./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS --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 b1c73403384a361e15608c077b8e86297621fa69c42f15894e841079f64af74a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 02:29:17,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:29:17,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:29:17,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:29:17,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:29:17,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:29:17,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:29:17,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:29:17,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:29:17,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:29:17,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:29:17,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:29:17,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:29:17,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:29:18,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:29:18,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:29:18,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:29:18,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:29:18,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:29:18,009 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:29:18,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:29:18,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:29:18,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:29:18,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:29:18,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:29:18,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:29:18,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:29:18,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:29:18,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:29:18,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:29:18,026 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:29:18,028 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:29:18,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:29:18,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:29:18,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:29:18,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:29:18,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:29:18,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:29:18,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:29:18,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:29:18,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:29:18,045 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-23 02:29:18,079 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:29:18,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:29:18,080 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:29:18,080 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:29:18,081 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:29:18,081 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:29:18,082 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:29:18,082 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:29:18,082 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:29:18,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:29:18,083 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:29:18,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:29:18,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:29:18,084 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:29:18,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:29:18,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:29:18,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:29:18,085 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:29:18,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:29:18,085 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:29:18,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:29:18,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:29:18,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:29:18,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:29:18,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:29:18,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:29:18,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:29:18,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:29:18,088 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:29:18,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:29:18,088 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:29:18,088 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:29:18,089 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:29:18,089 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:29:18,089 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1c73403384a361e15608c077b8e86297621fa69c42f15894e841079f64af74a [2022-11-23 02:29:18,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:29:18,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:29:18,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:29:18,486 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:29:18,486 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:29:18,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i [2022-11-23 02:29:21,625 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:29:21,834 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:29:21,834 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i [2022-11-23 02:29:21,841 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/data/332a1793f/48ed4bd1112e499f8279311c208abf42/FLAGfe4ff1259 [2022-11-23 02:29:21,857 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/data/332a1793f/48ed4bd1112e499f8279311c208abf42 [2022-11-23 02:29:21,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:29:21,861 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:29:21,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:29:21,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:29:21,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:29:21,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:29:21" (1/1) ... [2022-11-23 02:29:21,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f70ad16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:21, skipping insertion in model container [2022-11-23 02:29:21,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:29:21" (1/1) ... [2022-11-23 02:29:21,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:29:21,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:29:22,065 WARN L237 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_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i[825,838] [2022-11-23 02:29:22,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:29:22,093 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:29:22,106 WARN L237 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_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i[825,838] [2022-11-23 02:29:22,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:29:22,127 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:29:22,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:22 WrapperNode [2022-11-23 02:29:22,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:29:22,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:29:22,129 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:29:22,129 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:29:22,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:22" (1/1) ... [2022-11-23 02:29:22,144 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:22" (1/1) ... [2022-11-23 02:29:22,163 INFO L138 Inliner]: procedures = 16, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 43 [2022-11-23 02:29:22,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:29:22,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:29:22,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:29:22,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:29:22,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:22" (1/1) ... [2022-11-23 02:29:22,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:22" (1/1) ... [2022-11-23 02:29:22,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:22" (1/1) ... [2022-11-23 02:29:22,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:22" (1/1) ... [2022-11-23 02:29:22,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:22" (1/1) ... [2022-11-23 02:29:22,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:22" (1/1) ... [2022-11-23 02:29:22,187 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:22" (1/1) ... [2022-11-23 02:29:22,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:22" (1/1) ... [2022-11-23 02:29:22,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:29:22,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:29:22,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:29:22,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:29:22,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:22" (1/1) ... [2022-11-23 02:29:22,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:29:22,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:29:22,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:29:22,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:29:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:29:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:29:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 02:29:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 02:29:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:29:22,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:29:22,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 02:29:22,397 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:29:22,399 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:29:22,544 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:29:22,552 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:29:22,553 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 02:29:22,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:29:22 BoogieIcfgContainer [2022-11-23 02:29:22,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:29:22,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:29:22,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:29:22,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:29:22,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:29:21" (1/3) ... [2022-11-23 02:29:22,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24fa1965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:29:22, skipping insertion in model container [2022-11-23 02:29:22,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:22" (2/3) ... [2022-11-23 02:29:22,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24fa1965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:29:22, skipping insertion in model container [2022-11-23 02:29:22,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:29:22" (3/3) ... [2022-11-23 02:29:22,565 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc_loop.i [2022-11-23 02:29:22,587 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:29:22,588 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 02:29:22,640 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:29:22,647 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@25e6872a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:29:22,647 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 02:29:22,651 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:29:22,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 02:29:22,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:29:22,659 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 02:29:22,659 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:29:22,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:29:22,665 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-23 02:29:22,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:29:22,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610288889] [2022-11-23 02:29:22,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:29:22,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:29:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:29:23,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:29:23,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:29:23,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610288889] [2022-11-23 02:29:23,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610288889] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:29:23,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:29:23,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 02:29:23,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479194623] [2022-11-23 02:29:23,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:29:23,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 02:29:23,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:29:23,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:29:23,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:29:23,203 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-23 02:29:23,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:29:23,326 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2022-11-23 02:29:23,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 02:29:23,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2022-11-23 02:29:23,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:29:23,358 INFO L225 Difference]: With dead ends: 33 [2022-11-23 02:29:23,358 INFO L226 Difference]: Without dead ends: 12 [2022-11-23 02:29:23,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 02:29:23,365 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 18 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 02:29:23,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 28 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 02:29:23,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-23 02:29:23,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2022-11-23 02:29:23,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:29:23,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-11-23 02:29:23,401 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2022-11-23 02:29:23,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:29:23,402 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-11-23 02:29:23,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-23 02:29:23,402 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-11-23 02:29:23,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 02:29:23,403 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:29:23,403 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:29:23,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 02:29:23,404 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:29:23,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:29:23,405 INFO L85 PathProgramCache]: Analyzing trace with hash -185344033, now seen corresponding path program 1 times [2022-11-23 02:29:23,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:29:23,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134921001] [2022-11-23 02:29:23,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:29:23,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:29:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:29:23,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:29:23,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:29:23,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134921001] [2022-11-23 02:29:23,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134921001] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 02:29:23,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792501128] [2022-11-23 02:29:23,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:29:23,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:29:23,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:29:23,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:29:23,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 02:29:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:29:23,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-23 02:29:23,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:29:23,853 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:29:23,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 02:29:23,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:29:23,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792501128] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 02:29:23,945 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 02:29:23,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2022-11-23 02:29:23,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85281331] [2022-11-23 02:29:23,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 02:29:23,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 02:29:23,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:29:23,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 02:29:23,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 02:29:23,949 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2022-11-23 02:29:24,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:29:24,003 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-23 02:29:24,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 02:29:24,004 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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 9 [2022-11-23 02:29:24,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:29:24,005 INFO L225 Difference]: With dead ends: 19 [2022-11-23 02:29:24,006 INFO L226 Difference]: Without dead ends: 17 [2022-11-23 02:29:24,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-23 02:29:24,008 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 02:29:24,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 15 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 02:29:24,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-23 02:29:24,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2022-11-23 02:29:24,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 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) [2022-11-23 02:29:24,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-11-23 02:29:24,014 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 9 [2022-11-23 02:29:24,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:29:24,015 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-11-23 02:29:24,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2022-11-23 02:29:24,015 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-11-23 02:29:24,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 02:29:24,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:29:24,016 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2022-11-23 02:29:24,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 02:29:24,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:29:24,223 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:29:24,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:29:24,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1625670603, now seen corresponding path program 2 times [2022-11-23 02:29:24,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:29:24,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758475671] [2022-11-23 02:29:24,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:29:24,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:29:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:29:24,553 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 02:29:24,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:29:24,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758475671] [2022-11-23 02:29:24,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758475671] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 02:29:24,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269976692] [2022-11-23 02:29:24,554 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 02:29:24,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:29:24,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:29:24,562 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:29:24,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 02:29:24,634 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 02:29:24,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 02:29:24,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-23 02:29:24,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:29:24,779 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 02:29:24,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 02:29:24,892 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 02:29:24,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269976692] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 02:29:24,893 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 02:29:24,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-11-23 02:29:24,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653596364] [2022-11-23 02:29:24,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 02:29:24,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 02:29:24,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:29:24,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 02:29:24,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 02:29:24,898 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-11-23 02:29:24,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:29:24,935 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-11-23 02:29:24,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 02:29:24,936 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 13 [2022-11-23 02:29:24,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:29:24,937 INFO L225 Difference]: With dead ends: 14 [2022-11-23 02:29:24,937 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 02:29:24,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-23 02:29:24,942 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 02:29:24,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 02:29:24,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 02:29:24,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 02:29:24,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:29:24,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 02:29:24,948 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-11-23 02:29:24,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:29:24,948 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 02:29:24,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-11-23 02:29:24,950 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 02:29:24,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 02:29:24,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 02:29:24,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 02:29:25,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:29:25,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 02:29:25,276 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 02:29:25,276 INFO L899 garLoopResultBuilder]: For program point L29-2(lines 29 33) no Hoare annotation was computed. [2022-11-23 02:29:25,277 INFO L895 garLoopResultBuilder]: At program point L29-3(lines 29 33) the Hoare annotation is: (let ((.cse0 (= ~tmp~0.base |ULTIMATE.start_glob2_~pathlim#1.base|)) (.cse1 (= ~tmp~0.base |ULTIMATE.start_glob2_~p~0#1.base|)) (.cse2 (<= |ULTIMATE.start_glob2_~pathlim#1.offset| ~tmp~0.offset))) (or (and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) .cse0 .cse1 .cse2) (and (<= (+ |ULTIMATE.start_glob2_~p~0#1.offset| 4) ~tmp~0.offset) .cse0 .cse1 .cse2))) [2022-11-23 02:29:25,277 INFO L899 garLoopResultBuilder]: For program point L29-4(lines 29 33) no Hoare annotation was computed. [2022-11-23 02:29:25,282 INFO L895 garLoopResultBuilder]: At program point L48(lines 38 49) the Hoare annotation is: (or (and (<= (+ |ULTIMATE.start_glob2_~p~0#1.offset| 4) ~tmp~0.offset) (= ~tmp~0.base |ULTIMATE.start_glob2_~p~0#1.base|)) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0))) [2022-11-23 02:29:25,282 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2022-11-23 02:29:25,282 INFO L895 garLoopResultBuilder]: At program point L15-2(lines 14 19) the Hoare annotation is: (and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (= ~tmp~0.base |ULTIMATE.start_glob2_~pathlim#1.base|) (= ~tmp~0.base |ULTIMATE.start_glob2_~p~0#1.base|) (<= |ULTIMATE.start_glob2_~pathlim#1.offset| ~tmp~0.offset)) [2022-11-23 02:29:25,283 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-23 02:29:25,283 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 02:29:25,283 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-23 02:29:25,283 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2022-11-23 02:29:25,283 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2022-11-23 02:29:25,286 INFO L895 garLoopResultBuilder]: At program point L35(lines 25 36) the Hoare annotation is: (or (and (<= (+ |ULTIMATE.start_glob2_~p~0#1.offset| 4) ~tmp~0.offset) (= ~tmp~0.base |ULTIMATE.start_glob2_~p~0#1.base|)) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0))) [2022-11-23 02:29:25,293 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1] [2022-11-23 02:29:25,295 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 02:29:25,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:29:25 BoogieIcfgContainer [2022-11-23 02:29:25,321 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 02:29:25,322 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:29:25,323 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:29:25,323 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:29:25,323 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:29:22" (3/4) ... [2022-11-23 02:29:25,327 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 02:29:25,338 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-23 02:29:25,338 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-23 02:29:25,338 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 02:29:25,338 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 02:29:25,396 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 02:29:25,397 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:29:25,397 INFO L158 Benchmark]: Toolchain (without parser) took 3536.45ms. Allocated memory was 140.5MB in the beginning and 195.0MB in the end (delta: 54.5MB). Free memory was 89.6MB in the beginning and 95.9MB in the end (delta: -6.3MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. [2022-11-23 02:29:25,398 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 140.5MB. Free memory was 100.8MB in the beginning and 100.8MB in the end (delta: 31.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:29:25,399 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.98ms. Allocated memory is still 140.5MB. Free memory was 89.6MB in the beginning and 79.3MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 02:29:25,400 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.49ms. Allocated memory is still 140.5MB. Free memory was 79.3MB in the beginning and 77.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:29:25,400 INFO L158 Benchmark]: Boogie Preprocessor took 26.30ms. Allocated memory is still 140.5MB. Free memory was 77.6MB in the beginning and 76.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:29:25,401 INFO L158 Benchmark]: RCFGBuilder took 364.73ms. Allocated memory was 140.5MB in the beginning and 195.0MB in the end (delta: 54.5MB). Free memory was 76.4MB in the beginning and 159.7MB in the end (delta: -83.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 02:29:25,401 INFO L158 Benchmark]: TraceAbstraction took 2763.05ms. Allocated memory is still 195.0MB. Free memory was 158.8MB in the beginning and 98.0MB in the end (delta: 60.8MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. [2022-11-23 02:29:25,402 INFO L158 Benchmark]: Witness Printer took 75.08ms. Allocated memory is still 195.0MB. Free memory was 98.0MB in the beginning and 95.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:29:25,405 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 140.5MB. Free memory was 100.8MB in the beginning and 100.8MB in the end (delta: 31.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 264.98ms. Allocated memory is still 140.5MB. Free memory was 89.6MB in the beginning and 79.3MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.49ms. Allocated memory is still 140.5MB. Free memory was 79.3MB in the beginning and 77.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.30ms. Allocated memory is still 140.5MB. Free memory was 77.6MB in the beginning and 76.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 364.73ms. Allocated memory was 140.5MB in the beginning and 195.0MB in the end (delta: 54.5MB). Free memory was 76.4MB in the beginning and 159.7MB in the end (delta: -83.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2763.05ms. Allocated memory is still 195.0MB. Free memory was 158.8MB in the beginning and 98.0MB in the end (delta: 60.8MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. * Witness Printer took 75.08ms. Allocated memory is still 195.0MB. Free memory was 98.0MB in the beginning and 95.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 20 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=2, InterpolantAutomatonStates: 16, 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, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 13 NumberOfFragments, 70 HoareAnnotationTreeSize, 4 FomulaSimplifications, 87 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 35 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 367 SizeOfPredicates, 26 NumberOfNonLiveVariables, 166 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 18/30 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((cond == 1 && tmp == pathlim) && tmp == p) && pathlim <= tmp) || (((p + 4 <= tmp && tmp == pathlim) && tmp == p) && pathlim <= tmp) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((cond == 1 && tmp == pathlim) && tmp == p) && pathlim <= tmp - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (p + 4 <= tmp && tmp == p) || !(cond == 0) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (p + 4 <= tmp && tmp == p) || !(cond == 0) RESULT: Ultimate proved your program to be correct! [2022-11-23 02:29:25,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60fbb78b-df93-4b94-ae60-d1f7f4dc8e9d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE