./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/nested5-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/nested5-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG --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 b89d5a1db28cdbe10153d7e75038bff16b1343640a8d05a90f6e5bdf82eae94a .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:53:49,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:53:49,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:53:49,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:53:49,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:53:49,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:53:49,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:53:49,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:53:49,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:53:49,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:53:49,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:53:49,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:53:49,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:53:49,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:53:49,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:53:49,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:53:49,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:53:49,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:53:49,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:53:49,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:53:49,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:53:49,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:53:49,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:53:49,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:53:49,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:53:49,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:53:49,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:53:49,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:53:49,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:53:49,654 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:53:49,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:53:49,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:53:49,657 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:53:49,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:53:49,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:53:49,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:53:49,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:53:49,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:53:49,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:53:49,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:53:49,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:53:49,664 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 04:53:49,695 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:53:49,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:53:49,697 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:53:49,697 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:53:49,697 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:53:49,697 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:53:49,697 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:53:49,698 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:53:49,701 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:53:49,701 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:53:49,702 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:53:49,702 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:53:49,702 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:53:49,702 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:53:49,702 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:53:49,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:53:49,703 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:53:49,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:53:49,704 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:53:49,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:53:49,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:53:49,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:53:49,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:53:49,705 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:53:49,705 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:53:49,705 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:53:49,705 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:53:49,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:53:49,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:53:49,706 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:53:49,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:53:49,707 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:53:49,707 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:53:49,707 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:53:49,707 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:53:49,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:53:49,708 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:53:49,708 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:53:49,708 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:53:49,708 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_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b89d5a1db28cdbe10153d7e75038bff16b1343640a8d05a90f6e5bdf82eae94a [2021-10-29 04:53:50,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:53:50,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:53:50,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:53:50,061 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:53:50,062 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:53:50,063 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/loops-crafted-1/nested5-1.c [2021-10-29 04:53:50,149 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/data/214be1e6c/ce5260de4a444d7ea0f11d303ed00942/FLAG7b645e2f5 [2021-10-29 04:53:50,694 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:53:50,695 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/sv-benchmarks/c/loops-crafted-1/nested5-1.c [2021-10-29 04:53:50,706 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/data/214be1e6c/ce5260de4a444d7ea0f11d303ed00942/FLAG7b645e2f5 [2021-10-29 04:53:51,071 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/data/214be1e6c/ce5260de4a444d7ea0f11d303ed00942 [2021-10-29 04:53:51,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:53:51,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:53:51,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:53:51,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:53:51,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:53:51,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:53:51" (1/1) ... [2021-10-29 04:53:51,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10f330b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:51, skipping insertion in model container [2021-10-29 04:53:51,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:53:51" (1/1) ... [2021-10-29 04:53:51,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:53:51,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:53:51,313 WARN L228 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_8cadfc49-8996-4ec0-9316-932d29e04f39/sv-benchmarks/c/loops-crafted-1/nested5-1.c[321,334] [2021-10-29 04:53:51,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:53:51,341 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:53:51,354 WARN L228 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_8cadfc49-8996-4ec0-9316-932d29e04f39/sv-benchmarks/c/loops-crafted-1/nested5-1.c[321,334] [2021-10-29 04:53:51,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:53:51,393 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:53:51,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:51 WrapperNode [2021-10-29 04:53:51,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:53:51,398 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:53:51,398 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:53:51,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:53:51,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:51" (1/1) ... [2021-10-29 04:53:51,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:51" (1/1) ... [2021-10-29 04:53:51,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:53:51,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:53:51,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:53:51,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:53:51,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:51" (1/1) ... [2021-10-29 04:53:51,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:51" (1/1) ... [2021-10-29 04:53:51,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:51" (1/1) ... [2021-10-29 