./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/diamond_2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-acceleration/diamond_2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/bin/uautomizer-uyxdKDjOR8 --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 5b285e679a61ee5ec3c0d899a4a7682d4249c0885f5b4a5875891b312f202de4 --- 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-2329fc7 [2022-12-13 19:28:11,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:28:11,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:28:12,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:28:12,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:28:12,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:28:12,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:28:12,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:28:12,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:28:12,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:28:12,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:28:12,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:28:12,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:28:12,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:28:12,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:28:12,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:28:12,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:28:12,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:28:12,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:28:12,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:28:12,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:28:12,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:28:12,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:28:12,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:28:12,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:28:12,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:28:12,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:28:12,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:28:12,025 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:28:12,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:28:12,026 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:28:12,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:28:12,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:28:12,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:28:12,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:28:12,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:28:12,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:28:12,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:28:12,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:28:12,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:28:12,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:28:12,031 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 19:28:12,043 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:28:12,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:28:12,044 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:28:12,044 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:28:12,044 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:28:12,044 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:28:12,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:28:12,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:28:12,045 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:28:12,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:28:12,045 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:28:12,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:28:12,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:28:12,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:28:12,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:28:12,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:28:12,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:28:12,046 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:28:12,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:28:12,046 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:28:12,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:28:12,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:28:12,046 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:28:12,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:28:12,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:28:12,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:28:12,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:28:12,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:28:12,047 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:28:12,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:28:12,047 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:28:12,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:28:12,047 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:28:12,047 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:28:12,047 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:28:12,047 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_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b285e679a61ee5ec3c0d899a4a7682d4249c0885f5b4a5875891b312f202de4 [2022-12-13 19:28:12,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:28:12,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:28:12,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:28:12,246 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:28:12,247 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:28:12,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/loop-acceleration/diamond_2-2.c [2022-12-13 19:28:14,806 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:28:14,956 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:28:14,957 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/sv-benchmarks/c/loop-acceleration/diamond_2-2.c [2022-12-13 19:28:14,961 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/bin/uautomizer-uyxdKDjOR8/data/e4780c364/acd7c61c0d364ad9a65ca1e299c11449/FLAG81422a588 [2022-12-13 19:28:14,973 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/bin/uautomizer-uyxdKDjOR8/data/e4780c364/acd7c61c0d364ad9a65ca1e299c11449 [2022-12-13 19:28:14,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:28:14,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:28:14,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:28:14,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:28:14,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:28:14,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:28:14" (1/1) ... [2022-12-13 19:28:14,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7376b412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:14, skipping insertion in model container [2022-12-13 19:28:14,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:28:14" (1/1) ... [2022-12-13 19:28:14,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:28:15,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:28:15,130 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_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/sv-benchmarks/c/loop-acceleration/diamond_2-2.c[373,386] [2022-12-13 19:28:15,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:28:15,155 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:28:15,164 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_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/sv-benchmarks/c/loop-acceleration/diamond_2-2.c[373,386] [2022-12-13 19:28:15,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:28:15,183 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:28:15,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:15 WrapperNode [2022-12-13 