./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/sum03-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/sum03-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 99fb7db18985aa376eea162ee528744f913aa340 ................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-12 23:59:29,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-12 23:59:29,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-12 23:59:29,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-12 23:59:29,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-12 23:59:29,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-12 23:59:29,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-12 23:59:29,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-12 23:59:29,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-12 23:59:29,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-12 23:59:29,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-12 23:59:29,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-12 23:59:29,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-12 23:59:29,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-12 23:59:29,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-12 23:59:29,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-12 23:59:29,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-12 23:59:29,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-12 23:59:29,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-12 23:59:29,263 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-12 23:59:29,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-12 23:59:29,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-12 23:59:29,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-12 23:59:29,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-12 23:59:29,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-12 23:59:29,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-12 23:59:29,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-12 23:59:29,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-12 23:59:29,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-12 23:59:29,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-12 23:59:29,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-12 23:59:29,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-12 23:59:29,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-12 23:59:29,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-12 23:59:29,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-12 23:59:29,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-12 23:59:29,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-12 23:59:29,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-12 23:59:29,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-12 23:59:29,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-12 23:59:29,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-12 23:59:29,292 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-12 23:59:29,343 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-12 23:59:29,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-12 23:59:29,344 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-12 23:59:29,344 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-12 23:59:29,345 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-12 23:59:29,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-12 23:59:29,346 INFO L138 SettingsManager]: * Use SBE=true [2021-10-12 23:59:29,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-12 23:59:29,346 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-12 23:59:29,346 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-12 23:59:29,347 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-12 23:59:29,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-12 23:59:29,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-12 23:59:29,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-12 23:59:29,347 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-12 23:59:29,348 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-12 23:59:29,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-12 23:59:29,348 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-12 23:59:29,348 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-12 23:59:29,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-12 23:59:29,348 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-12 23:59:29,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-12 23:59:29,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-12 23:59:29,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-12 23:59:29,349 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-12 23:59:29,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-12 23:59:29,350 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-12 23:59:29,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-12 23:59:29,350 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-12 23:59:29,350 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-12 23:59:29,351 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99fb7db18985aa376eea162ee528744f913aa340 [2021-10-12 23:59:29,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-12 23:59:29,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-12 23:59:29,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-12 23:59:29,651 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-12 23:59:29,652 INFO L275 PluginConnector]: CDTParser initialized [2021-10-12 23:59:29,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/loops/sum03-2.i [2021-10-12 23:59:29,747 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt/data/6e878396e/8f744c699eb744079977ecdb6d3179d1/FLAG4270c9501 [2021-10-12 23:59:30,227 INFO L306 CDTParser]: Found 1 translation units. [2021-10-12 23:59:30,228 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/sv-benchmarks/c/loops/sum03-2.i [2021-10-12 23:59:30,240 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt/data/6e878396e/8f744c699eb744079977ecdb6d3179d1/FLAG4270c9501 [2021-10-12 23:59:30,594 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt/data/6e878396e/8f744c699eb744079977ecdb6d3179d1 [2021-10-12 23:59:30,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-12 23:59:30,598 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-12 23:59:30,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-12 23:59:30,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-12 23:59:30,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-12 23:59:30,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:59:30" (1/1) ... [2021-10-12 23:59:30,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@745a190a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:30, skipping insertion in model container [2021-10-12 23:59:30,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:59:30" (1/1) ... [2021-10-12 23:59:30,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-12 23:59:30,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-12 23:59:30,828 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/sv-benchmarks/c/loops/sum03-2.i[807,820] [2021-10-12 23:59:30,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-12 23:59:30,852 INFO L203 MainTranslator]: Completed pre-run [2021-10-12 23:59:30,865 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/sv-benchmarks/c/loops/sum03-2.i[807,820] [2021-10-12 23:59:30,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-12 23:59:30,882 INFO L208 MainTranslator]: Completed translation [2021-10-12 23:59:30,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:30 WrapperNode [2021-10-12 23:59:30,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-12 23:59:30,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-12 23:59:30,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-12 23:59:30,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-12 23:59:30,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:30" (1/1) ... [2021-10-12 23:59:30,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:30" (1/1) ... [2021-10-12 23:59:30,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-12 23:59:30,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-12 23:59:30,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-12 23:59:30,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-12 