./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD --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 4d1375e0884273e701688a9a8eac55476ef970fe83c7d545ad9af0603bce9da2 ......................................................................................................................................................................................................................................................................................................................... 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_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD --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 4d1375e0884273e701688a9a8eac55476ef970fe83c7d545ad9af0603bce9da2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 22:49:21,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:49:21,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:49:21,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:49:21,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:49:21,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:49:21,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:49:21,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:49:21,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:49:21,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:49:21,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:49:21,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:49:21,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:49:21,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:49:21,290 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:49:21,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:49:21,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:49:21,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:49:21,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:49:21,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:49:21,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:49:21,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:49:21,327 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:49:21,328 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:49:21,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:49:21,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:49:21,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:49:21,339 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:49:21,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:49:21,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:49:21,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:49:21,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:49:21,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:49:21,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:49:21,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:49:21,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:49:21,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:49:21,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:49:21,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:49:21,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:49:21,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:49:21,357 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 22:49:21,418 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:49:21,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:49:21,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:49:21,424 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:49:21,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:49:21,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:49:21,427 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:49:21,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:49:21,428 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:49:21,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:49:21,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:49:21,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:49:21,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 22:49:21,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 22:49:21,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 22:49:21,431 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:49:21,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:49:21,432 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:49:21,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 22:49:21,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:49:21,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:49:21,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 22:49:21,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:49:21,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:49:21,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 22:49:21,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 22:49:21,435 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:49:21,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 22:49:21,435 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 22:49:21,438 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 22:49:21,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 22:49:21,439 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:49:21,439 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_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d1375e0884273e701688a9a8eac55476ef970fe83c7d545ad9af0603bce9da2 [2021-10-28 22:49:21,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:49:21,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:49:21,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:49:21,915 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:49:21,918 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:49:21,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound100.c [2021-10-28 22:49:22,007 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/data/8acebbd3f/ce0375c2cdc640d89b3a5f547eb030aa/FLAG7d53e08d1 [2021-10-28 22:49:22,711 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:49:22,716 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound100.c [2021-10-28 22:49:22,730 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/data/8acebbd3f/ce0375c2cdc640d89b3a5f547eb030aa/FLAG7d53e08d1 [2021-10-28 22:49:23,031 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/data/8acebbd3f/ce0375c2cdc640d89b3a5f547eb030aa [2021-10-28 22:49:23,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:49:23,037 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:49:23,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:49:23,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:49:23,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:49:23,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:49:23" (1/1) ... [2021-10-28 22:49:23,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d0741b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:23, skipping insertion in model container [2021-10-28 22:49:23,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:49:23" (1/1) ... [2021-10-28 22:49:23,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:49:23,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:49:23,311 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_f2e9077b-ec8b-447b-9755-890b03f8a3e6/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound100.c[709,722] [2021-10-28 22:49:23,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:49:23,385 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:49:23,406 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_f2e9077b-ec8b-447b-9755-890b03f8a3e6/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound100.c[709,722] [2021-10-28 22:49:23,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:49:23,460 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:49:23,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:23 WrapperNode [2021-10-28 22:49:23,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:49:23,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:49:23,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:49:23,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:49:23,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:23" (1/1) ... [2021-10-28 22:49:23,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:23" (1/1) ... [2021-10-28 22:49:23,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:49:23,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:49:23,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:49:23,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:49:23,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:23" (1/1) ... [2021-10-28 22:49:23,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:23" (1/1) ... [2021-10-28 22:49:23,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:23" (1/1) ... [2021-10-28 22:49:23,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:23" (1/1) ... [2021-10-28 22:49:23,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:23" (1/1) ... [2021-10-28 22:49:23,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:23" (1/1) ... [2021-10-28 