./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro --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 022102d12c6d0c5097c2cad24d28685bf677a3959fa1edca410f13c7d5b845fd --- 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-8393723 [2022-11-18 19:48:29,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:48:29,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:48:29,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:48:29,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:48:29,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:48:29,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:48:29,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:48:29,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:48:29,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:48:29,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:48:29,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:48:29,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:48:29,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:48:29,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:48:29,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:48:29,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:48:29,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:48:29,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:48:29,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:48:29,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:48:29,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:48:29,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:48:29,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:48:29,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:48:29,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:48:29,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:48:29,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:48:29,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:48:29,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:48:29,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:48:29,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:48:29,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:48:29,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:48:29,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:48:29,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:48:29,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:48:29,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:48:29,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:48:29,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:48:29,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:48:29,322 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 19:48:29,377 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:48:29,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:48:29,381 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:48:29,381 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:48:29,382 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:48:29,382 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:48:29,383 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:48:29,384 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:48:29,384 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:48:29,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:48:29,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:48:29,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:48:29,387 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:48:29,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:48:29,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:48:29,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:48:29,388 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:48:29,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:48:29,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:48:29,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:48:29,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:48:29,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:48:29,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:48:29,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:48:29,390 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:48:29,391 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:48:29,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:48:29,391 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:48:29,392 