./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-crafted/simple_vardep_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_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/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_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-crafted/simple_vardep_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/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_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/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 199c7a46b756091bf3eb8b2dd1ac46d4cc123e50a50bc65aad9ff531c4b58043 ....................................................................................................................................................................................................................................................................................................................................................................................................... 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 04:41:54,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:41:54,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:41:54,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:41:54,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:41:54,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:41:54,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:41:54,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:41:54,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:41:54,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:41:54,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:41:54,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:41:54,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:41:54,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:41:54,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:41:54,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:41:54,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:41:54,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:41:54,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:41:54,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:41:54,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:41:54,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:41:54,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:41:54,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:41:54,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:41:54,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:41:54,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:41:54,799 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:41:54,800 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:41:54,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:41:54,802 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:41:54,803 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:41:54,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:41:54,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:41:54,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:41:54,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:41:54,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:41:54,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:41:54,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:41:54,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:41:54,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:41:54,813 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 04:41:54,869 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:41:54,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:41:54,872 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:41:54,872 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:41:54,872 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:41:54,873 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:41:54,873 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:41:54,881 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:41:54,881 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:41:54,882 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:41:54,883 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:41:54,884 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:41:54,885 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:41:54,885 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:41:54,886 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:41:54,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:41:54,887 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:41:54,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:41:54,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:41:54,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:41:54,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:41:54,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:41:54,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:41:54,899 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:41:54,899 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:41:54,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:41:54,900 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:41:54,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:41:54,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:41:54,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:41:54,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:41:54,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:41:54,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:41:54,905 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:41:54,905 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:41:54,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:41:54,906 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:41:54,906 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:41:54,906 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:41:54,907 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_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 199c7a46b756091bf3eb8b2dd1ac46d4cc123e50a50bc65aad9ff531c4b58043 [2021-10-29 04:41:55,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:41:55,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:41:55,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:41:55,368 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:41:55,369 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:41:55,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/loop-crafted/simple_vardep_1.c [2021-10-29 04:41:55,459 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/bin/utaipan-SDwSMHVbGG/data/e1d12c1de/be9cc3e23b7b4ef58329b44b465a6483/FLAG920a842d1 [2021-10-29 04:41:56,151 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:41:56,153 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/sv-benchmarks/c/loop-crafted/simple_vardep_1.c [2021-10-29 04:41:56,167 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/bin/utaipan-SDwSMHVbGG/data/e1d12c1de/be9cc3e23b7b4ef58329b44b465a6483/FLAG920a842d1 [2021-10-29 04:41:56,520 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/bin/utaipan-SDwSMHVbGG/data/e1d12c1de/be9cc3e23b7b4ef58329b44b465a6483 [2021-10-29 04:41:56,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:41:56,526 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:41:56,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:41:56,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:41:56,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:41:56,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:41:56" (1/1) ... [2021-10-29 04:41:56,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6db3adad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:56, skipping insertion in model container [2021-10-29 04:41:56,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:41:56" (1/1) ... [2021-10-29 04:41:56,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:41:56,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:41:56,770 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_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/sv-benchmarks/c/loop-crafted/simple_vardep_1.c[584,597] [2021-10-29 04:41:56,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:41:56,802 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:41:56,817 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_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/sv-benchmarks/c/loop-crafted/simple_vardep_1.c[584,597] [2021-10-29 04:41:56,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:41:56,843 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:41:56,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:56 WrapperNode [2021-10-29 04:41:56,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:41:56,846 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:41:56,846 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:41:56,846 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:41:56,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:56" (1/1) ... [2021-10-29 04:41:56,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:56" (1/1) ... [2021-10-29 04:41:56,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:41:56,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:41:56,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:41:56,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:41:56,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:56" (1/1) ... [2021-10-29 04:41:56,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:56" (1/1) ... [2021-10-29 04:41:56,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:56" (1/1) ... [2021-10-29 04:41:56,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:56" (1/1) ... [2021-10-29 04:41:56,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:56" (1/1) ... [2021-10-29 04:41:56,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:56" (1/1) ... [2021-10-29 04:41:56,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:56" (1/1) ... [2021-10-29 04:41:56,929 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:41:56,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:41:56,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:41:56,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:41:56,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:56" (1/1) ... [2021-10-29 04:41:56,944 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:41:56,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:41:57,000 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:41:57,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:41:57,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:41:57,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:41:57,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:41:57,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:41:57,460 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:41:57,460 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-29 04:41:57,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:41:57 BoogieIcfgContainer [2021-10-29 04:41:57,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:41:57,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:41:57,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:41:57,471 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:41:57,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:41:56" (1/3) ... [2021-10-29 04:41:57,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50349fdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:41:57, skipping insertion in model container [2021-10-29 04:41:57,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:56" (2/3) ... [2021-10-29 04:41:57,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50349fdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:41:57, skipping insertion in model container [2021-10-29 04:41:57,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:41:57" (3/3) ... [2021-10-29 04:41:57,490 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_vardep_1.c [2021-10-29 04:41:57,497 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:41:57,497 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 04:41:57,605 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:41:57,614 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 04:41:57,614 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 04:41:57,632 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:41:57,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 04:41:57,637 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:41:57,638 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-29 04:41:57,639 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:41:57,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:41:57,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1738899, now seen corresponding path program 1 times [2021-10-29 04:41:57,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:41:57,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920195744] [2021-10-29 04:41:57,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:41:57,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:41:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:41:58,094 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 04:41:58,095 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:41:58,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920195744] [2021-10-29 04:41:58,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920195744] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:41:58,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:41:58,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:41:58,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064612562] [2021-10-29 04:41:58,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:41:58,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:41:58,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:41:58,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:41:58,142 INFO L87 Difference]: Start difference. First operand has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:41:58,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:41:58,193 INFO L93 Difference]: Finished difference Result 13 states and 17 transitions. [2021-10-29 04:41:58,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:41:58,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-29 04:41:58,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:41:58,207 INFO L225 Difference]: With dead ends: 13 [2021-10-29 04:41:58,208 INFO L226 Difference]: Without dead ends: 7 [2021-10-29 04:41:58,213 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:41:58,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-10-29 04:41:58,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-29 04:41:58,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:41:58,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2021-10-29 04:41:58,254 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2021-10-29 04:41:58,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:41:58,256 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2021-10-29 04:41:58,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:41:58,256 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2021-10-29 04:41:58,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 04:41:58,257 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:41:58,257 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2021-10-29 04:41:58,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 04:41:58,259 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:41:58,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:41:58,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1671226539, now seen corresponding path program 1 times [2021-10-29 04:41:58,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:41:58,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437109671] [2021-10-29 04:41:58,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:41:58,267 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:41:58,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:41:58,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:41:58,660 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:41:58,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437109671] [2021-10-29 04:41:58,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437109671] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 04:41:58,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390827131] [2021-10-29 04:41:58,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:41:58,662 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:41:58,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:41:58,675 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:41:58,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 04:41:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:41:58,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-29 04:41:58,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:41:59,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:41:59,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:41:59,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:41:59,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390827131] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:41:59,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2121692640] [2021-10-29 04:41:59,597 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-10-29 04:41:59,597 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 04:41:59,602 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 04:41:59,609 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 04:41:59,610 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 04:41:59,643 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:41:59,652 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:41:59,653 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:41:59,654 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-29 04:41:59,655 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:41:59,656 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:41:59,657 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 04:41:59,660 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-10-29 04:41:59,687 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_9|], 21=[|v_#valid_10|]} [2021-10-29 04:41:59,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:41:59,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:41:59,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:41:59,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 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 04:41:59,716 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:41:59,717 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:41:59,719 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:41:59,719 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:41:59,720 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:41:59,722 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:41:59,782 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:41:59,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:41:59,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:41:59,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:41:59,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:41:59,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:41:59,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:41:59,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:41:59,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:41:59,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:41:59,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-29 