./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_BufAl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_BufAl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN --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 847d08069fea111ec08fee8233026ce04a978bd5cfe20961eef37343cf6b12ba --- 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-6b4ec56 [2022-11-20 10:58:00,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:58:00,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:58:00,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:58:00,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:58:00,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:58:00,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:58:00,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:58:00,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:58:00,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:58:00,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:58:00,242 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:58:00,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:58:00,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:58:00,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:58:00,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:58:00,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:58:00,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:58:00,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:58:00,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:58:00,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:58:00,272 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:58:00,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:58:00,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:58:00,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:58:00,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:58:00,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:58:00,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:58:00,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:58:00,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:58:00,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:58:00,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:58:00,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:58:00,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:58:00,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:58:00,300 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:58:00,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:58:00,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:58:00,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:58:00,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:58:00,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:58:00,306 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:58:00,345 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:58:00,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:58:00,345 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:58:00,346 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:58:00,346 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:58:00,351 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:58:00,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:58:00,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:58:00,352 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:58:00,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:58:00,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:58:00,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:58:00,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:58:00,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:58:00,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:58:00,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:58:00,356 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:58:00,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:58:00,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:58:00,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:58:00,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:58:00,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:58:00,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:58:00,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:58:00,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:58:00,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:58:00,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:58:00,359 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:58:00,359 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:58:00,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:58:00,359 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 847d08069fea111ec08fee8233026ce04a978bd5cfe20961eef37343cf6b12ba [2022-11-20 10:58:00,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:58:00,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:58:00,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:58:00,697 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:58:00,698 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:58:00,699 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_BufAl.c [2022-11-20 10:58:03,911 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:58:04,302 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:58:04,304 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_BufAl.c [2022-11-20 10:58:04,324 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/data/990ea0953/fa56fe5151e24ce8ae27e756d2154f27/FLAG5df246c3f [2022-11-20 10:58:04,340 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/data/990ea0953/fa56fe5151e24ce8ae27e756d2154f27 [2022-11-20 10:58:04,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:58:04,348 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:58:04,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:58:04,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:58:04,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:58:04,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:58:04" (1/1) ... [2022-11-20 10:58:04,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ec54cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:04, skipping insertion in model container [2022-11-20 10:58:04,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:58:04" (1/1) ... [2022-11-20 10:58:04,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:58:04,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:58:04,614 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_4e1083dd-113d-4ada-8669-55357cd15794/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_BufAl.c[1107,1120] [2022-11-20 10:58:05,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:58:05,055 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:58:05,069 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_4e1083dd-113d-4ada-8669-55357cd15794/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_BufAl.c[1107,1120] [2022-11-20 10:58:05,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:58:05,320 