./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/mod3.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_2522b4d4-fc4c-465e-835b-274891dda554/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2522b4d4-fc4c-465e-835b-274891dda554/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_2522b4d4-fc4c-465e-835b-274891dda554/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2522b4d4-fc4c-465e-835b-274891dda554/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/mod3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2522b4d4-fc4c-465e-835b-274891dda554/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_2522b4d4-fc4c-465e-835b-274891dda554/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 fb436d6177ee4ab6be6acbe7c4a410005aee8ab3 ................................................................................................................................................................................................................................................................................................................................................................ 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 02:20:50,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:20:50,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:20:50,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:20:50,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:20:50,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:20:50,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:20:50,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:20:50,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:20:50,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:20:50,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:20:50,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:20:50,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:20:50,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:20:50,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:20:50,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:20:50,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:20:50,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:20:50,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:20:50,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:20:50,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:20:50,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:20:50,809 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:20:50,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:20:50,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:20:50,815 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:20:50,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:20:50,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:20:50,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:20:50,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:20:50,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:20:50,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:20:50,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:20:50,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:20:50,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:20:50,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:20:50,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:20:50,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:20:50,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:20:50,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:20:50,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:20:50,832 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2522b4d4-fc4c-465e-835b-274891dda554/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:20:50,866 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:20:50,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:20:50,868 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:20:50,868 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:20:50,869 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:20:50,869 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:20:50,870 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:20:50,870 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:20:50,871 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:20:50,871 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:20:50,872 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:20:50,872 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:20:50,873 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:20:50,873 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:20:50,873 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:20:50,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:20:50,875 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:20:50,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:20:50,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:20:50,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:20:50,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:20:50,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:20:50,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:20:50,884 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:20:50,885 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:20:50,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:20:50,886 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:20:50,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:20:50,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:20:50,887 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:20:50,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:20:50,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:20:50,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:20:50,888 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:20:50,889 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:20:50,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:20:50,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:20:50,890 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:20:50,890 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:20:50,890 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_2522b4d4-fc4c-465e-835b-274891dda554/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2522b4d4-fc4c-465e-835b-274891dda554/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb436d6177ee4ab6be6acbe7c4a410005aee8ab3 [2021-10-11 02:20:51,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:20:51,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:20:51,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:20:51,257 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:20:51,259 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:20:51,260 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2522b4d4-fc4c-465e-835b-274891dda554/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/loop-industry-pattern/mod3.c [2021-10-11 02:20:51,358 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2522b4d4-fc4c-465e-835b-274891dda554/bin/utaipan-WLngWcDbfI/data/e0b758f60/f3b75912f23a470693fd476ced897224/FLAG3843987e6 [2021-10-11 02:20:51,925 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:20:51,926 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2522b4d4-fc4c-465e-835b-274891dda554/sv-benchmarks/c/loop-industry-pattern/mod3.c [2021-10-11 02:20:51,934 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2522b4d4-fc4c-465e-835b-274891dda554/bin/utaipan-WLngWcDbfI/data/e0b758f60/f3b75912f23a470693fd476ced897224/FLAG3843987e6 [2021-10-11 02:20:52,261 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2522b4d4-fc4c-465e-835b-274891dda554/bin/utaipan-WLngWcDbfI/data/e0b758f60/f3b75912f23a470693fd476ced897224 [2021-10-11 02:20:52,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:20:52,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:20:52,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:52,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:20:52,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:20:52,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:52" (1/1) ... [2021-10-11 02:20:52,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ba1fc13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:52, skipping insertion in model container [2021-10-11 02:20:52,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:52" (1/1) ... [2021-10-11 02:20:52,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:20:52,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:20:52,509 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_2522b4d4-fc4c-465e-835b-274891dda554/sv-benchmarks/c/loop-industry-pattern/mod3.c[394,407] [2021-10-11 02:20:52,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:52,534 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:20:52,550 