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:48:29,392 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:48:29,392 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_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 022102d12c6d0c5097c2cad24d28685bf677a3959fa1edca410f13c7d5b845fd [2022-11-18 19:48:29,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:48:29,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:48:29,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:48:29,812 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:48:29,815 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:48:29,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c [2022-11-18 19:48:29,916 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/data/2b8d06441/53fa5c7904e1499a94a8db6298c75f5d/FLAGf97a29de9 [2022-11-18 19:48:30,796 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:48:30,797 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c [2022-11-18 19:48:30,816 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/data/2b8d06441/53fa5c7904e1499a94a8db6298c75f5d/FLAGf97a29de9 [2022-11-18 19:48:30,955 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/data/2b8d06441/53fa5c7904e1499a94a8db6298c75f5d [2022-11-18 19:48:30,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:48:30,961 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:48:30,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:48:30,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:48:30,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:48:30,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:48:30" (1/1) ... [2022-11-18 19:48:30,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2af6d0c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:30, skipping insertion in model container [2022-11-18 19:48:30,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:48:30" (1/1) ... [2022-11-18 19:48:30,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:48:31,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:48:31,385 WARN L234 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_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c[1107,1120] [2022-11-18 19:48:31,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:48:31,924 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:48:31,938 WARN L234 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_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c[1107,1120] [2022-11-18 19:48:32,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:48:32,185 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:48:32,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:32 WrapperNode [2022-11-18 19:48:32,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:48:32,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:48:32,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:48:32,188 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:48:32,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:32" (1/1) ... [2022-11-18 19:48:32,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:32" (1/1) ... [2022-11-18 19:48:32,456 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2894 [2022-11-18 19:48:32,457 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:48:32,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:48:32,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:48:32,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:48:32,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:32" (1/1) ... [2022-11-18 19:48:32,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:32" (1/1) ... [2022-11-18 19:48:32,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:32" (1/1) ... [2022-11-18 19:48:32,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:32" (1/1) ... [2022-11-18 19:48:32,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:32" (1/1) ... [2022-11-18 19:48:32,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:32" (1/1) ... [2022-11-18 19:48:32,642 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:32" (1/1) ... [2022-11-18 19:48:32,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:32" (1/1) ... [2022-11-18 19:48:32,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:48:32,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:48:32,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:48:32,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:48:32,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:32" (1/1) ... [2022-11-18 19:48:32,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:48:32,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:48:32,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:48:32,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:48:32,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:48:32,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:48:33,365 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:48:33,368 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:48:35,945 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:48:35,962 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:48:35,962 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:48:35,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:48:35 BoogieIcfgContainer [2022-11-18 19:48:35,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:48:35,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:48:35,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:48:35,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:48:35,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:48:30" (1/3) ... [2022-11-18 19:48:35,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7068eaa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:48:35, skipping insertion in model container [2022-11-18 19:48:35,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:32" (2/3) ... [2022-11-18 19:48:35,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7068eaa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:48:35, skipping insertion in model container [2022-11-18 19:48:35,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:48:35" (3/3) ... [2022-11-18 19:48:35,976 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p5.c [2022-11-18 19:48:35,998 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:48:35,998 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:48:36,080 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:48:36,088 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;@1c7980b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:48:36,089 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:48:36,097 INFO L276 IsEmpty]: Start isEmpty. Operand has 482 states, 480 states have (on average 1.6625) internal successors, (798), 481 states have internal predecessors, (798), 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) [2022-11-18 19:48:36,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 19:48:36,105 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:48:36,106 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:48:36,107 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:48:36,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:36,117 INFO L85 PathProgramCache]: Analyzing trace with hash -327482853, now seen corresponding path program 1 times [2022-11-18 19:48:36,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:48:36,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59647340] [2022-11-18 19:48:36,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:36,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:48:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:37,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:48:37,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:48:37,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59647340] [2022-11-18 19:48:37,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59647340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:48:37,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:48:37,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:48:37,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502198331] [2022-11-18 19:48:37,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:48:37,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:48:37,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:48:37,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:48:37,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:48:37,099 INFO L87 Difference]: Start difference. First operand has 482 states, 480 states have (on average 1.6625) internal successors, (798), 481 states have internal predecessors, (798), 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 2.25) internal successors, (9), 4 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) [2022-11-18 19:48:37,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:48:37,402 INFO L93 Difference]: Finished difference Result 1438 states and 2392 transitions. [2022-11-18 19:48:37,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:48:37,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) Word has length 9 [2022-11-18 19:48:37,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:48:37,426 INFO L225 Difference]: With dead ends: 1438 [2022-11-18 19:48:37,426 INFO L226 Difference]: Without dead ends: 958 [2022-11-18 19:48:37,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:48:37,436 INFO L413 NwaCegarLoop]: 800 mSDtfsCounter, 2352 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2352 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:48:37,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2352 Valid, 1603 Invalid, 18 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:48:37,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2022-11-18 19:48:37,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 480. [2022-11-18 19:48:37,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 479 states have (on average 1.6576200417536535) internal successors, (794), 479 states have internal predecessors, (794), 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) [2022-11-18 19:48:37,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 794 transitions. [2022-11-18 19:48:37,533 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 794 transitions. Word has length 9 [2022-11-18 19:48:37,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:48:37,533 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 794 transitions. [2022-11-18 19:48:37,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2022-11-18 19:48:37,534 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 794 transitions. [2022-11-18 19:48:37,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 19:48:37,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:48:37,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:48:37,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:48:37,535 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:48:37,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:37,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1560249297, now seen corresponding path program 1 times [2022-11-18 19:48:37,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:48:37,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844057367] [2022-11-18 19:48:37,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:37,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:48:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:48:37,680 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:48:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:48:37,937 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:48:37,938 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 19:48:37,940 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 19:48:37,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:48:37,947 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-18 19:48:37,953 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:48:38,021 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 19:48:38,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:48:38 BoogieIcfgContainer [2022-11-18 19:48:38,047 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:48:38,048 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:48:38,048 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:48:38,049 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:48:38,049 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:48:35" (3/4) ... [2022-11-18 19:48:38,053 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 19:48:38,053 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:48:38,056 INFO L158 Benchmark]: Toolchain (without parser) took 7094.15ms. Allocated memory was 102.8MB in the beginning and 276.8MB in the end (delta: 174.1MB). Free memory was 71.6MB in the beginning and 115.7MB in the end (delta: -44.1MB). Peak memory consumption was 129.0MB. Max. memory is 16.1GB. [2022-11-18 19:48:38,057 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 102.8MB. Free memory was 56.8MB in the beginning and 56.7MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:48:38,063 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1219.04ms. Allocated memory was 102.8MB in the beginning and 144.7MB in the end (delta: 41.9MB). Free memory was 71.3MB in the beginning and 97.1MB in the end (delta: -25.8MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2022-11-18 19:48:38,065 INFO L158 Benchmark]: Boogie Procedure Inliner took 269.14ms. Allocated memory is still 144.7MB. Free memory was 97.1MB in the beginning and 74.