19:28:15,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:28:15,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:28:15,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:28:15,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:28:15,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:15" (1/1) ... [2022-12-13 19:28:15,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:15" (1/1) ... [2022-12-13 19:28:15,212 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2022-12-13 19:28:15,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:28:15,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:28:15,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:28:15,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:28:15,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:15" (1/1) ... [2022-12-13 19:28:15,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:15" (1/1) ... [2022-12-13 19:28:15,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:15" (1/1) ... [2022-12-13 19:28:15,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:15" (1/1) ... [2022-12-13 19:28:15,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:15" (1/1) ... [2022-12-13 19:28:15,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:15" (1/1) ... [2022-12-13 19:28:15,228 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:15" (1/1) ... [2022-12-13 19:28:15,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:15" (1/1) ... [2022-12-13 19:28:15,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:28:15,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:28:15,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:28:15,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:28:15,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:15" (1/1) ... [2022-12-13 19:28:15,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:28:15,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:28:15,256 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:28:15,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:28:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:28:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:28:15,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:28:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 19:28:15,354 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:28:15,356 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:28:15,516 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:28:15,522 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:28:15,523 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 19:28:15,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:28:15 BoogieIcfgContainer [2022-12-13 19:28:15,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:28:15,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:28:15,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:28:15,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:28:15,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:28:14" (1/3) ... [2022-12-13 19:28:15,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f357350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:28:15, skipping insertion in model container [2022-12-13 19:28:15,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:15" (2/3) ... [2022-12-13 19:28:15,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f357350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:28:15, skipping insertion in model container [2022-12-13 19:28:15,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:28:15" (3/3) ... [2022-12-13 19:28:15,534 INFO L112 eAbstractionObserver]: Analyzing ICFG diamond_2-2.c [2022-12-13 19:28:15,555 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:28:15,555 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 19:28:15,602 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:28:15,609 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;@6f60054b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:28:15,610 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 19:28:15,614 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.736842105263158) internal successors, (33), 20 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) [2022-12-13 19:28:15,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-13 19:28:15,620 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:28:15,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 19:28:15,622 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:28:15,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:28:15,627 INFO L85 PathProgramCache]: Analyzing trace with hash 889693415, now seen corresponding path program 1 times [2022-12-13 19:28:15,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:28:15,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983068625] [2022-12-13 19:28:15,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:28:15,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:28:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:28:15,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:28:15,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:28:15,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983068625] [2022-12-13 19:28:15,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983068625] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:28:15,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:28:15,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:28:15,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257813367] [2022-12-13 19:28:15,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:28:15,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:28:15,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:28:15,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:28:15,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:28:15,886 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.736842105263158) internal successors, (33), 20 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) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2022-12-13 19:28:15,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:28:15,940 INFO L93 Difference]: Finished difference Result 31 states and 46 transitions. [2022-12-13 19:28:15,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:28:15,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 [2022-12-13 19:28:15,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:28:15,951 INFO L225 Difference]: With dead ends: 31 [2022-12-13 19:28:15,951 INFO L226 Difference]: Without dead ends: 19 [2022-12-13 19:28:15,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:28:15,964 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:28:15,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 35 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:28:15,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-13 19:28:15,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2022-12-13 19:28:15,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 17 states have internal predecessors, (28), 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) [2022-12-13 19:28:15,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 28 transitions. [2022-12-13 19:28:15,996 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 28 transitions. Word has length 6 [2022-12-13 19:28:15,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:28:15,996 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 28 transitions. [2022-12-13 19:28:15,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2022-12-13 19:28:15,997 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2022-12-13 19:28:15,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 19:28:15,997 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:28:15,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:28:15,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 19:28:15,998 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:28:15,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:28:15,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1797740634, now