./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/n.c40.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/n.c40.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be --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 ec147baa41deaa706a3db1972af791532e50c36ff3c23d3d92f8d6bea9417e65 ....................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/n.c40.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be --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 ec147baa41deaa706a3db1972af791532e50c36ff3c23d3d92f8d6bea9417e65 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 18:59:46,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 18:59:46,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 18:59:46,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 18:59:46,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 18:59:46,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 18:59:46,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 18:59:46,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 18:59:46,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 18:59:46,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 18:59:46,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 18:59:46,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 18:59:46,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 18:59:46,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 18:59:46,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 18:59:46,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 18:59:46,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 18:59:46,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 18:59:46,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 18:59:46,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 18:59:46,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 18:59:46,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 18:59:46,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 18:59:46,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 18:59:46,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 18:59:46,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 18:59:46,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 18:59:46,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 18:59:46,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 18:59:46,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 18:59:46,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 18:59:46,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 18:59:46,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 18:59:46,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 18:59:46,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 18:59:46,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 18:59:46,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 18:59:46,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 18:59:46,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 18:59:46,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 18:59:46,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 18:59:46,383 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 18:59:46,408 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 18:59:46,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 18:59:46,408 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 18:59:46,409 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 18:59:46,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 18:59:46,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 18:59:46,410 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 18:59:46,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 18:59:46,411 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 18:59:46,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 18:59:46,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 18:59:46,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 18:59:46,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 18:59:46,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 18:59:46,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 18:59:46,412 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 18:59:46,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 18:59:46,413 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 18:59:46,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 18:59:46,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 18:59:46,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 18:59:46,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 18:59:46,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 18:59:46,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 18:59:46,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 18:59:46,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 18:59:46,415 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 18:59:46,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 18:59:46,416 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 18:59:46,416 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 18:59:46,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 18:59:46,416 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 18:59:46,416 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_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec147baa41deaa706a3db1972af791532e50c36ff3c23d3d92f8d6bea9417e65 [2021-10-21 18:59:46,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 18:59:46,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 18:59:46,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 18:59:46,709 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 18:59:46,713 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 18:59:46,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/loops/n.c40.c [2021-10-21 18:59:46,793 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/data/5d7862fcc/88638b92648248dcb28a7e991b47e601/FLAG3edc84bc3 [2021-10-21 18:59:47,316 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 18:59:47,316 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/sv-benchmarks/c/loops/n.c40.c [2021-10-21 18:59:47,323 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/data/5d7862fcc/88638b92648248dcb28a7e991b47e601/FLAG3edc84bc3 [2021-10-21 18:59:47,722 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/data/5d7862fcc/88638b92648248dcb28a7e991b47e601 [2021-10-21 18:59:47,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 18:59:47,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 18:59:47,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 18:59:47,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 18:59:47,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 18:59:47,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 06:59:47" (1/1) ... [2021-10-21 18:59:47,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ed4b28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:47, skipping insertion in model container [2021-10-21 18:59:47,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 06:59:47" (1/1) ... [2021-10-21 18:59:47,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 18:59:47,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 18:59:47,909 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_2cc6f034-8159-49fe-b7cc-b9e332470965/sv-benchmarks/c/loops/n.c40.c[498,511] [2021-10-21 18:59:47,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 18:59:47,924 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 18:59:47,940 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_2cc6f034-8159-49fe-b7cc-b9e332470965/sv-benchmarks/c/loops/n.c40.c[498,511] [2021-10-21 18:59:47,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 18:59:47,957 INFO L208 MainTranslator]: Completed translation [2021-10-21 18:59:47,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:47 WrapperNode [2021-10-21 18:59:47,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 18:59:47,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 18:59:47,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 18:59:47,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 18:59:47,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:47" (1/1) ... [2021-10-21 18:59:47,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:47" (1/1) ... [2021-10-21 18:59:47,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 18:59:47,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 18:59:47,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 18:59:47,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 18:59:48,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:47" (1/1) ... [2021-10-21 18:59:48,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:47" (1/1) ... [2021-10-21 18:59:48,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:47" (1/1) ... [2021-10-21 18:59:48,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:47" (1/1) ... [2021-10-21 18:59:48,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:47" (1/1) ... [2021-10-21 18:59:48,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:47" (1/1) ... [2021-10-21 18:59:48,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:47" (1/1) ... [2021-10-21 18:59:48,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 18:59:48,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 18:59:48,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 18:59:48,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 18:59:48,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:47" (1/1) ... [2021-10-21 18:59:48,030 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 18:59:48,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 18:59:48,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 18:59:48,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 18:59:48,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 18:59:48,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 18:59:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 18:59:48,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 18:59:48,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 18:59:48,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 18:59:48,350 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 18:59:48,350 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-21 18:59:48,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 06:59:48 BoogieIcfgContainer [2021-10-21 18:59:48,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 18:59:48,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 18:59:48,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 18:59:48,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 18:59:48,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 06:59:47" (1/3) ... [2021-10-21 18:59:48,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aaf5995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 06:59:48, skipping insertion in model container [2021-10-21 18:59:48,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:47" (2/3) ... [2021-10-21 18:59:48,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aaf5995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 06:59:48, skipping insertion in model container [2021-10-21 18:59:48,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 06:59:48" (3/3) ... [2021-10-21 18:59:48,380 INFO L111 eAbstractionObserver]: Analyzing ICFG n.c40.c [2021-10-21 18:59:48,399 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 18:59:48,400 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 18:59:48,486 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 18:59:48,493 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 [2021-10-21 18:59:48,494 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 18:59:48,510 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) [2021-10-21 18:59:48,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-21 18:59:48,516 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 18:59:48,517 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 18:59:48,517 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 18:59:48,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 18:59:48,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1813493552, now seen corresponding path program 1 times [2021-10-21 18:59:48,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 18:59:48,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216632755] [2021-10-21 18:59:48,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 18:59:48,535 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 18:59:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 18:59:48,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:59:48,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 18:59:48,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216632755] [2021-10-21 18:59:48,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216632755] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 18:59:48,792 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 18:59:48,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 18:59:48,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340262199] [2021-10-21 18:59:48,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 18:59:48,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 18:59:48,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 18:59:48,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 18:59:48,814 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-21 18:59:48,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 18:59:48,827 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2021-10-21 18:59:48,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 18:59:48,831 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-10-21 18:59:48,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 18:59:48,839 INFO L225 Difference]: With dead ends: 22 [2021-10-21 18:59:48,839 INFO L226 Difference]: Without dead ends: 9 [2021-10-21 18:59:48,842 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 18:59:48,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-21 18:59:48,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-21 18:59:48,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 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) [2021-10-21 18:59:48,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-10-21 18:59:48,870 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2021-10-21 18:59:48,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 18:59:48,871 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-10-21 18:59:48,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-21 18:59:48,871 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-10-21 18:59:48,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-21 18:59:48,872 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 18:59:48,872 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 