| 1) 1) (= 160 (select |#length| |ULTIMATE.start_main_~#ad1~0#1.base|)) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#ad1~0#1.base|) .cse0 (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) .cse1 (= (select .cse3 0) 48) (= |ULTIMATE.start_main_~j~0#1| 0) (= (select .cse3 1) 0) (< 0 |#StackHeapBarrier|) .cse2))))) [2022-11-22 00:31:55,513 INFO L902 garLoopResultBuilder]: At program point L40(lines 15 41) the Hoare annotation is: true [2022-11-22 00:31:55,513 INFO L902 garLoopResultBuilder]: At program point L32(lines 32 34) the Hoare annotation is: true [2022-11-22 00:31:55,513 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-11-22 00:31:55,513 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 00:31:55,513 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-11-22 00:31:55,514 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2022-11-22 00:31:55,514 INFO L899 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2022-11-22 00:31:55,514 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 35) no Hoare annotation was computed. [2022-11-22 00:31:55,514 INFO L899 garLoopResultBuilder]: For program point L24-2(lines 24 35) no Hoare annotation was computed. [2022-11-22 00:31:55,514 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-11-22 00:31:55,514 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 00:31:55,514 INFO L899 garLoopResultBuilder]: For program point L29-1(lines 29 31) no Hoare annotation was computed. [2022-11-22 00:31:55,514 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-11-22 00:31:55,515 INFO L895 garLoopResultBuilder]: At program point L29-3(lines 29 31) the Hoare annotation is: (let ((.cse1 (div (+ (- |ULTIMATE.start_main_~#ad1~0#1.offset|) |ULTIMATE.start_main_~pa~0#1.offset|) 8))) (let ((.cse0 (* .cse1 8))) (and (<= 20 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~#ad1~0#1.base|) (= (+ (select (select |#memory_int| |ULTIMATE.start_main_~ad2~0#1.base|) (+ .cse0 |ULTIMATE.start_main_~ad2~0#1.offset|)) 10) |ULTIMATE.start_main_~i~0#1|) (< .cse1 10) (= |ULTIMATE.start_main_~ad2~0#1.offset| |ULTIMATE.start_main_~#ad1~0#1.offset|) (= |ULTIMATE.start_main_~pa~0#1.base| |ULTIMATE.start_main_~#ad1~0#1.base|) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (= (mod (+ (* 7 |ULTIMATE.start_main_~#ad1~0#1.offset|) |ULTIMATE.start_main_~pa~0#1.offset|) 8) 0) (= |ULTIMATE.start_main_~#ad1~0#1.offset| 0) (= |#NULL.offset| 0) (= .cse1 (select (select |#memory_int| |ULTIMATE.start_main_~#ad1~0#1.base|) (+ .cse0 |ULTIMATE.start_main_~#ad1~0#1.offset|))) (= |ULTIMATE.start_main_~ad2~0#1.base| |ULTIMATE.start_main_~#ad1~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (<= 0 .cse1)))) [2022-11-22 00:31:55,515 INFO L902 garLoopResultBuilder]: At program point L29-4(lines 29 31) the Hoare annotation is: true [2022-11-22 00:31:55,515 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-11-22 00:31:55,515 INFO L899 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2022-11-22 00:31:55,515 INFO L899 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2022-11-22 00:31:55,518 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-22 00:31:55,521 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:31:55,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:31:55 BoogieIcfgContainer [2022-11-22 00:31:55,552 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:31:55,553 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:31:55,553 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:31:55,553 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:31:55,553 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:31:49" (3/4) ... [2022-11-22 00:31:55,556 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 00:31:55,567 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-22 00:31:55,567 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-22 00:31:55,568 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-22 00:31:55,569 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 00:31:55,605 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 00:31:55,605 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:31:55,606 INFO L158 Benchmark]: Toolchain (without parser) took 6425.85ms. Allocated memory was 140.5MB in the beginning and 201.3MB in the end (delta: 60.8MB). Free memory was 109.2MB in the beginning and 150.4MB in the end (delta: -41.3MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2022-11-22 00:31:55,606 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 140.5MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:31:55,606 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.82ms. Allocated memory is still 140.5MB. Free memory was 108.7MB in the beginning and 98.7MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-22 00:31:55,606 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.79ms. Allocated memory is still 140.5MB. Free memory was 98.2MB in the beginning and 96.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:31:55,607 INFO L158 Benchmark]: Boogie Preprocessor took 25.30ms. Allocated memory is still 140.5MB. Free memory was 96.6MB in the beginning and 95.6MB in the end (delta: 994.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:31:55,607 INFO L158 Benchmark]: RCFGBuilder took 401.65ms. Allocated memory is still 140.5MB. Free memory was 95.6MB in the beginning and 82.6MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 00:31:55,607 INFO L158 Benchmark]: TraceAbstraction took 5606.88ms. Allocated memory was 140.5MB in the beginning and 201.3MB in the end (delta: 60.8MB). Free memory was 81.9MB in the beginning and 153.6MB in the end (delta: -71.7MB). Peak memory consumption was 92.4MB. Max. memory is 16.1GB. [2022-11-22 00:31:55,608 INFO L158 Benchmark]: Witness Printer took 52.59ms. Allocated memory is still 201.3MB. Free memory was 153.6MB in the beginning and 150.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 00:31:55,609 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 140.5MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 295.82ms. Allocated memory is still 140.5MB. Free memory was 108.7MB in the beginning and 98.7MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.79ms. Allocated memory is still 140.5MB. Free memory was 98.2MB in the beginning and 96.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.30ms. Allocated memory is still 140.5MB. Free memory was 96.6MB in the beginning and 95.6MB in the end (delta: 994.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 401.65ms. Allocated memory is still 140.5MB. Free memory was 95.6MB in the beginning and 82.6MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5606.88ms. Allocated memory was 140.5MB in the beginning and 201.3MB in the end (delta: 60.8MB). Free memory was 81.9MB in the beginning and 153.6MB in the end (delta: -71.7MB). Peak memory consumption was 92.4MB. Max. memory is 16.1GB. * Witness Printer took 52.59ms. Allocated memory is still 201.3MB. Free memory was 153.6MB in the beginning and 150.4MB in the end (delta: 3.1MB). 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: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: 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: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 77 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 47 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 123 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 30 mSDtfsCounter, 123 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 200 HoareAnnotationTreeSize, 5 FomulaSimplifications, 5 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 361 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 109 SizeOfPredicates, 2 NumberOfNonLiveVariables, 163 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 2/8 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: 1.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 18, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 36, TOOLS_POST_TIME: 1.5s, 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: 36, TOOLS_QUANTIFIERELIM_TIME: 1.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 68, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 5, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 18, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME: 1.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, 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: 186, DAG_COMPRESSION_RETAINED_NODES: 55, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((((((((((((20 <= j && 0 <= ad1) && unknown-#memory_int-unknown[ad2][(-ad1 + pa) / 8 * 8 + ad2] + 10 == i) && (-ad1 + pa) / 8 < 10) && ad2 == ad1) && pa == ad1) && j <= 2147483647) && (7 * ad1 + pa) % 8 == 0) && ad1 == 0) && #NULL == 0) && (-ad1 + pa) / 8 == unknown-#memory_int-unknown[ad1][(-ad1 + pa) / 8 * 8 + ad1]) && ad2 == ad1) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) && 0 <= (-ad1 + pa) / 8 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: j <= 2147483647 && ((((((0 <= ad1 && 1 <= j) && ad1 == 0) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((((((((((((unknown-#length-unknown[3] == 12 && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && \valid[ad1] == 1) && \valid[1] == 1) && 160 == unknown-#length-unknown[ad1]) && unknown-#StackHeapBarrier-unknown < ad1) && ad1 == 0) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && j == 0) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-22 00:31:55,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05baace3-ea5b-49cd-8bcf-0d6dc91a6ad7/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE