./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test28-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1f84eb-d829-4585-b9a8-50dc1d1370de/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1f84eb-d829-4585-b9a8-50dc1d1370de/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1f84eb-d829-4585-b9a8-50dc1d1370de/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1f84eb-d829-4585-b9a8-50dc1d1370de/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test28-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1f84eb-d829-4585-b9a8-50dc1d1370de/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1f84eb-d829-4585-b9a8-50dc1d1370de/bin/uautomizer-w2VwFs6gM0 --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 6c511505c8997149f6161c9d2f8577095c5b8fbe5036e88e3ff0dd12fc7ed028 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:34:41,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:34:41,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:34:41,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:34:41,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:34:41,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:34:41,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:34:41,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:34:41,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:34:41,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:34:41,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:34:41,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:34:41,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:34:41,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:34:41,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:34:41,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:34:41,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:34:41,374 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:34:41,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:34:41,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:34:41,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:34:41,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:34:41,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:34:41,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:34:41,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:34:41,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:34:41,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:34:41,393 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:34:41,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:34:41,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:34:41,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:34:41,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:34:41,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:34:41,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:34:41,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:34:41,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:34:41,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:34:41,401 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:34:41,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:34:41,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:34:41,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:34:41,405 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1f84eb-d829-4585-b9a8-50dc1d1370de/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 15:34:41,431 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:34:41,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:34:41,432 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:34:41,432 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:34:41,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:34:41,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:34:41,434 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:34:41,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:34:41,435 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:34:41,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:34:41,436 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:34:41,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:34:41,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:34:41,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:34:41,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:34:41,438 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:34:41,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:34:41,438 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:34:41,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:34:41,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:34:41,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:34:41,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:34:41,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:34:41,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:34:41,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:34:41,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:34:41,442 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:34:41,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:34:41,442 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:34:41,443 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:34:41,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:34:41,443 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:34:41,443 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_4f1f84eb-d829-4585-b9a8-50dc1d1370de/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1f84eb-d829-4585-b9a8-50dc1d1370de/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c511505c8997149f6161c9d2f8577095c5b8fbe5036e88e3ff0dd12fc7ed028 [2021-11-22 15:34:41,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:34:41,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:34:41,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:34:41,746 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:34:41,747 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:34:41,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1f84eb-d829-4585-b9a8-50dc1d1370de/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-regression/test28-2.c [2021-11-22 15:34:41,810 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1f84eb-d829-4585-b9a8-50dc1d1370de/bin/uautomizer-w2VwFs6gM0/data/91d72374f/c23d0332c7174173a3230cc07eaac00f/FLAGcd81cfc01 [2021-11-22 15:34:42,243 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:34:42,247 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1f84eb-d829-4585-b9a8-50dc1d1370de/sv-benchmarks/c/ldv-regression/test28-2.c [2021-11-22 15:34:42,260 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1f84eb-d829-4585-b9a8-50dc1d1370de/bin/uautomizer-w2VwFs6gM0/data/91d72374f/c23d0332c7174173a3230cc07eaac00f/FLAGcd81cfc01 [2021-11-22 15:34:42,634 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1f84eb-d829-4585-b9a8-50dc1d1370de/bin/uautomizer-w2VwFs6gM0/data/91d72374f/c23d0332c7174173a3230cc07eaac00f [2021-11-22 15:34:42,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:34:42,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:34:42,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:34:42,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:34:42,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:34:42,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:34:42" (1/1) ... [2021-11-22 15:34:42,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45931fbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:34:42, skipping insertion in model container [2021-11-22 15:34:42,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:34:42" (1/1) ... [2021-11-22 15:34:42,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:34:42,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:34:42,858 WARN L230 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_4f1f84eb-d829-4585-b9a8-50dc1d1370de/sv-benchmarks/c/ldv-regression/test28-2.c[576,589] [2021-11-22 15:34:42,862 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:34:42,869 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:34:42,897 WARN L230 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_4f1f84eb-d829-4585-b9a8-50dc1d1370de/sv-benchmarks/c/ldv-regression/test28-2.c[576,589] [2021-11-22 15:34:42,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:34:42,916 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:34:42,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:34:42 WrapperNode [2021-11-22 