22:49:23,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:23" (1/1) ... [2021-10-28 22:49:23,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:49:23,588 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:49:23,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:49:23,589 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:49:23,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:23" (1/1) ... [2021-10-28 22:49:23,603 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:49:23,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:49:23,634 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 22:49:23,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 22:49:23,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 22:49:23,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:49:23,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:49:23,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:49:24,136 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:49:24,136 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-10-28 22:49:24,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:49:24 BoogieIcfgContainer [2021-10-28 22:49:24,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:49:24,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 22:49:24,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 22:49:24,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 22:49:24,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:49:23" (1/3) ... [2021-10-28 22:49:24,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@351e6676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:49:24, skipping insertion in model container [2021-10-28 22:49:24,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:23" (2/3) ... [2021-10-28 22:49:24,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@351e6676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:49:24, skipping insertion in model container [2021-10-28 22:49:24,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:49:24" (3/3) ... [2021-10-28 22:49:24,165 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_unwindbound100.c [2021-10-28 22:49:24,172 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 22:49:24,186 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-28 22:49:24,259 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 22:49:24,268 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 [2021-10-28 22:49:24,268 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-28 22:49:24,303 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 25 states have (on average 1.6) internal successors, (40), 31 states have internal predecessors, (40), 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) [2021-10-28 22:49:24,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-28 22:49:24,310 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:49:24,311 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-28 22:49:24,312 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:49:24,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:49:24,319 INFO L85 PathProgramCache]: Analyzing trace with hash 890922791, now seen corresponding path program 1 times [2021-10-28 22:49:24,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:49:24,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082761314] [2021-10-28 22:49:24,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:49:24,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:49:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:49:24,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:24,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:49:24,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082761314] [2021-10-28 22:49:24,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082761314] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:49:24,516 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:49:24,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 22:49:24,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673731675] [2021-10-28 22:49:24,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 22:49:24,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:49:24,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 22:49:24,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 22:49:24,547 INFO L87 Difference]: Start difference. First operand has 32 states, 25 states have (on average 1.6) internal successors, (40), 31 states have internal predecessors, (40), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-10-28 22:49:24,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:49:24,569 INFO L93 Difference]: Finished difference Result 62 states and 78 transitions. [2021-10-28 22:49:24,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 22:49:24,571 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-10-28 22:49:24,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:49:24,582 INFO L225 Difference]: With dead ends: 62 [2021-10-28 22:49:24,582 INFO L226 Difference]: Without dead ends: 28 [2021-10-28 22:49:24,586 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 22:49:24,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-28 22:49:24,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-10-28 22:49:24,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 27 states have internal predecessors, (29), 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) [2021-10-28 22:49:24,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2021-10-28 22:49:24,628 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 6 [2021-10-28 22:49:24,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:49:24,628 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2021-10-28 22:49:24,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-10-28 22:49:24,629 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2021-10-28 22:49:24,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-28 22:49:24,630 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:49:24,630 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-28 22:49:24,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 22:49:24,631 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:49:24,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:49:24,632 INFO L85 PathProgramCache]: Analyzing trace with hash 889571274, now seen corresponding path program 1 times [2021-10-28 22:49:24,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:49:24,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732504387] [2021-10-28 22:49:24,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:49:24,633 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:49:24,656 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 22:49:24,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1898921993] [2021-10-28 22:49:24,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:49:24,657 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:49:24,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:49:24,660 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:49:24,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 22:49:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:49:24,758 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:49:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:49:24,819 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:49:24,820 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 22:49:24,823 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:49:24,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:49:24,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:49:24,827 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:49:24,827 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:49:24,827 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:49:24,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 22:49:25,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:49:25,058 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 22:49:25,062 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 22:49:25,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:49:25 BoogieIcfgContainer [2021-10-28 22:49:25,103 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 22:49:25,109 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:49:25,113 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:49:25,113 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:49:25,114 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:49:24" (3/4) ... [2021-10-28 22:49:25,118 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 22:49:25,119 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:49:25,127 INFO L168 Benchmark]: Toolchain (without parser) took 2083.79 ms. Allocated memory is still 104.9 MB. Free memory was 62.9 MB in the beginning and 50.4 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 22:49:25,128 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 104.9 MB. Free memory is still 79.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:49:25,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 419.76 ms. Allocated memory is still 104.9 MB. Free memory was 62.7 MB in the beginning and 78.6 MB in the end (delta: -15.9 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:49:25,133 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.67 ms. Allocated memory is still 104.9 MB. Free memory was 78.3 MB in the beginning and 76.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:49:25,134 INFO L168 Benchmark]: Boogie Preprocessor took 48.94 ms. Allocated memory is still 104.9 MB. Free memory was 76.7 MB in the beginning and 75.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:49:25,137 INFO L168 Benchmark]: RCFGBuilder took 565.65 ms. Allocated memory is still 104.9 MB. Free memory was 75.5 MB in the beginning and 76.5 MB in the end (delta: -992.9 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 22:49:25,141 INFO L168 Benchmark]: TraceAbstraction took 947.36 ms. Allocated memory is still 104.9 MB. Free memory was 76.2 MB in the beginning and 50.6 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:49:25,142 INFO L168 Benchmark]: Witness Printer took 11.12 ms. Allocated memory is still 104.9 MB. Free memory is still 50.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:49:25,146 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 104.9 MB. Free memory is still 79.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 419.76 ms. Allocated memory is still 104.9 MB. Free memory was 62.7 MB in the beginning and 78.6 MB in the end (delta: -15.9 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.67 ms. Allocated memory is still 104.9 MB. Free memory was 78.3 MB in the beginning and 76.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.94 ms. Allocated memory is still 104.9 MB. Free memory was 76.7 MB in the beginning and 75.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 565.65 ms. Allocated memory is still 104.9 MB. Free memory was 75.5 MB in the beginning and 76.5 MB in the end (delta: -992.9 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 947.36 ms. Allocated memory is still 104.9 MB. Free memory was 76.2 MB in the beginning and 50.6 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 11.12 ms. Allocated memory is still 104.9 MB. Free memory is still 50.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 34. Possible FailurePath: [L24] int counter = 0; VAL [counter=0] [L26] int r; [L27] double a, x, s; [L28] a = __VERIFIER_nondet_double() [L29] x = a [L30] s = 3.25 [L31] r = 1 VAL [counter=0] [L33] EXPR counter++ VAL [counter=1] [L33] COND TRUE counter++<100 [L17] COND TRUE !(cond) VAL [counter=1] [L19] reach_error() VAL [counter=1] - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 33 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 22:49:25,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/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-b2eff8b [2021-10-28 22:49:28,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:49:28,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:49:28,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:49:28,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:49:28,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:49:28,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:49:28,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:49:28,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:49:28,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:49:28,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:49:28,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:49:28,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:49:28,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:49:28,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:49:28,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:49:28,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:49:28,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:49:28,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:49:28,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:49:28,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:49:28,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:49:28,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:49:28,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:49:28,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:49:28,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:49:28,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:49:28,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:49:28,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:49:28,446 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:49:28,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:49:28,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:49:28,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:49:28,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:49:28,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:49:28,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:49:28,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:49:28,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:49:28,464 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:49:28,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:49:28,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:49:28,468 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 22:49:28,504 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:49:28,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:49:28,505 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:49:28,506 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:49:28,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:49:28,507 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:49:28,508 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:49:28,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:49:28,509 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:49:28,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:49:28,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:49:28,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 22:49:28,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 22:49:28,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 22:49:28,510 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 22:49:28,511 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 22:49:28,511 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:49:28,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:49:28,511 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:49:28,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 22:49:28,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:49:28,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:49:28,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 22:49:28,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:49:28,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:49:28,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 22:49:28,514 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 22:49:28,514 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 22:49:28,515 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 22:49:28,515 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 22:49:28,515 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 22:49:28,515 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 22:49:28,516 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:49:28,516 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 22:49:28,516 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_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d1375e0884273e701688a9a8eac55476ef970fe83c7d545ad9af0603bce9da2 [2021-10-28 22:49:29,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:49:29,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:49:29,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:49:29,063 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:49:29,064 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:49:29,065 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound100.c [2021-10-28 22:49:29,171 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/data/5a87d393d/c30bd96aeb5f4e54abb291fe71265e95/FLAGceffb69b6 [2021-10-28 22:49:29,922 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:49:29,929 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound100.c [2021-10-28 22:49:29,939 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/data/5a87d393d/c30bd96aeb5f4e54abb291fe71265e95/FLAGceffb69b6 [2021-10-28 22:49:30,238 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/data/5a87d393d/c30bd96aeb5f4e54abb291fe71265e95 [2021-10-28 22:49:30,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:49:30,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:49:30,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:49:30,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:49:30,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:49:30,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:49:30" (1/1) ... [2021-10-28 22:49:30,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1232414f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:30, skipping