./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/jm2006_variant.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_730ab157-f2b4-44dc-9c42-07b03fc798c3/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730ab157-f2b4-44dc-9c42-07b03fc798c3/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730ab157-f2b4-44dc-9c42-07b03fc798c3/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730ab157-f2b4-44dc-9c42-07b03fc798c3/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/jm2006_variant.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730ab157-f2b4-44dc-9c42-07b03fc798c3/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730ab157-f2b4-44dc-9c42-07b03fc798c3/bin/uautomizer-Z5i5R5N3CC --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 d9ecf0997a3226968b15d351ec48dae1cc4b70e9 ............................................................................................................................................................................................................................................................................................................................................................................... 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 00:21:04,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:21:04,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:21:04,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:21:04,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:21:04,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:21:04,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:21:04,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:21:04,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:21:04,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:21:04,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:21:04,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:21:04,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:21:04,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:21:04,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:21:04,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:21:04,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:21:04,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:21:04,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:21:04,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:21:04,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:21:04,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:21:04,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:21:04,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:21:04,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:21:04,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:21:04,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:21:04,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:21:04,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:21:04,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:21:04,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:21:04,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:21:04,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:21:04,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:21:04,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:21:04,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:21:04,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:21:04,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:21:04,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:21:04,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:21:04,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:21:04,207 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730ab157-f2b4-44dc-9c42-07b03fc798c3/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:21:04,246 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:21:04,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:21:04,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:21:04,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:21:04,249 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:21:04,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:21:04,250 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:21:04,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:21:04,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:21:04,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:21:04,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:21:04,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:21:04,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:21:04,253 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:21:04,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:21:04,253 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:21:04,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:21:04,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:21:04,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:21:04,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:21:04,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:21:04,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:21:04,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:21:04,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:21:04,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:21:04,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:21:04,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:21:04,257 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:21:04,257 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_730ab157-f2b4-44dc-9c42-07b03fc798c3/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730ab157-f2b4-44dc-9c42-07b03fc798c3/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9ecf0997a3226968b15d351ec48dae1cc4b70e9 [2021-10-11 00:21:04,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:21:04,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:21:04,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:21:04,541 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:21:04,542 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:21:04,543 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730ab157-f2b4-44dc-9c42-07b03fc798c3/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/loop-lit/jm2006_variant.i [2021-10-11 00:21:04,618 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730ab157-f2b4-44dc-9c42-07b03fc798c3/bin/uautomizer-Z5i5R5N3CC/data/e6ef1a569/b6aa7cac483243bdb4cd5f67823e2306/FLAGe71ddf04f [2021-10-11 00:21:05,063 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:21:05,064 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730ab157-f2b4-44dc-9c42-07b03fc798c3/sv-benchmarks/c/loop-lit/jm2006_variant.i [2021-10-11 00:21:05,070 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730ab157-f2b4-44dc-9c42-07b03fc798c3/bin/uautomizer-Z5i5R5N3CC/data/e6ef1a569/b6aa7cac483243bdb4cd5f67823e2306/FLAGe71ddf04f [2021-10-11 00:21:05,462 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730ab157-f2b4-44dc-9c42-07b03fc798c3/bin/uautomizer-Z5i5R5N3CC/data/e6ef1a569/b6aa7cac483243bdb4cd5f67823e2306 [2021-10-11 00:21:05,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:21:05,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:21:05,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:05,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:21:05,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:21:05,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:05" (1/1) ... [2021-10-11 00:21:05,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6038f15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:05, skipping insertion in model container [2021-10-11 00:21:05,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:05" (1/1) ... [2021-10-11 00:21:05,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:21:05,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:21:05,665 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_730ab157-f2b4-44dc-9c42-07b03fc798c3/sv-benchmarks/c/loop-lit/jm2006_variant.i[895,908] [2021-10-11 00:21:05,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:05,687 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:21:05,699 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_730ab157-f2b4-44dc-9c42-07b03fc798c3/sv-benchmarks/c/loop-lit/jm2006_variant.i[895,908] [2021-10-11 00:21:05,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:05,717 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:21:05,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:05 WrapperNode [2021-10-11 00:21:05,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:05,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:05,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:21:05,720 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:21:05,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:05" (1/1) ... [2021-10-11 00:21:05,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:05" (1/1) ... [2021-10-11 00:21:05,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:05,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:21:05,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:21:05,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:21:05,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:05" (1/1) ... [2021-10-11 00:21:05,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:05" (1/1) ... [2021-10-11 00:21:05,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:05" (1/1) ... [2021-10-11 00:21:05,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:05" (1/1) ... [2021-10-11 00:21:05,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:05" (1/1) ... [2021-10-11 00:21:05,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:05" (1/1) ... [2021-10-11 00:21:05,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:05" (1/1) ... [2021-10-11 00:21:05,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:21:05,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:21:05,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:21:05,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:21:05,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:05" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730ab157-f2b4-44dc-9c42-07b03fc798c3/bin/uautomizer-Z5i5R5N3CC/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 00:21:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:21:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:21:05,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:21:05,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:21:06,171 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:21:06,172 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 00:21:06,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:06 BoogieIcfgContainer [2021-10-11 00:21:06,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:21:06,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:21:06,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:21:06,179 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:21:06,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:21:05" (1/3) ... [2021-10-11 00:21:06,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb13f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:21:06, skipping insertion in model container [2021-10-11 00:21:06,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:05" (2/3) ... [2021-10-11 00:21:06,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb13f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:21:06, skipping insertion in model container [2021-10-11 00:21:06,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:06" (3/3) ... [2021-10-11 00:21:06,182 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2021-10-11 00:21:06,196 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:21:06,199 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:21:06,210 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:21:06,233 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:21:06,233 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:21:06,234 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:21:06,234 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:21:06,234 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:21:06,234 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:21:06,234 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:21:06,235 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:21:06,255 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2021-10-11 00:21:06,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 00:21:06,261 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:06,262 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:06,262 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:06,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:06,268 INFO L82 PathProgramCache]: Analyzing trace with hash 179632146, now seen corresponding path program 1 times [2021-10-11 00:21:06,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:06,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174111847] [2021-10-11 00:21:06,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:06,616 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 00:21:06,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174111847] [2021-10-11 00:21:06,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:06,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:21:06,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139478697] [2021-10-11 00:21:06,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:21:06,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:06,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:21:06,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:21:06,645 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 5 states. [2021-10-11 00:21:06,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:06,924 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2021-10-11 00:21:06,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:21:06,927 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2021-10-11 00:21:06,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:06,935 INFO L225 Difference]: With dead ends: 36 [2021-10-11 00:21:06,935 INFO L226 Difference]: Without dead ends: 10 [2021-10-11 00:21:06,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:21:06,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-11 00:21:06,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-11 00:21:06,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-11 00:21:06,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-11 00:21:06,971 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2021-10-11 00:21:06,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:06,972 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-11 00:21:06,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:21:06,973 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-11 00:21:06,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 00:21:06,973 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:06,974 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:06,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:21:06,974 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:06,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:06,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1275235031, now seen corresponding path program 1 times [2021-10-11 00:21:06,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:06,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80107357] [2021-10-11 00:21:06,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:07,127 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:07,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80107357] [2021-10-11 00:21:07,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547897302] [2021-10-11 00:21:07,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730ab157-f2b4-44dc-9c42-07b03fc798c3/bin/uautomizer-Z5i5R5N3CC/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 00:21:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:07,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-11 00:21:07,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:07,363 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 00:21:07,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:07,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:21:07,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-10-11 00:21:07,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89160258] [2021-10-11 00:21:07,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-10-11 00:21:07,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:07,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-11 00:21:07,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:21:07,395 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 9 states. [2021-10-11 00:21:07,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:07,606 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2021-10-11 00:21:07,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 00:21:07,607 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 9 [2021-10-11 00:21:07,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:07,609 INFO L225 Difference]: With dead ends: 18 [2021-10-11 00:21:07,609 INFO L226 Difference]: Without dead ends: 12 [2021-10-11 00:21:07,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-11 00:21:07,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-10-11 00:21:07,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-11 00:21:07,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-11 00:21:07,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-10-11 00:21:07,619 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2021-10-11 00:21:07,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:07,619 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-10-11 00:21:07,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-10-11 00:21:07,620 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-10-11 00:21:07,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 00:21:07,620 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:07,621 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:07,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 00:21:07,849 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:07,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:07,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1486571063, now seen corresponding path program 2 times [2021-10-11 00:21:07,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:07,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253617153] [2021-10-11 00:21:07,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:08,016 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 00:21:08,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253617153] [2021-10-11 00:21:08,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401877062] [2021-10-11 00:21:08,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730ab157-f2b4-44dc-9c42-07b03fc798c3/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:21:08,079 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-11 00:21:08,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-11 00:21:08,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-11 00:21:08,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:08,223 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 00:21:08,242 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:08,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:21:08,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2021-10-11 00:21:08,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903684511] [2021-10-11 00:21:08,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-10-11 00:21:08,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:08,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-11 00:21:08,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-11 00:21:08,252 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 12 states. [2021-10-11 00:21:08,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:08,464 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-10-11 00:21:08,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-11 00:21:08,464 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 11 [2021-10-11 00:21:08,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:08,465 INFO L225 Difference]: With dead ends: 15 [2021-10-11 00:21:08,465 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:21:08,467 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-10-11 00:21:08,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:21:08,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:21:08,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:21:08,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:21:08,468 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-10-11 00:21:08,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:08,469 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:21:08,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-10-11 00:21:08,469 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:21:08,470 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:21:08,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:21:08,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:21:08,774 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:21:08,774 INFO L258 CegarLoopResult]: At program point L33-2(lines 33 37) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~j~0)) (.cse0 (+ ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~i~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2021-10-11 00:21:08,775 INFO L262 CegarLoopResult]: For program point L33-3(lines 24 42) no Hoare annotation was computed. [2021-10-11 00:21:08,775 INFO L262 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2021-10-11 00:21:08,775 INFO L262 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2021-10-11 00:21:08,775 INFO L265 CegarLoopResult]: At program point L38(lines 38 40) the Hoare annotation is: true [2021-10-11 00:21:08,775 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:21:08,775 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:21:08,776 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:21:08,776 INFO L262 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2021-10-11 00:21:08,776 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-11 00:21:08,777 INFO L262 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2021-10-11 00:21:08,777 INFO L265 CegarLoopResult]: At program point L41(lines 24 42) the Hoare annotation is: true [2021-10-11 00:21:08,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:21:08 BoogieIcfgContainer [2021-10-11 00:21:08,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:21:08,792 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:21:08,792 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:21:08,793 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:21:08,793 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:06" (3/4) ... [2021-10-11 00:21:08,797 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:21:08,806 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-11 00:21:08,806 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 00:21:08,807 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:21:08,807 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:21:08,846 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730ab157-f2b4-44dc-9c42-07b03fc798c3/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:21:08,846 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:21:08,848 INFO L168 Benchmark]: Toolchain (without parser) took 3382.02 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 75.8 MB in the beginning and 96.3 MB in the end (delta: -20.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:08,849 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 104.9 MB. Free memory is still 59.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:08,850 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.31 ms. Allocated memory is still 104.9 MB. Free memory was 75.8 MB in the beginning and 80.6 MB in the end (delta: -4.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:08,850 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.46 ms. Allocated memory is still 104.9 MB. Free memory was 80.6 MB in the beginning and 79.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:08,851 INFO L168 Benchmark]: Boogie Preprocessor took 21.25 ms. Allocated memory is still 104.9 MB. Free memory was 79.0 MB in the beginning and 78.1 MB in the end (delta: 980.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:08,852 INFO L168 Benchmark]: RCFGBuilder took 402.24 ms. Allocated memory is still 104.9 MB. Free memory was 78.1 MB in the beginning and 66.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:08,853 INFO L168 Benchmark]: TraceAbstraction took 2616.42 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 65.9 MB in the beginning and 99.4 MB in the end (delta: -33.4 MB). Peak memory consumption was 42.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:08,853 INFO L168 Benchmark]: Witness Printer took 54.39 ms. Allocated memory is still 125.8 MB. Free memory was 99.4 MB in the beginning and 96.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:08,857 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 104.9 MB. Free memory is still 59.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 251.31 ms. Allocated memory is still 104.9 MB. Free memory was 75.8 MB in the beginning and 80.6 MB in the end (delta: -4.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.46 ms. Allocated memory is still 104.9 MB. Free memory was 80.6 MB in the beginning and 79.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.25 ms. Allocated memory is still 104.9 MB. Free memory was 79.0 MB in the beginning and 78.1 MB in the end (delta: 980.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 402.24 ms. Allocated memory is still 104.9 MB. Free memory was 78.1 MB in the beginning and 66.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2616.42 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 65.9 MB in the beginning and 99.4 MB in the end (delta: -33.4 MB). Peak memory consumption was 42.6 MB. Max. memory is 16.1 GB. * Witness Printer took 54.39 ms. Allocated memory is still 125.8 MB. Free memory was 99.4 MB in the beginning and 96.3 MB in the end (delta: 3.1 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: 33]: Loop Invariant Derived loop invariant: z + y + i <= x + j && x + j <= z + y + i - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 26 SDtfs, 35 SDslu, 63 SDs, 0 SdLazy, 122 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 3 LocationsWithAnnotation, 3 PreInvPairs, 15 NumberOfFragments, 19 HoareAnnotationTreeSize, 3 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 129 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 3606 SizeOfPredicates, 12 NumberOfNonLiveVariables, 134 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 1/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...