./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_addbf1f3-7b87-4d4c-b432-b8a548d1d235/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_addbf1f3-7b87-4d4c-b432-b8a548d1d235/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_addbf1f3-7b87-4d4c-b432-b8a548d1d235/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_addbf1f3-7b87-4d4c-b432-b8a548d1d235/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_addbf1f3-7b87-4d4c-b432-b8a548d1d235/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_addbf1f3-7b87-4d4c-b432-b8a548d1d235/bin/utaipan-WLngWcDbfI --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 88db4f899985533bd0eb44a0b6d1dd6eb09600fb ..................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:31:50,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:31:50,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:31:50,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:31:50,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:31:50,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:31:50,879 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:31:50,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:31:50,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:31:50,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:31:50,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:31:50,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:31:50,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:31:50,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:31:50,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:31:50,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:31:50,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:31:50,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:31:50,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:31:50,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:31:50,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:31:50,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:31:50,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:31:50,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:31:50,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:31:50,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:31:50,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:31:50,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:31:50,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:31:50,941 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:31:50,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:31:50,942 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:31:50,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:31:50,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:31:50,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:31:50,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:31:50,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:31:50,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:31:50,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:31:50,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:31:50,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:31:50,952 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_addbf1f3-7b87-4d4c-b432-b8a548d1d235/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:31:50,992 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:31:50,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:31:50,994 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:31:50,994 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:31:50,994 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:31:50,995 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:31:50,995 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:31:50,995 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:31:51,001 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:31:51,002 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:31:51,003 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:31:51,003 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:31:51,004 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:31:51,004 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:31:51,004 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:31:51,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:31:51,005 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:31:51,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:31:51,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:31:51,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:31:51,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:31:51,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:31:51,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:31:51,007 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:31:51,007 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:31:51,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:31:51,007 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:31:51,008 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:31:51,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:31:51,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:31:51,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:31:51,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:31:51,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:31:51,009 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:31:51,009 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:31:51,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:31:51,010 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:31:51,010 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:31:51,010 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:31:51,011 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_addbf1f3-7b87-4d4c-b432-b8a548d1d235/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_addbf1f3-7b87-4d4c-b432-b8a548d1d235/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88db4f899985533bd0eb44a0b6d1dd6eb09600fb [2021-10-11 02:31:51,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:31:51,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:31:51,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:31:51,328 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:31:51,329 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:31:51,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_addbf1f3-7b87-4d4c-b432-b8a548d1d235/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound1.c [2021-10-11 02:31:51,412 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_addbf1f3-7b87-4d4c-b432-b8a548d1d235/bin/utaipan-WLngWcDbfI/data/f3d288a2f/b2c3ab5a98ba44b194861e36c41ad8af/FLAG71aaf4f79 [2021-10-11 02:31:51,819 