04:41:59,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:41:59,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 04:41:59,838 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:41:59,840 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 04:41:59,841 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 04:41:59,841 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:41:59,881 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:41:59,892 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:41:59,895 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-10-29 04:41:59,896 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 04:41:59,897 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:125, output treesize:100 [2021-10-29 04:41:59,912 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:41:59,927 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-10-29 04:41:59,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:41:59,989 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:41:59,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:41:59,994 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:41:59,997 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:42:00,017 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:42:00,045 INFO L180 QuantifierPusher]: treesize reduction 30, result has 74.8 percent of original size [2021-10-29 04:42:00,065 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-10-29 04:42:00,089 INFO L180 QuantifierPusher]: treesize reduction 30, result has 74.8 percent of original size [2021-10-29 04:42:00,099 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-10-29 04:42:00,108 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 04:42:00,554 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:42:00,554 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-29 04:42:00,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 9 [2021-10-29 04:42:00,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099372976] [2021-10-29 04:42:00,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-29 04:42:00,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:42:00,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-29 04:42:00,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-10-29 04:42:00,560 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:00,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:42:00,618 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2021-10-29 04:42:00,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 04:42:00,620 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-29 04:42:00,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:42:00,620 INFO L225 Difference]: With dead ends: 8 [2021-10-29 04:42:00,620 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 04:42:00,621 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-10-29 04:42:00,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 04:42:00,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 04:42:00,622 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 04:42:00,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 04:42:00,623 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-10-29 04:42:00,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:42:00,623 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 04:42:00,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:00,623 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 04:42:00,624 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:42:00,628 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:42:00,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:42:00,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:42:00,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 04:42:00,833 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:42:00,882 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 04:42:00,883 INFO L857 garLoopResultBuilder]: For program point L9(lines 9 11) no Hoare annotation was computed. [2021-10-29 04:42:00,883 INFO L853 garLoopResultBuilder]: At program point L9-2(lines 7 27) the Hoare annotation is: (or (and (= ULTIMATE.start_main_~k~0 0) (= ULTIMATE.start_main_~i~0 0) (= ULTIMATE.start_main_~j~0 0)) (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~i~0 (* 4294967296 (div ULTIMATE.start_main_~k~0 4294967296))) (+ (* 4294967296 (div (+ ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~i~0) 4294967296)) ULTIMATE.start_main_~k~0)))) [2021-10-29 04:42:00,884 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 04:42:00,884 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2021-10-29 04:42:00,884 INFO L857 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2021-10-29 04:42:00,888 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 04:42:00,890 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:42:00,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:42:00 BoogieIcfgContainer [2021-10-29 04:42:00,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:42:00,913 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:42:00,913 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:42:00,914 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:42:00,914 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:41:57" (3/4) ... [2021-10-29 04:42:00,919 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:42:00,929 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-29 04:42:00,929 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-29 04:42:00,930 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 04:42:00,930 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:42:00,982 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:42:00,988 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:42:00,989 INFO L168 Benchmark]: Toolchain (without parser) took 4462.45 ms. Allocated memory was 100.7 MB in the beginning and 144.7 MB in the end (delta: 44.0 MB). Free memory was 62.4 MB in the beginning and 60.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 47.3 MB. Max. memory is 16.1 GB. [2021-10-29 04:42:00,991 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 100.7 MB. Free memory was 78.5 MB in the beginning and 78.5 MB in the end (delta: 59.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:42:00,994 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.65 ms. Allocated memory is still 100.7 MB. Free memory was 62.2 MB in the beginning and 52.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:42:00,994 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.13 ms. Allocated memory is still 100.7 MB. Free memory was 52.9 MB in the beginning and 51.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:42:00,999 INFO L168 Benchmark]: Boogie Preprocessor took 36.64 ms. Allocated memory is still 100.7 MB. Free memory was 51.5 MB in the beginning and 50.6 MB in the end (delta: 962.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:42:01,000 INFO L168 Benchmark]: RCFGBuilder took 533.30 ms. Allocated memory was 100.7 MB in the beginning and 144.7 MB in the end (delta: 44.0 MB). Free memory was 50.5 MB in the beginning and 114.7 MB in the end (delta: -64.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:42:01,001 INFO L168 Benchmark]: TraceAbstraction took 3446.44 ms. Allocated memory is still 144.7 MB. Free memory was 114.3 MB in the beginning and 63.7 MB in the end (delta: 50.7 MB). Peak memory consumption was 52.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:42:01,001 INFO L168 Benchmark]: Witness Printer took 74.78 ms. Allocated memory is still 144.7 MB. Free memory was 63.0 MB in the beginning and 60.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:42:01,005 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 100.7 MB. Free memory was 78.5 MB in the beginning and 78.5 MB in the end (delta: 59.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 315.65 ms. Allocated memory is still 100.7 MB. Free memory was 62.2 MB in the beginning and 52.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.13 ms. Allocated memory is still 100.7 MB. Free memory was 52.9 MB in the beginning and 51.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.64 ms. Allocated memory is still 100.7 MB. Free memory was 51.5 MB in the beginning and 50.6 MB in the end (delta: 962.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 533.30 ms. Allocated memory was 100.7 MB in the beginning and 144.7 MB in the end (delta: 44.0 MB). Free memory was 50.5 MB in the beginning and 114.7 MB in the end (delta: -64.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3446.44 ms. Allocated memory is still 144.7 MB. Free memory was 114.3 MB in the beginning and 63.7 MB in the end (delta: 50.7 MB). Peak memory consumption was 52.5 MB. Max. memory is 16.1 GB. * Witness Printer took 74.78 ms. Allocated memory is still 144.7 MB. Free memory was 63.0 MB in the beginning and 60.9 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: 10]: 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, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 6 SDslu, 6 SDs, 0 SdLazy, 19 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=1, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 4 NumberOfFragments, 33 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 21 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 148 SizeOfPredicates, 6 NumberOfNonLiveVariables, 63 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 1/6 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: 7]: Loop Invariant Derived loop invariant: ((k == 0 && i == 0) && j == 0) || (1 <= cond && j + i + 4294967296 * (k / 4294967296) == 4294967296 * ((j + i) / 4294967296) + k) RESULT: Ultimate proved your program to be correct! [2021-10-29 04:42:01,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4e2b6f-f5b0-4492-b6de-5ab3d230b29c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...