18:59:48,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 18:59:48,872 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 18:59:48,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 18:59:48,873 INFO L82 PathProgramCache]: Analyzing trace with hash 177687787, now seen corresponding path program 1 times [2021-10-21 18:59:48,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 18:59:48,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409521610] [2021-10-21 18:59:48,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 18:59:48,874 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 18:59:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 18:59:48,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:59:48,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 18:59:48,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409521610] [2021-10-21 18:59:48,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409521610] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 18:59:48,932 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 18:59:48,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 18:59:48,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067023818] [2021-10-21 18:59:48,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 18:59:48,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 18:59:48,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 18:59:48,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 18:59:48,936 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-10-21 18:59:48,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 18:59:48,959 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-10-21 18:59:48,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 18:59:48,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2021-10-21 18:59:48,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 18:59:48,960 INFO L225 Difference]: With dead ends: 16 [2021-10-21 18:59:48,961 INFO L226 Difference]: Without dead ends: 11 [2021-10-21 18:59:48,962 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 18:59:48,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-21 18:59:48,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-21 18:59:48,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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) [2021-10-21 18:59:48,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-10-21 18:59:48,965 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2021-10-21 18:59:48,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 18:59:48,966 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-10-21 18:59:48,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-10-21 18:59:48,966 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-10-21 18:59:48,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 18:59:48,967 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 18:59:48,967 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 18:59:48,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 18:59:48,968 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 18:59:48,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 18:59:48,969 INFO L82 PathProgramCache]: Analyzing trace with hash 468121936, now seen corresponding path program 1 times [2021-10-21 18:59:48,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 18:59:48,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585558108] [2021-10-21 18:59:48,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 18:59:48,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 18:59:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 18:59:49,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:59:49,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 18:59:49,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585558108] [2021-10-21 18:59:49,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585558108] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 18:59:49,104 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 18:59:49,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 18:59:49,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121249727] [2021-10-21 18:59:49,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 18:59:49,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 18:59:49,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 18:59:49,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 18:59:49,113 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-10-21 18:59:49,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 18:59:49,142 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2021-10-21 18:59:49,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 18:59:49,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2021-10-21 18:59:49,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 18:59:49,143 INFO L225 Difference]: With dead ends: 11 [2021-10-21 18:59:49,144 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 18:59:49,144 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 47.6ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-21 18:59:49,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 18:59:49,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 18:59:49,145 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) [2021-10-21 18:59:49,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 18:59:49,145 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-10-21 18:59:49,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 18:59:49,146 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 18:59:49,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-10-21 18:59:49,146 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 18:59:49,147 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 18:59:49,149 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 18:59:49,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 18:59:49,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 18:59:49,156 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 18:59:49,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 18:59:49,169 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 18:59:49,172 INFO L857 garLoopResultBuilder]: For program point L21(lines 21 22) no Hoare annotation was computed. [2021-10-21 18:59:49,173 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 18:59:49,173 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 18:59:49,173 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 18:59:49,173 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2021-10-21 18:59:49,175 INFO L860 garLoopResultBuilder]: At program point L24(lines 10 25) the Hoare annotation is: true [2021-10-21 18:59:49,176 INFO L857 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-10-21 18:59:49,177 INFO L857 garLoopResultBuilder]: For program point L20(lines 20 22) no Hoare annotation was computed. [2021-10-21 18:59:49,177 INFO L857 garLoopResultBuilder]: For program point L20-1(lines 20 22) no Hoare annotation was computed. [2021-10-21 18:59:49,177 INFO L857 garLoopResultBuilder]: For program point L14-1(lines 14 17) no Hoare annotation was computed. [2021-10-21 18:59:49,178 INFO L853 garLoopResultBuilder]: At program point L14-3(lines 14 17) the Hoare annotation is: (and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#x~0.base|)) (not (= |~#x~0.base| |~#y~0.base|)) (= ~i~0 0)) [2021-10-21 18:59:49,178 INFO L857 garLoopResultBuilder]: For program point L14-4(lines 14 17) no Hoare annotation was computed. [2021-10-21 18:59:49,183 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 18:59:49,193 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:240) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:453) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-21 18:59:49,202 INFO L168 Benchmark]: Toolchain (without parser) took 1474.80 ms. Allocated memory was 102.8 MB in the beginning and 136.3 MB in the end (delta: 33.6 MB). Free memory was 73.0 MB in the beginning and 64.