./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/cggmp2005b.i --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_97880f2e-3e60-41f0-adc1-338594167882/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97880f2e-3e60-41f0-adc1-338594167882/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_97880f2e-3e60-41f0-adc1-338594167882/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97880f2e-3e60-41f0-adc1-338594167882/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97880f2e-3e60-41f0-adc1-338594167882/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_97880f2e-3e60-41f0-adc1-338594167882/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 fef737e6ce8f4d154b70d44967f8d8c87159a2fe ......................................................................................................................................................................................................................................................................................................................................................................................... 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 02:31:33,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:31:33,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:31:33,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:31:33,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:31:33,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:31:33,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:31:33,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:31:33,143 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:31:33,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:31:33,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:31:33,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:31:33,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:31:33,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:31:33,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:31:33,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:31:33,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:31:33,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:31:33,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:31:33,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:31:33,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:31:33,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:31:33,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:31:33,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:31:33,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:31:33,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:31:33,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:31:33,195 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:31:33,195 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:31:33,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:31:33,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:31:33,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:31:33,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:31:33,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:31:33,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:31:33,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:31:33,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:31:33,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:31:33,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:31:33,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:31:33,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:31:33,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97880f2e-3e60-41f0-adc1-338594167882/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:31:33,250 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:31:33,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:31:33,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:31:33,251 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:31:33,251 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:31:33,251 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:31:33,252 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:31:33,252 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:31:33,252 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:31:33,252 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:31:33,252 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:31:33,252 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:31:33,253 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:31:33,256 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:31:33,256 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:31:33,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:31:33,257 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:31:33,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:31:33,258 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:31:33,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:31:33,258 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:31:33,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:31:33,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:31:33,259 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:31:33,259 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:31:33,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:31:33,259 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:31:33,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:31:33,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:31:33,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:31:33,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:31:33,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:31:33,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:31:33,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:31:33,264 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:31:33,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:31:33,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:31:33,265 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:31:33,266 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:31:33,266 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_97880f2e-3e60-41f0-adc1-338594167882/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97880f2e-3e60-41f0-adc1-338594167882/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fef737e6ce8f4d154b70d44967f8d8c87159a2fe [2021-10-11 02:31:33,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:31:33,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:31:33,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:31:33,544 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:31:33,549 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:31:33,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97880f2e-3e60-41f0-adc1-338594167882/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/loop-lit/cggmp2005b.i [2021-10-11 02:31:33,640 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97880f2e-3e60-41f0-adc1-338594167882/bin/utaipan-WLngWcDbfI/data/6baf89ead/e7f9009ef89646dfa45615638da07b96/FLAGad229b03b [2021-10-11 02:31:34,074 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:31:34,074 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97880f2e-3e60-41f0-adc1-338594167882/sv-benchmarks/c/loop-lit/cggmp2005b.i [2021-10-11 02:31:34,081 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97880f2e-3e60-41f0-adc1-338594167882/bin/utaipan-WLngWcDbfI/data/6baf89ead/e7f9009ef89646dfa45615638da07b96/FLAGad229b03b [2021-10-11 02:31:34,456 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97880f2e-3e60-41f0-adc1-338594167882/bin/utaipan-WLngWcDbfI/data/6baf89ead/e7f9009ef89646dfa45615638da07b96 [2021-10-11 02:31:34,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:31:34,460 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:31:34,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:34,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:31:34,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:31:34,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:34" (1/1) ... [2021-10-11 