insertion in model container [2021-10-28 22:49:30,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:49:30" (1/1) ... [2021-10-28 22:49:30,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:49:30,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:49:30,492 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_f2e9077b-ec8b-447b-9755-890b03f8a3e6/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound100.c[709,722] [2021-10-28 22:49:30,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:49:30,549 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:49:30,573 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_f2e9077b-ec8b-447b-9755-890b03f8a3e6/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound100.c[709,722] [2021-10-28 22:49:30,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:49:30,619 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:49:30,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:30 WrapperNode [2021-10-28 22:49:30,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:49:30,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:49:30,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:49:30,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:49:30,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:30" (1/1) ... [2021-10-28 22:49:30,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:30" (1/1) ... [2021-10-28 22:49:30,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:49:30,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:49:30,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:49:30,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:49:30,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:30" (1/1) ... [2021-10-28 22:49:30,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:30" (1/1) ... [2021-10-28 22:49:30,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:30" (1/1) ... [2021-10-28 22:49:30,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:30" (1/1) ... [2021-10-28 22:49:30,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:30" (1/1) ... [2021-10-28 22:49:30,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:30" (1/1) ... [2021-10-28 22:49:30,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:30" (1/1) ... [2021-10-28 22:49:30,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:49:30,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:49:30,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:49:30,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:49:30,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:30" (1/1) ... [2021-10-28 22:49:30,786 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:49:30,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:49:30,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 22:49:30,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 22:49:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 22:49:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:49:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:49:30,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:49:43,502 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:49:43,502 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-10-28 22:49:43,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:49:43 BoogieIcfgContainer [2021-10-28 22:49:43,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:49:43,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 22:49:43,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 22:49:43,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 22:49:43,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:49:30" (1/3) ... [2021-10-28 22:49:43,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d59ce9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:49:43, skipping insertion in model container [2021-10-28 22:49:43,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:30" (2/3) ... [2021-10-28 22:49:43,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d59ce9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:49:43, skipping insertion in model container [2021-10-28 22:49:43,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:49:43" (3/3) ... [2021-10-28 22:49:43,518 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_unwindbound100.c [2021-10-28 22:49:43,526 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 22:49:43,526 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-28 22:49:43,594 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 22:49:43,603 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 [2021-10-28 22:49:43,603 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-28 22:49:43,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 25 states have (on average 1.6) internal successors, (40), 31 states have internal predecessors, (40), 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) [2021-10-28 22:49:43,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-28 22:49:43,629 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:49:43,630 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-28 22:49:43,631 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:49:43,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:49:43,638 INFO L85 PathProgramCache]: Analyzing trace with hash 890922791, now seen corresponding path program 1 times [2021-10-28 22:49:43,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:49:43,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [783454806] [2021-10-28 22:49:43,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:49:43,685 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:49:43,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:49:43,704 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:49:43,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 22:49:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:49:43,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 22:49:43,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:49:43,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:43,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:49:44,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:44,044 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:49:44,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [783454806] [2021-10-28 22:49:44,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [783454806] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:49:44,046 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:49:44,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 22:49:44,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181478826] [2021-10-28 22:49:44,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 22:49:44,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:49:44,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 22:49:44,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 22:49:44,076 INFO L87 Difference]: Start difference. First operand has 32 states, 25 states have (on average 1.6) internal successors, (40), 31 states have internal predecessors, (40), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-10-28 22:49:44,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:49:44,098 INFO L93 Difference]: Finished difference Result 62 states and 78 transitions. [2021-10-28 22:49:44,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 22:49:44,100 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-10-28 22:49:44,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:49:44,112 INFO L225 Difference]: With dead ends: 62 [2021-10-28 22:49:44,112 INFO L226 Difference]: Without dead ends: 28 [2021-10-28 22:49:44,116 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 22:49:44,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-28 22:49:44,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-10-28 22:49:44,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 27 states have internal predecessors, (29), 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) [2021-10-28 22:49:44,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2021-10-28 22:49:44,152 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 6 [2021-10-28 22:49:44,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:49:44,153 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2021-10-28 22:49:44,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-10-28 22:49:44,154 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2021-10-28 22:49:44,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-28 22:49:44,154 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:49:44,155 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-28 22:49:44,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 22:49:44,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:49:44,371 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:49:44,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:49:44,372 INFO L85 PathProgramCache]: Analyzing trace with hash 889571274, now seen corresponding path program 1 times [2021-10-28 22:49:44,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:49:44,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2144685717] [2021-10-28 22:49:44,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:49:44,374 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:49:44,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:49:44,376 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:49:44,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 22:49:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:49:44,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 22:49:44,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:49:44,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:44,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:49:52,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:52,356 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:49:52,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2144685717] [2021-10-28 22:49:52,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2144685717] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:49:52,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:49:52,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-28 22:49:52,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753695576] [2021-10-28 22:49:52,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 22:49:52,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:49:52,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 22:49:52,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-28 22:49:52,360 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) [2021-10-28 22:50:15,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:50:15,294 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2021-10-28 22:50:15,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 22:50:15,295 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) Word has length 6 [2021-10-28 22:50:15,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:50:15,296 INFO L225 Difference]: With dead ends: 43 [2021-10-28 22:50:15,296 INFO L226 Difference]: Without dead ends: 39 [2021-10-28 22:50:15,297 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-28 22:50:15,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-28 22:50:15,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33. [2021-10-28 22:50:15,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 32 states have internal predecessors, (35), 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) [2021-10-28 22:50:15,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2021-10-28 22:50:15,304 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 6 [2021-10-28 22:50:15,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:50:15,305 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2021-10-28 22:50:15,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) [2021-10-28 22:50:15,305 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2021-10-28 22:50:15,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-28 22:50:15,306 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:50:15,306 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:50:15,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-28 22:50:15,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:50:15,521 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:50:15,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:15,522 INFO L85 PathProgramCache]: Analyzing trace with hash 179657965, now seen corresponding path program 1 times [2021-10-28 22:50:15,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:50:15,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915760452] [2021-10-28 22:50:15,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:15,523 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:50:15,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:50:15,526 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:50:15,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 22:50:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:16,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 22:50:16,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:18,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:50:18,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:50:25,065 WARN L838 $PredicateComparison]: unable to prove that (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) is different from false [2021-10-28 22:50:27,113 WARN L860 $PredicateComparison]: unable to prove that (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) is different from true [2021-10-28 22:50:46,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:50:46,844 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:50:46,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [915760452] [2021-10-28 22:50:46,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [915760452] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:50:46,845 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:50:46,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-10-28 22:50:46,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713724983] [2021-10-28 22:50:46,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 22:50:46,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:50:46,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 22:50:46,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=30, Unknown=2, NotChecked=10, Total=56 [2021-10-28 22:50:46,848 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 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) [2021-10-28 22:50:55,319 WARN L207 SmtUtils]: Spent 5.10 s on a formula simplification that was a NOOP. DAG size: 14 [2021-10-28 22:51:00,910 WARN L860 $PredicateComparison]: unable to prove that (and (= c_ULTIMATE.start_main_~r~0 (_ bv1 32)) (= c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~x~0) (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) (= c_currentRoundingMode roundNearestTiesToEven) (forall ((v_ULTIMATE.start_main_~a~0_11 (_ FloatingPoint 11 53))) (= ((_ fp.to_sbv 32) roundTowardZero (let ((.cse1 (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)) v_ULTIMATE.start_main_~a~0_11))) (fp.sub c_currentRoundingMode .cse1 .cse1))) (_ bv0 32)))) is different from true [2021-10-28 22:51:03,826 WARN L860 $PredicateComparison]: unable to prove that (and (= c_ULTIMATE.start_main_~r~0 (_ bv1 32)) (= c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~x~0) (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-10-28 22:51:56,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:56,950 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2021-10-28 22:51:56,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 22:51:56,951 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 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) Word has length 8 [2021-10-28 22:51:56,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:51:56,952 INFO L225 Difference]: With dead ends: 36 [2021-10-28 22:51:56,952 INFO L226 Difference]: Without dead ends: 33 [2021-10-28 22:51:56,954 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 26.2s TimeCoverageRelationStatistics Valid=26, Invalid=54, Unknown=4, NotChecked=48, Total=132 [2021-10-28 22:51:56,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-28 22:51:56,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2021-10-28 22:51:56,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 30 states have internal predecessors, (33), 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) [2021-10-28 22:51:56,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2021-10-28 22:51:56,960 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 8 [2021-10-28 22:51:56,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:51:56,961 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2021-10-28 22:51:56,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 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) [2021-10-28 22:51:56,961 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2021-10-28 22:51:56,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 22:51:56,961 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:51:56,962 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:56,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-28 22:51:57,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:51:57,163 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:51:57,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:57,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1248817364, now seen corresponding path program 1 times [2021-10-28 22:51:57,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:51:57,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084518600] [2021-10-28 22:51:57,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:57,164 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:51:57,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:51:57,166 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:51:57,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 22:51:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:57,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 22:51:57,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:51:57,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:57,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:51:57,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:57,888 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:51:57,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084518600] [2021-10-28 22:51:57,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084518600] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:57,889 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:57,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-28 22:51:57,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862647733] [2021-10-28 22:51:57,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 22:51:57,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:51:57,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 22:51:57,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 22:51:57,891 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 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) [2021-10-28 22:51:59,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:59,502 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2021-10-28 22:51:59,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 22:51:59,503 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 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 9 [2021-10-28 22:51:59,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:51:59,505 INFO L225 Difference]: With dead ends: 64 [2021-10-28 22:51:59,505 INFO L226 Difference]: Without dead ends: 50 [2021-10-28 22:51:59,506 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-28 22:51:59,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-28 22:51:59,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 36. [2021-10-28 22:51:59,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 35 states have internal predecessors, (39), 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) [2021-10-28 22:51:59,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2021-10-28 22:51:59,515 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 9 [2021-10-28 22:51:59,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:51:59,516 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2021-10-28 22:51:59,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 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) [2021-10-28 22:51:59,516 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2021-10-28 22:51:59,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 22:51:59,517 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:51:59,517 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:59,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:59,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:51:59,730 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:51:59,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:59,731 INFO L85 PathProgramCache]: Analyzing trace with hash 852768432, now seen corresponding path program 1 times [2021-10-28 22:51:59,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:51:59,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071090771] [2021-10-28 22:51:59,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:59,732 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:51:59,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:51:59,738 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:51:59,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 22:52:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:52:01,257 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:52:03,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:52:03,444 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 22:52:03,444 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 22:52:03,445 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:52:03,447 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:52:03,447 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:52:03,448 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:52:03,448 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:52:03,448 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:52:03,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 22:52:03,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:52:03,651 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-10-28 22:52:03,654 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 22:52:03,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:52:03 BoogieIcfgContainer [2021-10-28 22:52:03,682 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 22:52:03,683 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:52:03,683 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:52:03,683 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:52:03,684 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:49:43" (3/4) ... [2021-10-28 22:52:03,687 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 22:52:03,754 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 22:52:03,754 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:52:03,756 INFO L168 Benchmark]: Toolchain (without parser) took 153510.90 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 37.2 MB in the beginning and 34.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. [2021-10-28 22:52:03,756 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 58.7 MB. Free memory is still 39.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:52:03,763 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.85 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 37.1 MB in the beginning and 61.3 MB in the end (delta: -24.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:52:03,764 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.35 ms. Allocated memory is still 77.6 MB. Free memory was 61.3 MB in the beginning and 59.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:52:03,764 INFO L168 Benchmark]: Boogie Preprocessor took 84.56 ms. Allocated memory is still 77.6 MB. Free memory was 59.8 MB in the beginning and 58.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:52:03,765 INFO L168 Benchmark]: RCFGBuilder took 12743.91 ms. Allocated memory is still 77.6 MB. Free memory was 58.2 MB in the beginning and 46.9 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 22:52:03,769 INFO L168 Benchmark]: TraceAbstraction took 140174.07 ms. Allocated memory is still 77.6 MB. Free memory was 46.4 MB in the beginning and 36.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 22:52:03,769 INFO L168 Benchmark]: Witness Printer took 71.40 ms. Allocated memory is still 77.6 MB. Free memory was 36.1 MB in the beginning and 34.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:52:03,772 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 58.7 MB. Free memory is still 39.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 373.85 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 37.1 MB in the beginning and 61.3 MB in the end (delta: -24.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.35 ms. Allocated memory is still 77.6 MB. Free memory was 61.3 MB in the beginning and 59.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 84.56 ms. Allocated memory is still 77.6 MB. Free memory was 59.8 MB in the beginning and 58.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 12743.91 ms. Allocated memory is still 77.6 MB. Free memory was 58.2 MB in the beginning and 46.9 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 140174.07 ms. Allocated memory is still 77.6 MB. Free memory was 46.4 MB in the beginning and 36.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 71.40 ms. Allocated memory is still 77.6 MB. Free memory was 36.1 MB in the beginning and 34.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L24] int counter = 0; VAL [counter=0] [L26] int r; [L27] double a, x, s; [L28] a = __VERIFIER_nondet_double() [L29] x = a [L30] s = 3.25 [L31] r = 1 VAL [counter=0] [L33] EXPR counter++ VAL [counter=1] [L33] COND TRUE counter++<100 [L17] COND FALSE !(!(cond)) VAL [counter=1] [L17] COND FALSE !(!(cond)) VAL [counter=1] [L17] COND TRUE !(cond) VAL [counter=1] [L19] reach_error() VAL [counter=1] - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 140.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 94.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 103 SDtfs, 74 SDslu, 168 SDs, 0 SdLazy, 111 SolverSat, 24 SolverUnsat, 26 SolverUnknown, 0 SolverNotchecked, 77.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 32.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 22 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 38.2s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 50 ConstructedInterpolants, 1 QuantifiedInterpolants, 320 SizeOfPredicates, 10 NumberOfNonLiveVariables, 140 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-28 22:52:03,986 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-28 22:52:04,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2e9077b-ec8b-447b-9755-890b03f8a3e6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...