15:34:42,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:34:42,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:34:42,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:34:42,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:34:42,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:34:42" (1/1) ... [2021-11-22 15:34:42,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:34:42" (1/1) ... [2021-11-22 15:34:42,960 INFO L137 Inliner]: procedures = 13, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2021-11-22 15:34:42,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:34:42,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:34:42,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:34:42,961 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:34:42,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:34:42" (1/1) ... [2021-11-22 15:34:42,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:34:42" (1/1) ... [2021-11-22 15:34:42,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:34:42" (1/1) ... [2021-11-22 15:34:42,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:34:42" (1/1) ... [2021-11-22 15:34:42,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:34:42" (1/1) ... [2021-11-22 15:34:42,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:34:42" (1/1) ... [2021-11-22 15:34:42,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:34:42" (1/1) ... [2021-11-22 15:34:42,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:34:42,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:34:42,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:34:42,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:34:42,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:34:42" (1/1) ... [2021-11-22 15:34:42,992 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:34:43,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1f84eb-d829-4585-b9a8-50dc1d1370de/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:34:43,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1f84eb-d829-4585-b9a8-50dc1d1370de/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:34:43,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1f84eb-d829-4585-b9a8-50dc1d1370de/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:34:43,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:34:43,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:34:43,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 15:34:43,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 15:34:43,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:34:43,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:34:43,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 15:34:43,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 15:34:43,126 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:34:43,127 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:34:43,242 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:34:43,248 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:34:43,248 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 15:34:43,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:34:43 BoogieIcfgContainer [2021-11-22 15:34:43,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:34:43,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:34:43,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:34:43,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:34:43,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:34:42" (1/3) ... [2021-11-22 15:34:43,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@730a476b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:34:43, skipping insertion in model container [2021-11-22 15:34:43,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:34:42" (2/3) ... [2021-11-22 15:34:43,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@730a476b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:34:43, skipping insertion in model container [2021-11-22 15:34:43,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:34:43" (3/3) ... [2021-11-22 15:34:43,259 INFO L111 eAbstractionObserver]: Analyzing ICFG test28-2.c [2021-11-22 15:34:43,264 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:34:43,265 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 15:34:43,314 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:34:43,322 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, mAutomataTypeConcurrency=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 [2021-11-22 15:34:43,322 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 15:34:43,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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) [2021-11-22 15:34:43,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-22 15:34:43,345 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:34:43,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:34:43,346 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:34:43,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:34:43,351 INFO L85 PathProgramCache]: Analyzing trace with hash -594068692, now seen corresponding path program 1 times [2021-11-22 15:34:43,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:34:43,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326204404] [2021-11-22 15:34:43,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:34:43,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:34:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:34:43,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:34:43,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:34:43,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326204404] [2021-11-22 15:34:43,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326204404] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:34:43,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:34:43,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 15:34:43,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700722010] [2021-11-22 15:34:43,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:34:43,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 15:34:43,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:34:43,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 15:34:43,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-22 15:34:43,723 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2021-11-22 15:34:43,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:34:43,809 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2021-11-22 15:34:43,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 15:34:43,812 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-22 15:34:43,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:34:43,819 INFO L225 Difference]: With dead ends: 25 [2021-11-22 15:34:43,820 INFO L226 Difference]: Without dead ends: 10 [2021-11-22 15:34:43,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-22 15:34:43,827 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 19 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:34:43,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 24 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:34:43,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-11-22 15:34:43,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-11-22 15:34:43,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.0) internal successors, (9), 9 states have internal predecessors, (9), 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) [2021-11-22 15:34:43,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2021-11-22 15:34:43,862 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 9 [2021-11-22 15:34:43,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:34:43,863 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2021-11-22 15:34:43,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2021-11-22 15:34:43,863 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2021-11-22 15:34:43,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-22 15:34:43,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:34:43,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:34:43,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:34:43,866 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:34:43,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:34:43,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1182785712, now seen corresponding path program 1 times [2021-11-22 