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_2522b4d4-fc4c-465e-835b-274891dda554/sv-benchmarks/c/loop-industry-pattern/mod3.c[394,407] [2021-10-11 02:20:52,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:52,570 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:20:52,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:52 WrapperNode [2021-10-11 02:20:52,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:52,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:20:52,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:20:52,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:20:52,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:52" (1/1) ... [2021-10-11 02:20:52,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:52" (1/1) ... [2021-10-11 02:20:52,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:20:52,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:20:52,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:20:52,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:20:52,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:52" (1/1) ... [2021-10-11 02:20:52,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:52" (1/1) ... [2021-10-11 02:20:52,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:52" (1/1) ... [2021-10-11 02:20:52,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:52" (1/1) ... [2021-10-11 02:20:52,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:52" (1/1) ... [2021-10-11 02:20:52,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:52" (1/1) ... [2021-10-11 02:20:52,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:52" (1/1) ... [2021-10-11 02:20:52,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:20:52,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:20:52,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:20:52,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:20:52,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:52" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2522b4d4-fc4c-465e-835b-274891dda554/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 02:20:52,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:20:52,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:20:52,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:20:52,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:20:53,192 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:20:53,193 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 02:20:53,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:53 BoogieIcfgContainer [2021-10-11 02:20:53,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:20:53,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:20:53,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:20:53,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:20:53,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:20:52" (1/3) ... [2021-10-11 02:20:53,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fb8d336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:20:53, skipping insertion in model container [2021-10-11 02:20:53,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:52" (2/3) ... [2021-10-11 02:20:53,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fb8d336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:20:53, skipping insertion in model container [2021-10-11 02:20:53,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:53" (3/3) ... [2021-10-11 02:20:53,220 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c [2021-10-11 02:20:53,251 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:20:53,255 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:20:53,277 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:20:53,304 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:20:53,305 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:20:53,305 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:20:53,305 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:20:53,306 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:20:53,306 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:20:53,306 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:20:53,306 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:20:53,322 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2021-10-11 02:20:53,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:20:53,327 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:20:53,328 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:20:53,329 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:20:53,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:20:53,335 INFO L82 PathProgramCache]: Analyzing trace with hash 77579833, now seen corresponding path program 1 times [2021-10-11 02:20:53,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:20:53,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080546375] [2021-10-11 02:20:53,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:20:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:20:53,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:20:53,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080546375] [2021-10-11 02:20:53,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:20:53,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:20:53,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164183161] [2021-10-11 02:20:53,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:20:53,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:20:53,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:20:53,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:20:53,578 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 2 states. [2021-10-11 02:20:53,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:20:53,593 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2021-10-11 02:20:53,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:20:53,595 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2021-10-11 02:20:53,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:20:53,603 INFO L225 Difference]: With dead ends: 15 [2021-10-11 02:20:53,604 INFO L226 Difference]: Without dead ends: 7 [2021-10-11 02:20:53,607 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:20:53,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-10-11 02:20:53,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-11 02:20:53,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-11 02:20:53,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2021-10-11 02:20:53,655 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2021-10-11 02:20:53,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:20:53,656 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2021-10-11 02:20:53,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:20:53,657 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2021-10-11 02:20:53,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:20:53,657 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:20:53,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:20:53,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:20:53,658 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:20:53,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:20:53,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1911951346, now seen corresponding path program 1 times [2021-10-11 02:20:53,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:20:53,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023513444] [2021-10-11 02:20:53,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:20:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:20:53,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:20:53,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023513444] [2021-10-11 02:20:53,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:20:53,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:20:53,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593803854] [2021-10-11 02:20:53,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:20:53,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:20:53,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:20:53,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:20:53,866 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 3 states. [2021-10-11 02:20:53,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:20:53,879 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-10-11 02:20:53,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:20:53,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2021-10-11 02:20:53,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:20:53,880 INFO L225 Difference]: With dead ends: 13 [2021-10-11 02:20:53,881 INFO L226 Difference]: Without dead ends: 9 [2021-10-11 02:20:53,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:20:53,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-11 02:20:53,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-11 02:20:53,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-11 