./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-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_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/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_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/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_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/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 cbba3ede4e91b7384b0dde986cc9a2a86c4a62c3 ................................................................................................................................................................................................................................................................................................................................................ 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 19:05:42,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:05:42,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:05:42,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:05:42,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:05:42,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:05:42,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:05:42,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:05:42,522 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:05:42,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:05:42,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:05:42,527 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:05:42,527 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:05:42,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:05:42,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:05:42,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:05:42,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:05:42,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:05:42,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:05:42,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:05:42,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:05:42,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:05:42,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:05:42,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:05:42,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:05:42,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:05:42,552 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:05:42,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:05:42,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:05:42,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:05:42,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:05:42,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:05:42,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:05:42,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:05:42,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:05:42,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:05:42,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:05:42,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:05:42,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:05:42,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:05:42,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:05:42,567 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-15 19:05:42,614 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:05:42,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:05:42,615 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:05:42,615 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:05:42,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:05:42,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:05:42,623 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:05:42,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:05:42,624 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:05:42,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:05:42,625 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:05:42,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:05:42,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:05:42,626 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:05:42,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:05:42,626 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:05:42,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:05:42,627 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:05:42,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:05:42,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:05:42,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:05:42,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:05:42,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:05:42,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:05:42,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:05:42,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:05:42,629 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:05:42,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 19:05:42,629 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:05:42,631 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:05:42,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:05:42,631 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:05:42,632 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_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbba3ede4e91b7384b0dde986cc9a2a86c4a62c3 [2021-10-15 19:05:42,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:05:42,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:05:42,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:05:42,953 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:05:42,954 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:05:42,955 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2021-10-15 19:05:43,030 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/bin/uautomizer-hJ6jxDFKc3/data/b6ffb36d1/48e46494c7b34796a01e81de318f0fb7/FLAG2e3b941a1 [2021-10-15 19:05:43,614 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:05:43,615 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2021-10-15 19:05:43,622 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/bin/uautomizer-hJ6jxDFKc3/data/b6ffb36d1/48e46494c7b34796a01e81de318f0fb7/FLAG2e3b941a1 [2021-10-15 19:05:43,993 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/bin/uautomizer-hJ6jxDFKc3/data/b6ffb36d1/48e46494c7b34796a01e81de318f0fb7 [2021-10-15 19:05:43,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:05:43,997 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:05:43,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:05:43,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:05:44,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:05:44,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:05:43" (1/1) ... [2021-10-15 19:05:44,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d7f0557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:05:44, skipping insertion in model container [2021-10-15 19:05:44,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:05:43" (1/1) ... [2021-10-15 19:05:44,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:05:44,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:05:44,217 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_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c[1110,1123] [2021-10-15 19:05:44,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:05:44,232 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:05:44,249 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_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c[1110,1123] [2021-10-15 19:05:44,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:05:44,265 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:05:44,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:05:44 WrapperNode [2021-10-15 19:05:44,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:05:44,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:05:44,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:05:44,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:05:44,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:05:44" (1/1) ... [2021-10-15 19:05:44,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:05:44" (1/1) ... [2021-10-15 19:05:44,301 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:05:44,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:05:44,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:05:44,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:05:44,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:05:44" (1/1) ... [2021-10-15 19:05:44,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:05:44" (1/1) ... [2021-10-15 19:05:44,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:05:44" (1/1) ... [2021-10-15 19:05:44,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:05:44" (1/1) ... [2021-10-15 19:05:44,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:05:44" (1/1) ... [2021-10-15 19:05:44,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:05:44" (1/1) ... [2021-10-15 