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. [2021-10-21 18:59:49,203 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 102.8 MB. Free memory is still 55.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 18:59:49,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.05 ms. Allocated memory was 102.8 MB in the beginning and 136.3 MB in the end (delta: 33.6 MB). Free memory was 72.7 MB in the beginning and 110.9 MB in the end (delta: -38.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 18:59:49,205 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.47 ms. Allocated memory is still 136.3 MB. Free memory was 110.3 MB in the beginning and 109.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 18:59:49,206 INFO L168 Benchmark]: Boogie Preprocessor took 23.85 ms. Allocated memory is still 136.3 MB. Free memory was 109.2 MB in the beginning and 108.2 MB in the end (delta: 971.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 18:59:49,212 INFO L168 Benchmark]: RCFGBuilder took 342.76 ms. Allocated memory is still 136.3 MB. Free memory was 107.7 MB in the beginning and 97.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 18:59:49,213 INFO L168 Benchmark]: TraceAbstraction took 836.31 ms. Allocated memory is still 136.3 MB. Free memory was 97.2 MB in the beginning and 64.2 MB in the end (delta: 33.0 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-10-21 18:59:49,222 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 102.8 MB. Free memory is still 55.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 230.05 ms. Allocated memory was 102.8 MB in the beginning and 136.3 MB in the end (delta: 33.6 MB). Free memory was 72.7 MB in the beginning and 110.9 MB in the end (delta: -38.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.47 ms. Allocated memory is still 136.3 MB. Free memory was 110.3 MB in the beginning and 109.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.85 ms. Allocated memory is still 136.3 MB. Free memory was 109.2 MB in the beginning and 108.2 MB in the end (delta: 971.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 342.76 ms. Allocated memory is still 136.3 MB. Free memory was 107.7 MB in the beginning and 97.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 836.31 ms. Allocated memory is still 136.3 MB. Free memory was 97.2 MB in the beginning and 64.2 MB in the end (delta: 33.0 MB). Peak memory consumption was 33.6 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: 22]: 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: 699.3ms, OverallIterations: 3, TraceHistogramMax: 2, EmptinessCheckTime: 11.1ms, AutomataDifference: 106.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 18.9ms, InitialAbstractionConstructionTime: 11.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 22 SDtfs, 3 SDslu, 3 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 52.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 18.0ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 15 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 5.8ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 6.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 17.4ms SsaConstructionTime, 86.5ms SatisfiabilityAnalysisTime, 230.1ms InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 69 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:240) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-21 18:59:49,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 18:59:51,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 18:59:51,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 18:59:51,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 18:59:51,754 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 18:59:51,759 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 18:59:51,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 18:59:51,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 18:59:51,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 18:59:51,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 18:59:51,782 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 18:59:51,784 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 18:59:51,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 18:59:51,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 18:59:51,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 18:59:51,793 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 18:59:51,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 18:59:51,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 18:59:51,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 18:59:51,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 18:59:51,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 18:59:51,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 18:59:51,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 18:59:51,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 18:59:51,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 18:59:51,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 18:59:51,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 18:59:51,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 18:59:51,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 18:59:51,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 18:59:51,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 18:59:51,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 18:59:51,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 18:59:51,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 18:59:51,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 18:59:51,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 18:59:51,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 18:59:51,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 18:59:51,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 18:59:51,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 18:59:51,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 18:59:51,840 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-21 18:59:51,883 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 18:59:51,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 18:59:51,884 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 18:59:51,885 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 18:59:51,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 18:59:51,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 18:59:51,887 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 18:59:51,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 18:59:51,889 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 18:59:51,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 18:59:51,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 18:59:51,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 18:59:51,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 