15:34:43,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:34:43,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684973481] [2021-11-22 15:34:43,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:34:43,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:34:43,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:34:44,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:34:44,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:34:44,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684973481] [2021-11-22 15:34:44,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684973481] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:34:44,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:34:44,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-22 15:34:44,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89222604] [2021-11-22 15:34:44,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:34:44,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 15:34:44,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:34:44,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 15:34:44,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-22 15:34:44,197 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2021-11-22 15:34:44,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:34:44,309 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2021-11-22 15:34:44,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 15:34:44,310 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-22 15:34:44,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:34:44,310 INFO L225 Difference]: With dead ends: 10 [2021-11-22 15:34:44,310 INFO L226 Difference]: Without dead ends: 0 [2021-11-22 15:34:44,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-11-22 15:34:44,313 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:34:44,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 5 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:34:44,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-22 15:34:44,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-22 15:34:44,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:34:44,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-22 15:34:44,316 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-11-22 15:34:44,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:34:44,316 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 15:34:44,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2021-11-22 15:34:44,317 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-22 15:34:44,317 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-22 15:34:44,320 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 15:34:44,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 15:34:44,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-22 15:34:44,335 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-22 15:34:44,336 INFO L861 garLoopResultBuilder]: At program point L29(lines 12 30) the Hoare annotation is: true [2021-11-22 15:34:44,337 INFO L854 garLoopResultBuilder]: At program point L23(lines 13 30) the Hoare annotation is: false [2021-11-22 15:34:44,337 INFO L858 garLoopResultBuilder]: For program point L17(lines 17 21) no Hoare annotation was computed. [2021-11-22 15:34:44,337 INFO L858 garLoopResultBuilder]: For program point L17-2(lines 17 21) no Hoare annotation was computed. [2021-11-22 15:34:44,337 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-22 15:34:44,344 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-22 15:34:44,344 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-22 15:34:44,344 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 28) no Hoare annotation was computed. [2021-11-22 15:34:44,344 INFO L858 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-11-22 15:34:44,345 INFO L858 garLoopResultBuilder]: For program point L22-2(lines 22 24) no Hoare annotation was computed. [2021-11-22 15:34:44,345 INFO L858 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2021-11-22 15:34:44,346 INFO L858 garLoopResultBuilder]: For program point L16-2(line 16) no Hoare annotation was computed. [2021-11-22 15:34:44,351 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-22 15:34:44,359 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 15:34:44,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 03:34:44 BoogieIcfgContainer [2021-11-22 15:34:44,376 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 15:34:44,378 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 15:34:44,379 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 15:34:44,379 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 15:34:44,379 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:34:43" (3/4) ... [2021-11-22 15:34:44,385 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-22 15:34:44,400 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-22 15:34:44,401 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-22 15:34:44,401 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-22 15:34:44,401 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-22 15:34:44,430 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1f84eb-d829-4585-b9a8-50dc1d1370de/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 15:34:44,430 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 15:34:44,431 INFO L158 Benchmark]: Toolchain (without parser) took 1792.29ms. Allocated memory is still 138.4MB. Free memory was 101.8MB in the beginning and 59.6MB in the end (delta: 42.2MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2021-11-22 15:34:44,431 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory is still 118.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:34:44,431 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.96ms. Allocated memory is still 138.4MB. Free memory was 101.6MB in the beginning and 113.6MB in the end (delta: -12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 15:34:44,432 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.27ms. Allocated memory is still 138.4MB. Free memory was 113.6MB in the beginning and 112.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:34:44,432 INFO L158 Benchmark]: Boogie Preprocessor took 18.39ms. Allocated memory is still 138.4MB. Free memory was 112.1MB in the beginning and 111.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:34:44,433 INFO L158 Benchmark]: RCFGBuilder took 269.91ms. Allocated memory is still 138.4MB. Free memory was 111.0MB in the beginning and 101.1MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 15:34:44,433 INFO L158 Benchmark]: TraceAbstraction took 1124.53ms. Allocated memory is still 138.4MB. Free memory was 100.5MB in the beginning and 62.3MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2021-11-22 15:34:44,434 INFO L158 Benchmark]: Witness Printer took 51.73ms. Allocated memory is still 138.4MB. Free memory was 62.3MB in the beginning and 59.6MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-22 15:34:44,437 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory is still 118.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.96ms. Allocated memory is still 138.4MB. Free memory was 101.6MB in the beginning and 113.6MB in the end (delta: -12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.27ms. Allocated memory is still 138.4MB. Free memory was 113.6MB in the beginning and 112.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.39ms. Allocated memory is still 138.4MB. Free memory was 112.1MB in the beginning and 111.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 269.91ms. Allocated memory is still 138.4MB. Free memory was 111.0MB in the beginning and 101.1MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1124.53ms. Allocated memory is still 138.4MB. Free memory was 100.5MB in the beginning and 62.3MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 51.73ms. Allocated memory is still 138.4MB. Free memory was 62.3MB in the beginning and 59.6MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 28]: 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, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 68 IncrementalHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 8 mSDtfsCounter, 68 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 78 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 1 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-22 15:34:44,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1f84eb-d829-4585-b9a8-50dc1d1370de/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE