./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/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_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/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 64bit --witnessprinter.graph.data.programhash 0bbe822661921a086d2e8463a9fe627e3d2feec0733ded33ee82f90f38d03493 --- 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 21:21:05,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:21:05,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:21:05,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:21:05,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:21:05,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:21:05,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:21:05,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:21:05,931 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:21:05,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:21:05,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:21:05,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:21:05,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:21:05,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:21:05,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:21:05,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:21:05,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:21:05,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:21:05,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:21:05,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:21:05,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:21:05,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:21:05,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:21:05,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:21:05,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:21:05,944 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:21:05,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:21:05,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:21:05,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:21:05,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:21:05,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:21:05,946 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:21:05,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:21:05,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:21:05,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:21:05,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:21:05,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:21:05,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:21:05,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:21:05,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:21:05,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:21:05,951 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 21:21:05,964 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:21:05,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:21:05,965 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:21:05,965 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:21:05,965 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:21:05,965 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:21:05,966 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:21:05,966 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:21:05,966 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:21:05,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:21:05,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:21:05,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:21:05,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:21:05,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:21:05,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:21:05,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:21:05,974 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:21:05,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:21:05,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:21:05,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:21:05,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:21:05,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:21:05,975 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:21:05,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:21:05,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:21:05,976 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:21:05,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:21:05,976 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:21:05,976 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:21:05,976 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:21:05,977 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:21:05,977 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:21:05,977 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_a996d817-75d5-4d74-a12d-2970d212f667/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bbe822661921a086d2e8463a9fe627e3d2feec0733ded33ee82f90f38d03493 [2022-12-13 21:21:06,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:21:06,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:21:06,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:21:06,170 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:21:06,171 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:21:06,171 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c [2022-12-13 21:21:08,828 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:21:09,010 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:21:09,010 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c [2022-12-13 21:21:09,016 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/data/9bc8de324/d1e08f799203400186cba9b77dd7786d/FLAGc7b33c0f6 [2022-12-13 21:21:09,028 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/data/9bc8de324/d1e08f799203400186cba9b77dd7786d [2022-12-13 21:21:09,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:21:09,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:21:09,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:21:09,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:21:09,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:21:09,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:21:09" (1/1) ... [2022-12-13 21:21:09,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e0216a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:09, skipping insertion in model container [2022-12-13 21:21:09,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:21:09" (1/1) ... [2022-12-13 21:21:09,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:21:09,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:21:09,168 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_a996d817-75d5-4d74-a12d-2970d212f667/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c[1107,1120] [2022-12-13 21:21:09,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:21:09,220 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:21:09,229 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_a996d817-75d5-4d74-a12d-2970d212f667/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c[1107,1120] [2022-12-13 21:21:09,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:21:09,266 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:21:09,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:09 WrapperNode [2022-12-13 21:21:09,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:21:09,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:21:09,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:21:09,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:21:09,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:09" (1/1) ... [2022-12-13 21:21:09,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:09" (1/1) ... [2022-12-13 21:21:09,297 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 132 [2022-12-13 21:21:09,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:21:09,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:21:09,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:21:09,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:21:09,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:09" (1/1) ... [2022-12-13 21:21:09,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:09" (1/1) ... [2022-12-13 21:21:09,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:09" (1/1) ... [2022-12-13 21:21:09,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:09" (1/1) ... [2022-12-13 21:21:09,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:09" (1/1) ... [2022-12-13 21:21:09,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:09" (1/1) ... [2022-12-13 21:21:09,315 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:09" (1/1) ... [2022-12-13 21:21:09,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:09" (1/1) ... [2022-12-13 21:21:09,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:21:09,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:21:09,318 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:21:09,318 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:21:09,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:09" (1/1) ... [2022-12-13 21:21:09,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:21:09,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:21:09,344 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:21:09,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:21:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:21:09,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:21:09,451 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:21:09,453 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:21:09,731 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:21:09,736 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:21:09,736 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 21:21:09,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:21:09 BoogieIcfgContainer [2022-12-13 21:21:09,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:21:09,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:21:09,740 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:21:09,742 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:21:09,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:21:09" (1/3) ... [2022-12-13 21:21:09,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cefeee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:21:09, skipping insertion in model container [2022-12-13 21:21:09,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:09" (2/3) ... [2022-12-13 21:21:09,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cefeee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:21:09, skipping insertion in model container [2022-12-13 21:21:09,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:21:09" (3/3) ... [2022-12-13 21:21:09,745 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.diagonal.c [2022-12-13 21:21:09,759 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:21:09,759 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 21:21:09,794 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:21:09,799 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;@7262cebd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:21:09,799 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 21:21:09,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:21:09,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 21:21:09,807 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:21:09,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 21:21:09,808 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:21:09,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:21:09,813 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-13 21:21:09,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:21:09,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911932882] [2022-12-13 21:21:09,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:21:09,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:21:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:21:09,915 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:21:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:21:09,956 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:21:09,958 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 21:21:09,959 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 21:21:09,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:21:09,964 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 21:21:09,966 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:21:09,974 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-13 21:21:09,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:21:09 BoogieIcfgContainer [2022-12-13 21:21:09,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:21:09,979 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:21:09,979 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:21:09,979 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:21:09,980 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:21:09" (3/4) ... [2022-12-13 21:21:09,982 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 21:21:09,982 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:21:09,983 INFO L158 Benchmark]: Toolchain (without parser) took 950.90ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 83.7MB in the beginning and 89.3MB in the end (delta: -5.6MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2022-12-13 21:21:09,983 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:21:09,984 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.28ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 71.1MB in the end (delta: 12.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 21:21:09,984 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.56ms. Allocated memory is still 117.4MB. Free memory was 71.1MB in the beginning and 68.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:21:09,984 INFO L158 Benchmark]: Boogie Preprocessor took 19.64ms. Allocated memory is still 117.4MB. Free memory was 68.6MB in the beginning and 67.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:21:09,985 INFO L158 Benchmark]: RCFGBuilder took 419.79ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 67.3MB in the beginning and 107.3MB in the end (delta: -40.0MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2022-12-13 21:21:09,985 INFO L158 Benchmark]: TraceAbstraction took 238.88ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 90.1MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 21:21:09,985 INFO L158 Benchmark]: Witness Printer took 3.08ms. Allocated memory is still 142.6MB. Free memory was 90.1MB in the beginning and 89.3MB in the end (delta: 836.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:21:09,987 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.28ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 71.1MB in the end (delta: 12.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.56ms. Allocated memory is still 117.4MB. Free memory was 71.1MB in the beginning and 68.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.64ms. Allocated memory is still 117.4MB. Free memory was 68.6MB in the beginning and 67.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 419.79ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 67.3MB in the beginning and 107.3MB in the end (delta: -40.0MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. * TraceAbstraction took 238.88ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 90.1MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 3.08ms. Allocated memory is still 142.6MB. Free memory was 90.1MB in the beginning and 89.3MB in the end (delta: 836.0kB). 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 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 56, overapproximation of bitwiseAnd at line 61. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 4); [L29] const SORT_4 msb_SORT_4 = (SORT_4)1 << (4 - 1); [L31] const SORT_4 var_5 = 0; [L32] const SORT_1 var_14 = 1; [L33] const SORT_4 var_19 = 1; [L34] const SORT_4 var_22 = 15; [L36] SORT_1 input_2; [L37] SORT_1 input_3; [L39] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L40] SORT_4 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L42] SORT_4 init_7_arg_1 = var_5; [L43] state_6 = init_7_arg_1 [L44] SORT_4 init_9_arg_1 = var_5; [L45] state_8 = init_9_arg_1 VAL [init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_14=1, var_19=1, var_22=15, var_5=0] [L48] input_2 = __VERIFIER_nondet_uchar() [L49] input_3 = __VERIFIER_nondet_uchar() [L52] SORT_4 var_10_arg_0 = state_6; [L53] SORT_4 var_10_arg_1 = state_8; [L54] SORT_1 var_10 = var_10_arg_0 < var_10_arg_1; [L55] SORT_1 var_11_arg_0 = var_10; [L56] SORT_1 var_11 = ~var_11_arg_0; [L57] SORT_1 var_15_arg_0 = var_11; [L58] SORT_1 var_15 = ~var_15_arg_0; [L59] SORT_1 var_16_arg_0 = var_14; [L60] SORT_1 var_16_arg_1 = var_15; [L61] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L62] var_16 = var_16 & mask_SORT_1 [L63] SORT_1 bad_17_arg_0 = var_16; [L64] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 21:21:10,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/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_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/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 64bit --witnessprinter.graph.data.programhash 0bbe822661921a086d2e8463a9fe627e3d2feec0733ded33ee82f90f38d03493 --- 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 21:21:11,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:21:11,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:21:11,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:21:11,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:21:11,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:21:11,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:21:11,493 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:21:11,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:21:11,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:21:11,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:21:11,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:21:11,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:21:11,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:21:11,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:21:11,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:21:11,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:21:11,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:21:11,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:21:11,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:21:11,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:21:11,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:21:11,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:21:11,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:21:11,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:21:11,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:21:11,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:21:11,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:21:11,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:21:11,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:21:11,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:21:11,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:21:11,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:21:11,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:21:11,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:21:11,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:21:11,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:21:11,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:21:11,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:21:11,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:21:11,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:21:11,529 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-12-13 21:21:11,551 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:21:11,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:21:11,552 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:21:11,552 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:21:11,553 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:21:11,553 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:21:11,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:21:11,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:21:11,554 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:21:11,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:21:11,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:21:11,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:21:11,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:21:11,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:21:11,555 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 21:21:11,555 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 21:21:11,555 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 21:21:11,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:21:11,556 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:21:11,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:21:11,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:21:11,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:21:11,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:21:11,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:21:11,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:21:11,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:21:11,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:21:11,558 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 21:21:11,558 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 21:21:11,558 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:21:11,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:21:11,558 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:21:11,559 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:21:11,559 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 21:21:11,559 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:21:11,559 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_a996d817-75d5-4d74-a12d-2970d212f667/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bbe822661921a086d2e8463a9fe627e3d2feec0733ded33ee82f90f38d03493 [2022-12-13 21:21:11,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:21:11,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:21:11,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:21:11,809 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:21:11,810 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:21:11,810 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c [2022-12-13 21:21:14,437 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:21:14,596 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:21:14,596 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c [2022-12-13 21:21:14,604 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/data/ad50ab099/2db1cf645cf54cffaf0a7aa1476ea616/FLAG44a725f0c [2022-12-13 21:21:14,618 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/data/ad50ab099/2db1cf645cf54cffaf0a7aa1476ea616 [2022-12-13 21:21:14,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:21:14,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:21:14,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:21:14,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:21:14,627 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:21:14,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:21:14" (1/1) ... [2022-12-13 21:21:14,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29a08349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:14, skipping insertion in model container [2022-12-13 21:21:14,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:21:14" (1/1) ... [2022-12-13 21:21:14,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:21:14,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:21:14,781 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_a996d817-75d5-4d74-a12d-2970d212f667/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c[1107,1120] [2022-12-13 21:21:14,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:21:14,840 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:21:14,852 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_a996d817-75d5-4d74-a12d-2970d212f667/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c[1107,1120] [2022-12-13 21:21:14,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:21:14,894 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:21:14,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:14 WrapperNode [2022-12-13 21:21:14,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:21:14,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:21:14,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:21:14,896 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:21:14,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:14" (1/1) ... [2022-12-13 21:21:14,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:14" (1/1) ... [2022-12-13 21:21:14,934 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 132 [2022-12-13 21:21:14,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:21:14,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:21:14,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:21:14,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:21:14,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:14" (1/1) ... [2022-12-13 21:21:14,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:14" (1/1) ... [2022-12-13 21:21:14,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:14" (1/1) ... [2022-12-13 21:21:14,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:14" (1/1) ... [2022-12-13 21:21:14,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:14" (1/1) ... [2022-12-13 21:21:14,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:14" (1/1) ... [2022-12-13 21:21:14,956 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:14" (1/1) ... [2022-12-13 21:21:14,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:14" (1/1) ... [2022-12-13 21:21:14,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:21:14,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:21:14,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:21:14,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:21:14,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:14" (1/1) ... [2022-12-13 21:21:14,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:21:14,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:21:14,988 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:21:14,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:21:15,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:21:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:21:15,096 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:21:15,098 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:21:15,244 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:21:15,250 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:21:15,250 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 21:21:15,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:21:15 BoogieIcfgContainer [2022-12-13 21:21:15,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:21:15,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:21:15,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:21:15,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:21:15,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:21:14" (1/3) ... [2022-12-13 21:21:15,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1892e23c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:21:15, skipping insertion in model container [2022-12-13 21:21:15,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:14" (2/3) ... [2022-12-13 21:21:15,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1892e23c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:21:15, skipping insertion in model container [2022-12-13 21:21:15,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:21:15" (3/3) ... [2022-12-13 21:21:15,261 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.diagonal.c [2022-12-13 21:21:15,280 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:21:15,280 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 21:21:15,327 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:21:15,334 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;@58a1db58, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:21:15,334 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 21:21:15,338 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:21:15,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 21:21:15,344 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:21:15,345 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 21:21:15,345 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:21:15,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:21:15,350 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-13 21:21:15,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:21:15,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1151544287] [2022-12-13 21:21:15,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:21:15,361 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:21:15,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:21:15,362 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:21:15,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 21:21:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:15,427 WARN L261 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 21:21:15,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:21:15,572 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 21:21:15,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:21:15,573 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:21:15,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1151544287] [2022-12-13 21:21:15,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1151544287] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:21:15,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:21:15,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 21:21:15,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944189632] [2022-12-13 21:21:15,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:21:15,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 21:21:15,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:21:15,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 21:21:15,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 21:21:15,601 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2022-12-13 21:21:15,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:21:15,637 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-13 21:21:15,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 21:21:15,638 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 [2022-12-13 21:21:15,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:21:15,644 INFO L225 Difference]: With dead ends: 20 [2022-12-13 21:21:15,644 INFO L226 Difference]: Without dead ends: 11 [2022-12-13 21:21:15,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:21:15,648 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:21:15,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:21:15,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-13 21:21:15,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-13 21:21:15,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:21:15,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-13 21:21:15,670 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-13 21:21:15,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:21:15,670 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-13 21:21:15,670 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) [2022-12-13 21:21:15,670 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-13 21:21:15,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 21:21:15,671 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:21:15,671 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-13 21:21:15,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 21:21:15,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:21:15,872 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:21:15,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:21:15,874 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-13 21:21:15,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:21:15,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1184204860] [2022-12-13 21:21:15,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:21:15,878 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:21:15,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:21:15,881 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:21:15,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 21:21:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:16,093 WARN L261 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 67 conjunts are in the unsatisfiable core [2022-12-13 21:21:16,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:21:16,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:21:16,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:21:21,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:21:21,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:21:21,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1184204860] [2022-12-13 21:21:21,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1184204860] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:21:21,958 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 21:21:21,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-12-13 21:21:21,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262861798] [2022-12-13 21:21:21,959 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 21:21:21,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 21:21:21,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:21:21,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 21:21:21,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 21:21:21,961 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 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) [2022-12-13 21:21:22,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:21:22,067 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-12-13 21:21:22,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 21:21:22,068 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 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) Word has length 8 [2022-12-13 21:21:22,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:21:22,068 INFO L225 Difference]: With dead ends: 19 [2022-12-13 21:21:22,068 INFO L226 Difference]: Without dead ends: 17 [2022-12-13 21:21:22,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-12-13 21:21:22,069 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:21:22,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 18 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 21:21:22,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-13 21:21:22,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-12-13 21:21:22,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 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) [2022-12-13 21:21:22,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-12-13 21:21:22,072 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-12-13 21:21:22,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:21:22,072 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-12-13 21:21:22,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 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) [2022-12-13 21:21:22,073 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-12-13 21:21:22,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 21:21:22,073 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:21:22,073 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-12-13 21:21:22,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 21:21:22,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:21:22,275 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:21:22,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:21:22,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 2 times [2022-12-13 21:21:22,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:21:22,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [354855465] [2022-12-13 21:21:22,281 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 21:21:22,281 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:21:22,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:21:22,284 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:21:22,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-13 21:21:22,395 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 21:21:22,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:21:22,404 WARN L261 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 167 conjunts are in the unsatisfiable core [2022-12-13 21:21:22,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:21:23,068 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:21:23,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:21:41,881 WARN L233 SmtUtils]: Spent 15.69s on a formula simplification. DAG size of input: 367 DAG size of output: 105 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 21:25:00,854 WARN L233 SmtUtils]: Spent 3.02m on a formula simplification. DAG size of input: 681 DAG size of output: 102 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 21:25:00,955 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:25:00,955 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:25:00,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [354855465] [2022-12-13 21:25:00,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [354855465] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:25:00,956 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 21:25:00,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-12-13 21:25:00,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65192160] [2022-12-13 21:25:00,956 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 21:25:00,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 21:25:00,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:25:00,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 21:25:00,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=95, Unknown=2, NotChecked=0, Total=132 [2022-12-13 21:25:00,957 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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 21:25:02,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:25:02,489 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-12-13 21:25:02,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 21:25:02,492 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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 14 [2022-12-13 21:25:02,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:25:02,492 INFO L225 Difference]: With dead ends: 19 [2022-12-13 21:25:02,492 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 21:25:02,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 203.4s TimeCoverageRelationStatistics Valid=79, Invalid=191, Unknown=2, NotChecked=0, Total=272 [2022-12-13 21:25:02,493 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 24 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 21:25:02,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 9 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 21:25:02,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 21:25:02,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 21:25:02,494 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 21:25:02,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 21:25:02,494 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-12-13 21:25:02,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:25:02,494 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 21:25:02,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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 21:25:02,494 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 21:25:02,494 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 21:25:02,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 21:25:02,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-13 21:25:02,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:25:02,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 21:25:03,023 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 21:25:03,023 INFO L895 garLoopResultBuilder]: At program point L46-2(lines 46 151) the Hoare annotation is: (or (let ((.cse2 (forall ((|v_ULTIMATE.start_main_~var_16_arg_0~0#1_6| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_16_arg_0~0#1_6|) (_ bv1 32)))) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (_ bv0 8)))) (.cse0 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|)) (.cse1 ((_ zero_extend 24) |ULTIMATE.start_main_~state_8~0#1|))) (and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (or (not (bvsgt .cse0 .cse1)) .cse2 (forall ((|v_ULTIMATE.start_main_~var_45_arg_1~0#1_6| (_ BitVec 8))) (let ((.cse3 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_4~0#1|))) (let ((.cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse3 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_45_arg_1~0#1_6|)))))))) (or (forall ((|v_ULTIMATE.start_main_~var_27_arg_1~0#1_5| (_ BitVec 8))) (not (bvslt ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse3 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_27_arg_1~0#1_5|)))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse3 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse4 ((_ zero_extend 24) |ULTIMATE.start_main_~var_19~0#1|)))))))))))))) (forall ((|v_ULTIMATE.start_main_~var_34_arg_1~0#1_6| (_ BitVec 8))) (= .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse3 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_34_arg_1~0#1_6|))))))))))))) (or .cse2 (not (bvslt .cse0 .cse1))))) (and (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|) (= |ULTIMATE.start_main_~state_8~0#1| (_ bv0 8)) (= |ULTIMATE.start_main_~state_6~0#1| (_ bv0 8)) (= (_ bv15 8) |ULTIMATE.start_main_~mask_SORT_4~0#1|) (= (_ bv1 8) |ULTIMATE.start_main_~var_19~0#1|))) [2022-12-13 21:25:03,023 INFO L899 garLoopResultBuilder]: For program point L46-3(lines 46 151) no Hoare annotation was computed. [2022-12-13 21:25:03,023 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 21:25:03,023 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 22 153) the Hoare annotation is: false [2022-12-13 21:25:03,024 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 21:25:03,024 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 21:25:03,024 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-12-13 21:25:03,024 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-12-13 21:25:03,024 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-12-13 21:25:03,024 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-12-13 21:25:03,027 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2022-12-13 21:25:03,029 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:25:03,036 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_6,QUANTIFIED] [2022-12-13 21:25:03,037 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_27_arg_1~0#1_5,QUANTIFIED] [2022-12-13 21:25:03,037 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_45_arg_1~0#1_6,QUANTIFIED] [2022-12-13 21:25:03,037 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_45_arg_1~0#1_6,QUANTIFIED] [2022-12-13 21:25:03,037 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_34_arg_1~0#1_6,QUANTIFIED] [2022-12-13 21:25:03,037 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_6,QUANTIFIED] [2022-12-13 21:25:03,042 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_6,QUANTIFIED] [2022-12-13 21:25:03,042 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_27_arg_1~0#1_5,QUANTIFIED] [2022-12-13 21:25:03,042 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_45_arg_1~0#1_6,QUANTIFIED] [2022-12-13 21:25:03,042 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_45_arg_1~0#1_6,QUANTIFIED] [2022-12-13 21:25:03,042 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_34_arg_1~0#1_6,QUANTIFIED] [2022-12-13 21:25:03,042 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_6,QUANTIFIED] [2022-12-13 21:25:03,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:25:03 BoogieIcfgContainer [2022-12-13 21:25:03,044 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:25:03,044 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:25:03,044 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:25:03,044 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:25:03,045 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:21:15" (3/4) ... [2022-12-13 21:25:03,047 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 21:25:03,055 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-13 21:25:03,055 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 21:25:03,056 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 21:25:03,085 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 21:25:03,085 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:25:03,085 INFO L158 Benchmark]: Toolchain (without parser) took 228463.72ms. Allocated memory was 81.8MB in the beginning and 209.7MB in the end (delta: 127.9MB). Free memory was 60.5MB in the beginning and 80.0MB in the end (delta: -19.5MB). Peak memory consumption was 111.4MB. Max. memory is 16.1GB. [2022-12-13 21:25:03,086 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 65.0MB. Free memory is still 43.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:25:03,086 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.44ms. Allocated memory is still 81.8MB. Free memory was 60.4MB in the beginning and 47.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 21:25:03,086 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.03ms. Allocated memory is still 81.8MB. Free memory was 47.6MB in the beginning and 45.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:25:03,086 INFO L158 Benchmark]: Boogie Preprocessor took 25.42ms. Allocated memory is still 81.8MB. Free memory was 45.5MB in the beginning and 44.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:25:03,087 INFO L158 Benchmark]: RCFGBuilder took 291.46ms. Allocated memory is still 81.8MB. Free memory was 44.1MB in the beginning and 49.6MB in the end (delta: -5.6MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2022-12-13 21:25:03,087 INFO L158 Benchmark]: TraceAbstraction took 227788.79ms. Allocated memory was 81.8MB in the beginning and 209.7MB in the end (delta: 127.9MB). Free memory was 48.9MB in the beginning and 84.2MB in the end (delta: -35.3MB). Peak memory consumption was 94.8MB. Max. memory is 16.1GB. [2022-12-13 21:25:03,087 INFO L158 Benchmark]: Witness Printer took 40.97ms. Allocated memory is still 209.7MB. Free memory was 84.2MB in the beginning and 80.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 21:25:03,089 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 65.0MB. Free memory is still 43.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.44ms. Allocated memory is still 81.8MB. Free memory was 60.4MB in the beginning and 47.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.03ms. Allocated memory is still 81.8MB. Free memory was 47.6MB in the beginning and 45.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.42ms. Allocated memory is still 81.8MB. Free memory was 45.5MB in the beginning and 44.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 291.46ms. Allocated memory is still 81.8MB. Free memory was 44.1MB in the beginning and 49.6MB in the end (delta: -5.6MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * TraceAbstraction took 227788.79ms. Allocated memory was 81.8MB in the beginning and 209.7MB in the end (delta: 127.9MB). Free memory was 48.9MB in the beginning and 84.2MB in the end (delta: -35.3MB). Peak memory consumption was 94.8MB. Max. memory is 16.1GB. * Witness Printer took 40.97ms. Allocated memory is still 209.7MB. Free memory was 84.2MB in the beginning and 80.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_27_arg_1~0#1_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_45_arg_1~0#1_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_45_arg_1~0#1_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_34_arg_1~0#1_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_27_arg_1~0#1_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_45_arg_1~0#1_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_45_arg_1~0#1_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_34_arg_1~0#1_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_6,QUANTIFIED] * 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: 20]: 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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 227.7s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 86 IncrementalHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 11 mSDtfsCounter, 86 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 205.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=2, InterpolantAutomatonStates: 21, 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, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 121 HoareAnnotationTreeSize, 2 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 155 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 224.6s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 14 QuantifiedInterpolants, 2095 SizeOfPredicates, 284 NumberOfNonLiveVariables, 472 ConjunctsInSsa, 250 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/34 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: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 46]: Loop Invariant [2022-12-13 21:25:03,096 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_6,QUANTIFIED] [2022-12-13 21:25:03,096 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_27_arg_1~0#1_5,QUANTIFIED] [2022-12-13 21:25:03,096 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_45_arg_1~0#1_6,QUANTIFIED] [2022-12-13 21:25:03,096 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_45_arg_1~0#1_6,QUANTIFIED] [2022-12-13 21:25:03,096 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_34_arg_1~0#1_6,QUANTIFIED] [2022-12-13 21:25:03,096 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_6,QUANTIFIED] [2022-12-13 21:25:03,097 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_6,QUANTIFIED] [2022-12-13 21:25:03,097 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_27_arg_1~0#1_5,QUANTIFIED] [2022-12-13 21:25:03,097 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_45_arg_1~0#1_6,QUANTIFIED] [2022-12-13 21:25:03,097 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_45_arg_1~0#1_6,QUANTIFIED] [2022-12-13 21:25:03,098 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_34_arg_1~0#1_6,QUANTIFIED] [2022-12-13 21:25:03,098 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_6,QUANTIFIED] Derived loop invariant: ((cond == 1bv32 && ((!~bvsgt32(~zero_extendFrom8To32(state_6), ~zero_extendFrom8To32(state_8)) || (forall v_ULTIMATE.start_main_~var_16_arg_0~0#1_6 : bv8 :: ~bvand32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_16_arg_0~0#1_6), 1bv32)[7:0]), ~zero_extendFrom8To32(mask_SORT_1))[7:0] == 0bv8)) || (forall v_ULTIMATE.start_main_~var_45_arg_1~0#1_6 : bv8 :: (forall v_ULTIMATE.start_main_~var_27_arg_1~0#1_5 : bv8 :: !~bvslt32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_4), ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_27_arg_1~0#1_5)[7:0])[7:0]))[7:0]), ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_4), ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvadd128(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_4), ~zero_extendFrom8To32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_45_arg_1~0#1_6)[7:0]))[7:0]), ~zero_extendFrom8To32(var_19))[7:0])[7:0])[7:0]))[7:0]))) || (forall v_ULTIMATE.start_main_~var_34_arg_1~0#1_6 : bv8 :: ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_4), ~zero_extendFrom8To32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_45_arg_1~0#1_6)[7:0]))[7:0]) == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_4), ~zero_extendFrom8To32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_34_arg_1~0#1_6)[7:0]))[7:0]))))) && ((forall v_ULTIMATE.start_main_~var_16_arg_0~0#1_6 : bv8 :: ~bvand32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_16_arg_0~0#1_6), 1bv32)[7:0]), ~zero_extendFrom8To32(mask_SORT_1))[7:0] == 0bv8) || !~bvslt32(~zero_extendFrom8To32(state_6), ~zero_extendFrom8To32(state_8)))) || ((((1bv8 == mask_SORT_1 && state_8 == 0bv8) && state_6 == 0bv8) && 15bv8 == mask_SORT_4) && 1bv8 == var_19) RESULT: Ultimate proved your program to be correct! [2022-12-13 21:25:03,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a996d817-75d5-4d74-a12d-2970d212f667/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