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:58:05,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:05 WrapperNode [2022-11-20 10:58:05,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:58:05,325 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:58:05,326 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:58:05,326 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:58:05,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:05" (1/1) ... [2022-11-20 10:58:05,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:05" (1/1) ... [2022-11-20 10:58:05,521 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1898 [2022-11-20 10:58:05,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:58:05,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:58:05,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:58:05,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:58:05,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:05" (1/1) ... [2022-11-20 10:58:05,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:05" (1/1) ... [2022-11-20 10:58:05,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:05" (1/1) ... [2022-11-20 10:58:05,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:05" (1/1) ... [2022-11-20 10:58:05,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:05" (1/1) ... [2022-11-20 10:58:05,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:05" (1/1) ... [2022-11-20 10:58:05,660 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:05" (1/1) ... [2022-11-20 10:58:05,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:05" (1/1) ... [2022-11-20 10:58:05,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:58:05,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:58:05,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:58:05,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:58:05,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:05" (1/1) ... [2022-11-20 10:58:05,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:58:05,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:05,780 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:05,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:58:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:58:05,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:58:06,448 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:58:06,451 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:59:34,169 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:59:34,179 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:59:34,179 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 10:59:34,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:59:34 BoogieIcfgContainer [2022-11-20 10:59:34,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:59:34,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:59:34,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:59:34,190 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:59:34,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:58:04" (1/3) ... [2022-11-20 10:59:34,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7f2d44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:59:34, skipping insertion in model container [2022-11-20 10:59:34,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:05" (2/3) ... [2022-11-20 10:59:34,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7f2d44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:59:34, skipping insertion in model container [2022-11-20 10:59:34,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:59:34" (3/3) ... [2022-11-20 10:59:34,205 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_BufAl.c [2022-11-20 10:59:34,230 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:59:34,231 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:59:34,310 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:59:34,321 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;@5426e21c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:59:34,322 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:59:34,327 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) [2022-11-20 10:59:34,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 10:59:34,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:59:34,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 10:59:34,335 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:59:34,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:34,341 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 10:59:34,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:59:34,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582796651] [2022-11-20 10:59:34,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:34,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:59:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:34,710 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:59:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:34,912 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:59:34,914 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 10:59:34,916 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 10:59:34,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:59:34,924 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 10:59:34,929 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:59:34,955 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 10:59:34,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:59:34 BoogieIcfgContainer [2022-11-20 10:59:34,965 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:59:34,966 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:59:34,966 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:59:34,967 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:59:34,967 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:59:34" (3/4) ... [2022-11-20 10:59:34,972 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 10:59:34,972 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:59:34,973 INFO L158 Benchmark]: Toolchain (without parser) took 90624.77ms. Allocated memory was 134.2MB in the beginning and 992.0MB in the end (delta: 857.7MB). Free memory was 84.6MB in the beginning and 561.5MB in the end (delta: -477.0MB). Peak memory consumption was 384.3MB. Max. memory is 16.1GB. [2022-11-20 10:59:34,974 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 134.2MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:59:34,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 970.62ms. Allocated memory was 134.2MB in the beginning and 176.2MB in the end (delta: 41.9MB). Free memory was 84.6MB in the beginning and 113.1MB in the end (delta: -28.6MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. [2022-11-20 10:59:34,977 INFO L158 Benchmark]: Boogie Procedure Inliner took 196.05ms. Allocated memory is still 176.2MB. Free memory was 113.1MB in the beginning and 96.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 10:59:34,984 INFO L158 Benchmark]: Boogie Preprocessor took 206.01ms. Allocated memory is still 176.2MB. Free memory was 96.3MB in the beginning and 86.9MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:59:34,986 INFO L158 Benchmark]: RCFGBuilder took 88454.41ms. Allocated memory was 176.2MB in the beginning and 992.0MB in the end (delta: 815.8MB). Free memory was 86.9MB in the beginning and 606.6MB in the end (delta: -519.7MB). Peak memory consumption was 566.6MB. Max. memory is 16.1GB. [2022-11-20 10:59:34,988 INFO L158 Benchmark]: TraceAbstraction took 779.92ms. Allocated memory is still 992.0MB. Free memory was 605.6MB in the beginning and 561.5MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-20 10:59:34,989 INFO L158 Benchmark]: Witness Printer took 5.86ms. Allocated memory is still 992.0MB. Free memory was 561.5MB in the beginning and 561.5MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:59:34,996 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 134.2MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 970.62ms. Allocated memory was 134.2MB in the beginning and 176.2MB in the end (delta: 41.9MB). Free memory was 84.6MB in the beginning and 113.1MB in the end (delta: -28.6MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 196.05ms. Allocated memory is still 176.2MB. Free memory was 113.1MB in the beginning and 96.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 206.01ms. Allocated memory is still 176.2MB. Free memory was 96.3MB in the beginning and 86.9MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 88454.41ms. Allocated memory was 176.2MB in the beginning and 992.0MB in the end (delta: 815.8MB). Free memory was 86.9MB in the beginning and 606.6MB in the end (delta: -519.7MB). Peak memory consumption was 566.6MB. Max. memory is 16.1GB. * TraceAbstraction took 779.92ms. Allocated memory is still 992.0MB. Free memory was 605.6MB in the beginning and 561.5MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 5.86ms. Allocated memory is still 992.0MB. Free memory was 561.5MB in the beginning and 561.5MB in the end (delta: 2.0kB). 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 162, overapproximation of bitwiseOr at line 160, overapproximation of bitwiseAnd at line 135. 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_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 5); [L32] const SORT_7 msb_SORT_7 = (SORT_7)1 << (5 - 1); [L34] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 32); [L35] const SORT_12 msb_SORT_12 = (SORT_12)1 << (32 - 1); [L37] const SORT_7 var_8 = 0; [L38] const SORT_12 var_14 = 0; [L39] const SORT_1 var_22 = 1; [L40] const SORT_1 var_26 = 0; [L41] const SORT_12 var_29 = 15; [L42] const SORT_12 var_79 = 14; [L43] const SORT_12 var_97 = 13; [L44] const SORT_12 var_115 = 12; [L45] const SORT_12 var_133 = 11; [L46] const SORT_12 var_151 = 10; [L47] const SORT_12 var_169 = 9; [L48] const SORT_12 var_187 = 8; [L49] const SORT_12 var_205 = 7; [L50] const SORT_12 var_223 = 6; [L51] const SORT_12 var_241 = 5; [L52] const SORT_12 var_259 = 4; [L53] const SORT_12 var_277 = 3; [L54] const SORT_12 var_295 = 2; [L55] const SORT_12 var_313 = 1; [L56] const SORT_4 var_352 = 0; [L57] const SORT_12 var_356 = 16; [L59] SORT_1 input_2; [L60] SORT_1 input_3; [L61] SORT_4 input_5; [L62] SORT_1 input_6; [L63] SORT_1 input_391; [L64] SORT_4 input_393; [L65] SORT_1 input_409; [L66] SORT_4 input_413; [L68] SORT_7 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_7; [L69] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L70] SORT_1 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L71] SORT_1 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L73] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L74] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] SORT_1 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_1 state_48 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] SORT_1 state_58 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] SORT_1 state_60 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] SORT_1 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] SORT_1 state_66 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] SORT_1 state_350 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] SORT_4 state_353 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L89] SORT_7 init_10_arg_1 = var_8; [L90] state_9 = init_10_arg_1 [L91] SORT_1 init_28_arg_1 = var_26; [L92] state_27 = init_28_arg_1 [L93] SORT_1 init_31_arg_1 = var_26; [L94] state_30 = init_31_arg_1 [L95] SORT_1 init_33_arg_1 = var_26; [L96] state_32 = init_33_arg_1 [L97] SORT_1 init_36_arg_1 = var_26; [L98] state_35 = init_36_arg_1 [L99] SORT_1 init_38_arg_1 = var_26; [L100] state_37 = init_38_arg_1 [L101] SORT_1 init_42_arg_1 = var_26; [L102] state_41 = init_42_arg_1 [L103] SORT_1 init_44_arg_1 = var_26; [L104] state_43 = init_44_arg_1 [L105] SORT_1 init_47_arg_1 = var_26; [L106] state_46 = init_47_arg_1 [L107] SORT_1 init_49_arg_1 = var_26; [L108] state_48 = init_49_arg_1 [L109] SORT_1 init_54_arg_1 = var_26; [L110] state_53 = init_54_arg_1 [L111] SORT_1 init_56_arg_1 = var_26; [L112] state_55 = init_56_arg_1 [L113] SORT_1 init_59_arg_1 = var_26; [L114] state_58 = init_59_arg_1 [L115] SORT_1 init_61_arg_1 = var_26; [L116] state_60 = init_61_arg_1 [L117] SORT_1 init_65_arg_1 = var_26; [L118] state_64 = init_65_arg_1 [L119] SORT_1 init_67_arg_1 = var_26; [L120] state_66 = init_67_arg_1 [L121] SORT_1 init_70_arg_1 = var_26; [L122] state_69 = init_70_arg_1 [L123] SORT_1 init_72_arg_1 = var_26; [L124] state_71 = init_72_arg_1 [L125] SORT_1 init_351_arg_1 = var_26; [L126] state_350 = init_351_arg_1 [L127] SORT_4 init_354_arg_1 = var_352; [L128] state_353 = init_354_arg_1 VAL [init_10_arg_1=0, init_28_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_351_arg_1=0, init_354_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_59_arg_1=0, init_61_arg_1=0, init_65_arg_1=0, init_67_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, mask_SORT_1=1, mask_SORT_12=4294967295, mask_SORT_4=15, mask_SORT_7=31, msb_SORT_1=1, msb_SORT_12=2147483648, msb_SORT_4=8, msb_SORT_7=16, state_27=0, state_30=0, state_32=0, state_35=0, state_350=0, state_353=0, state_37=0, state_41=0, state_43=0, state_46=0, state_48=0, state_53=0, state_55=0, state_58=0, state_60=0, state_64=0, state_66=0, state_69=0, state_71=0, state_9=0, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_22=1, var_223=6, var_241=5, var_259=4, var_26=0, var_277=3, var_29=15, var_295=2, var_313=1, var_352=0, var_356=16, var_79=14, var_8=0, var_97=13] [L131] input_2 = __VERIFIER_nondet_uchar() [L132] input_3 = __VERIFIER_nondet_uchar() [L133] input_5 = __VERIFIER_nondet_uchar() [L134] input_6 = __VERIFIER_nondet_uchar() [L135] input_6 = input_6 & mask_SORT_1 [L136] input_391 = __VERIFIER_nondet_uchar() [L137] input_393 = __VERIFIER_nondet_uchar() [L138] input_409 = __VERIFIER_nondet_uchar() [L139] input_413 = __VERIFIER_nondet_uchar() [L142] SORT_7 var_11_arg_0 = state_9; [L143] SORT_1 var_11 = var_11_arg_0 >> 4; [L144] SORT_1 var_13_arg_0 = var_11; [L145] var_13_arg_0 = var_13_arg_0 & mask_SORT_1 [L146] SORT_12 var_13 = var_13_arg_0; [L147] SORT_12 var_15_arg_0 = var_13; [L148] SORT_12 var_15_arg_1 = var_14; [L149] SORT_1 var_15 = var_15_arg_0 == var_15_arg_1; [L150] SORT_7 var_16_arg_0 = state_9; [L151] SORT_4 var_16 = var_16_arg_0 >> 0; [L152] SORT_4 var_17_arg_0 = var_16; [L153] var_17_arg_0 = var_17_arg_0 & mask_SORT_4 [L154] SORT_12 var_17 = var_17_arg_0; [L155] SORT_12 var_18_arg_0 = var_17; [L156] SORT_12 var_18_arg_1 = var_14; [L157] SORT_1 var_18 = var_18_arg_0 == var_18_arg_1; [L158] SORT_1 var_19_arg_0 = var_15; [L159] SORT_1 var_19_arg_1 = var_18; [L160] SORT_1 var_19 = var_19_arg_0 | var_19_arg_1; [L161] SORT_1 var_23_arg_0 = var_19; [L162] SORT_1 var_23 = ~var_23_arg_0; [L163] SORT_1 var_24_arg_0 = var_22; [L164] SORT_1 var_24_arg_1 = var_23; [L165] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L166] var_24 = var_24 & mask_SORT_1 [L167] SORT_1 bad_25_arg_0 = var_24; [L168] CALL __VERIFIER_assert(!(bad_25_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: 0.6s, 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, 0.2s 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 [2022-11-20 10:59:35,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_BufAl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN --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 847d08069fea111ec08fee8233026ce04a978bd5cfe20961eef37343cf6b12ba --- 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-6b4ec56 [2022-11-20 10:59:37,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:59:37,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:59:37,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:59:37,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:59:37,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:59:37,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:59:37,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:59:37,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:59:37,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:59:37,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:59:37,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:59:37,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:59:37,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:59:37,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:59:37,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:59:37,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:59:37,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:59:37,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:59:37,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:59:37,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:59:37,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:59:37,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:59:37,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:59:37,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:59:37,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:59:37,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:59:37,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:59:37,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:59:37,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:59:37,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:59:37,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:59:37,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:59:37,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:59:37,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:59:37,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:59:37,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:59:37,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:59:37,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:59:37,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:59:37,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:59:37,669 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 10:59:37,714 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:59:37,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:59:37,716 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:59:37,716 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:59:37,717 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:59:37,717 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:59:37,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:59:37,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:59:37,718 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:59:37,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:59:37,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:59:37,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:59:37,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:59:37,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:59:37,721 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:59:37,721 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:59:37,721 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:59:37,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:59:37,721 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:59:37,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:59:37,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:59:37,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:59:37,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:59:37,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:59:37,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:59:37,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:59:37,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:59:37,723 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:59:37,723 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:59:37,724 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:59:37,724 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:59:37,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:59:37,724 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:59:37,725 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 847d08069fea111ec08fee8233026ce04a978bd5cfe20961eef37343cf6b12ba [2022-11-20 10:59:38,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:59:38,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:59:38,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:59:38,239 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:59:38,239 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:59:38,241 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_BufAl.c [2022-11-20 10:59:41,459 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:59:41,831 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:59:41,831 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_BufAl.c [2022-11-20 10:59:41,854 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/data/e33d694f3/bda07b09d4a240c1acd206cbb87fa2ec/FLAG6e3574d55 [2022-11-20 10:59:41,875 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/data/e33d694f3/bda07b09d4a240c1acd206cbb87fa2ec [2022-11-20 10:59:41,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:59:41,880 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:59:41,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:59:41,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:59:41,891 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:59:41,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:59:41" (1/1) ... [2022-11-20 10:59:41,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3db83e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:59:41, skipping insertion in model container [2022-11-20 10:59:41,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:59:41" (1/1) ... [2022-11-20 10:59:41,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:59:41,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:59:42,220 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_4e1083dd-113d-4ada-8669-55357cd15794/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_BufAl.c[1107,1120] [2022-11-20 10:59:42,590 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:59:42,596 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:59:42,609 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_4e1083dd-113d-4ada-8669-55357cd15794/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_BufAl.c[1107,1120] [2022-11-20 10:59:42,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:59:42,861 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:59:42,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:59:42 WrapperNode [2022-11-20 10:59:42,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:59:42,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:59:42,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:59:42,864 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:59:42,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:59:42" (1/1) ... [2022-11-20 10:59:42,932 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:59:42" (1/1) ... [2022-11-20 10:59:43,096 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1898 [2022-11-20 10:59:43,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:59:43,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:59:43,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:59:43,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:59:43,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:59:42" (1/1) ... [2022-11-20 10:59:43,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:59:42" (1/1) ... [2022-11-20 10:59:43,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:59:42" (1/1) ... [2022-11-20 10:59:43,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:59:42" (1/1) ... [2022-11-20 10:59:43,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:59:42" (1/1) ... [2022-11-20 10:59:43,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:59:42" (1/1) ... [2022-11-20 10:59:43,245 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:59:42" (1/1) ... [2022-11-20 10:59:43,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:59:42" (1/1) ... [2022-11-20 10:59:43,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:59:43,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:59:43,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:59:43,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:59:43,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:59:42" (1/1) ... [2022-11-20 10:59:43,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:59:43,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:43,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:43,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:59:43,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:59:43,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:59:44,057 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:59:44,059 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:59:47,675 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:59:47,682 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:59:47,682 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 10:59:47,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:59:47 BoogieIcfgContainer [2022-11-20 10:59:47,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:59:47,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:59:47,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:59:47,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:59:47,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:59:41" (1/3) ... [2022-11-20 10:59:47,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6338b6d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:59:47, skipping insertion in model container [2022-11-20 10:59:47,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:59:42" (2/3) ... [2022-11-20 10:59:47,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6338b6d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:59:47, skipping insertion in model container [2022-11-20 10:59:47,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:59:47" (3/3) ... [2022-11-20 10:59:47,698 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_BufAl.c [2022-11-20 10:59:47,719 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:59:47,719 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:59:47,781 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:59:47,789 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;@5c956e2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:59:47,789 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:59:47,793 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) [2022-11-20 10:59:47,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 10:59:47,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:59:47,803 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 10:59:47,804 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:59:47,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:47,812 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 10:59:47,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:59:47,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787591590] [2022-11-20 10:59:47,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:47,833 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 [2022-11-20 10:59:47,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:59:47,839 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 10:59:47,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 10:59:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:48,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 10:59:48,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:48,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:59:48,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:59:48,618 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:59:48,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787591590] [2022-11-20 10:59:48,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787591590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:59:48,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:59:48,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:59:48,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698924504] [2022-11-20 10:59:48,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:59:48,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:59:48,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:59:48,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:59:48,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:59:48,678 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) [2022-11-20 10:59:49,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:59:49,008 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-20 10:59:49,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:59:49,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-20 10:59:49,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:59:49,020 INFO L225 Difference]: With dead ends: 20 [2022-11-20 10:59:49,020 INFO L226 Difference]: Without dead ends: 11 [2022-11-20 10:59:49,023 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 [2022-11-20 10:59:49,027 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:59:49,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:59:49,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-20 10:59:49,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-20 10:59:49,060 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) [2022-11-20 10:59:49,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-20 10:59:49,062 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-20 10:59:49,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:59:49,062 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-20 10:59:49,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:49,063 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-20 10:59:49,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 10:59:49,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:59:49,063 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-20 10:59:49,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 10:59:49,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 10:59:49,276 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:59:49,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:49,277 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-20 10:59:49,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:59:49,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1934079335] [2022-11-20 10:59:49,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:49,282 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 [2022-11-20 10:59:49,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:59:49,284 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 10:59:49,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 10:59:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:50,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-20 10:59:50,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:50,843 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:59:50,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:59:51,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:59:51,263 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:59:51,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1934079335] [2022-11-20 10:59:51,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1934079335] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:59:51,264 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:59:51,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-20 10:59:51,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246073281] [2022-11-20 10:59:51,265 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:59:51,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:59:51,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:59:51,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:59:51,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:59:51,267 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) [2022-11-20 10:59:51,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:59:51,531 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-20 10:59:51,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:59:51,533 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 [2022-11-20 10:59:51,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:59:51,534 INFO L225 Difference]: With dead ends: 16 [2022-11-20 10:59:51,534 INFO L226 Difference]: Without dead ends: 14 [2022-11-20 10:59:51,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:59:51,536 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:59:51,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 15 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 7 Unchecked, 0.2s Time] [2022-11-20 10:59:51,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-20 10:59:51,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-20 10:59:51,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:51,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-20 10:59:51,542 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-20 10:59:51,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:59:51,542 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-20 10:59:51,543 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) [2022-11-20 10:59:51,543 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-20 10:59:51,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 10:59:51,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:59:51,544 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-20 10:59:51,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/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)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:51,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 10:59:51,767 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:59:51,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:51,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-20 10:59:51,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:59:51,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [330741722] [2022-11-20 10:59:51,772 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:59:51,772 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 [2022-11-20 10:59:51,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:59:51,774 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 10:59:51,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1083dd-113d-4ada-8669-55357cd15794/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 10:59:53,441 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:59:53,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:59:53,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 3491 conjuncts, 356 conjunts are in the unsatisfiable core [2022-11-20 10:59:53,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:58,239 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:59:58,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:02:38,063 WARN L233 SmtUtils]: Spent 2.58m on a formula simplification. DAG size of input: 583 DAG size of output: 546 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)