seen corresponding path program 1 times [2022-12-13 19:28:15,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:28:15,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446363889] [2022-12-13 19:28:15,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:28:15,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:28:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:28:16,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:28:16,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:28:16,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446363889] [2022-12-13 19:28:16,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446363889] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:28:16,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:28:16,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:28:16,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145318314] [2022-12-13 19:28:16,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:28:16,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:28:16,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:28:16,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:28:16,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:28:16,051 INFO L87 Difference]: Start difference. First operand 18 states and 28 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) [2022-12-13 19:28:16,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:28:16,137 INFO L93 Difference]: Finished difference Result 48 states and 78 transitions. [2022-12-13 19:28:16,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:28:16,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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 17 [2022-12-13 19:28:16,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:28:16,139 INFO L225 Difference]: With dead ends: 48 [2022-12-13 19:28:16,139 INFO L226 Difference]: Without dead ends: 33 [2022-12-13 19:28:16,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:28:16,140 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 14 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:28:16,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 23 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:28:16,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-12-13 19:28:16,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2022-12-13 19:28:16,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 28 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) [2022-12-13 19:28:16,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2022-12-13 19:28:16,145 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 17 [2022-12-13 19:28:16,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:28:16,145 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2022-12-13 19:28:16,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) [2022-12-13 19:28:16,146 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2022-12-13 19:28:16,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 19:28:16,146 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:28:16,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:28:16,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 19:28:16,147 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:28:16,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:28:16,147 INFO L85 PathProgramCache]: Analyzing trace with hash -170777494, now seen corresponding path program 1 times [2022-12-13 19:28:16,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:28:16,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197033205] [2022-12-13 19:28:16,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:28:16,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:28:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:28:16,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:28:16,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:28:16,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197033205] [2022-12-13 19:28:16,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197033205] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:28:16,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469157576] [2022-12-13 19:28:16,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:28:16,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:28:16,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:28:16,758 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:28:16,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 19:28:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:28:16,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-13 19:28:16,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:28:17,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:28:17,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:28:17,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:28:17,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469157576] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:28:17,594 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:28:17,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 6] total 14 [2022-12-13 19:28:17,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622729874] [2022-12-13 19:28:17,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:28:17,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 19:28:17,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:28:17,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 19:28:17,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-12-13 19:28:17,596 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 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) [2022-12-13 19:28:18,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:28:18,167 INFO L93 Difference]: Finished difference Result 44 states and 57 transitions. [2022-12-13 19:28:18,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 19:28:18,167 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 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 17 [2022-12-13 19:28:18,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:28:18,168 INFO L225 Difference]: With dead ends: 44 [2022-12-13 19:28:18,168 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 19:28:18,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2022-12-13 19:28:18,169 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 19:28:18,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 12 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 19:28:18,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 19:28:18,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 19:28:18,170 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) [2022-12-13 19:28:18,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 19:28:18,170 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-12-13 19:28:18,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:28:18,171 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 19:28:18,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 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) [2022-12-13 19:28:18,171 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 19:28:18,171 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 19:28:18,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 19:28:18,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 19:28:18,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:28:18,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 19:28:18,516 INFO L899 garLoopResultBuilder]: For program point L27-1(lines 17 47) no Hoare annotation was computed. [2022-12-13 19:28:18,516 INFO L899 garLoopResultBuilder]: For program point L7(lines 7 9) no Hoare annotation was computed. [2022-12-13 19:28:18,517 INFO L902 garLoopResultBuilder]: At program point L7-2(lines 6 11) the Hoare annotation is: true [2022-12-13 19:28:18,517 INFO L899 garLoopResultBuilder]: For program point