18:59:51,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 18:59:51,891 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 18:59:51,891 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 18:59:51,891 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 18:59:51,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 18:59:51,892 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 18:59:51,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 18:59:51,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 18:59:51,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 18:59:51,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 18:59:51,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 18:59:51,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 18:59:51,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 18:59:51,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 18:59:51,894 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 18:59:51,894 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 18:59:51,895 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 18:59:51,895 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 18:59:51,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 18:59:51,896 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 18:59:51,896 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 18:59:51,896 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec147baa41deaa706a3db1972af791532e50c36ff3c23d3d92f8d6bea9417e65 [2021-10-21 18:59:52,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 18:59:52,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 18:59:52,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 18:59:52,340 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 18:59:52,341 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 18:59:52,342 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/loops/n.c40.c [2021-10-21 18:59:52,420 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/data/6337e248d/03a0b3255a8b406fa825d8a7fa2b0f7e/FLAG9ba2afe3f [2021-10-21 18:59:52,984 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 18:59:52,985 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/sv-benchmarks/c/loops/n.c40.c [2021-10-21 18:59:52,991 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/data/6337e248d/03a0b3255a8b406fa825d8a7fa2b0f7e/FLAG9ba2afe3f [2021-10-21 18:59:53,380 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/data/6337e248d/03a0b3255a8b406fa825d8a7fa2b0f7e [2021-10-21 18:59:53,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 18:59:53,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 18:59:53,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 18:59:53,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 18:59:53,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 18:59:53,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 06:59:53" (1/1) ... [2021-10-21 18:59:53,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41210377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:53, skipping insertion in model container [2021-10-21 18:59:53,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 06:59:53" (1/1) ... [2021-10-21 18:59:53,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 18:59:53,420 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 18:59:53,556 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_2cc6f034-8159-49fe-b7cc-b9e332470965/sv-benchmarks/c/loops/n.c40.c[498,511] [2021-10-21 18:59:53,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 18:59:53,572 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 18:59:53,589 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_2cc6f034-8159-49fe-b7cc-b9e332470965/sv-benchmarks/c/loops/n.c40.c[498,511] [2021-10-21 18:59:53,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 18:59:53,605 INFO L208 MainTranslator]: Completed translation [2021-10-21 18:59:53,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:53 WrapperNode [2021-10-21 18:59:53,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 18:59:53,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 18:59:53,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 18:59:53,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 18:59:53,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:53" (1/1) ... [2021-10-21 18:59:53,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:53" (1/1) ... [2021-10-21 18:59:53,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 18:59:53,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 18:59:53,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 18:59:53,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 18:59:53,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:53" (1/1) ... [2021-10-21 18:59:53,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:53" (1/1) ... [2021-10-21 18:59:53,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:53" (1/1) ... [2021-10-21 18:59:53,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:53" (1/1) ... [2021-10-21 18:59:53,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:53" (1/1) ... [2021-10-21 18:59:53,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:53" (1/1) ... [2021-10-21 18:59:53,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:53" (1/1) ... [2021-10-21 18:59:53,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 18:59:53,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 18:59:53,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 18:59:53,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 18:59:53,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:53" (1/1) ... [2021-10-21 18:59:53,751 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 18:59:53,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 18:59:53,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 18:59:53,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 18:59:53,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-21 18:59:53,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 18:59:53,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 18:59:53,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-21 18:59:53,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-21 18:59:53,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 18:59:54,160 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 18:59:54,160 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-21 18:59:54,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 06:59:54 BoogieIcfgContainer [2021-10-21 18:59:54,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 18:59:54,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 18:59:54,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 18:59:54,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 18:59:54,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 06:59:53" (1/3) ... [2021-10-21 18:59:54,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a0e4f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 06:59:54, skipping insertion in model container [2021-10-21 18:59:54,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:59:53" (2/3) ... [2021-10-21 18:59:54,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a0e4f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 06:59:54, skipping insertion in model container [2021-10-21 18:59:54,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 06:59:54" (3/3) ... [2021-10-21 18:59:54,170 INFO L111 eAbstractionObserver]: Analyzing ICFG n.c40.c [2021-10-21 18:59:54,175 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 18:59:54,175 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 18:59:54,235 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 18:59:54,247 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 [2021-10-21 18:59:54,248 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 18:59:54,267 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) [2021-10-21 18:59:54,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-21 18:59:54,288 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 18:59:54,289 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 18:59:54,290 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 18:59:54,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 18:59:54,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1813493552, now seen corresponding path program 1 times [2021-10-21 18:59:54,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 18:59:54,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [987542371] [2021-10-21 18:59:54,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 18:59:54,331 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 18:59:54,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 18:59:54,339 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 18:59:54,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 18:59:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 18:59:54,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-21 18:59:54,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 18:59:54,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:59:54,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 18:59:54,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:59:54,520 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 18:59:54,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [987542371] [2021-10-21 18:59:54,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [987542371] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 18:59:54,522 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 18:59:54,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 18:59:54,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617347719] [2021-10-21 18:59:54,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 18:59:54,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 18:59:54,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 18:59:54,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 18:59:54,543 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-21 18:59:54,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 18:59:54,556 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2021-10-21 18:59:54,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 18:59:54,557 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-10-21 18:59:54,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 18:59:54,565 INFO L225 Difference]: With dead ends: 22 [2021-10-21 18:59:54,565 INFO L226 Difference]: Without dead ends: 9 [2021-10-21 18:59:54,567 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 18:59:54,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-21 18:59:54,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-21 18:59:54,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 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) [2021-10-21 18:59:54,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-10-21 18:59:54,601 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2021-10-21 18:59:54,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 18:59:54,601 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-10-21 18:59:54,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-21 18:59:54,601 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-10-21 18:59:54,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-21 18:59:54,602 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 18:59:54,602 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 18:59:54,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 18:59:54,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 18:59:54,827 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 18:59:54,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 18:59:54,831 INFO L82 PathProgramCache]: Analyzing trace with hash 177687787, now seen corresponding path program 1 times [2021-10-21 18:59:54,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 18:59:54,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [56409693] [2021-10-21 18:59:54,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 18:59:54,833 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 18:59:54,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 18:59:54,836 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 18:59:54,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 18:59:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 18:59:54,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 18:59:54,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 18:59:54,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:59:54,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 18:59:55,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:59:55,054 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 18:59:55,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [56409693] [2021-10-21 18:59:55,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [56409693] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 18:59:55,055 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 18:59:55,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-21 18:59:55,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959768787] [2021-10-21 18:59:55,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 18:59:55,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 18:59:55,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 18:59:55,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 18:59:55,058 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-10-21 18:59:55,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 18:59:55,089 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-10-21 18:59:55,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 18:59:55,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 8 [2021-10-21 18:59:55,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 18:59:55,090 INFO L225 Difference]: With dead ends: 16 [2021-10-21 18:59:55,090 INFO L226 Difference]: Without dead ends: 11 [2021-10-21 18:59:55,091 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 18:59:55,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-21 18:59:55,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-21 18:59:55,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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) [2021-10-21 18:59:55,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-10-21 18:59:55,095 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2021-10-21 18:59:55,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 18:59:55,095 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-10-21 18:59:55,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-10-21 18:59:55,096 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-10-21 18:59:55,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 18:59:55,096 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 18:59:55,096 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 18:59:55,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-21 18:59:55,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 18:59:55,307 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 18:59:55,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 18:59:55,307 INFO L82 PathProgramCache]: Analyzing trace with hash 468121936, now seen corresponding path program 1 times [2021-10-21 18:59:55,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 18:59:55,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171153713] [2021-10-21 18:59:55,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 18:59:55,309 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 18:59:55,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 18:59:55,311 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 18:59:55,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 18:59:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 18:59:55,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 18:59:55,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 18:59:55,632 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-21 18:59:55,668 INFO L354 Elim1Store]: treesize reduction 17, result has 43.3 percent of original size [2021-10-21 18:59:55,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 32 [2021-10-21 18:59:55,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 18:59:55,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 32 [2021-10-21 18:59:55,977 INFO L354 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2021-10-21 18:59:55,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 29 [2021-10-21 18:59:56,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:59:56,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 18:59:58,117 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-21 18:59:58,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 56 [2021-10-21 18:59:58,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 30 [2021-10-21 18:59:58,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 92 [2021-10-21 18:59:58,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:59:58,400 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 18:59:58,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171153713] [2021-10-21 18:59:58,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [171153713] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-21 18:59:58,400 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 18:59:58,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-10-21 18:59:58,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899863678] [2021-10-21 18:59:58,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-21 18:59:58,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 18:59:58,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-21 18:59:58,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=114, Unknown=1, NotChecked=0, Total=156 [2021-10-21 18:59:58,403 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 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) [2021-10-21 18:59:58,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 18:59:58,938 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-10-21 18:59:58,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 18:59:58,939 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 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 10 [2021-10-21 18:59:58,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 18:59:58,939 INFO L225 Difference]: With dead ends: 18 [2021-10-21 18:59:58,940 INFO L226 Difference]: Without dead ends: 13 [2021-10-21 18:59:58,941 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2370.6ms TimeCoverageRelationStatistics Valid=66, Invalid=173, Unknown=1, NotChecked=0, Total=240 [2021-10-21 18:59:58,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-21 18:59:58,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-21 18:59:58,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 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) [2021-10-21 18:59:58,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-10-21 18:59:58,944 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2021-10-21 18:59:58,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 18:59:58,944 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-10-21 18:59:58,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 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) [2021-10-21 18:59:58,945 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-10-21 18:59:58,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-21 18:59:58,945 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 18:59:58,946 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 18:59:58,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 18:59:59,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 18:59:59,155 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 18:59:59,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 18:59:59,155 INFO L82 PathProgramCache]: Analyzing trace with hash 402464885, now seen corresponding path program 2 times [2021-10-21 18:59:59,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 18:59:59,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294239582] [2021-10-21 18:59:59,156 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 18:59:59,156 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 18:59:59,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 18:59:59,158 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 18:59:59,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-21 18:59:59,284 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 18:59:59,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 18:59:59,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 18:59:59,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 18:59:59,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 62 [2021-10-21 18:59:59,332 INFO L354 Elim1Store]: treesize reduction 16, result has 27.3 percent of original size [2021-10-21 18:59:59,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 63 [2021-10-21 19:00:01,482 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-21 19:00:01,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 21 [2021-10-21 19:00:01,524 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 19:00:01,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:00:01,599 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 19:00:01,599 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:00:01,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294239582] [2021-10-21 19:00:01,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294239582] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:00:01,600 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:00:01,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-21 19:00:01,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69849723] [2021-10-21 19:00:01,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:00:01,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:00:01,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:00:01,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:00:01,602 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-10-21 19:00:05,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:00:05,650 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-10-21 19:00:05,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:00:05,651 