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:31:51,819 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_addbf1f3-7b87-4d4c-b432-b8a548d1d235/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound1.c [2021-10-11 02:31:51,826 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_addbf1f3-7b87-4d4c-b432-b8a548d1d235/bin/utaipan-WLngWcDbfI/data/f3d288a2f/b2c3ab5a98ba44b194861e36c41ad8af/FLAG71aaf4f79 [2021-10-11 02:31:52,228 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_addbf1f3-7b87-4d4c-b432-b8a548d1d235/bin/utaipan-WLngWcDbfI/data/f3d288a2f/b2c3ab5a98ba44b194861e36c41ad8af [2021-10-11 02:31:52,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:31:52,232 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:31:52,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:52,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:31:52,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:31:52,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fd7b8bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52, skipping insertion in model container [2021-10-11 02:31:52,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:31:52,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:31:52,445 WARN L226 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_addbf1f3-7b87-4d4c-b432-b8a548d1d235/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound1.c[537,550] [2021-10-11 02:31:52,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:52,480 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:31:52,492 WARN L226 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_addbf1f3-7b87-4d4c-b432-b8a548d1d235/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound1.c[537,550] [2021-10-11 02:31:52,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:52,513 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:31:52,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52 WrapperNode [2021-10-11 02:31:52,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:52,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:52,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:31:52,516 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:31:52,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,528 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:52,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:31:52,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:31:52,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:31:52,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:31:52,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:31:52,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:31:52,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:31:52,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_addbf1f3-7b87-4d4c-b432-b8a548d1d235/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:31:52,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:31:52,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:31:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:31:52,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:31:53,230 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:31:53,231 INFO L299 CfgBuilder]: Removed 21 assume(true) statements. [2021-10-11 02:31:53,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:53 BoogieIcfgContainer [2021-10-11 02:31:53,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:31:53,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:31:53,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:31:53,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:31:53,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:31:52" (1/3) ... [2021-10-11 02:31:53,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12163eca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:53, skipping insertion in model container [2021-10-11 02:31:53,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (2/3) ... [2021-10-11 02:31:53,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12163eca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:53, skipping insertion in model container [2021-10-11 02:31:53,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:53" (3/3) ... [2021-10-11 02:31:53,253 INFO L111 eAbstractionObserver]: Analyzing ICFG lcm2_valuebound1.c [2021-10-11 02:31:53,266 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:31:53,269 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:31:53,278 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:31:53,300 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:31:53,300 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:31:53,301 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:31:53,301 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:31:53,301 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:31:53,301 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:31:53,301 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:31:53,301 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:31:53,315 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2021-10-11 02:31:53,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:31:53,321 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:53,321 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:31:53,322 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:53,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:53,328 INFO L82 PathProgramCache]: Analyzing trace with hash 4402213, now seen corresponding path program 1 times [2021-10-11 02:31:53,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:31:53,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715467899] [2021-10-11 02:31:53,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:31:53,445 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:31:53,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [419925252] [2021-10-11 02:31:53,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_addbf1f3-7b87-4d4c-b432-b8a548d1d235/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:31:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:53,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-11 02:31:53,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:53,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715467899] [2021-10-11 02:31:53,767 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:31:53,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419925252] [2021-10-11 02:31:53,769 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: null [2021-10-11 02:31:53,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [108890747] [2021-10-11 02:31:53,814 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-10-11 02:31:53,815 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:31:53,819 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:31:53,823 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:31:53,824 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:31:54,061 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-10-11 02:31:54,166 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:31:54,607 WARN L197 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 99 [2021-10-11 02:31:58,229 WARN L197 SmtUtils]: Spent 3.60 s on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2021-10-11 02:31:58,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:58,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:31:58,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087629379] [2021-10-11 02:31:58,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:31:58,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:31:58,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:31:58,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:31:58,253 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 4 states. [2021-10-11 02:31:58,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:58,327 INFO L93 Difference]: Finished difference Result 19 states and 25 transitions. [2021-10-11 02:31:58,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:31:58,330 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2021-10-11 02:31:58,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:58,336 INFO L225 Difference]: With dead ends: 19 [2021-10-11 02:31:58,336 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:31:58,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:31:58,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:31:58,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:31:58,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:31:58,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:31:58,363 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-10-11 02:31:58,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:58,364 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:31:58,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:31:58,364 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:31:58,364 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:31:58,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-11 02:31:58,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:31:59,355 WARN L197 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-10-11 02:32:00,660 WARN L197 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 112 [2021-10-11 02:32:00,818 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-10-11 02:32:00,821 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 02:32:00,821 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:32:00,822 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 02:32:00,822 INFO L262 CegarLoopResult]: For program point L12(lines 12 15) no Hoare annotation was computed. [2021-10-11 02:32:00,823 INFO L258 CegarLoopResult]: At program point L12-2(lines 40 41) the Hoare annotation is: (let ((.cse1 (mod ULTIMATE.start_main_~a~0 4294967296)) (.cse0 (select |#memory_int| |#t~string5.base|)) (.cse3 (select |#memory_int| |#t~string4.base|)) (.cse2 (mod ULTIMATE.start_main_~b~0 4294967296))) (and (= 46 (select .cse0 (+ |#t~string5.offset| 4))) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~v~0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (= 7 (select |#length| |#t~string5.base|)) (= (select |#valid| 0) 0) (= (ite (= (mod (+ (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~u~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~v~0)) 4294967296) (mod (* (* ULTIMATE.start_main_~a~0 2) ULTIMATE.start_main_~b~0) 4294967296)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond|) (= (select .cse0 (+ |#t~string5.offset| 2)) 109) (= (select |#valid| |#t~string5.base|) 1) (<= .cse1 1) (= (select .cse0 (+ |#t~string5.offset| 6)) 0) (<= 1 .cse2) (= (select |#valid| |#t~string4.base|) 1) (= |#t~string5.offset| 0) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~u~0) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (= |#NULL.offset| 0) (= (select .cse0 (+ |#t~string5.offset| 1)) 99) (= 0 |#t~string4.offset|) (<= 1 .cse1) (= 2 (select |#length| |#t~string4.base|)) (= |#NULL.base| 0) (= (select .cse0 (+ |#t~string5.offset| 3)) 50) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse3 |#t~string4.offset|)) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (= 108 (select .cse0 |#t~string5.offset|)) (= (select .cse0 (+ |#t~string5.offset| 5)) 99) (< |#StackHeapBarrier| |#t~string6.base|) (< |#StackHeapBarrier| |#t~string4.base|) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (< 0 |#StackHeapBarrier|) (= |#t~string6.offset| 0) (= (select .cse3 (+ |#t~string4.offset| 1)) 0) (<= .cse2 1))) [2021-10-11 02:32:00,823 INFO L262 CegarLoopResult]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2021-10-11 02:32:00,824 INFO L258 CegarLoopResult]: At program point L12-5(lines 11 17) the Hoare annotation is: (let ((.cse1 (mod ULTIMATE.start_main_~a~0 4294967296)) (.cse0 (select |#memory_int| |#t~string5.base|)) (.cse3 (select |#memory_int| |#t~string4.base|)) (.cse2 (mod ULTIMATE.start_main_~b~0 4294967296))) (and (= 46 (select .cse0 (+ |#t~string5.offset| 4))) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~v~0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (= 7 (select |#length| |#t~string5.base|)) (= (select |#valid| 0) 0) (= (ite (= (mod (+ (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~u~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~v~0)) 4294967296) (mod (* (* ULTIMATE.start_main_~a~0 2) ULTIMATE.start_main_~b~0) 4294967296)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond|) (= (select .cse0 (+ |#t~string5.offset| 2)) 109) (= (select |#valid| |#t~string5.base|) 1) (<= .cse1 1) (= (select .cse0 (+ |#t~string5.offset| 6)) 0) (<= 1 .cse2) (= (select |#valid| |#t~string4.base|) 1) (= |#t~string5.offset| 0) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~u~0) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (= |#NULL.offset| 0) (= (select .cse0 (+ |#t~string5.offset| 1)) 99) (= 0 |#t~string4.offset|) (<= 1 .cse1) (= 2 (select |#length| |#t~string4.base|)) (= |#NULL.base| 0) (= (select .cse0 (+ |#t~string5.offset| 3)) 50) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse3 |#t~string4.offset|)) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (= 108 (select .cse0 |#t~string5.offset|)) (= (select .cse0 (+ |#t~string5.offset| 5)) 99) (< |#StackHeapBarrier| |#t~string6.base|) (< |#StackHeapBarrier| |#t~string4.base|) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (< 0 |#StackHeapBarrier|) (= |#t~string6.offset| 0) (= (select .cse3 (+ |#t~string4.offset| 1)) 0) (<= .cse2 1))) [2021-10-11 02:32:00,824 INFO L262 CegarLoopResult]: For program point L37-2(lines 37 50) no Hoare annotation was computed. [2021-10-11 02:32:00,824 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:32:00,824 INFO L262 CegarLoopResult]: For program point L13(lines 13 14) no Hoare annotation was computed. [2021-10-11 02:32:00,825 INFO L262 CegarLoopResult]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2021-10-11 02:32:00,825 INFO L258 CegarLoopResult]: At program point L43-2(lines 37 50) the Hoare annotation is: (let ((.cse1 (mod ULTIMATE.start_main_~a~0 4294967296)) (.cse0 (select |#memory_int| |#t~string5.base|)) (.cse3 (select |#memory_int| |#t~string4.base|)) (.cse2 (mod ULTIMATE.start_main_~b~0 4294967296))) (and (= 46 (select .cse0 (+ |#t~string5.offset| 4))) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~v~0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (= 7 (select |#length| |#t~string5.base|)) (= (select |#valid| 0) 0) (= (select .cse0 (+ |#t~string5.offset| 2)) 109) (= (select |#valid| |#t~string5.base|) 1) (<= .cse1 1) (= (select .cse0 (+ |#t~string5.offset| 6)) 0) (<= 1 .cse2) (= (select |#valid| |#t~string4.base|) 1) (= |#t~string5.offset| 0) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~u~0) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (= |#NULL.offset| 0) (= (select .cse0 (+ |#t~string5.offset| 1)) 99) (= 0 |#t~string4.offset|) (<= 1 .cse1) (= 2 (select |#length| |#t~string4.base|)) (= |#NULL.base| 0) (= (select .cse0 (+ |#t~string5.offset| 3)) 50) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse3 |#t~string4.offset|)) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (= 108 (select .cse0 |#t~string5.offset|)) (= (select .cse0 (+ |#t~string5.offset| 5)) 99) (< |#StackHeapBarrier| |#t~string6.base|) (< |#StackHeapBarrier| |#t~string4.base|) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (< 0 |#StackHeapBarrier|) (= |#t~string6.offset| 0) (= (select .cse3 (+ |#t~string4.offset| 1)) 0) (<= .cse2 1))) [2021-10-11 02:32:00,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:32:00 BoogieIcfgContainer [2021-10-11 02:32:00,870 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:32:00,871 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:32:00,871 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:32:00,871 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:32:00,872 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:53" (3/4) ... [2021-10-11 02:32:00,875 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:32:00,893 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2021-10-11 02:32:00,894 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-11 02:32:00,898 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:32:00,898 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:32:00,899 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:32:00,927 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((((((46 == unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 4] && a == v) && a == x) && 7 == unknown-#length-unknown["lcm2.c"]) && \valid[0] == 0) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 2] == 109) && \valid["lcm2.c"] == 1) && a % 4294967296 <= 1) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 6] == 0) && 1 <= b % 4294967296) && \valid["0"] == 1) && "lcm2.c" == 0) && b == u) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "lcm2.c") && #NULL == 0) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 1] == 99) && 0 == "0") && 1 <= a % 4294967296) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 3] == 50) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && b == y) && \old(cond) == 1) && 108 == unknown-#memory_int-unknown["lcm2.c"]["lcm2.c"]) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 5] == 99) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && b % 4294967296 <= 1 [2021-10-11 02:32:00,928 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((((((((46 == unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 4] && \old(cond) == cond) && a == v) && a == x) && 7 == unknown-#length-unknown["lcm2.c"]) && \valid[0] == 0) && (if (x * u + y * v) % 4294967296 == a * 2 * b % 4294967296 then 1 else 0) == \old(cond)) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 2] == 109) && \valid["lcm2.c"] == 1) && a % 4294967296 <= 1) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 6] == 0) && 1 <= b % 4294967296) && \valid["0"] == 1) && "lcm2.c" == 0) && b == u) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "lcm2.c") && #NULL == 0) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 1] == 99) && 0 == "0") && 1 <= a % 4294967296) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 3] == 50) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && b == y) && \old(cond) == 1) && 108 == unknown-#memory_int-unknown["lcm2.c"]["lcm2.c"]) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 5] == 99) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && b % 4294967296 <= 1 [2021-10-11 02:32:00,928 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((((((((46 == unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 4] && \old(cond) == cond) && a == v) && a == x) && 7 == unknown-#length-unknown["lcm2.c"]) && \valid[0] == 0) && (if (x * u + y * v) % 4294967296 == a * 2 * b % 4294967296 then 1 else 0) == \old(cond)) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 2] == 109) && \valid["lcm2.c"] == 1) && a % 4294967296 <= 1) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 6] == 0) && 1 <= b % 4294967296) && \valid["0"] == 1) && "lcm2.c" == 0) && b == u) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "lcm2.c") && #NULL == 0) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 1] == 99) && 0 == "0") && 1 <= a % 4294967296) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 3] == 50) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && b == y) && \old(cond) == 1) && 108 == unknown-#memory_int-unknown["lcm2.c"]["lcm2.c"]) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 5] == 99) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && b % 4294967296 <= 1 [2021-10-11 02:32:00,972 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_addbf1f3-7b87-4d4c-b432-b8a548d1d235/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:32:00,973 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:32:00,977 INFO L168 Benchmark]: Toolchain (without parser) took 8741.54 ms. Allocated memory was 121.6 MB in the beginning and 151.0 MB in the end (delta: 29.4 MB). Free memory was 78.7 MB in the beginning and 81.9 MB in the end (delta: -3.3 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:00,979 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 121.6 MB. Free memory is still 95.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:00,979 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.97 ms. Allocated memory is still 121.6 MB. Free memory was 78.5 MB in the beginning and 94.7 MB in the end (delta: -16.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:00,980 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.54 ms. Allocated memory is still 121.6 MB. Free memory was 94.7 MB in the beginning and 93.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:00,980 INFO L168 Benchmark]: Boogie Preprocessor took 31.25 ms. Allocated memory is still 121.6 MB. Free memory was 93.1 MB in the beginning and 91.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:00,980 INFO L168 Benchmark]: RCFGBuilder took 639.33 ms. Allocated memory is still 121.6 MB. Free memory was 91.9 MB in the beginning and 62.5 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:00,980 INFO L168 Benchmark]: TraceAbstraction took 7634.82 ms. Allocated memory was 121.6 MB in the beginning and 151.0 MB in the end (delta: 29.4 MB). Free memory was 62.2 MB in the beginning and 85.1 MB in the end (delta: -22.9 MB). Peak memory consumption was 55.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:00,981 INFO L168 Benchmark]: Witness Printer took 102.15 ms. Allocated memory is still 151.0 MB. Free memory was 85.1 MB in the beginning and 81.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:00,983 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 121.6 MB. Free memory is still 95.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 273.97 ms. Allocated memory is still 121.6 MB. Free memory was 78.5 MB in the beginning and 94.7 MB in the end (delta: -16.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.54 ms. Allocated memory is still 121.6 MB. Free memory was 94.7 MB in the beginning and 93.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.25 ms. Allocated memory is still 121.6 MB. Free memory was 93.1 MB in the beginning and 91.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 639.33 ms. Allocated memory is still 121.6 MB. Free memory was 91.9 MB in the beginning and 62.5 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7634.82 ms. Allocated memory was 121.6 MB in the beginning and 151.0 MB in the end (delta: 29.4 MB). Free memory was 62.2 MB in the beginning and 85.1 MB in the end (delta: -22.9 MB). Peak memory consumption was 55.7 MB. Max. memory is 16.1 GB. * Witness Printer took 102.15 ms. Allocated memory is still 151.0 MB. Free memory was 85.1 MB in the beginning and 81.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((46 == unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 4] && \old(cond) == cond) && a == v) && a == x) && 7 == unknown-#length-unknown["lcm2.c"]) && \valid[0] == 0) && (if (x * u + y * v) % 4294967296 == a * 2 * b % 4294967296 then 1 else 0) == \old(cond)) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 2] == 109) && \valid["lcm2.c"] == 1) && a % 4294967296 <= 1) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 6] == 0) && 1 <= b % 4294967296) && \valid["0"] == 1) && "lcm2.c" == 0) && b == u) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "lcm2.c") && #NULL == 0) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 1] == 99) && 0 == "0") && 1 <= a % 4294967296) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 3] == 50) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && b == y) && \old(cond) == 1) && 108 == unknown-#memory_int-unknown["lcm2.c"]["lcm2.c"]) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 5] == 99) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && b % 4294967296 <= 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((46 == unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 4] && \old(cond) == cond) && a == v) && a == x) && 7 == unknown-#length-unknown["lcm2.c"]) && \valid[0] == 0) && (if (x * u + y * v) % 4294967296 == a * 2 * b % 4294967296 then 1 else 0) == \old(cond)) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 2] == 109) && \valid["lcm2.c"] == 1) && a % 4294967296 <= 1) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 6] == 0) && 1 <= b % 4294967296) && \valid["0"] == 1) && "lcm2.c" == 0) && b == u) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "lcm2.c") && #NULL == 0) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 1] == 99) && 0 == "0") && 1 <= a % 4294967296) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 3] == 50) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && b == y) && \old(cond) == 1) && 108 == unknown-#memory_int-unknown["lcm2.c"]["lcm2.c"]) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 5] == 99) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && b % 4294967296 <= 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((46 == unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 4] && a == v) && a == x) && 7 == unknown-#length-unknown["lcm2.c"]) && \valid[0] == 0) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 2] == 109) && \valid["lcm2.c"] == 1) && a % 4294967296 <= 1) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 6] == 0) && 1 <= b % 4294967296) && \valid["0"] == 1) && "lcm2.c" == 0) && b == u) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "lcm2.c") && #NULL == 0) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 1] == 99) && 0 == "0") && 1 <= a % 4294967296) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 3] == 50) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && b == y) && \old(cond) == 1) && 108 == unknown-#memory_int-unknown["lcm2.c"]["lcm2.c"]) && unknown-#memory_int-unknown["lcm2.c"]["lcm2.c" + 5] == 99) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && b % 4294967296 <= 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 SDtfs, 9 SDslu, 0 SDs, 0 SdLazy, 6 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 584 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME[ms]: 352, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 4, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 3, TOOLS_POST_TIME[ms]: 300, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 3, TOOLS_QUANTIFIERELIM_TIME[ms]: 296, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 296, FLUID_QUERY_TIME[ms]: 2, FLUID_QUERIES: 7, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME[ms]: 0, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME[ms]: 0, DOMAIN_ISBOTTOM_APPLICATIONS: 4, DOMAIN_ISBOTTOM_TIME[ms]: 17, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 0, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 2, PATH_EXPR_TIME[ms]: 2, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 5, DAG_COMPRESSION_PROCESSED_NODES: 19, DAG_COMPRESSION_RETAINED_NODES: 13, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...