./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.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_a9370087-1155-4cba-b150-aac392aff520/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9370087-1155-4cba-b150-aac392aff520/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_a9370087-1155-4cba-b150-aac392aff520/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9370087-1155-4cba-b150-aac392aff520/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9370087-1155-4cba-b150-aac392aff520/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_a9370087-1155-4cba-b150-aac392aff520/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 dc63a805379d435830d30b53773a27b22aa93e78 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:23:42,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:23:42,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:23:42,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:23:42,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:23:42,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:23:42,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:23:42,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:23:42,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:23:42,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:23:42,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:23:42,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:23:42,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:23:42,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:23:42,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:23:42,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:23:42,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:23:42,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:23:42,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:23:42,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:23:42,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:23:42,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:23:42,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:23:42,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:23:42,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:23:42,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:23:42,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:23:42,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:23:42,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:23:42,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:23:42,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:23:42,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:23:42,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:23:42,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:23:42,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:23:42,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:23:42,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:23:42,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:23:42,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:23:42,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:23:42,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:23:42,600 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9370087-1155-4cba-b150-aac392aff520/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:23:42,643 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:23:42,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:23:42,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:23:42,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:23:42,646 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:23:42,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:23:42,646 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:23:42,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:23:42,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:23:42,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:23:42,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:23:42,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:23:42,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:23:42,649 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:23:42,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:23:42,649 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:23:42,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:23:42,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:23:42,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:23:42,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:23:42,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:23:42,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:23:42,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:23:42,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:23:42,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:23:42,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:23:42,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:23:42,651 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:23:42,652 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_a9370087-1155-4cba-b150-aac392aff520/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9370087-1155-4cba-b150-aac392aff520/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc63a805379d435830d30b53773a27b22aa93e78 [2021-10-11 00:23:42,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:23:42,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:23:42,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:23:42,937 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:23:42,938 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:23:42,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9370087-1155-4cba-b150-aac392aff520/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i [2021-10-11 00:23:43,024 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9370087-1155-4cba-b150-aac392aff520/bin/uautomizer-Z5i5R5N3CC/data/cf3adcdd1/8b94086e7de442c7be5a53f73191fcc8/FLAGaf96bc155 [2021-10-11 00:23:43,568 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:23:43,572 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9370087-1155-4cba-b150-aac392aff520/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i [2021-10-11 00:23:43,585 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9370087-1155-4cba-b150-aac392aff520/bin/uautomizer-Z5i5R5N3CC/data/cf3adcdd1/8b94086e7de442c7be5a53f73191fcc8/FLAGaf96bc155 [2021-10-11 00:23:43,905 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9370087-1155-4cba-b150-aac392aff520/bin/uautomizer-Z5i5R5N3CC/data/cf3adcdd1/8b94086e7de442c7be5a53f73191fcc8 [2021-10-11 00:23:43,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:23:43,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:23:43,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:23:43,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:23:43,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:23:43,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:43" (1/1) ... [2021-10-11 00:23:43,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68498f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:43, skipping insertion in model container [2021-10-11 00:23:43,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:43" (1/1) ... [2021-10-11 00:23:43,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:23:43,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:23:44,124 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_a9370087-1155-4cba-b150-aac392aff520/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i[838,851] [2021-10-11 00:23:44,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:23:44,169 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:23:44,182 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_a9370087-1155-4cba-b150-aac392aff520/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i[838,851] [2021-10-11 00:23:44,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:23:44,211 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:23:44,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44 WrapperNode [2021-10-11 00:23:44,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:23:44,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:23:44,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:23:44,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:23:44,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ... [2021-10-11 00:23:44,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ... [2021-10-11 00:23:44,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:23:44,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:23:44,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:23:44,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:23:44,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ... [2021-10-11 00:23:44,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ... [2021-10-11 00:23:44,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ... [2021-10-11 00:23:44,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ... [2021-10-11 00:23:44,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ... [2021-10-11 00:23:44,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ... [2021-10-11 00:23:44,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ... [2021-10-11 00:23:44,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:23:44,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:23:44,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:23:44,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:23:44,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9370087-1155-4cba-b150-aac392aff520/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 00:23:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:23:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:23:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:23:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:23:44,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:23:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 00:23:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:23:44,773 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:23:44,774 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-10-11 00:23:44,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:44 BoogieIcfgContainer [2021-10-11 00:23:44,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:23:44,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:23:44,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:23:44,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:23:44,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:23:43" (1/3) ... [2021-10-11 00:23:44,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e8ac44d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:23:44, skipping insertion in model container [2021-10-11 00:23:44,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (2/3) ... [2021-10-11 00:23:44,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e8ac44d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:23:44, skipping insertion in model container [2021-10-11 00:23:44,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:44" (3/3) ... [2021-10-11 00:23:44,801 INFO L111 eAbstractionObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_ground.i [2021-10-11 00:23:44,817 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:23:44,822 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 00:23:44,834 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:23:44,879 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:23:44,881 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:23:44,882 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:23:44,882 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:23:44,882 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:23:44,882 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:23:44,883 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:23:44,883 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:23:44,902 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2021-10-11 00:23:44,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 00:23:44,910 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:44,911 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:44,912 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:44,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:44,918 INFO L82 PathProgramCache]: Analyzing trace with hash 212109301, now seen corresponding path program 1 times [2021-10-11 00:23:44,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:44,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363213041] [2021-10-11 00:23:44,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:45,159 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 00:23:45,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363213041] [2021-10-11 00:23:45,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:45,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:23:45,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810546944] [2021-10-11 00:23:45,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:23:45,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:45,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:23:45,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:23:45,187 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 3 states. [2021-10-11 00:23:45,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:45,344 INFO L93 Difference]: Finished difference Result 137 states and 207 transitions. [2021-10-11 00:23:45,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:23:45,346 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2021-10-11 00:23:45,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:45,371 INFO L225 Difference]: With dead ends: 137 [2021-10-11 00:23:45,372 INFO L226 Difference]: Without dead ends: 85 [2021-10-11 00:23:45,375 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:23:45,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-10-11 00:23:45,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 45. [2021-10-11 00:23:45,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-10-11 00:23:45,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2021-10-11 00:23:45,432 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 8 [2021-10-11 00:23:45,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:45,433 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2021-10-11 00:23:45,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:23:45,433 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2021-10-11 00:23:45,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 00:23:45,434 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:45,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:45,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:23:45,435 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:45,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:45,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1436007159, now seen corresponding path program 1 times [2021-10-11 00:23:45,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:45,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853965902] [2021-10-11 00:23:45,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:45,494 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 00:23:45,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853965902] [2021-10-11 00:23:45,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973866777] [2021-10-11 00:23:45,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9370087-1155-4cba-b150-aac392aff520/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 00:23:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:45,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 00:23:45,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:45,653 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 00:23:45,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:23:45,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-11 00:23:45,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121921445] [2021-10-11 00:23:45,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:23:45,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:45,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:23:45,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:23:45,671 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand 5 states. [2021-10-11 00:23:45,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:45,825 INFO L93 Difference]: Finished difference Result 166 states and 208 transitions. [2021-10-11 00:23:45,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:23:45,827 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2021-10-11 00:23:45,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:45,832 INFO L225 Difference]: With dead ends: 166 [2021-10-11 00:23:45,832 INFO L226 Difference]: Without dead ends: 126 [2021-10-11 00:23:45,834 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:23:45,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-10-11 00:23:45,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 47. [2021-10-11 00:23:45,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-10-11 00:23:45,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 58 transitions. [2021-10-11 00:23:45,855 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 58 transitions. Word has length 10 [2021-10-11 00:23:45,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:45,855 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 58 transitions. [2021-10-11 00:23:45,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:23:45,855 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 58 transitions. [2021-10-11 00:23:45,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 00:23:45,856 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:45,857 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:46,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 00:23:46,066 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:46,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:46,067 INFO L82 PathProgramCache]: Analyzing trace with hash 780809593, now seen corresponding path program 2 times [2021-10-11 00:23:46,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:46,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341080266] [2021-10-11 00:23:46,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:46,131 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-11 00:23:46,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341080266] [2021-10-11 00:23:46,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:46,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:23:46,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588031926] [2021-10-11 00:23:46,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:23:46,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:46,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:23:46,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:23:46,134 INFO L87 Difference]: Start difference. First operand 47 states and 58 transitions. Second operand 4 states. [2021-10-11 00:23:46,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:46,184 INFO L93 Difference]: Finished difference Result 92 states and 117 transitions. [2021-10-11 00:23:46,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:23:46,186 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2021-10-11 00:23:46,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:46,187 INFO L225 Difference]: With dead ends: 92 [2021-10-11 00:23:46,187 INFO L226 Difference]: Without dead ends: 51 [2021-10-11 00:23:46,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:23:46,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-11 00:23:46,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2021-10-11 00:23:46,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2021-10-11 00:23:46,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 62 transitions. [2021-10-11 00:23:46,194 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 62 transitions. Word has length 12 [2021-10-11 00:23:46,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:46,194 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 62 transitions. [2021-10-11 00:23:46,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:23:46,194 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2021-10-11 00:23:46,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-11 00:23:46,195 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:46,195 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:46,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:23:46,196 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:46,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:46,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1692621165, now seen corresponding path program 1 times [2021-10-11 00:23:46,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:46,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028010876] [2021-10-11 00:23:46,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:46,241 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-11 00:23:46,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028010876] [2021-10-11 00:23:46,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:46,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:23:46,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815930] [2021-10-11 00:23:46,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:23:46,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:46,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:23:46,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:23:46,244 INFO L87 Difference]: Start difference. First operand 50 states and 62 transitions. Second operand 3 states. [2021-10-11 00:23:46,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:46,270 