23:59:30,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:30" (1/1) ... [2021-10-12 23:59:30,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:30" (1/1) ... [2021-10-12 23:59:30,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:30" (1/1) ... [2021-10-12 23:59:30,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:30" (1/1) ... [2021-10-12 23:59:30,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:30" (1/1) ... [2021-10-12 23:59:30,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:30" (1/1) ... [2021-10-12 23:59:30,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:30" (1/1) ... [2021-10-12 23:59:30,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-12 23:59:30,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-12 23:59:30,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-12 23:59:30,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-12 23:59:30,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:30" (1/1) ... [2021-10-12 23:59:30,947 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-12 23:59:30,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-12 23:59:30,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-12 23:59:31,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-12 23:59:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-12 23:59:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-12 23:59:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-12 23:59:31,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-12 23:59:31,171 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-12 23:59:31,171 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-12 23:59:31,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:59:31 BoogieIcfgContainer [2021-10-12 23:59:31,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-12 23:59:31,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-12 23:59:31,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-12 23:59:31,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-12 23:59:31,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:59:30" (1/3) ... [2021-10-12 23:59:31,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39feba7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:59:31, skipping insertion in model container [2021-10-12 23:59:31,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:30" (2/3) ... [2021-10-12 23:59:31,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39feba7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:59:31, skipping insertion in model container [2021-10-12 23:59:31,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:59:31" (3/3) ... [2021-10-12 23:59:31,195 INFO L111 eAbstractionObserver]: Analyzing ICFG sum03-2.i [2021-10-12 23:59:31,201 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-12 23:59:31,201 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-12 23:59:31,274 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-12 23:59:31,296 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-12 23:59:31,297 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-12 23:59:31,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-12 23:59:31,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-12 23:59:31,347 INFO L504 BasicCegarLoop]: Found error trace [2021-10-12 23:59:31,347 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-12 23:59:31,348 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-12 23:59:31,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:31,354 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2021-10-12 23:59:31,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:31,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322139068] [2021-10-12 23:59:31,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:31,379 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:31,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-12 23:59:31,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-12 23:59:31,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-12 23:59:31,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322139068] [2021-10-12 23:59:31,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322139068] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-12 23:59:31,689 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-12 23:59:31,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-12 23:59:31,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421662414] [2021-10-12 23:59:31,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-12 23:59:31,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-12 23:59:31,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-12 23:59:31,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-12 23:59:31,714 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-12 23:59:31,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-12 23:59:31,774 INFO L93 Difference]: Finished difference Result 15 states and 23 transitions. [2021-10-12 23:59:31,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-12 23:59:31,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-12 23:59:31,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-12 23:59:31,794 INFO L225 Difference]: With dead ends: 15 [2021-10-12 23:59:31,795 INFO L226 Difference]: Without dead ends: 8 [2021-10-12 23:59:31,800 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.2ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-12 23:59:31,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-10-12 23:59:31,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-10-12 23:59:31,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-12 23:59:31,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-10-12 23:59:31,832 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2021-10-12 23:59:31,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-12 23:59:31,833 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-10-12 23:59:31,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-12 23:59:31,835 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-10-12 23:59:31,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-12 23:59:31,836 INFO L504 BasicCegarLoop]: Found error trace [2021-10-12 23:59:31,836 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-10-12 23:59:31,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-12 23:59:31,837 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-12 23:59:31,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:31,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1810804418, now seen corresponding path program 1 times [2021-10-12 23:59:31,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:31,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587482294] [2021-10-12 23:59:31,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:31,845 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-12 23:59:31,991 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-12 23:59:31,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-12 23:59:31,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587482294] [2021-10-12 23:59:31,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587482294] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-12 23:59:31,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649314897] [2021-10-12 23:59:31,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:31,993 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-12 23:59:31,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-12 23:59:31,995 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-12 23:59:32,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-12 23:59:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-12 23:59:32,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-12 23:59:32,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-12 23:59:32,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-12 23:59:32,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649314897] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-12 23:59:32,296 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-12 23:59:32,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-10-12 23:59:32,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665055772] [2021-10-12 23:59:32,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-12 23:59:32,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-12 23:59:32,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-12 23:59:32,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-12 23:59:32,305 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-12 23:59:32,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-12 23:59:32,363 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2021-10-12 23:59:32,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-12 23:59:32,364 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-12 23:59:32,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-12 23:59:32,365 INFO L225 Difference]: With dead ends: 9 [2021-10-12 23:59:32,366 INFO L226 Difference]: Without dead ends: 0 [2021-10-12 23:59:32,367 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 56.5ms TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-12 23:59:32,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-12 23:59:32,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-12 23:59:32,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-12 23:59:32,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-12 23:59:32,369 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2021-10-12 23:59:32,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-12 23:59:32,369 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-12 23:59:32,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-12 23:59:32,370 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-12 23:59:32,370 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-12 23:59:32,372 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-12 23:59:32,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-12 23:59:32,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-12 23:59:32,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-12 23:59:32,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-12 23:59:32,672 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-12 23:59:32,672 INFO L857 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2021-10-12 23:59:32,672 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-12 23:59:32,673 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-12 23:59:32,673 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-12 23:59:32,673 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2021-10-12 23:59:32,673 INFO L857 garLoopResultBuilder]: For program point L20(lines 20 29) no Hoare annotation was computed. [2021-10-12 23:59:32,673 INFO L857 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2021-10-12 23:59:32,674 INFO L853 garLoopResultBuilder]: At program point L14-2(lines 13 28) the Hoare annotation is: (or (let ((.cse0 (* 2 ULTIMATE.start_main_~x~0))) (and (<= .cse0 ULTIMATE.start_main_~sn~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= ULTIMATE.start_main_~sn~0 .cse0))) (and (= ULTIMATE.start_main_~x~0 0) (= ULTIMATE.start_main_~sn~0 0))) [2021-10-12 23:59:32,679 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-12 23:59:32,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:59:32 BoogieIcfgContainer [2021-10-12 23:59:32,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-12 23:59:32,693 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-12 23:59:32,694 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-12 23:59:32,694 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-12 23:59:32,694 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:59:31" (3/4) ... [2021-10-12 23:59:32,698 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-12 23:59:32,708 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-12 23:59:32,708 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-12 23:59:32,709 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-12 23:59:32,709 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-12 23:59:32,743 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-12 23:59:32,743 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-12 23:59:32,745 INFO L168 Benchmark]: Toolchain (without parser) took 2145.77 ms. Allocated memory was 96.5 MB in the beginning and 136.3 MB in the end (delta: 39.8 MB). Free memory was 62.2 MB in the beginning and 93.3 MB in the end (delta: -31.1 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-10-12 23:59:32,746 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 96.5 MB. Free memory was 66.3 MB in the beginning and 66.2 MB in the end (delta: 28.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-12 23:59:32,746 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.52 ms. Allocated memory is still 96.5 MB. Free memory was 62.0 MB in the beginning and 72.0 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-12 23:59:32,747 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.93 ms. Allocated memory is still 96.5 MB. Free memory was 72.0 MB in the beginning and 70.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-12 23:59:32,747 INFO L168 Benchmark]: Boogie Preprocessor took 20.14 ms. Allocated memory is still 96.5 MB. Free memory was 70.7 MB in the beginning and 69.7 MB in the end (delta: 956.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-12 23:59:32,748 INFO L168 Benchmark]: RCFGBuilder took 235.31 ms. Allocated memory is still 96.5 MB. Free memory was 69.7 MB in the beginning and 61.0 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-12 23:59:32,749 INFO L168 Benchmark]: TraceAbstraction took 1517.72 ms. Allocated memory was 96.5 MB in the beginning and 136.3 MB in the end (delta: 39.8 MB). Free memory was 60.6 MB in the beginning and 96.1 MB in the end (delta: -35.5 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2021-10-12 23:59:32,749 INFO L168 Benchmark]: Witness Printer took 49.81 ms. Allocated memory is still 136.3 MB. Free memory was 95.5 MB in the beginning and 93.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-12 23:59:32,752 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 96.5 MB. Free memory was 66.3 MB in the beginning and 66.2 MB in the end (delta: 28.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 282.52 ms. Allocated memory is still 96.5 MB. Free memory was 62.0 MB in the beginning and 72.0 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.93 ms. Allocated memory is still 96.5 MB. Free memory was 72.0 MB in the beginning and 70.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.14 ms. Allocated memory is still 96.5 MB. Free memory was 70.7 MB in the beginning and 69.7 MB in the end (delta: 956.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 235.31 ms. Allocated memory is still 96.5 MB. Free memory was 69.7 MB in the beginning and 61.0 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1517.72 ms. Allocated memory was 96.5 MB in the beginning and 136.3 MB in the end (delta: 39.8 MB). Free memory was 60.6 MB in the beginning and 96.1 MB in the end (delta: -35.5 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. * Witness Printer took 49.81 ms. Allocated memory is still 136.3 MB. Free memory was 95.5 MB in the beginning and 93.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 15]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1406.6ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 40.9ms, AutomataDifference: 166.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 70.1ms, InitialAbstractionConstructionTime: 9.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 7 SDtfs, 3 SDslu, 11 SDs, 0 SdLazy, 16 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 64.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 70.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 17.6ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 4 NumberOfFragments, 22 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 23.6ms HoareSimplificationTime, 1 FomulaSimplificationsInter, 18 FormulaSimplificationTreeSizeReductionInter, 40.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 27.3ms SsaConstructionTime, 162.4ms SatisfiabilityAnalysisTime, 430.0ms InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 74 SizeOfPredicates, 3 NumberOfNonLiveVariables, 53 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: ((2 * x <= sn && 1 <= cond) && sn <= 2 * x) || (x == 0 && sn == 0) RESULT: Ultimate proved your program to be correct! [2021-10-12 23:59:32,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f643abc-4f25-4f91-beac-21e84ac7c91b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...