./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/id_build.i.p+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a11b54-5db8-4814-be39-a6c47c71dcf1/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a11b54-5db8-4814-be39-a6c47c71dcf1/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a11b54-5db8-4814-be39-a6c47c71dcf1/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a11b54-5db8-4814-be39-a6c47c71dcf1/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build.i.p+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a11b54-5db8-4814-be39-a6c47c71dcf1/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a11b54-5db8-4814-be39-a6c47c71dcf1/bin/uautomizer-hJ6jxDFKc3 --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 5ada574463d887716cd3dcc533441c6f4305e727 ......................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 20:05:44,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 20:05:44,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 20:05:44,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 20:05:44,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 20:05:44,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 20:05:44,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 20:05:44,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 20:05:44,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 20:05:44,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 20:05:44,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 20:05:44,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 20:05:44,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 20:05:44,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 20:05:44,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 20:05:44,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 20:05:44,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 20:05:44,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 20:05:44,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 20:05:44,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 20:05:44,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 20:05:44,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 20:05:44,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 20:05:44,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 20:05:44,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 20:05:44,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 20:05:44,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 20:05:44,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 20:05:44,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 20:05:44,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 20:05:44,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 20:05:44,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 20:05:44,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 20:05:44,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 20:05:44,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 20:05:44,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 20:05:44,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 20:05:44,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 20:05:44,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 20:05:44,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 20:05:44,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 20:05:44,309 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a11b54-5db8-4814-be39-a6c47c71dcf1/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-15 20:05:44,348 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 20:05:44,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 20:05:44,349 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 20:05:44,349 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 20:05:44,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 20:05:44,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 20:05:44,351 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 20:05:44,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 20:05:44,352 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 20:05:44,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 20:05:44,354 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 20:05:44,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 20:05:44,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 20:05:44,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 20:05:44,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 20:05:44,355 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 20:05:44,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 20:05:44,355 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 20:05:44,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 20:05:44,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 20:05:44,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 20:05:44,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 20:05:44,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 20:05:44,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 20:05:44,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 20:05:44,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 20:05:44,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 20:05:44,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 20:05:44,357 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 20:05:44,358 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 20:05:44,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 20:05:44,358 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 20:05:44,358 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_45a11b54-5db8-4814-be39-a6c47c71dcf1/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a11b54-5db8-4814-be39-a6c47c71dcf1/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ada574463d887716cd3dcc533441c6f4305e727 [2021-10-15 20:05:44,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 20:05:44,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 20:05:44,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 20:05:44,685 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 20:05:44,686 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 20:05:44,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a11b54-5db8-4814-be39-a6c47c71dcf1/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/loop-invgen/id_build.i.p+sep-reducer.c [2021-10-15 20:05:44,755 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a11b54-5db8-4814-be39-a6c47c71dcf1/bin/uautomizer-hJ6jxDFKc3/data/b41206458/255d68321cc94632aa96cd3681471fcc/FLAG269d7cac2 [2021-10-15 20:05:45,274 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 20:05:45,274 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a11b54-5db8-4814-be39-a6c47c71dcf1/sv-benchmarks/c/loop-invgen/id_build.i.p+sep-reducer.c [2021-10-15 20:05:45,293 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a11b54-5db8-4814-be39-a6c47c71dcf1/bin/uautomizer-hJ6jxDFKc3/data/b41206458/255d68321cc94632aa96cd3681471fcc/FLAG269d7cac2 [2021-10-15 20:05:45,577 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a11b54-5db8-4814-be39-a6c47c71dcf1/bin/uautomizer-hJ6jxDFKc3/data/b41206458/255d68321cc94632aa96cd3681471fcc [2021-10-15 20:05:45,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 20:05:45,580 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 20:05:45,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 20:05:45,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 20:05:45,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 20:05:45,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:05:45" (1/1) ... [2021-10-15 20:05:45,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43806c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:45, skipping insertion in model container [2021-10-15 20:05:45,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:05:45" (1/1) ... [2021-10-15 20:05:45,608 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 20:05:45,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 20:05:46,173 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a11b54-5db8-4814-be39-a6c47c71dcf1/sv-benchmarks/c/loop-invgen/id_build.i.p+sep-reducer.c[34383,34396] [2021-10-15 20:05:46,215 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a11b54-5db8-4814-be39-a6c47c71dcf1/sv-benchmarks/c/loop-invgen/id_build.i.p+sep-reducer.c[39106,39119] [2021-10-15 20:05:46,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:05:46,254 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 20:05:46,429 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a11b54-5db8-4814-be39-a6c47c71dcf1/sv-benchmarks/c/loop-invgen/id_build.i.p+sep-reducer.c[34383,34396] [2021-10-15 20:05:46,450 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a11b54-5db8-4814-be39-a6c47c71dcf1/sv-benchmarks/c/loop-invgen/id_build.i.p+sep-reducer.c[39106,39119] [2021-10-15 20:05:46,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:05:46,473 INFO L208 MainTranslator]: Completed translation [2021-10-15 20:05:46,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:46 WrapperNode [2021-10-15 20:05:46,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 20:05:46,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 20:05:46,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 20:05:46,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 20:05:46,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:46" (1/1) ... [2021-10-15 20:05:46,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:46" (1/1) ... [2021-10-15 20:05:46,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 20:05:46,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 20:05:46,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 20:05:46,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 20:05:46,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:46" (1/1) ... [2021-10-15 20:05:46,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:46" (1/1) ... [2021-10-15 20:05:46,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:46" (1/1) ... [2021-10-15 20:05:46,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:46" (1/1) ... [2021-10-15 20:05:46,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:46" (1/1) ... [2021-10-15 20:05:46,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:46" (1/1) ... [2021-10-15 20:05:46,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:46" (1/1) ... [2021-10-15 20:05:46,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 20:05:46,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 20:05:46,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 20:05:46,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 20:05:46,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:46" (1/1) ... [2021-10-15 20:05:46,690 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 20:05:46,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a11b54-5db8-4814-be39-a6c47c71dcf1/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:05:46,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a11b54-5db8-4814-be39-a6c47c71dcf1/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 20:05:46,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a11b54-5db8-4814-be39-a6c47c71dcf1/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 20:05:46,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 20:05:46,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 20:05:46,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 20:05:46,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 20:05:48,180 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 20:05:48,180 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-15 20:05:48,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:05:48 BoogieIcfgContainer [2021-10-15 20:05:48,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 20:05:48,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 20:05:48,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 20:05:48,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 20:05:48,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:05:45" (1/3) ... [2021-10-15 20:05:48,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59705990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:05:48, skipping insertion in model container [2021-10-15 20:05:48,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:46" (2/3) ... [2021-10-15 20:05:48,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59705990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:05:48, skipping insertion in model container [2021-10-15 20:05:48,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:05:48" (3/3) ... [2021-10-15 20:05:48,193 INFO L111 eAbstractionObserver]: Analyzing ICFG id_build.i.p+sep-reducer.c [2021-10-15 20:05:48,199 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 20:05:48,200 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-15 20:05:48,264 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 20:05:48,274 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-15 20:05:48,274 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-15 20:05:48,303 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 247 places, 482 transitions, 964 flow [2021-10-15 20:05:48,458 INFO L129 PetriNetUnfolder]: 236/482 cut-off events. [2021-10-15 20:05:48,458 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 20:05:48,460 INFO L84 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 482 events. 236/482 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 461 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 0. Up to 199 conditions per place. [2021-10-15 20:05:48,461 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 482 transitions, 964 flow [2021-10-15 20:05:48,468 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 244 places, 281 transitions, 562 flow [2021-10-15 20:05:48,503 INFO L129 PetriNetUnfolder]: 38/278 cut-off events. [2021-10-15 20:05:48,508 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 20:05:48,508 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 20:05:48,509 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:05:48,509 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 20:05:48,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:05:48,516 INFO L82 PathProgramCache]: Analyzing trace with hash 633200581, now seen corresponding path program 1 times [2021-10-15 20:05:48,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:05:48,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987301099] [2021-10-15 20:05:48,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:05:48,526 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:05:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:05:49,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:05:49,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:05:49,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987301099] [2021-10-15 20:05:49,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987301099] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:05:49,106 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:05:49,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-15 20:05:49,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662660512] [2021-10-15 20:05:49,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-15 20:05:49,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:05:49,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 20:05:49,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 20:05:49,140 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 482 [2021-10-15 20:05:49,148 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 281 transitions, 562 flow. Second operand has 5 states, 5 states have (on average 291.4) internal successors, (1457), 5 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:05:49,148 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 20:05:49,148 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 482 [2021-10-15 20:05:49,149 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 20:05:49,816 INFO L129 PetriNetUnfolder]: 39/287 cut-off events. [2021-10-15 20:05:49,817 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 20:05:49,820 INFO L84 FinitePrefix]: Finished finitePrefix Result has 492 conditions, 287 events. 39/287 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 263 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 3. Up to 135 conditions per place. [2021-10-15 20:05:49,827 INFO L132 encePairwiseOnDemand]: 478/482 looper letters, 200 selfloop transitions, 3 changer transitions 0/283 dead transitions. [2021-10-15 20:05:49,828 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 283 transitions, 972 flow [2021-10-15 20:05:49,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-15 20:05:49,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-15 20:05:49,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1569 transitions. [2021-10-15 20:05:49,855 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6510373443983403 [2021-10-15 20:05:49,856 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1569 transitions. [2021-10-15 20:05:49,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1569 transitions. [2021-10-15 20:05:49,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:05:49,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1569 transitions. [2021-10-15 20:05:49,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 313.8) internal successors, (1569), 5 states have internal predecessors, (1569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:05:49,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 482.0) internal successors, (2892), 6 states have internal predecessors, (2892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:05:49,894 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 482.0) internal successors, (2892), 6 states have internal predecessors, (2892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:05:49,896 INFO L186 Difference]: Start difference. First operand has 244 places, 281 transitions, 562 flow. Second operand 5 states and 1569 transitions. [2021-10-15 20:05:49,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 283 transitions, 972 flow [2021-10-15 20:05:49,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 283 transitions, 972 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 20:05:49,917 INFO L242 Difference]: Finished difference. Result has 247 places, 280 transitions, 570 flow [2021-10-15 20:05:49,920 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=482, PETRI_DIFFERENCE_MINUEND_FLOW=558, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=570, PETRI_PLACES=247, PETRI_TRANSITIONS=280} [2021-10-15 20:05:49,921 INFO L334 CegarLoopForPetriNet]: 244 programPoint places, 3 predicate places. [2021-10-15 20:05:49,921 INFO L470 AbstractCegarLoop]: Abstraction has has 247 places, 280 transitions, 570 flow [2021-10-15 20:05:49,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 291.4) internal successors, (1457), 5 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:05:49,924 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 20:05:49,924 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:05:49,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 20:05:49,925 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 20:05:49,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:05:49,926 INFO L82 PathProgramCache]: Analyzing trace with hash -338276741, now seen corresponding path program 1 times [2021-10-15 20:05:49,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:05:49,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131723576] [2021-10-15 20:05:49,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:05:49,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:05:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:05:50,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:05:50,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:05:50,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131723576] [2021-10-15 20:05:50,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131723576] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:05:50,115 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:05:50,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-15 20:05:50,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465716978] [2021-10-15 20:05:50,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-15 20:05:50,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:05:50,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 20:05:50,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 20:05:50,123 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 482 [2021-10-15 20:05:50,125 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 280 transitions, 570 flow. Second operand has 5 states, 5 states have (on average 292.4) internal successors, (1462), 5 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:05:50,126 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 20:05:50,126 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 482 [2021-10-15 20:05:50,126 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 20:05:50,758 INFO L129 PetriNetUnfolder]: 42/299 cut-off events. [2021-10-15 20:05:50,759 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-15 20:05:50,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 528 conditions, 299 events. 42/299 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 288 event pairs, 0 based on Foata normal form. 0/258 useless extension candidates. Maximal degree in co-relation 323. Up to 143 conditions per place. [2021-10-15 20:05:50,761 INFO L132 encePairwiseOnDemand]: 436/482 looper letters, 0 selfloop transitions, 0 changer transitions 289/289 dead transitions. [2021-10-15 20:05:50,762 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 289 transitions, 1016 flow [2021-10-15 20:05:50,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-15 20:05:50,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-15 20:05:50,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2128 transitions. [2021-10-15 20:05:50,771 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6307053941908713 [2021-10-15 20:05:50,772 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2128 transitions. [2021-10-15 20:05:50,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2128 transitions. [2021-10-15 20:05:50,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:05:50,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2128 transitions. [2021-10-15 20:05:50,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 304.0) internal successors, (2128), 7 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:05:50,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 482.0) internal successors, (3856), 8 states have internal predecessors, (3856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:05:50,797 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 482.0) internal successors, (3856), 8 states have internal predecessors, (3856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:05:50,798 INFO L186 Difference]: Start difference. First operand has 247 places, 280 transitions, 570 flow. Second operand 7 states and 2128 transitions. [2021-10-15 20:05:50,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 289 transitions, 1016 flow [2021-10-15 20:05:50,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 289 transitions, 1013 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-15 20:05:50,813 INFO L242 Difference]: Finished difference. Result has 249 places, 0 transitions, 0 flow [2021-10-15 20:05:50,814 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=482, PETRI_DIFFERENCE_MINUEND_FLOW=563, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=249, PETRI_TRANSITIONS=0} [2021-10-15 20:05:50,814 INFO L334 CegarLoopForPetriNet]: 244 programPoint places, 5 predicate places. [2021-10-15 20:05:50,815 INFO L470 AbstractCegarLoop]: Abstraction has has 249 places, 0 transitions, 0 flow [2021-10-15 20:05:50,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 292.4) internal successors, (1462), 5 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:05:50,819 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 20:05:50,819 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 20:05:50,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-15 20:05:50,824 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 20:05:50,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 08:05:50 BoogieIcfgContainer [2021-10-15 20:05:50,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 20:05:50,834 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 20:05:50,834 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 20:05:50,834 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 20:05:50,835 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:05:48" (3/4) ... [2021-10-15 20:05:50,838 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-15 20:05:50,876 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-15 20:05:50,879 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-15 20:05:50,882 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 20:05:50,884 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 20:05:51,117 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a11b54-5db8-4814-be39-a6c47c71dcf1/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 20:05:51,117 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 20:05:51,119 INFO L168 Benchmark]: Toolchain (without parser) took 5537.47 ms. Allocated memory was 88.1 MB in the beginning and 148.9 MB in the end (delta: 60.8 MB). Free memory was 50.5 MB in the beginning and 57.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 51.9 MB. Max. memory is 16.1 GB. [2021-10-15 20:05:51,119 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory is still 68.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:05:51,120 INFO L168 Benchmark]: CACSL2BoogieTranslator took 877.48 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 50.4 MB in the beginning and 64.8 MB in the end (delta: -14.4 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2021-10-15 20:05:51,121 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.29 ms. Allocated memory is still 111.1 MB. Free memory was 64.8 MB in the beginning and 58.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-15 20:05:51,121 INFO L168 Benchmark]: Boogie Preprocessor took 79.42 ms. Allocated memory is still 111.1 MB. Free memory was 58.5 MB in the beginning and 54.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:05:51,121 INFO L168 Benchmark]: RCFGBuilder took 1520.99 ms. Allocated memory is still 111.1 MB. Free memory was 54.8 MB in the beginning and 52.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. [2021-10-15 20:05:51,122 INFO L168 Benchmark]: TraceAbstraction took 2644.53 ms. Allocated memory was 111.1 MB in the beginning and 148.9 MB in the end (delta: 37.7 MB). Free memory was 51.9 MB in the beginning and 82.0 MB in the end (delta: -30.0 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:05:51,122 INFO L168 Benchmark]: Witness Printer took 283.53 ms. Allocated memory is still 148.9 MB. Free memory was 82.0 MB in the beginning and 57.9 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:05:51,125 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory is still 68.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 877.48 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 50.4 MB in the beginning and 64.8 MB in the end (delta: -14.4 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 107.29 ms. Allocated memory is still 111.1 MB. Free memory was 64.8 MB in the beginning and 58.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 79.42 ms. Allocated memory is still 111.1 MB. Free memory was 58.5 MB in the beginning and 54.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1520.99 ms. Allocated memory is still 111.1 MB. Free memory was 54.8 MB in the beginning and 52.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2644.53 ms. Allocated memory was 111.1 MB in the beginning and 148.9 MB in the end (delta: 37.7 MB). Free memory was 51.9 MB in the beginning and 82.0 MB in the end (delta: -30.0 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. * Witness Printer took 283.53 ms. Allocated memory is still 148.9 MB. Free memory was 82.0 MB in the beginning and 57.9 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 2003]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 2312]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 247 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 39.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2565.0ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1488.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 194.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 9 SDtfs, 349 SDslu, 6 SDs, 0 SdLazy, 1143 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 745.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 118.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=570occurred in iteration=1, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 62.1ms SsaConstructionTime, 222.7ms SatisfiabilityAnalysisTime, 395.8ms InterpolantComputationTime, 269 NumberOfCodeBlocks, 269 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 267 ConstructedInterpolants, 0 QuantifiedInterpolants, 597 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-15 20:05:51,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a11b54-5db8-4814-be39-a6c47c71dcf1/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...