04:53:51,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:51" (1/1) ... [2021-10-29 04:53:51,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:51" (1/1) ... [2021-10-29 04:53:51,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:51" (1/1) ... [2021-10-29 04:53:51,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:51" (1/1) ... [2021-10-29 04:53:51,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:53:51,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:53:51,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:53:51,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:53:51,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:51" (1/1) ... [2021-10-29 04:53:51,492 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:53:51,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:53:51,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:53:51,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:53:51,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:53:51,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:53:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:53:51,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:53:51,889 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:53:51,890 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-29 04:53:51,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:53:51 BoogieIcfgContainer [2021-10-29 04:53:51,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:53:51,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:53:51,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:53:51,898 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:53:51,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:53:51" (1/3) ... [2021-10-29 04:53:51,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f059841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:53:51, skipping insertion in model container [2021-10-29 04:53:51,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:51" (2/3) ... [2021-10-29 04:53:51,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f059841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:53:51, skipping insertion in model container [2021-10-29 04:53:51,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:53:51" (3/3) ... [2021-10-29 04:53:51,901 INFO L111 eAbstractionObserver]: Analyzing ICFG nested5-1.c [2021-10-29 04:53:51,906 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:53:51,906 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 04:53:51,952 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:53:51,959 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 [2021-10-29 04:53:51,959 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 04:53:51,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 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) [2021-10-29 04:53:51,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 04:53:51,977 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:51,978 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:53:51,978 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:53:51,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:51,984 INFO L85 PathProgramCache]: Analyzing trace with hash 194610778, now seen corresponding path program 1 times [2021-10-29 04:53:52,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:53:52,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025186127] [2021-10-29 04:53:52,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:52,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:53:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:52,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:52,315 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:53:52,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025186127] [2021-10-29 04:53:52,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025186127] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:53:52,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:53:52,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:53:52,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306868154] [2021-10-29 04:53:52,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:53:52,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:53:52,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:53:52,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:53:52,360 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 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) 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) [2021-10-29 04:53:52,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:52,401 INFO L93 Difference]: Finished difference Result 27 states and 41 transitions. [2021-10-29 04:53:52,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:53:52,403 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 [2021-10-29 04:53:52,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:52,412 INFO L225 Difference]: With dead ends: 27 [2021-10-29 04:53:52,412 INFO L226 Difference]: Without dead ends: 15 [2021-10-29 04:53:52,417 INFO L786 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 [2021-10-29 04:53:52,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-29 04:53:52,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 11. [2021-10-29 04:53:52,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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) [2021-10-29 04:53:52,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2021-10-29 04:53:52,450 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 15 transitions. Word has length 8 [2021-10-29 04:53:52,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:52,451 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 15 transitions. [2021-10-29 04:53:52,452 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) [2021-10-29 04:53:52,453 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2021-10-29 04:53:52,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 04:53:52,454 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:52,454 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:53:52,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 04:53:52,455 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:53:52,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:52,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1737735212, now seen corresponding path program 1 times [2021-10-29 04:53:52,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:53:52,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886812657] [2021-10-29 04:53:52,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:52,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:53:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:52,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:52,602 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:53:52,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886812657] [2021-10-29 04:53:52,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886812657] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 04:53:52,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986877274] [2021-10-29 04:53:52,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:52,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:53:52,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:53:52,607 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:53:52,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 04:53:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:52,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 04:53:52,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:53:52,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:52,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:53:52,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:52,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986877274] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:53:52,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [530346080] [2021-10-29 04:53:52,849 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-29 04:53:52,849 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 04:53:52,856 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 04:53:52,862 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 04:53:52,863 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 04:53:52,917 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:52,931 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:52,935 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:52,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-29 04:53:52,939 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:53:52,939 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:52,941 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 04:53:52,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-10-29 04:53:52,981 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_9|], 21=[|v_#valid_10|]} [2021-10-29 04:53:53,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:53,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:53,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:53,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-29 04:53:53,021 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:53,024 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:53:53,025 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:53,026 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:53:53,027 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:53,029 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:53,074 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:53,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:53,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:53,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:53,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:53,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:53,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:53,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:53:53,127 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-10-29 04:53:53,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 34 [2021-10-29 04:53:53,131 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:53,136 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-10-29 04:53:53,154 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:53,155 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-10-29 04:53:53,156 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 04:53:53,157 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:53,183 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:53,186 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:53,189 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2021-10-29 04:53:53,190 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 04:53:53,191 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:131, output treesize:110 [2021-10-29 04:53:53,202 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:53,211 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-10-29 04:53:53,222 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:53,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-10-29 04:53:53,250 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:53,259 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-10-29 04:53:53,271 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:53,276 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-10-29 04:53:53,283 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:53,292 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-10-29 04:53:53,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:53,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:53,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:53,463 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:53:53,486 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 349 [2021-10-29 04:53:53,498 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:53,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:53,611 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:53,614 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:53,616 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:53,619 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:53,646 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:53,663 INFO L180 QuantifierPusher]: treesize reduction 54, result has 50.0 percent of original size [2021-10-29 04:53:53,667 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-10-29 04:53:53,676 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 04:53:54,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:53:54,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-29 04:53:54,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-10-29 04:53:54,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116738673] [2021-10-29 04:53:54,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 04:53:54,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:53:54,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 04:53:54,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-10-29 04:53:54,432 INFO L87 Difference]: Start difference. First operand 11 states and 15 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:53:54,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:54,471 INFO L93 Difference]: Finished difference Result 28 states and 42 transitions. [2021-10-29 04:53:54,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 04:53:54,471 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-29 04:53:54,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:54,472 INFO L225 Difference]: With dead ends: 28 [2021-10-29 04:53:54,472 INFO L226 Difference]: Without dead ends: 18 [2021-10-29 04:53:54,473 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-10-29 04:53:54,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-29 04:53:54,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2021-10-29 04:53:54,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:53:54,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2021-10-29 04:53:54,477 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 18 transitions. Word has length 9 [2021-10-29 04:53:54,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:54,477 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 18 transitions. [2021-10-29 04:53:54,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:53:54,477 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2021-10-29 04:53:54,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:53:54,478 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:54,478 INFO L513 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:53:54,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:53:54,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-29 04:53:54,696 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:53:54,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:54,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1398893274, now seen corresponding path program 2 times [2021-10-29 04:53:54,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:53:54,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146934089] [2021-10-29 04:53:54,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:54,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:53:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:54,837 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:54,837 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:53:54,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146934089] [2021-10-29 04:53:54,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146934089] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 04:53:54,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106971360] [2021-10-29 04:53:54,839 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-29 04:53:54,839 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:53:54,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:53:54,844 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:53:54,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-29 04:53:54,975 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-29 04:53:54,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 04:53:54,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 04:53:54,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:53:55,173 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 04:53:55,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:53:55,264 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 04:53:55,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106971360] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:53:55,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-29 04:53:55,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [7] total 11 [2021-10-29 04:53:55,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865511492] [2021-10-29 04:53:55,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 04:53:55,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:53:55,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 04:53:55,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-10-29 04:53:55,267 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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) [2021-10-29 04:53:55,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:55,502 INFO L93 Difference]: Finished difference Result 23 states and 31 transitions. [2021-10-29 04:53:55,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 04:53:55,503 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-29 04:53:55,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:55,504 INFO L225 Difference]: With dead ends: 23 [2021-10-29 04:53:55,504 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 04:53:55,505 