./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/res1of.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46251a33-17c2-474f-a542-abf075d045e8/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46251a33-17c2-474f-a542-abf075d045e8/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46251a33-17c2-474f-a542-abf075d045e8/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46251a33-17c2-474f-a542-abf075d045e8/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/res1of.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46251a33-17c2-474f-a542-abf075d045e8/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46251a33-17c2-474f-a542-abf075d045e8/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 57f5bc3f2465ca16a33e2abd2b6a859e2a8d1edbb81177ae0ddb508180efbdff --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:55:53,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:55:53,584 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:55:53,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:55:53,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:55:53,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:55:53,646 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:55:53,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:55:53,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:55:53,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:55:53,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:55:53,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:55:53,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:55:53,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:55:53,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:55:53,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:55:53,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:55:53,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:55:53,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:55:53,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:55:53,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:55:53,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:55:53,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:55:53,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:55:53,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:55:53,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:55:53,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:55:53,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:55:53,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:55:53,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:55:53,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:55:53,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:55:53,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:55:53,716 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:55:53,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:55:53,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:55:53,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:55:53,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:55:53,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:55:53,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:55:53,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:55:53,722 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46251a33-17c2-474f-a542-abf075d045e8/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 18:55:53,771 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:55:53,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:55:53,773 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:55:53,773 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:55:53,774 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:55:53,774 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:55:53,775 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:55:53,775 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:55:53,775 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:55:53,775 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:55:53,776 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:55:53,777 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:55:53,777 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:55:53,777 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:55:53,777 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:55:53,778 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:55:53,778 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:55:53,778 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:55:53,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:55:53,779 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:55:53,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:55:53,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:55:53,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:55:53,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:55:53,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:55:53,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:55:53,782 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:55:53,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:55:53,783 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:55:53,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:55:53,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:55:53,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:55:53,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:55:53,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:55:53,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:55:53,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:55:53,785 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:55:53,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:55:53,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:55:53,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:55:53,786 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:55:53,786 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_46251a33-17c2-474f-a542-abf075d045e8/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46251a33-17c2-474f-a542-abf075d045e8/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57f5bc3f2465ca16a33e2abd2b6a859e2a8d1edbb81177ae0ddb508180efbdff [2021-11-25 18:55:54,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:55:54,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:55:54,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:55:54,092 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:55:54,093 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:55:54,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46251a33-17c2-474f-a542-abf075d045e8/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/array-fpi/res1of.c [2021-11-25 18:55:54,171 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46251a33-17c2-474f-a542-abf075d045e8/bin/utaipan-eEHZpOm5b7/data/97d0e6141/dae6002ee4b647e39bde559c28246b49/FLAGb5d70423a [2021-11-25 18:55:54,704 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:55:54,706 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46251a33-17c2-474f-a542-abf075d045e8/sv-benchmarks/c/array-fpi/res1of.c [2021-11-25 18:55:54,719 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46251a33-17c2-474f-a542-abf075d045e8/bin/utaipan-eEHZpOm5b7/data/97d0e6141/dae6002ee4b647e39bde559c28246b49/FLAGb5d70423a [2021-11-25 18:55:55,058 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46251a33-17c2-474f-a542-abf075d045e8/bin/utaipan-eEHZpOm5b7/data/97d0e6141/dae6002ee4b647e39bde559c28246b49 [2021-11-25 18:55:55,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:55:55,067 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:55:55,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:55:55,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:55:55,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:55:55,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:55:55" (1/1) ... [2021-11-25 18:55:55,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71cbb1e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:55:55, skipping insertion in model container [2021-11-25 18:55:55,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:55:55" (1/1) ... [2021-11-25 18:55:55,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:55:55,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:55:55,327 WARN L230 