INFO L93 Difference]: Finished difference Result 111 states and 139 transitions. [2021-10-11 00:23:46,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:23:46,271 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2021-10-11 00:23:46,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:46,272 INFO L225 Difference]: With dead ends: 111 [2021-10-11 00:23:46,272 INFO L226 Difference]: Without dead ends: 73 [2021-10-11 00:23:46,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:23:46,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-11 00:23:46,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 51. [2021-10-11 00:23:46,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2021-10-11 00:23:46,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 63 transitions. [2021-10-11 00:23:46,280 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 63 transitions. Word has length 23 [2021-10-11 00:23:46,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:46,280 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 63 transitions. [2021-10-11 00:23:46,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:23:46,280 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2021-10-11 00:23:46,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 00:23:46,281 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:46,282 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:46,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:23:46,282 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:46,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:46,283 INFO L82 PathProgramCache]: Analyzing trace with hash -2112056943, now seen corresponding path program 1 times [2021-10-11 00:23:46,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:46,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92840699] [2021-10-11 00:23:46,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:46,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:46,336 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-11 00:23:46,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92840699] [2021-10-11 00:23:46,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151968115] [2021-10-11 00:23:46,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9370087-1155-4cba-b150-aac392aff520/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 00:23:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:46,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:23:46,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:46,476 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 00:23:46,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:23:46,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 7 [2021-10-11 00:23:46,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917164931] [2021-10-11 00:23:46,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 00:23:46,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:46,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 00:23:46,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:23:46,480 INFO L87 Difference]: Start difference. First operand 51 states and 63 transitions. Second operand 7 states. [2021-10-11 00:23:46,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:46,739 INFO L93 Difference]: Finished difference Result 312 states and 396 transitions. [2021-10-11 00:23:46,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-11 00:23:46,740 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2021-10-11 00:23:46,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:46,746 INFO L225 Difference]: With dead ends: 312 [2021-10-11 00:23:46,746 INFO L226 Difference]: Without dead ends: 268 [2021-10-11 00:23:46,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2021-10-11 00:23:46,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2021-10-11 00:23:46,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 72. [2021-10-11 00:23:46,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2021-10-11 00:23:46,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 90 transitions. [2021-10-11 00:23:46,778 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 90 transitions. Word has length 25 [2021-10-11 00:23:46,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:46,778 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 90 transitions. [2021-10-11 00:23:46,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 00:23:46,778 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 90 transitions. [2021-10-11 00:23:46,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-11 00:23:46,780 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:46,780 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:46,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:23:46,982 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:46,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:46,983 INFO L82 PathProgramCache]: Analyzing trace with hash -369930547, now seen corresponding path program 2 times [2021-10-11 00:23:46,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:46,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077219449] [2021-10-11 00:23:46,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:47,068 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-11 00:23:47,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077219449] [2021-10-11 00:23:47,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:47,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:23:47,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108019997] [2021-10-11 00:23:47,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:23:47,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:47,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:23:47,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:23:47,077 INFO L87 Difference]: Start difference. First operand 72 states and 90 transitions. Second operand 4 states. [2021-10-11 00:23:47,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:47,103 INFO L93 Difference]: Finished difference Result 139 states and 174 transitions. [2021-10-11 00:23:47,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:23:47,104 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2021-10-11 00:23:47,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:47,105 INFO L225 Difference]: With dead ends: 139 [2021-10-11 00:23:47,105 INFO L226 Difference]: Without dead ends: 102 [2021-10-11 00:23:47,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:23:47,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-10-11 00:23:47,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 75. [2021-10-11 00:23:47,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2021-10-11 00:23:47,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 93 transitions. [2021-10-11 00:23:47,121 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 93 transitions. Word has length 29 [2021-10-11 00:23:47,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:47,121 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 93 transitions. [2021-10-11 00:23:47,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:23:47,121 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 93 transitions. [2021-10-11 00:23:47,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-11 00:23:47,123 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:47,123 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:47,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:23:47,124 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:47,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:47,125 INFO L82 PathProgramCache]: Analyzing trace with hash 811776259, now seen corresponding path program 1 times [2021-10-11 00:23:47,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:47,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915268808] [2021-10-11 00:23:47,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:47,227 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-11 00:23:47,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915268808] [2021-10-11 00:23:47,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:47,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:23:47,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553935909] [2021-10-11 00:23:47,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:23:47,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:47,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:23:47,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:23:47,230 INFO L87 Difference]: Start difference. First operand 75 states and 93 transitions. Second operand 4 states. [2021-10-11 00:23:47,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:47,246 INFO L93 Difference]: Finished difference Result 84 states and 104 transitions. [2021-10-11 00:23:47,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:23:47,246 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2021-10-11 00:23:47,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:47,247 INFO L225 Difference]: With dead ends: 84 [2021-10-11 00:23:47,247 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:23:47,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:23:47,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:23:47,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:23:47,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:23:47,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:23:47,249 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2021-10-11 00:23:47,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:47,249 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:23:47,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:23:47,249 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:23:47,250 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:23:47,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:23:47,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:23:47,420 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-10-11 00:23:47,420 INFO L262 CegarLoopResult]: For program point L52(lines 52 54) no Hoare annotation was computed. [2021-10-11 00:23:47,420 INFO L262 CegarLoopResult]: For program point L52-2(lines 52 54) no Hoare annotation was computed. [2021-10-11 00:23:47,421 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:23:47,421 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:23:47,421 INFO L262 CegarLoopResult]: For program point L61-2(lines 61 65) no Hoare annotation was computed. [2021-10-11 00:23:47,422 INFO L258 CegarLoopResult]: At program point L61-3(lines 61 65) the Hoare annotation is: (and (= ULTIMATE.start_main_~n~0 0) (= ULTIMATE.start_main_~x~0 0)) [2021-10-11 00:23:47,422 INFO L262 CegarLoopResult]: For program point L61-4(lines 61 65) no Hoare annotation was computed. [2021-10-11 00:23:47,422 INFO L262 CegarLoopResult]: For program point L62-2(lines 62 64) no Hoare annotation was computed. [2021-10-11 00:23:47,422 INFO L258 CegarLoopResult]: At program point L62-3(lines 62 64) the Hoare annotation is: false [2021-10-11 00:23:47,422 INFO L262 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2021-10-11 00:23:47,422 INFO L262 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2021-10-11 00:23:47,423 INFO L262 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed. [2021-10-11 00:23:47,423 INFO L262 CegarLoopResult]: For program point L13-4(line 13) no Hoare annotation was computed. [2021-10-11 00:23:47,423 INFO L262 CegarLoopResult]: For program point L13-5(line 13) no Hoare annotation was computed. [2021-10-11 00:23:47,423 INFO L262 CegarLoopResult]: For program point L13-7(line 13) no Hoare annotation was computed. [2021-10-11 00:23:47,425 INFO L262 CegarLoopResult]: For program point L13-8(line 13) no Hoare annotation was computed. [2021-10-11 00:23:47,425 INFO L262 CegarLoopResult]: For program point L13-9(line 13) no Hoare annotation was computed. [2021-10-11 00:23:47,426 INFO L262 CegarLoopResult]: For program point L13-11(line 13) no Hoare annotation was computed. [2021-10-11 00:23:47,426 INFO L262 CegarLoopResult]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2021-10-11 00:23:47,426 INFO L262 CegarLoopResult]: For program point L22-2(lines 22 24) no Hoare annotation was computed. [2021-10-11 00:23:47,426 INFO L258 CegarLoopResult]: At program point L55-3(lines 55 59) the Hoare annotation is: (and (= ULTIMATE.start_main_~n~0 0) (= ULTIMATE.start_main_~x~0 0) (= ULTIMATE.start_elem_exists_~i~0 0) (= ULTIMATE.start_elem_exists_~size 0)) [2021-10-11 00:23:47,427 INFO L258 CegarLoopResult]: At program point L22-3(lines 22 24) the Hoare annotation is: (and (= ULTIMATE.start_main_~n~0 0) (= ULTIMATE.start_main_~x~0 0) (= ULTIMATE.start_elem_exists_~i~0 0) (= ULTIMATE.start_elem_exists_~size 0)) [2021-10-11 00:23:47,427 INFO L262 CegarLoopResult]: For program point L22-4(lines 22 24) no Hoare annotation was computed. [2021-10-11 00:23:47,427 INFO L262 CegarLoopResult]: For program point L47-2(lines 47 50) no Hoare annotation was computed. [2021-10-11 00:23:47,427 INFO L258 CegarLoopResult]: At program point L47-3(lines 47 50) the Hoare annotation is: (and (= ULTIMATE.start_main_~n~0 0) (= ULTIMATE.start_main_~x~0 0)) [2021-10-11 00:23:47,427 INFO L262 CegarLoopResult]: For program point L47-4(lines 47 50) no Hoare annotation was computed. [2021-10-11 00:23:47,427 INFO L262 CegarLoopResult]: For program point L39-2(lines 39 43) no Hoare annotation was computed. [2021-10-11 00:23:47,427 INFO L258 CegarLoopResult]: At program point L39-3(lines 39 43) the Hoare annotation is: (and (= ULTIMATE.start_main_~n~0 0) (= ULTIMATE.start_main_~x~0 0)) [2021-10-11 00:23:47,428 INFO L262 CegarLoopResult]: For program point L39-4(lines 39 43) no Hoare annotation was computed. [2021-10-11 00:23:47,428 INFO L262 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2021-10-11 00:23:47,428 INFO L262 CegarLoopResult]: For program point L56-2(lines 56 58) no Hoare annotation was computed. [2021-10-11 00:23:47,428 INFO L258 CegarLoopResult]: At program point L56-3(lines 56 58) the Hoare annotation is: false [2021-10-11 00:23:47,428 INFO L262 CegarLoopResult]: For program point L40-2(lines 40 42) no Hoare annotation was computed. [2021-10-11 00:23:47,428 INFO L258 CegarLoopResult]: At program point L40-3(lines 40 42) the Hoare annotation is: false [2021-10-11 00:23:47,428 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:23:47,429 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-10-11 00:23:47,429 INFO L265 CegarLoopResult]: At program point L66(lines 27 67) the Hoare annotation is: true [2021-10-11 00:23:47,429 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:23:47,429 INFO L262 CegarLoopResult]: For program point L33-2(lines 33 36) no Hoare annotation was computed. [2021-10-11 00:23:47,429 INFO L258 CegarLoopResult]: At program point L33-3(lines 33 36) the Hoare annotation is: (= ULTIMATE.start_main_~n~0 0) [2021-10-11 00:23:47,429 INFO L262 CegarLoopResult]: For program point L33-4(lines 33 36) no Hoare annotation was computed. [2021-10-11 00:23:47,430 INFO L258 CegarLoopResult]: At program point L25(lines 20 26) the Hoare annotation is: (and (= ULTIMATE.start_main_~n~0 0) (= ULTIMATE.start_main_~x~0 0) (= ULTIMATE.start_elem_exists_~i~0 0) (= |ULTIMATE.start_elem_exists_#res| 0) (= ULTIMATE.start_elem_exists_~size 0)) [2021-10-11 00:23:47,430 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-10-11 00:23:47,430 INFO L258 CegarLoopResult]: At program point L18(lines 16 19) the Hoare annotation is: false [2021-10-11 00:23:47,430 INFO L262 CegarLoopResult]: For program point L51-2(lines 51 60) no Hoare annotation was computed. [2021-10-11 00:23:47,431 INFO L258 CegarLoopResult]: At program point L51-3(lines 51 60) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~n~0 0)) (.cse1 (= ULTIMATE.start_main_~x~0 0))) (or (and .cse0 .cse1 (= ULTIMATE.start_elem_exists_~i~0 0) (= ULTIMATE.start_elem_exists_~size 0)) (and .cse0 .cse1 (= ULTIMATE.start_main_~v~0 0)))) [2021-10-11 00:23:47,431 INFO L262 CegarLoopResult]: For program point L51-4(lines 51 60) no Hoare annotation was computed. [2021-10-11 00:23:47,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:23:47 BoogieIcfgContainer [2021-10-11 00:23:47,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:23:47,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:23:47,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:23:47,455 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:23:47,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:44" (3/4) ... [2021-10-11 00:23:47,459 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:23:47,476 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-10-11 00:23:47,476 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-11 00:23:47,477 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:23:47,477 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:23:47,507 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((n == 0 && x == 0) && i == 0) && \result == 0) && size == 0 [2021-10-11 00:23:47,546 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9370087-1155-4cba-b150-aac392aff520/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:23:47,546 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:23:47,548 INFO L168 Benchmark]: Toolchain (without parser) took 3637.37 ms. Allocated memory was 130.0 MB in the beginning and 163.6 MB in the end (delta: 33.6 MB). Free memory was 95.4 MB in the beginning and 67.7 MB in the end (delta: 27.7 MB). Peak memory consumption was 60.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:47,548 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 75.5 MB. Free memory was 33.1 MB in the beginning and 33.0 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:47,549 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.07 ms. Allocated memory is still 130.0 MB. Free memory was 95.2 MB in the beginning and 103.1 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:47,549 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.93 ms. Allocated memory is still 130.0 MB. Free memory was 103.1 MB in the beginning and 101.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:47,550 INFO L168 Benchmark]: Boogie Preprocessor took 33.83 ms. Allocated memory is still 130.0 MB. Free memory was 101.7 MB in the beginning and 100.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:47,550 INFO L168 Benchmark]: RCFGBuilder took 484.22 ms. Allocated memory is still 130.0 MB. Free memory was 100.2 MB in the beginning and 77.9 MB in the end (delta: 22.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:47,551 INFO L168 Benchmark]: TraceAbstraction took 2661.12 ms. Allocated memory was 130.0 MB in the beginning and 163.6 MB in the end (delta: 33.6 MB). Free memory was 77.2 MB in the beginning and 70.9 MB in the end (delta: 6.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:47,551 INFO L168 Benchmark]: Witness Printer took 91.24 ms. Allocated memory is still 163.6 MB. Free memory was 70.9 MB in the beginning and 67.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:47,554 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 75.5 MB. Free memory was 33.1 MB in the beginning and 33.0 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 301.07 ms. Allocated memory is still 130.0 MB. Free memory was 95.2 MB in the beginning and 103.1 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.93 ms. Allocated memory is still 130.0 MB. Free memory was 103.1 MB in the beginning and 101.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.83 ms. Allocated memory is still 130.0 MB. Free memory was 101.7 MB in the beginning and 100.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 484.22 ms. Allocated memory is still 130.0 MB. Free memory was 100.2 MB in the beginning and 77.9 MB in the end (delta: 22.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2661.12 ms. Allocated memory was 130.0 MB in the beginning and 163.6 MB in the end (delta: 33.6 MB). Free memory was 77.2 MB in the beginning and 70.9 MB in the end (delta: 6.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 16.1 GB. * Witness Printer took 91.24 ms. Allocated memory is still 163.6 MB. Free memory was 70.9 MB in the beginning and 67.7 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: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: 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 3 specifications checked. All of them hold - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: n == 0 && x == 0 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: (((n == 0 && x == 0) && i == 0) && size == 0) || ((n == 0 && x == 0) && v == 0) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((n == 0 && x == 0) && i == 0) && size == 0 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: n == 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: ((n == 0 && x == 0) && i == 0) && size == 0 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: n == 0 && x == 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (((n == 0 && x == 0) && i == 0) && \result == 0) && size == 0 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: n == 0 && x == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 48 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 280 SDtfs, 715 SDslu, 447 SDs, 0 SdLazy, 219 SolverSat, 95 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 365 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 13 PreInvPairs, 29 NumberOfFragments, 95 HoareAnnotationTreeSize, 13 FomulaSimplifications, 454 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 21 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 5516 SizeOfPredicates, 0 NumberOfNonLiveVariables, 204 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 39/46 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...