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-10-29 04:53:55,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 04:53:55,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 04:53:55,505 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) [2021-10-29 04:53:55,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 04:53:55,505 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-10-29 04:53:55,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:55,506 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 04:53:55,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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) [2021-10-29 04:53:55,506 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 04:53:55,506 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:53:55,509 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:53:55,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-29 04:53:55,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-29 04:53:55,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 04:53:55,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:55,727 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:55,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:55,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:55,743 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:55,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:53:55,992 INFO L853 garLoopResultBuilder]: At program point L23-3(line 23) the Hoare annotation is: (or (< (mod (+ ULTIMATE.start_main_~v~0 4294967295) 4294967296) 10) (= ULTIMATE.start_main_~v~0 0)) [2021-10-29 04:53:55,992 INFO L853 garLoopResultBuilder]: At program point L19-3(lines 19 25) the Hoare annotation is: (or (< (mod ULTIMATE.start_main_~v~0 4294967296) 10) (not (= (mod ULTIMATE.start_main_~v~0 4) 0))) [2021-10-29 04:53:55,992 INFO L857 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2021-10-29 04:53:55,993 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 04:53:55,993 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2021-10-29 04:53:55,993 INFO L853 garLoopResultBuilder]: At program point L20-3(lines 20 25) the Hoare annotation is: (or (< (mod ULTIMATE.start_main_~v~0 4294967296) 10) (not (= (mod ULTIMATE.start_main_~v~0 4) 0))) [2021-10-29 04:53:55,993 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 04:53:55,993 INFO L853 garLoopResultBuilder]: At program point L21-3(lines 21 25) the Hoare annotation is: (or (< (mod ULTIMATE.start_main_~v~0 4294967296) 10) (not (= (mod ULTIMATE.start_main_~v~0 4) 0))) [2021-10-29 04:53:55,993 INFO L853 garLoopResultBuilder]: At program point L22-2(lines 22 25) the Hoare annotation is: (or (< (mod ULTIMATE.start_main_~v~0 4294967296) 10) (not (= (mod ULTIMATE.start_main_~v~0 4) 0))) [2021-10-29 04:53:55,994 INFO L857 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2021-10-29 04:53:55,994 INFO L853 garLoopResultBuilder]: At program point L6-2(lines 1 27) the Hoare annotation is: (and (< ULTIMATE.start___VERIFIER_assert_~cond 4) (< (mod (+ ULTIMATE.start_main_~v~0 4294967295) 4294967296) 10) (let ((.cse0 (* ULTIMATE.start___VERIFIER_assert_~cond (- 1)))) (< (div (+ (div (+ .cse0 10) 4) (* (div (+ (- 4294967306) ULTIMATE.start___VERIFIER_assert_~cond) (- 4)) (- 1))) (- 1073741824)) (+ (div (+ (div (+ .cse0 8589934591) 4) (* (div (+ (- 1) ULTIMATE.start___VERIFIER_assert_~cond) (- 4)) (- 1))) 1073741824) 1))) (<= 0 ULTIMATE.start___VERIFIER_assert_~cond)) [2021-10-29 04:53:55,997 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1] [2021-10-29 04:53:55,999 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:53:56,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:53:56 BoogieIcfgContainer [2021-10-29 04:53:56,015 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:53:56,016 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:53:56,016 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:53:56,016 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:53:56,017 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:53:51" (3/4) ... [2021-10-29 04:53:56,020 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:53:56,029 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-10-29 04:53:56,029 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-29 04:53:56,030 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 04:53:56,030 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:53:56,066 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:53:56,066 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:53:56,067 INFO L168 Benchmark]: Toolchain (without parser) took 4989.64 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 57.2 MB in the beginning and 93.9 MB in the end (delta: -36.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:56,068 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 90.2 MB. Free memory is still 44.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:53:56,069 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.59 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 56.9 MB in the beginning and 84.9 MB in the end (delta: -28.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:56,069 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.57 ms. Allocated memory is still 109.1 MB. Free memory was 84.9 MB in the beginning and 83.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:56,070 INFO L168 Benchmark]: Boogie Preprocessor took 36.88 ms. Allocated memory is still 109.1 MB. Free memory was 83.4 MB in the beginning and 82.5 MB in the end (delta: 920.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:53:56,070 INFO L168 Benchmark]: RCFGBuilder took 409.52 ms. Allocated memory is still 109.1 MB. Free memory was 82.3 MB in the beginning and 69.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:56,071 INFO L168 Benchmark]: TraceAbstraction took 4121.37 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 69.1 MB in the beginning and 96.0 MB in the end (delta: -26.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:53:56,071 INFO L168 Benchmark]: Witness Printer took 50.73 ms. Allocated memory is still 132.1 MB. Free memory was 96.0 MB in the beginning and 93.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:56,074 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 90.2 MB. Free memory is still 44.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 312.59 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 56.9 MB in the beginning and 84.9 MB in the end (delta: -28.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.57 ms. Allocated memory is still 109.1 MB. Free memory was 84.9 MB in the beginning and 83.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.88 ms. Allocated memory is still 109.1 MB. Free memory was 83.4 MB in the beginning and 82.5 MB in the end (delta: 920.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 409.52 ms. Allocated memory is still 109.1 MB. Free memory was 82.3 MB in the beginning and 69.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4121.37 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 69.1 MB in the beginning and 96.0 MB in the end (delta: -26.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 50.73 ms. Allocated memory is still 132.1 MB. Free memory was 96.0 MB in the beginning and 93.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 43 SDtfs, 52 SDslu, 63 SDs, 0 SdLazy, 29 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 40 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=2, InterpolantAutomatonStates: 15, 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, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 25 NumberOfFragments, 110 HoareAnnotationTreeSize, 6 FomulaSimplifications, 327 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 217 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 50 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 185 SizeOfPredicates, 5 NumberOfNonLiveVariables, 131 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 20/33 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: v % 4294967296 < 10 || !(v % 4 == 0) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((cond < 4 && (v + 4294967295) % 4294967296 < 10) && ((cond * -1 + 10) / 4 + (-4294967306 + cond) / -4 * -1) / -1073741824 < ((cond * -1 + 8589934591) / 4 + (-1 + cond) / -4 * -1) / 1073741824 + 1) && 0 <= cond - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: v % 4294967296 < 10 || !(v % 4 == 0) - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (v + 4294967295) % 4294967296 < 10 || v == 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: v % 4294967296 < 10 || !(v % 4 == 0) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: v % 4294967296 < 10 || !(v % 4 == 0) RESULT: Ultimate proved your program to be correct! [2021-10-29 04:53:56,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cadfc49-8996-4ec0-9316-932d29e04f39/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...