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_46251a33-17c2-474f-a542-abf075d045e8/sv-benchmarks/c/array-fpi/res1of.c[589,602] [2021-11-25 18:55:55,358 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:55:55,368 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:55:55,383 WARN L230 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_46251a33-17c2-474f-a542-abf075d045e8/sv-benchmarks/c/array-fpi/res1of.c[589,602] [2021-11-25 18:55:55,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:55:55,429 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:55:55,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:55:55 WrapperNode [2021-11-25 18:55:55,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:55:55,431 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:55:55,431 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:55:55,431 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:55:55,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:55:55" (1/1) ... [2021-11-25 18:55:55,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:55:55" (1/1) ... [2021-11-25 18:55:55,487 INFO L137 Inliner]: procedures = 17, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2021-11-25 18:55:55,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:55:55,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:55:55,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:55:55,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:55:55,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:55:55" (1/1) ... [2021-11-25 18:55:55,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:55:55" (1/1) ... [2021-11-25 18:55:55,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:55:55" (1/1) ... [2021-11-25 18:55:55,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:55:55" (1/1) ... [2021-11-25 18:55:55,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:55:55" (1/1) ... [2021-11-25 18:55:55,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:55:55" (1/1) ... [2021-11-25 18:55:55,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:55:55" (1/1) ... [2021-11-25 18:55:55,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:55:55,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:55:55,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:55:55,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:55:55,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:55:55" (1/1) ... [2021-11-25 18:55:55,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:55:55,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46251a33-17c2-474f-a542-abf075d045e8/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:55:55,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46251a33-17c2-474f-a542-abf075d045e8/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:55:55,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46251a33-17c2-474f-a542-abf075d045e8/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:55:55,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:55:55,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:55:55,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:55:55,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:55:55,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:55:55,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:55:55,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:55:55,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:55:55,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:55:55,729 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:55:55,731 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:55:55,931 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:55:55,965 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:55:55,965 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-25 18:55:55,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:55:55 BoogieIcfgContainer [2021-11-25 18:55:55,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:55:55,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:55:55,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:55:55,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:55:55,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:55:55" (1/3) ... [2021-11-25 18:55:55,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@325f62a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:55:55, skipping insertion in model container [2021-11-25 18:55:55,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:55:55" (2/3) ... [2021-11-25 18:55:55,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@325f62a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:55:55, skipping insertion in model container [2021-11-25 18:55:55,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:55:55" (3/3) ... [2021-11-25 18:55:55,975 INFO L111 eAbstractionObserver]: Analyzing ICFG res1of.c [2021-11-25 18:55:55,980 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:55:55,981 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 18:55:56,027 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:55:56,034 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:55:56,034 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 18:55:56,057 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 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) [2021-11-25 18:55:56,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 18:55:56,064 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:55:56,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:55:56,066 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:55:56,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:55:56,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1860276480, now seen corresponding path program 1 times [2021-11-25 18:55:56,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:55:56,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541527706] [2021-11-25 18:55:56,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:55:56,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:55:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:55:56,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:55:56,373 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:55:56,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541527706] [2021-11-25 18:55:56,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541527706] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:55:56,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:55:56,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:55:56,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333031841] [2021-11-25 18:55:56,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:55:56,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:55:56,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:55:56,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:55:56,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:55:56,416 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) 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) [2021-11-25 18:55:56,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:55:56,484 INFO L93 Difference]: Finished difference Result 22 states and 31 transitions. [2021-11-25 18:55:56,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:55:56,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) 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 [2021-11-25 18:55:56,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:55:56,495 INFO L225 Difference]: With dead ends: 22 [2021-11-25 18:55:56,495 INFO L226 Difference]: Without dead ends: 10 [2021-11-25 18:55:56,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:55:56,502 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:55:56,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:55:56,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-11-25 18:55:56,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-11-25 18:55:56,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 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) [2021-11-25 18:55:56,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-11-25 18:55:56,533 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 13 transitions. Word has length 8 [2021-11-25 18:55:56,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:55:56,534 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-11-25 18:55:56,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) 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) [2021-11-25 18:55:56,534 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2021-11-25 18:55:56,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 18:55:56,535 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:55:56,535 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:55:56,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:55:56,536 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:55:56,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:55:56,537 INFO L85 PathProgramCache]: Analyzing trace with hash 509978442, now seen corresponding path program 1 times [2021-11-25 18:55:56,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:55:56,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356231386] [2021-11-25 18:55:56,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:55:56,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:55:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:55:56,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:55:56,644 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:55:56,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356231386] [2021-11-25 18:55:56,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356231386] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:55:56,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:55:56,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:55:56,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584933478] [2021-11-25 18:55:56,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:55:56,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:55:56,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:55:56,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:55:56,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:55:56,648 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2021-11-25 18:55:56,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:55:56,680 INFO L93 Difference]: Finished difference Result 18 states and 25 transitions. [2021-11-25 18:55:56,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:55:56,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 [2021-11-25 18:55:56,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:55:56,682 INFO L225 Difference]: With dead ends: 18 [2021-11-25 18:55:56,682 INFO L226 Difference]: Without dead ends: 13 [2021-11-25 18:55:56,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:55:56,684 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:55:56,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 4 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:55:56,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-25 18:55:56,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-25 18:55:56,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 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) [2021-11-25 18:55:56,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2021-11-25 18:55:56,690 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 9 [2021-11-25 18:55:56,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:55:56,691 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-11-25 18:55:56,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2021-11-25 18:55:56,691 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-11-25 18:55:56,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 18:55:56,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:55:56,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:55:56,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:55:56,692 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:55:56,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:55:56,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1718165419, now seen corresponding path program 1 times [2021-11-25 18:55:56,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:55:56,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140944660] [2021-11-25 18:55:56,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:55:56,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:55:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 18:55:56,747 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 18:55:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 18:55:56,829 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 18:55:56,830 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 18:55:56,831 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 18:55:56,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:55:56,840 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-25 18:55:56,843 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 18:55:56,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:55:56 BoogieIcfgContainer [2021-11-25 18:55:56,896 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 18:55:56,897 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 18:55:56,898 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 18:55:56,898 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 18:55:56,898 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:55:55" (3/4) ... [2021-11-25 18:55:56,901 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-25 18:55:56,965 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46251a33-17c2-474f-a542-abf075d045e8/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 18:55:56,965 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 18:55:56,967 INFO L158 Benchmark]: Toolchain (without parser) took 1899.56ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 57.7MB in the beginning and 80.8MB in the end (delta: -23.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:55:56,967 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 98.6MB. Free memory was 73.9MB in the beginning and 73.8MB in the end (delta: 46.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:55:56,968 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.14ms. Allocated memory is still 98.6MB. Free memory was 57.5MB in the beginning and 73.3MB in the end (delta: -15.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-25 18:55:56,968 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.74ms. Allocated memory is still 98.6MB. Free memory was 73.0MB in the beginning and 71.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:55:56,969 INFO L158 Benchmark]: Boogie Preprocessor took 41.33ms. Allocated memory is still 98.6MB. Free memory was 71.6MB in the beginning and 70.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:55:56,969 INFO L158 Benchmark]: RCFGBuilder took 436.87ms. Allocated memory is still 98.6MB. Free memory was 70.1MB in the beginning and 57.3MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-25 18:55:56,970 INFO L158 Benchmark]: TraceAbstraction took 927.48ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 56.8MB in the beginning and 82.9MB in the end (delta: -26.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:55:56,970 INFO L158 Benchmark]: Witness Printer took 68.58ms. Allocated memory is still 119.5MB. Free memory was 82.9MB in the beginning and 80.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:55:56,973 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 98.6MB. Free memory was 73.9MB in the beginning and 73.8MB in the end (delta: 46.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.14ms. Allocated memory is still 98.6MB. Free memory was 57.5MB in the beginning and 73.3MB in the end (delta: -15.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.74ms. Allocated memory is still 98.6MB. Free memory was 73.0MB in the beginning and 71.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.33ms. Allocated memory is still 98.6MB. Free memory was 71.6MB in the beginning and 70.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 436.87ms. Allocated memory is still 98.6MB. Free memory was 70.1MB in the beginning and 57.3MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 927.48ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 56.8MB in the beginning and 82.9MB in the end (delta: -26.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 68.58ms. Allocated memory is still 119.5MB. Free memory was 82.9MB in the beginning and 80.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L30] int *b = malloc(sizeof(int)*N); [L32] sum[0] = 0 [L33] i=0 VAL [a={-1:0}, b={5:0}, i=0, N=1, sum={7:0}] [L33] COND TRUE i