19:05:44,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:05:44" (1/1) ... [2021-10-15 19:05:44,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:05:44,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:05:44,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:05:44,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:05:44,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:05:44" (1/1) ... [2021-10-15 19:05:44,333 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:05:44,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:05:44,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:05:44,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:05:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:05:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:05:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:05:44,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:05:44,628 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:05:44,628 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-15 19:05:44,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:05:44 BoogieIcfgContainer [2021-10-15 19:05:44,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:05:44,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:05:44,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:05:44,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:05:44,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:05:43" (1/3) ... [2021-10-15 19:05:44,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e45b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:05:44, skipping insertion in model container [2021-10-15 19:05:44,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:05:44" (2/3) ... [2021-10-15 19:05:44,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e45b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:05:44, skipping insertion in model container [2021-10-15 19:05:44,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:05:44" (3/3) ... [2021-10-15 19:05:44,639 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.c [2021-10-15 19:05:44,645 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:05:44,646 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-15 19:05:44,698 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:05:44,705 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 19:05:44,706 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-15 19:05:44,716 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 12 places, 16 transitions, 32 flow [2021-10-15 19:05:44,737 INFO L129 PetriNetUnfolder]: 5/16 cut-off events. [2021-10-15 19:05:44,737 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:05:44,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17 conditions, 16 events. 5/16 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 0 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-10-15 19:05:44,740 INFO L82 GeneralOperation]: Start removeDead. Operand has 12 places, 16 transitions, 32 flow [2021-10-15 19:05:44,744 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 9 places, 9 transitions, 18 flow [2021-10-15 19:05:44,746 INFO L129 PetriNetUnfolder]: 1/8 cut-off events. [2021-10-15 19:05:44,747 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:05:44,747 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:05:44,748 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:05:44,749 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:05:44,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:05:44,755 INFO L82 PathProgramCache]: Analyzing trace with hash 179596396, now seen corresponding path program 1 times [2021-10-15 19:05:44,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:05:44,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569887477] [2021-10-15 19:05:44,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:05:44,767 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:05:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:05:45,054 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 19:05:45,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:05:45,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569887477] [2021-10-15 19:05:45,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569887477] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:05:45,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:05:45,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-15 19:05:45,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056066741] [2021-10-15 19:05:45,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-15 19:05:45,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:05:45,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 19:05:45,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:05:45,086 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 16 [2021-10-15 19:05:45,089 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 9 places, 9 transitions, 18 flow. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 19:05:45,090 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:05:45,090 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 16 [2021-10-15 19:05:45,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:05:45,250 INFO L129 PetriNetUnfolder]: 1/12 cut-off events. [2021-10-15 19:05:45,250 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:05:45,251 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 12 events. 1/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 1/11 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-10-15 19:05:45,252 INFO L132 encePairwiseOnDemand]: 11/16 looper letters, 6 selfloop transitions, 2 changer transitions 2/12 dead transitions. [2021-10-15 19:05:45,252 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 12 transitions, 44 flow [2021-10-15 19:05:45,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-15 19:05:45,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-15 19:05:45,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2021-10-15 19:05:45,265 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.3875 [2021-10-15 19:05:45,265 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 31 transitions. [2021-10-15 19:05:45,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 31 transitions. [2021-10-15 19:05:45,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:05:45,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 31 transitions. [2021-10-15 19:05:45,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 19:05:45,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 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 19:05:45,295 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 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 19:05:45,297 INFO L186 Difference]: Start difference. First operand has 9 places, 9 transitions, 18 flow. Second operand 5 states and 31 transitions. [2021-10-15 19:05:45,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 12 transitions, 44 flow [2021-10-15 19:05:45,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 12 transitions, 44 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:05:45,304 INFO L242 Difference]: Finished difference. Result has 16 places, 10 transitions, 34 flow [2021-10-15 19:05:45,306 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=16, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=34, PETRI_PLACES=16, PETRI_TRANSITIONS=10} [2021-10-15 19:05:45,307 INFO L334 CegarLoopForPetriNet]: 9 programPoint places, 7 predicate places. [2021-10-15 19:05:45,307 INFO L470 AbstractCegarLoop]: Abstraction has has 16 places, 10 transitions, 34 flow [2021-10-15 19:05:45,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 19:05:45,308 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:05:45,308 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:05:45,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 19:05:45,309 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:05:45,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:05:45,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1270581676, now seen corresponding path program 1 times [2021-10-15 19:05:45,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:05:45,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237887863] [2021-10-15 19:05:45,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:05:45,311 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:05:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:05:45,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:05:45,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:05:45,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237887863] [2021-10-15 19:05:45,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237887863] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:05:45,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770815376] [2021-10-15 19:05:45,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:05:45,530 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:05:45,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:05:45,539 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:05:45,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-15 19:05:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:05:45,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-15 19:05:45,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:05:45,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:05:45,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770815376] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:05:45,811 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:05:45,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-15 19:05:45,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860848777] [2021-10-15 19:05:45,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-15 19:05:45,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:05:45,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-15 19:05:45,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-15 19:05:45,830 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 16 [2021-10-15 19:05:45,831 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 10 transitions, 34 flow. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 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 19:05:45,831 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:05:45,831 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 16 [2021-10-15 19:05:45,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:05:45,957 INFO L129 PetriNetUnfolder]: 1/11 cut-off events. [2021-10-15 19:05:45,960 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-15 19:05:45,962 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 11 events. 1/11 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 2/11 useless extension candidates. Maximal degree in co-relation 30. Up to 6 conditions per place. [2021-10-15 19:05:45,963 INFO L132 encePairwiseOnDemand]: 11/16 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2021-10-15 19:05:45,963 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 11 transitions, 60 flow [2021-10-15 19:05:45,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-15 19:05:45,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-15 19:05:45,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 48 transitions. [2021-10-15 19:05:45,967 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2021-10-15 19:05:45,968 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 48 transitions. [2021-10-15 19:05:45,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 48 transitions. [2021-10-15 19:05:45,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:05:45,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 48 transitions. [2021-10-15 19:05:45,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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 19:05:45,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 16.0) internal successors, (160), 10 states have internal predecessors, (160), 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 19:05:45,980 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 16.0) internal successors, (160), 10 states have internal predecessors, (160), 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 19:05:45,981 INFO L186 Difference]: Start difference. First operand has 16 places, 10 transitions, 34 flow. Second operand 9 states and 48 transitions. [2021-10-15 19:05:45,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 11 transitions, 60 flow [2021-10-15 19:05:45,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 11 transitions, 52 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-10-15 19:05:45,983 INFO L242 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2021-10-15 19:05:45,983 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=16, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=18, PETRI_TRANSITIONS=0} [2021-10-15 19:05:45,984 INFO L334 CegarLoopForPetriNet]: 9 programPoint places, 9 predicate places. [2021-10-15 19:05:45,984 INFO L470 AbstractCegarLoop]: Abstraction has has 18 places, 0 transitions, 0 flow [2021-10-15 19:05:45,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 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 19:05:45,987 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:05:46,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-15 19:05:46,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-15 19:05:46,215 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:05:46,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:05:46 BoogieIcfgContainer [2021-10-15 19:05:46,219 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:05:46,220 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:05:46,220 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:05:46,220 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:05:46,221 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:05:44" (3/4) ... [2021-10-15 19:05:46,226 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-15 19:05:46,240 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-15 19:05:46,240 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-15 19:05:46,240 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 19:05:46,241 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 19:05:46,295 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:05:46,295 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:05:46,302 INFO L168 Benchmark]: Toolchain (without parser) took 2298.29 ms. Allocated memory was 125.8 MB in the beginning and 169.9 MB in the end (delta: 44.0 MB). Free memory was 94.9 MB in the beginning and 115.9 MB in the end (delta: -21.0 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. [2021-10-15 19:05:46,302 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 88.1 MB. Free memory is still 45.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:05:46,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.13 ms. Allocated memory is still 125.8 MB. Free memory was 94.6 MB in the beginning and 99.5 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:05:46,303 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.22 ms. Allocated memory is still 125.8 MB. Free memory was 99.5 MB in the beginning and 98.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:05:46,304 INFO L168 Benchmark]: Boogie Preprocessor took 19.70 ms. Allocated memory is still 125.8 MB. Free memory was 98.2 MB in the beginning and 97.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:05:46,304 INFO L168 Benchmark]: RCFGBuilder took 307.91 ms. Allocated memory is still 125.8 MB. Free memory was 97.1 MB in the beginning and 87.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:05:46,305 INFO L168 Benchmark]: TraceAbstraction took 1587.69 ms. Allocated memory was 125.8 MB in the beginning and 169.9 MB in the end (delta: 44.0 MB). Free memory was 87.5 MB in the beginning and 118.8 MB in the end (delta: -31.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:05:46,305 INFO L168 Benchmark]: Witness Printer took 75.04 ms. Allocated memory is still 169.9 MB. Free memory was 118.8 MB in the beginning and 115.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:05:46,307 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 88.1 MB. Free memory is still 45.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 267.13 ms. Allocated memory is still 125.8 MB. Free memory was 94.6 MB in the beginning and 99.5 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.22 ms. Allocated memory is still 125.8 MB. Free memory was 99.5 MB in the beginning and 98.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.70 ms. Allocated memory is still 125.8 MB. Free memory was 98.2 MB in the beginning and 97.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 307.91 ms. Allocated memory is still 125.8 MB. Free memory was 97.1 MB in the beginning and 87.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1587.69 ms. Allocated memory was 125.8 MB in the beginning and 169.9 MB in the end (delta: 44.0 MB). Free memory was 87.5 MB in the beginning and 118.8 MB in the end (delta: -31.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. * Witness Printer took 75.04 ms. Allocated memory is still 169.9 MB. Free memory was 118.8 MB in the beginning and 115.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 53]: 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, 12 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1521.6ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 381.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 38.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 7 SDtfs, 12 SDslu, 7 SDs, 0 SdLazy, 45 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 77.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 304.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=1, InterpolantAutomatonStates: 14, 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: 19.5ms SsaConstructionTime, 81.9ms SatisfiabilityAnalysisTime, 546.7ms InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 157 SizeOfPredicates, 5 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-15 19:05:46,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29634ebd-1ffe-4e02-a8da-11a4dcde2d94/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...