02:31:34,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6863347f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:34, skipping insertion in model container [2021-10-11 02:31:34,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:34" (1/1) ... [2021-10-11 02:31:34,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:31:34,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:31:34,663 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_97880f2e-3e60-41f0-adc1-338594167882/sv-benchmarks/c/loop-lit/cggmp2005b.i[895,908] [2021-10-11 02:31:34,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:34,681 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:31:34,694 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_97880f2e-3e60-41f0-adc1-338594167882/sv-benchmarks/c/loop-lit/cggmp2005b.i[895,908] [2021-10-11 02:31:34,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:34,711 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:31:34,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:34 WrapperNode [2021-10-11 02:31:34,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:34,713 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:34,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:31:34,713 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:31:34,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:34" (1/1) ... [2021-10-11 02:31:34,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:34" (1/1) ... [2021-10-11 02:31:34,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:34,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:31:34,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:31:34,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:31:34,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:34" (1/1) ... [2021-10-11 02:31:34,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:34" (1/1) ... [2021-10-11 02:31:34,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:34" (1/1) ... [2021-10-11 02:31:34,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:34" (1/1) ... [2021-10-11 02:31:34,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:34" (1/1) ... [2021-10-11 02:31:34,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:34" (1/1) ... [2021-10-11 02:31:34,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:34" (1/1) ... [2021-10-11 02:31:34,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:31:34,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:31:34,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:31:34,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:31:34,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:34" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97880f2e-3e60-41f0-adc1-338594167882/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 02:31:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:31:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:31:34,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:31:34,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:31:35,088 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:31:35,089 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-11 02:31:35,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:35 BoogieIcfgContainer [2021-10-11 02:31:35,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:31:35,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:31:35,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:31:35,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:31:35,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:31:34" (1/3) ... [2021-10-11 02:31:35,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f36d4c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:35, skipping insertion in model container [2021-10-11 02:31:35,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:34" (2/3) ... [2021-10-11 02:31:35,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f36d4c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:35, skipping insertion in model container [2021-10-11 02:31:35,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:35" (3/3) ... [2021-10-11 02:31:35,105 INFO L111 eAbstractionObserver]: Analyzing ICFG cggmp2005b.i [2021-10-11 02:31:35,134 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:31:35,137 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:31:35,151 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:31:35,193 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:31:35,203 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:31:35,203 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:31:35,203 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:31:35,203 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:31:35,204 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:31:35,204 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:31:35,204 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:31:35,216 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2021-10-11 02:31:35,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:31:35,224 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:35,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:31:35,225 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:35,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:35,231 INFO L82 PathProgramCache]: Analyzing trace with hash 2620103, now seen corresponding path program 1 times [2021-10-11 02:31:35,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:31:35,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579141705] [2021-10-11 02:31:35,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:31:35,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:35,416 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 02:31:35,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579141705] [2021-10-11 02:31:35,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:35,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:31:35,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963355067] [2021-10-11 02:31:35,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:31:35,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:31:35,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:31:35,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:35,455 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2021-10-11 02:31:35,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:35,478 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2021-10-11 02:31:35,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:31:35,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2021-10-11 02:31:35,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:35,488 INFO L225 Difference]: With dead ends: 15 [2021-10-11 02:31:35,489 INFO L226 Difference]: Without dead ends: 8 [2021-10-11 02:31:35,491 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 02:31:35,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-10-11 02:31:35,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-10-11 02:31:35,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-11 02:31:35,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2021-10-11 02:31:35,522 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 10 transitions. Word has length 4 [2021-10-11 02:31:35,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:35,522 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-10-11 02:31:35,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:31:35,522 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2021-10-11 02:31:35,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:31:35,523 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:35,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:35,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:31:35,524 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:35,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:35,525 INFO L82 PathProgramCache]: Analyzing trace with hash -610070262, now seen corresponding path program 1 times [2021-10-11 02:31:35,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:31:35,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588538818] [2021-10-11 02:31:35,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:31:35,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:35,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:31:35,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588538818] [2021-10-11 02:31:35,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:35,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:31:35,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098855] [2021-10-11 02:31:35,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:31:35,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:31:35,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:31:35,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:35,563 INFO L87 Difference]: Start difference. First operand 8 states and 10 transitions. Second operand 3 states. [2021-10-11 02:31:35,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:35,571 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2021-10-11 02:31:35,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:31:35,572 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2021-10-11 02:31:35,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:35,572 INFO L225 Difference]: With dead ends: 15 [2021-10-11 02:31:35,573 INFO L226 Difference]: Without dead ends: 9 [2021-10-11 02:31:35,574 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 02:31:35,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-11 02:31:35,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-11 02:31:35,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-11 02:31:35,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2021-10-11 02:31:35,577 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 7 [2021-10-11 02:31:35,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:35,578 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-10-11 02:31:35,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:31:35,578 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-10-11 02:31:35,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:31:35,579 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:35,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:35,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:31:35,579 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:35,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:35,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1362126208, now seen corresponding path program 1 times [2021-10-11 02:31:35,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:31:35,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950869886] [2021-10-11 02:31:35,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:31:35,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:35,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:31:35,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950869886] [2021-10-11 02:31:35,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129571174] [2021-10-11 02:31:35,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97880f2e-3e60-41f0-adc1-338594167882/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 02:31:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:35,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:31:35,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:35,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:31:35,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:31:35,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:31:35,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [14615385] [2021-10-11 02:31:35,871 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-11 02:31:35,871 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:31:35,877 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:31:35,882 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:31:35,883 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:31:36,866 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:31:37,207 WARN L197 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2021-10-11 02:31:37,454 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 38 [2021-10-11 02:31:37,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2021-10-11 02:31:37,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3, 3, 3] total 10 [2021-10-11 02:31:37,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946074066] [2021-10-11 02:31:37,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:31:37,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:31:37,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:31:37,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-10-11 02:31:37,458 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. Second operand 6 states. [2021-10-11 02:31:37,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:37,496 INFO L93 Difference]: Finished difference Result 14 states and 20 transitions. [2021-10-11 02:31:37,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:31:37,497 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2021-10-11 02:31:37,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:37,497 INFO L225 Difference]: With dead ends: 14 [2021-10-11 02:31:37,497 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:31:37,498 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-10-11 02:31:37,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:31:37,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:31:37,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:31:37,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:31:37,499 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-10-11 02:31:37,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:37,500 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:31:37,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:31:37,500 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:31:37,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:31:37,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-10-11 02:31:37,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:31:37,946 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-10-11 02:31:38,052 INFO L258 CegarLoopResult]: At program point L35-2(lines 35 37) the Hoare annotation is: (and (= |#t~string1.offset| 0) (<= 0 |#t~string0.base|) (<= 20 ULTIMATE.start_main_~j~0) (= |#NULL.base| 0) (<= 1 ULTIMATE.start_main_~i~0) (= |#NULL.offset| 0) (= ULTIMATE.start_main_~k~0 4) (= |#t~string0.offset| 0) (<= 0 |#t~string1.base|) (<= 0 |#StackHeapBarrier|)) [2021-10-11 02:31:38,053 INFO L258 CegarLoopResult]: At program point L35-3(lines 29 38) the Hoare annotation is: (or (let ((.cse1 (select |#memory_int| |#t~string0.base|)) (.cse0 (+ ULTIMATE.start_main_~j~0 100))) (and (<= 0 .cse0) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (= (select .cse1 |#t~string0.offset|) 48) (= (select .cse1 (+ |#t~string0.offset| 1)) 0) (= (select |#valid| 0) 0) (<= 9 ULTIMATE.start_main_~k~0) (= (select |#length| |#t~string1.base|) 9) (= 2 (select |#length| |#t~string0.base|)) (<= |#t~string1.offset| 0) (<= .cse0 0) (<= |#t~string0.offset| 0) (<= 0 |#t~string0.offset|) (= ULTIMATE.start_main_~i~0 0) (<= ULTIMATE.start_main_~k~0 9) (< |#StackHeapBarrier| |#t~string0.base|) (= (select |#valid| |#t~string0.base|) 1) (< 0 |#StackHeapBarrier|) (< |#StackHeapBarrier| |#t~string1.base|) (<= 0 |#t~string1.offset|) (<= 0 |#NULL.base|) (= (select |#valid| |#t~string1.base|) 1) (<= |#NULL.offset| 0))) (and (= |#t~string1.offset| 0) (<= 0 |#t~string0.base|) (<= 20 ULTIMATE.start_main_~j~0) (= |#NULL.base| 0) (<= 1 ULTIMATE.start_main_~i~0) (= |#NULL.offset| 0) (= ULTIMATE.start_main_~k~0 4) (= |#t~string0.offset| 0) (<= 0 |#t~string1.base|) (<= 0 |#StackHeapBarrier|))) [2021-10-11 02:31:38,054 INFO L258 CegarLoopResult]: At program point L31-2(lines 31 33) the Hoare annotation is: (and (<= |#t~string1.offset| 0) (<= 0 |#t~string0.base|) (<= 0 (+ ULTIMATE.start_main_~j~0 100)) (<= ULTIMATE.start_main_~k~0 9) (= |#NULL.base| 0) (<= 1 ULTIMATE.start_main_~i~0) (<= 0 |#t~string1.offset|) (= |#NULL.offset| 0) (= |#t~string0.offset| 0) (<= 0 |#t~string1.base|) (<= 0 |#StackHeapBarrier|)) [2021-10-11 02:31:38,054 INFO L262 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2021-10-11 02:31:38,054 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:31:38,055 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-11 02:31:38,055 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:31:38,055 INFO L262 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2021-10-11 02:31:38,055 INFO L265 CegarLoopResult]: At program point L18-2(lines 17 22) the Hoare annotation is: true [2021-10-11 02:31:38,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:31:38 BoogieIcfgContainer [2021-10-11 02:31:38,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:31:38,116 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:31:38,116 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:31:38,116 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:31:38,117 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:35" (3/4) ... [2021-10-11 02:31:38,120 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:31:38,132 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-10-11 02:31:38,132 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-11 02:31:38,132 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:31:38,133 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:31:38,174 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97880f2e-3e60-41f0-adc1-338594167882/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:31:38,174 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:31:38,175 INFO L168 Benchmark]: Toolchain (without parser) took 3714.93 ms. Allocated memory was 132.1 MB in the beginning and 159.4 MB in the end (delta: 27.3 MB). Free memory was 96.4 MB in the beginning and 127.0 MB in the end (delta: -30.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:31:38,176 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 132.1 MB. Free memory was 105.6 MB in the beginning and 105.6 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:31:38,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.51 ms. Allocated memory is still 132.1 MB. Free memory was 96.4 MB in the beginning and 105.5 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:38,177 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.12 ms. Allocated memory is still 132.1 MB. Free memory was 105.5 MB in the beginning and 104.7 MB in the end (delta: 799.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:31:38,178 INFO L168 Benchmark]: Boogie Preprocessor took 19.80 ms. Allocated memory is still 132.1 MB. Free memory was 104.7 MB in the beginning and 103.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:38,178 INFO L168 Benchmark]: RCFGBuilder took 330.18 ms. Allocated memory is still 132.1 MB. Free memory was 103.4 MB in the beginning and 88.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:38,179 INFO L168 Benchmark]: TraceAbstraction took 3022.55 ms. Allocated memory was 132.1 MB in the beginning and 159.4 MB in the end (delta: 27.3 MB). Free memory was 88.7 MB in the beginning and 129.1 MB in the end (delta: -40.4 MB). Peak memory consumption was 73.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:38,180 INFO L168 Benchmark]: Witness Printer took 58.49 ms. Allocated memory is still 159.4 MB. Free memory was 129.1 MB in the beginning and 127.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:38,183 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 132.1 MB. Free memory was 105.6 MB in the beginning and 105.6 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 250.51 ms. Allocated memory is still 132.1 MB. Free memory was 96.4 MB in the beginning and 105.5 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.12 ms. Allocated memory is still 132.1 MB. Free memory was 105.5 MB in the beginning and 104.7 MB in the end (delta: 799.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.80 ms. Allocated memory is still 132.1 MB. Free memory was 104.7 MB in the beginning and 103.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 330.18 ms. Allocated memory is still 132.1 MB. Free memory was 103.4 MB in the beginning and 88.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3022.55 ms. Allocated memory was 132.1 MB in the beginning and 159.4 MB in the end (delta: 27.3 MB). Free memory was 88.7 MB in the beginning and 129.1 MB in the end (delta: -40.4 MB). Peak memory consumption was 73.7 MB. Max. memory is 16.1 GB. * Witness Printer took 58.49 ms. Allocated memory is still 159.4 MB. Free memory was 129.1 MB in the beginning and 127.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: 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: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((0 <= j + 100 && #NULL <= 0) && 0 <= #NULL) && unknown-#memory_int-unknown["0"]["0"] == 48) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && 9 <= k) && unknown-#length-unknown["assert.h"] == 9) && 2 == unknown-#length-unknown["0"]) && "assert.h" <= 0) && j + 100 <= 0) && "0" <= 0) && 0 <= "0") && i == 0) && k <= 9) && unknown-#StackHeapBarrier-unknown < "0") && \valid["0"] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "assert.h") && 0 <= "assert.h") && 0 <= #NULL) && \valid["assert.h"] == 1) && #NULL <= 0) || ((((((((("assert.h" == 0 && 0 <= "0") && 20 <= j) && #NULL == 0) && 1 <= i) && #NULL == 0) && k == 4) && "0" == 0) && 0 <= "assert.h") && 0 <= unknown-#StackHeapBarrier-unknown) - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((((("assert.h" == 0 && 0 <= "0") && 20 <= j) && #NULL == 0) && 1 <= i) && #NULL == 0) && k == 4) && "0" == 0) && 0 <= "assert.h") && 0 <= unknown-#StackHeapBarrier-unknown - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: ((((((((("assert.h" <= 0 && 0 <= "0") && 0 <= j + 100) && k <= 9) && #NULL == 0) && 1 <= i) && 0 <= "assert.h") && #NULL == 0) && "0" == 0) && 0 <= "assert.h") && 0 <= unknown-#StackHeapBarrier-unknown - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 19 SDtfs, 5 SDslu, 13 SDs, 0 SdLazy, 21 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s 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, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 194 HoareAnnotationTreeSize, 4 FomulaSimplifications, 46 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 91 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 456 SizeOfPredicates, 0 NumberOfNonLiveVariables, 49 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 4/7 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: OVERALL_TIME[ms]: 996, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 11, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 22, TOOLS_POST_TIME[ms]: 339, 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: 18, TOOLS_QUANTIFIERELIM_TIME[ms]: 328, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 236, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 41, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 6, DOMAIN_JOIN_TIME[ms]: 361, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 3, DOMAIN_WIDEN_TIME[ms]: 200, DOMAIN_ISSUBSETEQ_APPLICATIONS: 4, DOMAIN_ISSUBSETEQ_TIME[ms]: 13, DOMAIN_ISBOTTOM_APPLICATIONS: 11, DOMAIN_ISBOTTOM_TIME[ms]: 25, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 599, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 598, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 4, 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]: 3, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 13, DAG_COMPRESSION_PROCESSED_NODES: 65, DAG_COMPRESSION_RETAINED_NODES: 25, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...