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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 12 [2021-10-21 19:00:05,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:00:05,651 INFO L225 Difference]: With dead ends: 13 [2021-10-21 19:00:05,651 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:00:05,652 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 6088.3ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:00:05,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:00:05,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:00:05,652 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) [2021-10-21 19:00:05,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:00:05,652 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-10-21 19:00:05,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:00:05,653 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:00:05,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-10-21 19:00:05,653 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:00:05,653 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:00:05,656 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:00:05,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:00:05,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:00:05,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:00:05,872 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:00:05,913 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:00:07,953 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:00:07,953 INFO L857 garLoopResultBuilder]: For program point L21(lines 21 22) no Hoare annotation was computed. [2021-10-21 19:00:07,953 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 19:00:07,953 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:00:07,953 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:00:07,953 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2021-10-21 19:00:07,954 INFO L860 garLoopResultBuilder]: At program point L24(lines 10 25) the Hoare annotation is: true [2021-10-21 19:00:07,954 INFO L857 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-10-21 19:00:07,954 INFO L857 garLoopResultBuilder]: For program point L20(lines 20 22) no Hoare annotation was computed. [2021-10-21 19:00:07,954 INFO L857 garLoopResultBuilder]: For program point L20-1(lines 20 22) no Hoare annotation was computed. [2021-10-21 19:00:07,954 INFO L857 garLoopResultBuilder]: For program point L14-1(lines 14 17) no Hoare annotation was computed. [2021-10-21 19:00:07,955 INFO L853 garLoopResultBuilder]: At program point L14-3(lines 14 17) the Hoare annotation is: (and (exists ((|~#y~0.base| (_ BitVec 32))) (and (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)) (select |#memory_int| |~#y~0.base|)) (not (= |~#x~0.base| |~#y~0.base|)))) (= ~i~0 (_ bv0 32)) (= (select |#memory_int| |~#x~0.base|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32))) (= |~#x~0.offset| (_ bv0 32)) (= |~#y~0.offset| (_ bv0 32))) [2021-10-21 19:00:07,955 INFO L857 garLoopResultBuilder]: For program point L14-4(lines 14 17) no Hoare annotation was computed. [2021-10-21 19:00:07,959 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:00:07,966 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:456) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:135) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:453) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-21 19:00:07,969 INFO L168 Benchmark]: Toolchain (without parser) took 14582.25 ms. Allocated memory was 65.0 MB in the beginning and 83.9 MB in the end (delta: 18.9 MB). Free memory was 43.9 MB in the beginning and 63.2 MB in the end (delta: -19.3 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:00:07,969 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 65.0 MB. Free memory is still 45.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:00:07,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 217.77 ms. Allocated memory is still 65.0 MB. Free memory was 43.7 MB in the beginning and 33.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:00:07,970 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.63 ms. Allocated memory is still 65.0 MB. Free memory was 33.8 MB in the beginning and 47.1 MB in the end (delta: -13.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:00:07,971 INFO L168 Benchmark]: Boogie Preprocessor took 48.39 ms. Allocated memory is still 65.0 MB. Free memory was 47.1 MB in the beginning and 46.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:00:07,972 INFO L168 Benchmark]: RCFGBuilder took 426.24 ms. Allocated memory is still 65.0 MB. Free memory was 46.0 MB in the beginning and 35.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:00:07,973 INFO L168 Benchmark]: TraceAbstraction took 13803.99 ms. Allocated memory was 65.0 MB in the beginning and 83.9 MB in the end (delta: 18.9 MB). Free memory was 34.6 MB in the beginning and 63.2 MB in the end (delta: -28.6 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:00:07,976 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 65.0 MB. Free memory is still 45.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 217.77 ms. Allocated memory is still 65.0 MB. Free memory was 43.7 MB in the beginning and 33.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.63 ms. Allocated memory is still 65.0 MB. Free memory was 33.8 MB in the beginning and 47.1 MB in the end (delta: -13.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.39 ms. Allocated memory is still 65.0 MB. Free memory was 47.1 MB in the beginning and 46.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 426.24 ms. Allocated memory is still 65.0 MB. Free memory was 46.0 MB in the beginning and 35.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13803.99 ms. Allocated memory was 65.0 MB in the beginning and 83.9 MB in the end (delta: 18.9 MB). Free memory was 34.6 MB in the beginning and 63.2 MB in the end (delta: -28.6 MB). Peak memory consumption was 29.7 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: 22]: 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: 13725.4ms, OverallIterations: 4, TraceHistogramMax: 3, EmptinessCheckTime: 29.2ms, AutomataDifference: 4662.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 2084.2ms, InitialAbstractionConstructionTime: 12.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 27 SDtfs, 21 SDslu, 19 SDs, 0 SdLazy, 49 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 140.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 8470.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 25.2ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 29 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 54.1ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 2024.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 48.2ms SsaConstructionTime, 146.5ms SatisfiabilityAnalysisTime, 5556.1ms InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 66 ConstructedInterpolants, 16 QuantifiedInterpolants, 481 SizeOfPredicates, 24 NumberOfNonLiveVariables, 183 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 12/16 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: 10]: Loop Invariant Derived loop invariant: 1 - ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-21 19:00:08,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc6f034-8159-49fe-b7cc-b9e332470965/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...