L36-1(lines 17 47) no Hoare annotation was computed. [2022-12-13 19:28:18,517 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 19:28:18,517 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 19:28:18,517 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2022-12-13 19:28:18,517 INFO L899 garLoopResultBuilder]: For program point L24-1(lines 17 47) no Hoare annotation was computed. [2022-12-13 19:28:18,517 INFO L895 garLoopResultBuilder]: At program point L45-1(lines 17 47) the Hoare annotation is: (let ((.cse5 (div |ULTIMATE.start_main_~y~0#1| 2))) (let ((.cse1 (* (div (+ (* (- 2) .cse5) |ULTIMATE.start_main_~y~0#1|) 4294967296) 4294967296)) (.cse2 (* 2 .cse5))) (or (and (<= (let ((.cse0 (div |ULTIMATE.start_main_~x~0#1| 2))) (+ (* (div (+ |ULTIMATE.start_main_~x~0#1| (* (- 2) .cse0)) 4294967296) 4294967296) |ULTIMATE.start_main_~y~0#1| (* .cse0 2))) (+ .cse1 |ULTIMATE.start_main_~x~0#1| .cse2)) (< (let ((.cse4 (div (+ |ULTIMATE.start_main_~x~0#1| 1) 2))) (let ((.cse3 (* .cse4 2))) (+ (* (div (+ (- 1) (- |ULTIMATE.start_main_~x~0#1|) .cse3) 4294967296) 4294967296) .cse3 (* 8589934592 (div (+ (* (- 2) .cse4) |ULTIMATE.start_main_~x~0#1| 1) 4294967296)) 4294967293))) |ULTIMATE.start_main_~x~0#1|)) (and (= (+ 5 |ULTIMATE.start_main_~x~0#1|) 0) (not (= (+ .cse1 .cse2) |ULTIMATE.start_main_~y~0#1|))) (= |ULTIMATE.start_main_~x~0#1| 0)))) [2022-12-13 19:28:18,517 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2022-12-13 19:28:18,517 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 19:28:18,518 INFO L899 garLoopResultBuilder]: For program point L33-1(lines 17 47) no Hoare annotation was computed. [2022-12-13 19:28:18,518 INFO L899 garLoopResultBuilder]: For program point L21-1(lines 17 47) no Hoare annotation was computed. [2022-12-13 19:28:18,518 INFO L899 garLoopResultBuilder]: For program point L17-2(lines 17 47) no Hoare annotation was computed. [2022-12-13 19:28:18,518 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 50) no Hoare annotation was computed. [2022-12-13 19:28:18,518 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 19:28:18,518 INFO L899 garLoopResultBuilder]: For program point L42-1(lines 17 47) no Hoare annotation was computed. [2022-12-13 19:28:18,518 INFO L899 garLoopResultBuilder]: For program point L30-1(lines 17 47) no Hoare annotation was computed. [2022-12-13 19:28:18,518 INFO L899 garLoopResultBuilder]: For program point L18(lines 18 19) no Hoare annotation was computed. [2022-12-13 19:28:18,518 INFO L899 garLoopResultBuilder]: For program point L18-2(lines 17 47) no Hoare annotation was computed. [2022-12-13 19:28:18,518 INFO L899 garLoopResultBuilder]: For program point L39-1(lines 17 47) no Hoare annotation was computed. [2022-12-13 19:28:18,521 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 19:28:18,522 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:28:18,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:28:18 BoogieIcfgContainer [2022-12-13 19:28:18,532 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:28:18,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:28:18,533 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:28:18,533 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:28:18,533 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:28:15" (3/4) ... [2022-12-13 19:28:18,535 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 19:28:18,542 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-13 19:28:18,542 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 19:28:18,542 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 19:28:18,543 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 19:28:18,567 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 19:28:18,567 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:28:18,568 INFO L158 Benchmark]: Toolchain (without parser) took 3591.38ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 100.8MB in the beginning and 52.8MB in the end (delta: 48.0MB). Peak memory consumption was 78.2MB. Max. memory is 16.1GB. [2022-12-13 19:28:18,568 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 132.1MB. Free memory is still 107.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:28:18,568 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.59ms. Allocated memory is still 132.1MB. Free memory was 100.8MB in the beginning and 90.1MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 19:28:18,568 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.22ms. Allocated memory is still 132.1MB. Free memory was 90.1MB in the beginning and 88.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:28:18,569 INFO L158 Benchmark]: Boogie Preprocessor took 17.19ms. Allocated memory is still 132.1MB. Free memory was 88.3MB in the beginning and 87.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:28:18,569 INFO L158 Benchmark]: RCFGBuilder took 293.97ms. Allocated memory is still 132.1MB. Free memory was 87.1MB in the beginning and 75.4MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 19:28:18,569 INFO L158 Benchmark]: TraceAbstraction took 3004.90ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 74.5MB in the beginning and 55.9MB in the end (delta: 18.6MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2022-12-13 19:28:18,569 INFO L158 Benchmark]: Witness Printer took 34.47ms. Allocated memory is still 159.4MB. Free memory was 55.9MB in the beginning and 52.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 19:28:18,571 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 132.1MB. Free memory is still 107.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 206.59ms. Allocated memory is still 132.1MB. Free memory was 100.8MB in the beginning and 90.1MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.22ms. Allocated memory is still 132.1MB. Free memory was 90.1MB in the beginning and 88.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.19ms. Allocated memory is still 132.1MB. Free memory was 88.3MB in the beginning and 87.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 293.97ms. Allocated memory is still 132.1MB. Free memory was 87.1MB in the beginning and 75.4MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3004.90ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 74.5MB in the beginning and 55.9MB in the end (delta: 18.6MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. * Witness Printer took 34.47ms. Allocated memory is still 159.4MB. Free memory was 55.9MB in the beginning and 52.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 8]: 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, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 70 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 246 IncrementalHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 48 mSDtfsCounter, 246 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=2, InterpolantAutomatonStates: 17, 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 109 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 9 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 1643 SizeOfPredicates, 4 NumberOfNonLiveVariables, 66 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 1/4 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: 6]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((x + -2 * (x / 2)) / 4294967296 * 4294967296 + y + x / 2 * 2 <= (-2 * (y / 2) + y) / 4294967296 * 4294967296 + x + 2 * (y / 2) && (-1 + -x + (x + 1) / 2 * 2) / 4294967296 * 4294967296 + (x + 1) / 2 * 2 + 8589934592 * ((-2 * ((x + 1) / 2) + x + 1) / 4294967296) + 4294967293 < x) || (5 + x == 0 && !((-2 * (y / 2) + y) / 4294967296 * 4294967296 + 2 * (y / 2) == y))) || x == 0 RESULT: Ultimate proved your program to be correct! [2022-12-13 19:28:18,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c06bd0-2c29-4b86-a2a2-43964f27c8fa/bin/uautomizer-uyxdKDjOR8/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