02:20:53,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-10-11 02:20:53,886 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2021-10-11 02:20:53,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:20:53,887 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-10-11 02:20:53,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:20:53,887 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-10-11 02:20:53,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:20:53,888 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:20:53,888 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-11 02:20:53,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:20:53,889 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:20:53,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:20:53,890 INFO L82 PathProgramCache]: Analyzing trace with hash -2028493607, now seen corresponding path program 1 times [2021-10-11 02:20:53,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:20:53,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683440373] [2021-10-11 02:20:53,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:20:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:20:54,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:20:54,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683440373] [2021-10-11 02:20:54,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:20:54,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:20:54,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646772698] [2021-10-11 02:20:54,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:20:54,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:20:54,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:20:54,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:20:54,414 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2021-10-11 02:20:54,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:20:54,468 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2021-10-11 02:20:54,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:20:54,468 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2021-10-11 02:20:54,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:20:54,469 INFO L225 Difference]: With dead ends: 9 [2021-10-11 02:20:54,469 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:20:54,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:20:54,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:20:54,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:20:54,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:20:54,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:20:54,472 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-10-11 02:20:54,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:20:54,473 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:20:54,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:20:54,473 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:20:54,473 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:20:54,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:20:54,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:20:54,506 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:20:54,509 INFO L258 CegarLoopResult]: At program point L25-2(lines 18 31) the Hoare annotation is: (or (<= ULTIMATE.start_main_~x~0 (let ((.cse2 (div ULTIMATE.start_main_~x~0 4294967296))) (let ((.cse1 (* .cse2 (- 4294967296)))) (let ((.cse0 (div (+ ULTIMATE.start_main_~x~0 .cse1) 3))) (+ (* 3 .cse0) (* 4294967296 (div (+ (* .cse0 (- 3)) ULTIMATE.start_main_~x~0 .cse1) 4294967296)) (* 4294967296 .cse2)))))) (= ULTIMATE.start_main_~y~0 1)) [2021-10-11 02:20:54,510 INFO L262 CegarLoopResult]: For program point L9(lines 9 10) no Hoare annotation was computed. [2021-10-11 02:20:54,510 INFO L265 CegarLoopResult]: At program point L32(lines 32 33) the Hoare annotation is: true [2021-10-11 02:20:54,511 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:20:54,511 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2021-10-11 02:20:54,512 INFO L262 CegarLoopResult]: For program point L18-1(lines 18 31) no Hoare annotation was computed. [2021-10-11 02:20:54,512 INFO L262 CegarLoopResult]: For program point L18-3(lines 14 35) no Hoare annotation was computed. [2021-10-11 02:20:54,512 INFO L262 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2021-10-11 02:20:54,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:20:54 BoogieIcfgContainer [2021-10-11 02:20:54,545 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:20:54,546 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:20:54,547 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:20:54,547 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:20:54,548 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:53" (3/4) ... [2021-10-11 02:20:54,552 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:20:54,565 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-11 02:20:54,565 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-11 02:20:54,566 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-11 02:20:54,566 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:20:54,566 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:20:54,633 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2522b4d4-fc4c-465e-835b-274891dda554/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:20:54,640 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:20:54,643 INFO L168 Benchmark]: Toolchain (without parser) took 2371.94 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 68.1 MB in the beginning and 61.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 30.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:54,643 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 96.5 MB. Free memory is still 55.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:20:54,645 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.59 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 67.8 MB in the beginning and 96.9 MB in the end (delta: -29.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:54,645 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.79 ms. Allocated memory is still 119.5 MB. Free memory was 96.4 MB in the beginning and 95.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:54,647 INFO L168 Benchmark]: Boogie Preprocessor took 29.35 ms. Allocated memory is still 119.5 MB. Free memory was 95.2 MB in the beginning and 94.3 MB in the end (delta: 966.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:20:54,647 INFO L168 Benchmark]: RCFGBuilder took 551.11 ms. Allocated memory is still 119.5 MB. Free memory was 93.8 MB in the beginning and 75.9 MB in the end (delta: 17.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:54,652 INFO L168 Benchmark]: TraceAbstraction took 1347.20 ms. Allocated memory is still 119.5 MB. Free memory was 75.4 MB in the beginning and 64.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:54,653 INFO L168 Benchmark]: Witness Printer took 93.65 ms. Allocated memory is still 119.5 MB. Free memory was 64.4 MB in the beginning and 61.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:54,658 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 96.5 MB. Free memory is still 55.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 294.59 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 67.8 MB in the beginning and 96.9 MB in the end (delta: -29.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.79 ms. Allocated memory is still 119.5 MB. Free memory was 96.4 MB in the beginning and 95.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.35 ms. Allocated memory is still 119.5 MB. Free memory was 95.2 MB in the beginning and 94.3 MB in the end (delta: 966.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 551.11 ms. Allocated memory is still 119.5 MB. Free memory was 93.8 MB in the beginning and 75.9 MB in the end (delta: 17.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1347.20 ms. Allocated memory is still 119.5 MB. Free memory was 75.4 MB in the beginning and 64.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 93.65 ms. Allocated memory is still 119.5 MB. Free memory was 64.4 MB in the beginning and 61.5 MB in the end (delta: 2.9 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: 10]: 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 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: x <= 3 * ((x + x / 4294967296 * -4294967296) / 3) + 4294967296 * (((x + x / 4294967296 * -4294967296) / 3 * -3 + x + x / 4294967296 * -4294967296) / 4294967296) + 4294967296 * (x / 4294967296) || y == 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 1 SDslu, 7 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 46 HoareAnnotationTreeSize, 2 FomulaSimplifications, 54 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 1155 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...