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-18 19:48:38,065 INFO L158 Benchmark]: Boogie Preprocessor took 218.47ms. Allocated memory is still 144.7MB. Free memory was 74.0MB in the beginning and 92.9MB in the end (delta: -18.9MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2022-11-18 19:48:38,068 INFO L158 Benchmark]: RCFGBuilder took 3288.50ms. Allocated memory was 144.7MB in the beginning and 276.8MB in the end (delta: 132.1MB). Free memory was 92.9MB in the beginning and 140.5MB in the end (delta: -47.6MB). Peak memory consumption was 91.4MB. Max. memory is 16.1GB. [2022-11-18 19:48:38,069 INFO L158 Benchmark]: TraceAbstraction took 2079.50ms. Allocated memory is still 276.8MB. Free memory was 140.5MB in the beginning and 116.7MB in the end (delta: 23.8MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2022-11-18 19:48:38,072 INFO L158 Benchmark]: Witness Printer took 6.54ms. Allocated memory is still 276.8MB. Free memory was 116.7MB in the beginning and 115.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:48:38,079 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 102.8MB. Free memory was 56.8MB in the beginning and 56.7MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1219.04ms. Allocated memory was 102.8MB in the beginning and 144.7MB in the end (delta: 41.9MB). Free memory was 71.3MB in the beginning and 97.1MB in the end (delta: -25.8MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 269.14ms. Allocated memory is still 144.7MB. Free memory was 97.1MB in the beginning and 74.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 218.47ms. Allocated memory is still 144.7MB. Free memory was 74.0MB in the beginning and 92.9MB in the end (delta: -18.9MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * RCFGBuilder took 3288.50ms. Allocated memory was 144.7MB in the beginning and 276.8MB in the end (delta: 132.1MB). Free memory was 92.9MB in the beginning and 140.5MB in the end (delta: -47.6MB). Peak memory consumption was 91.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2079.50ms. Allocated memory is still 276.8MB. Free memory was 140.5MB in the beginning and 116.7MB in the end (delta: 23.8MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. * Witness Printer took 6.54ms. Allocated memory is still 276.8MB. Free memory was 116.7MB in the beginning and 115.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 192, overapproximation of bitwiseOr at line 200, overapproximation of bitwiseAnd at line 220. 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_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 1); [L31] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 3); [L32] const SORT_9 msb_SORT_9 = (SORT_9)1 << (3 - 1); [L34] const SORT_44 mask_SORT_44 = (SORT_44)-1 >> (sizeof(SORT_44) * 8 - 12); [L35] const SORT_44 msb_SORT_44 = (SORT_44)1 << (12 - 1); [L37] const SORT_98 mask_SORT_98 = (SORT_98)-1 >> (sizeof(SORT_98) * 8 - 17); [L38] const SORT_98 msb_SORT_98 = (SORT_98)1 << (17 - 1); [L40] const SORT_99 mask_SORT_99 = (SORT_99)-1 >> (sizeof(SORT_99) * 8 - 5); [L41] const SORT_99 msb_SORT_99 = (SORT_99)1 << (5 - 1); [L43] const SORT_102 mask_SORT_102 = (SORT_102)-1 >> (sizeof(SORT_102) * 8 - 9); [L44] const SORT_102 msb_SORT_102 = (SORT_102)1 << (9 - 1); [L46] const SORT_104 mask_SORT_104 = (SORT_104)-1 >> (sizeof(SORT_104) * 8 - 10); [L47] const SORT_104 msb_SORT_104 = (SORT_104)1 << (10 - 1); [L49] const SORT_107 mask_SORT_107 = (SORT_107)-1 >> (sizeof(SORT_107) * 8 - 11); [L50] const SORT_107 msb_SORT_107 = (SORT_107)1 << (11 - 1); [L52] const SORT_112 mask_SORT_112 = (SORT_112)-1 >> (sizeof(SORT_112) * 8 - 13); [L53] const SORT_112 msb_SORT_112 = (SORT_112)1 << (13 - 1); [L55] const SORT_115 mask_SORT_115 = (SORT_115)-1 >> (sizeof(SORT_115) * 8 - 14); [L56] const SORT_115 msb_SORT_115 = (SORT_115)1 << (14 - 1); [L58] const SORT_118 mask_SORT_118 = (SORT_118)-1 >> (sizeof(SORT_118) * 8 - 15); [L59] const SORT_118 msb_SORT_118 = (SORT_118)1 << (15 - 1); [L61] const SORT_151 mask_SORT_151 = (SORT_151)-1 >> (sizeof(SORT_151) * 8 - 7); [L62] const SORT_151 msb_SORT_151 = (SORT_151)1 << (7 - 1); [L64] const SORT_211 mask_SORT_211 = (SORT_211)-1 >> (sizeof(SORT_211) * 8 - 2); [L65] const SORT_211 msb_SORT_211 = (SORT_211)1 << (2 - 1); [L67] const SORT_370 mask_SORT_370 = (SORT_370)-1 >> (sizeof(SORT_370) * 8 - 4); [L68] const SORT_370 msb_SORT_370 = (SORT_370)1 << (4 - 1); [L70] const SORT_373 mask_SORT_373 = (SORT_373)-1 >> (sizeof(SORT_373) * 8 - 6); [L71] const SORT_373 msb_SORT_373 = (SORT_373)1 << (6 - 1); [L73] const SORT_376 mask_SORT_376 = (SORT_376)-1 >> (sizeof(SORT_376) * 8 - 8); [L74] const SORT_376 msb_SORT_376 = (SORT_376)1 << (8 - 1); [L76] const SORT_3 var_6 = 0; [L77] const SORT_9 var_11 = 2; [L78] const SORT_9 var_13 = 0; [L79] const SORT_1 var_19 = 0; [L80] const SORT_1 var_34 = 1; [L81] const SORT_44 var_45 = 0; [L82] const SORT_9 var_61 = 1; [L83] const SORT_9 var_66 = 4; [L84] const SORT_9 var_68 = 5; [L85] const SORT_9 var_72 = 3; [L86] const SORT_99 var_100 = 0; [L87] const SORT_151 var_153 = 5; [L88] const SORT_151 var_157 = 4; [L89] const SORT_151 var_161 = 3; [L90] const SORT_151 var_165 = 2; [L91] const SORT_151 var_169 = 1; [L92] const SORT_151 var_173 = 0; [L93] const SORT_44 var_196 = 2; [L94] const SORT_211 var_213 = 0; [L95] const SORT_3 var_220 = 65535; [L97] SORT_1 input_2; [L98] SORT_3 input_4; [L99] SORT_3 input_5; [L100] SORT_3 input_208; [L101] SORT_3 input_209; [L102] SORT_3 input_210; [L103] SORT_3 input_219; [L104] SORT_3 input_228; [L105] SORT_3 input_229; [L106] SORT_3 input_230; [L107] SORT_3 input_233; [L108] SORT_3 input_251; [L109] SORT_3 input_252; [L110] SORT_3 input_253; [L111] SORT_3 input_256; [L112] SORT_3 input_258; [L113] SORT_211 input_272; [L114] SORT_211 input_273; [L115] SORT_211 input_274; [L117] SORT_3 state_7 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L118] SORT_9 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L119] SORT_1 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] SORT_3 state_23 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L121] SORT_3 state_38 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L122] SORT_3 state_40 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L123] SORT_3 state_42 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L124] SORT_44 state_46 = __VERIFIER_nondet_ushort() & mask_SORT_44; [L125] SORT_44 state_48 = __VERIFIER_nondet_ushort() & mask_SORT_44; [L126] SORT_3 state_50 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L127] SORT_3 state_52 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L128] SORT_3 state_54 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L129] SORT_3 state_56 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L131] SORT_3 init_8_arg_1 = var_6; [L132] state_7 = init_8_arg_1 [L133] SORT_9 init_15_arg_1 = var_13; [L134] state_14 = init_15_arg_1 [L135] SORT_1 init_21_arg_1 = var_19; [L136] state_20 = init_21_arg_1 [L137] SORT_3 init_24_arg_1 = var_6; [L138] state_23 = init_24_arg_1 [L139] SORT_3 init_39_arg_1 = var_6; [L140] state_38 = init_39_arg_1 [L141] SORT_3 init_41_arg_1 = var_6; [L142] state_40 = init_41_arg_1 [L143] SORT_3 init_43_arg_1 = var_6; [L144] state_42 = init_43_arg_1 [L145] SORT_44 init_47_arg_1 = var_45; [L146] state_46 = init_47_arg_1 [L147] SORT_44 init_49_arg_1 = var_45; [L148] state_48 = init_49_arg_1 [L149] SORT_3 init_51_arg_1 = var_6; [L150] state_50 = init_51_arg_1 [L151] SORT_3 init_53_arg_1 = var_6; [L152] state_52 = init_53_arg_1 [L153] SORT_3 init_55_arg_1 = var_6; [L154] state_54 = init_55_arg_1 [L155] SORT_3 init_57_arg_1 = var_6; [L156] state_56 = init_57_arg_1 VAL [init_15_arg_1=0, init_21_arg_1=0, init_24_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_8_arg_1=0, mask_SORT_1=1, mask_SORT_102=511, mask_SORT_104=1023, mask_SORT_107=2047, mask_SORT_112=8191, mask_SORT_115=16383, mask_SORT_118=32767, mask_SORT_151=127, mask_SORT_211=3, mask_SORT_3=65535, mask_SORT_370=15, mask_SORT_373=63, mask_SORT_376=255, mask_SORT_44=4095, mask_SORT_9=7, mask_SORT_98=4294967295, mask_SORT_99=31, msb_SORT_1=1, msb_SORT_102=256, msb_SORT_104=512, msb_SORT_107=1024, msb_SORT_112=4096, msb_SORT_115=8192, msb_SORT_118=16384, msb_SORT_151=64, msb_SORT_211=2, msb_SORT_3=32768, msb_SORT_370=8, msb_SORT_373=32, msb_SORT_376=128, msb_SORT_44=2048, msb_SORT_9=4, msb_SORT_98=65536, msb_SORT_99=16, state_14=0, state_20=0, state_23=0, state_38=0, state_40=0, state_42=0, state_46=0, state_48=0, state_50=0, state_52=0, state_54=0, state_56=0, state_7=0, var_100=0, var_11=2, var_13=0, var_153=5, var_157=4, var_161=3, var_165=2, var_169=1, var_173=0, var_19=0, var_196=2, var_213=0, var_220=65535, var_34=1, var_45=0, var_6=0, var_61=1, var_66=4, var_68=5, var_72=3] [L159] input_2 = __VERIFIER_nondet_uchar() [L160] input_4 = __VERIFIER_nondet_ushort() [L161] input_5 = __VERIFIER_nondet_ushort() [L162] input_208 = __VERIFIER_nondet_ushort() [L163] input_209 = __VERIFIER_nondet_ushort() [L164] input_210 = __VERIFIER_nondet_ushort() [L165] input_219 = __VERIFIER_nondet_ushort() [L166] input_228 = __VERIFIER_nondet_ushort() [L167] input_229 = __VERIFIER_nondet_ushort() [L168] input_230 = __VERIFIER_nondet_ushort() [L169] input_233 = __VERIFIER_nondet_ushort() [L170] input_251 = __VERIFIER_nondet_ushort() [L171] input_252 = __VERIFIER_nondet_ushort() [L172] input_253 = __VERIFIER_nondet_ushort() [L173] input_256 = __VERIFIER_nondet_ushort() [L174] input_258 = __VERIFIER_nondet_ushort() [L175] input_272 = __VERIFIER_nondet_uchar() [L176] input_273 = __VERIFIER_nondet_uchar() [L177] input_274 = __VERIFIER_nondet_uchar() [L180] SORT_3 var_10_arg_0 = state_7; [L181] SORT_9 var_10 = var_10_arg_0 >> 0; VAL [init_15_arg_1=0, init_21_arg_1=0, init_24_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_8_arg_1=0, input_2=10, input_208=4, input_209=1, input_210=8, input_219=9, input_228=12, input_229=13, input_230=17, input_233=11, input_251=14, input_252=18, input_253=16, input_256=19, input_258=15, input_272=5, input_273=3, input_274=20, input_4=6, input_5=2, mask_SORT_1=1, mask_SORT_102=511, mask_SORT_104=1023, mask_SORT_107=2047, mask_SORT_112=8191, mask_SORT_115=16383, mask_SORT_118=32767, mask_SORT_151=127, mask_SORT_211=3, mask_SORT_3=65535, mask_SORT_370=15, mask_SORT_373=63, mask_SORT_376=255, mask_SORT_44=4095, mask_SORT_9=7, mask_SORT_98=4294967295, mask_SORT_99=31, msb_SORT_1=1, msb_SORT_102=256, msb_SORT_104=512, msb_SORT_107=1024, msb_SORT_112=4096, msb_SORT_115=8192, msb_SORT_118=16384, msb_SORT_151=64, msb_SORT_211=2, msb_SORT_3=32768, msb_SORT_370=8, msb_SORT_373=32, msb_SORT_376=128, msb_SORT_44=2048, msb_SORT_9=4, msb_SORT_98=65536, msb_SORT_99=16, state_14=0, state_20=0, state_23=0, state_38=0, state_40=0, state_42=0, state_46=0, state_48=0, state_50=0, state_52=0, state_54=0, state_56=0, state_7=0, var_10=0, var_100=0, var_10_arg_0=0, var_11=2, var_13=0, var_153=5, var_157=4, var_161=3, var_165=2, var_169=1, var_173=0, var_19=0, var_196=2, var_213=0, var_220=65535, var_34=1, var_45=0, var_6=0, var_61=1, var_66=4, var_68=5, var_72=3] [L182] var_10 = var_10 & mask_SORT_9 VAL [init_15_arg_1=0, init_21_arg_1=0, init_24_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_8_arg_1=0, input_2=10, input_208=4, input_209=1, input_210=8, input_219=9, input_228=12, input_229=13, input_230=17, input_233=11, input_251=14, input_252=18, input_253=16, input_256=19, input_258=15, input_272=5, input_273=3, input_274=20, input_4=6, input_5=2, mask_SORT_1=1, mask_SORT_102=511, mask_SORT_104=1023, mask_SORT_107=2047, mask_SORT_112=8191, mask_SORT_115=16383, mask_SORT_118=32767, mask_SORT_151=127, mask_SORT_211=3, mask_SORT_3=65535, mask_SORT_370=15, mask_SORT_373=63, mask_SORT_376=255, mask_SORT_44=4095, mask_SORT_9=7, mask_SORT_98=4294967295, mask_SORT_99=31, msb_SORT_1=1, msb_SORT_102=256, msb_SORT_104=512, msb_SORT_107=1024, msb_SORT_112=4096, msb_SORT_115=8192, msb_SORT_118=16384, msb_SORT_151=64, msb_SORT_211=2, msb_SORT_3=32768, msb_SORT_370=8, msb_SORT_373=32, msb_SORT_376=128, msb_SORT_44=2048, msb_SORT_9=4, msb_SORT_98=65536, msb_SORT_99=16, state_14=0, state_20=0, state_23=0, state_38=0, state_40=0, state_42=0, state_46=0, state_48=0, state_50=0, state_52=0, state_54=0, state_56=0, state_7=0, var_10=0, var_100=0, var_10_arg_0=0, var_11=2, var_13=0, var_153=5, var_157=4, var_161=3, var_165=2, var_169=1, var_173=0, var_19=0, var_196=2, var_213=0, var_220=65535, var_34=1, var_45=0, var_6=0, var_61=1, var_66=4, var_68=5, var_72=3] [L183] SORT_9 var_12_arg_0 = var_10; [L184] SORT_9 var_12_arg_1 = var_11; [L185] SORT_1 var_12 = var_12_arg_0 == var_12_arg_1; [L186] SORT_9 var_16_arg_0 = state_14; [L187] SORT_1 var_16 = var_16_arg_0 >> 2; [L188] SORT_1 var_17_arg_0 = var_12; [L189] SORT_1 var_17_arg_1 = var_16; [L190] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L191] SORT_1 var_18_arg_0 = var_17; [L192] SORT_1 var_18 = ~var_18_arg_0; [L193] SORT_1 var_22_arg_0 = state_20; [L194] SORT_1 var_22 = ~var_22_arg_0; [L195] SORT_3 var_25_arg_0 = state_23; [L196] SORT_3 var_25_arg_1 = var_6; [L197] SORT_1 var_25 = var_25_arg_0 == var_25_arg_1; [L198] SORT_1 var_26_arg_0 = var_22; [L199] SORT_1 var_26_arg_1 = var_25; [L200] SORT_1 var_26 = var_26_arg_0 | var_26_arg_1; [L201] SORT_3 var_27_arg_0 = state_23; [L202] SORT_3 var_27_arg_1 = var_6; [L203] SORT_1 var_27 = var_27_arg_0 == var_27_arg_1; [L204] SORT_1 var_28_arg_0 = var_27; [L205] SORT_1 var_28 = ~var_28_arg_0; [L206] SORT_1 var_29_arg_0 = var_28; [L207] SORT_1 var_29_arg_1 = state_20; [L208] SORT_1 var_29 = var_29_arg_0 | var_29_arg_1; [L209] SORT_1 var_30_arg_0 = var_26; [L210] SORT_1 var_30_arg_1 = var_29; [L211] SORT_1 var_30 = var_30_arg_0 & var_30_arg_1; [L212] SORT_1 var_31_arg_0 = var_18; [L213] SORT_1 var_31_arg_1 = var_30; [L214] SORT_1 var_31 = var_31_arg_0 | var_31_arg_1; [L215] SORT_1 var_35_arg_0 = var_31; [L216] SORT_1 var_35 = ~var_35_arg_0; [L217] SORT_1 var_36_arg_0 = var_34; [L218] SORT_1 var_36_arg_1 = var_35; [L219] SORT_1 var_36 = var_36_arg_0 & var_36_arg_1; VAL [init_15_arg_1=0, init_21_arg_1=0, init_24_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_8_arg_1=0, input_2=10, input_208=4, input_209=1, input_210=8, input_219=9, input_228=12, input_229=13, input_230=17, input_233=11, input_251=14, input_252=18, input_253=16, input_256=19, input_258=15, input_272=5, input_273=3, input_274=20, input_4=6, input_5=2, mask_SORT_1=1, mask_SORT_102=511, mask_SORT_104=1023, mask_SORT_107=2047, mask_SORT_112=8191, mask_SORT_115=16383, mask_SORT_118=32767, mask_SORT_151=127, mask_SORT_211=3, mask_SORT_3=65535, mask_SORT_370=15, mask_SORT_373=63, mask_SORT_376=255, mask_SORT_44=4095, mask_SORT_9=7, mask_SORT_98=4294967295, mask_SORT_99=31, msb_SORT_1=1, msb_SORT_102=256, msb_SORT_104=512, msb_SORT_107=1024, msb_SORT_112=4096, msb_SORT_115=8192, msb_SORT_118=16384, msb_SORT_151=64, msb_SORT_211=2, msb_SORT_3=32768, msb_SORT_370=8, msb_SORT_373=32, msb_SORT_376=128, msb_SORT_44=2048, msb_SORT_9=4, msb_SORT_98=65536, msb_SORT_99=16, state_14=0, state_20=0, state_23=0, state_38=0, state_40=0, state_42=0, state_46=0, state_48=0, state_50=0, state_52=0, state_54=0, state_56=0, state_7=0, var_10=0, var_100=0, var_10_arg_0=0, var_11=2, var_12=0, var_12_arg_0=0, var_12_arg_1=2, var_13=0, var_153=5, var_157=4, var_16=0, var_161=3, var_165=2, var_169=1, var_16_arg_0=0, var_17=0, var_173=0, var_17_arg_0=0, var_17_arg_1=0, var_18=0, var_18_arg_0=0, var_19=0, var_196=2, var_213=0, var_22=1, var_220=65535, var_22_arg_0=0, var_25=1, var_25_arg_0=0, var_25_arg_1=0, var_26=1, var_26_arg_0=1, var_26_arg_1=1, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_28=2, var_28_arg_0=1, var_29=2, var_29_arg_0=2, var_29_arg_1=0, var_30=0, var_30_arg_0=1, var_30_arg_1=2, var_31=0, var_31_arg_0=0, var_31_arg_1=0, var_34=1, var_35=255, var_35_arg_0=0, var_36=7, var_36_arg_0=1, var_36_arg_1=255, var_45=0, var_6=0, var_61=1, var_66=4, var_68=5, var_72=3] [L220] var_36 = var_36 & mask_SORT_1 VAL [init_15_arg_1=0, init_21_arg_1=0, init_24_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_8_arg_1=0, input_2=10, input_208=4, input_209=1, input_210=8, input_219=9, input_228=12, input_229=13, input_230=17, input_233=11, input_251=14, input_252=18, input_253=16, input_256=19, input_258=15, input_272=5, input_273=3, input_274=20, input_4=6, input_5=2, mask_SORT_1=1, mask_SORT_102=511, mask_SORT_104=1023, mask_SORT_107=2047, mask_SORT_112=8191, mask_SORT_115=16383, mask_SORT_118=32767, mask_SORT_151=127, mask_SORT_211=3, mask_SORT_3=65535, mask_SORT_370=15, mask_SORT_373=63, mask_SORT_376=255, mask_SORT_44=4095, mask_SORT_9=7, mask_SORT_98=4294967295, mask_SORT_99=31, msb_SORT_1=1, msb_SORT_102=256, msb_SORT_104=512, msb_SORT_107=1024, msb_SORT_112=4096, msb_SORT_115=8192, msb_SORT_118=16384, msb_SORT_151=64, msb_SORT_211=2, msb_SORT_3=32768, msb_SORT_370=8, msb_SORT_373=32, msb_SORT_376=128, msb_SORT_44=2048, msb_SORT_9=4, msb_SORT_98=65536, msb_SORT_99=16, state_14=0, state_20=0, state_23=0, state_38=0, state_40=0, state_42=0, state_46=0, state_48=0, state_50=0, state_52=0, state_54=0, state_56=0, state_7=0, var_10=0, var_100=0, var_10_arg_0=0, var_11=2, var_12=0, var_12_arg_0=0, var_12_arg_1=2, var_13=0, var_153=5, var_157=4, var_16=0, var_161=3, var_165=2, var_169=1, var_16_arg_0=0, var_17=0, var_173=0, var_17_arg_0=0, var_17_arg_1=0, var_18=0, var_18_arg_0=0, var_19=0, var_196=2, var_213=0, var_22=1, var_220=65535, var_22_arg_0=0, var_25=1, var_25_arg_0=0, var_25_arg_1=0, var_26=1, var_26_arg_0=1, var_26_arg_1=1, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_28=2, var_28_arg_0=1, var_29=2, var_29_arg_0=2, var_29_arg_1=0, var_30=0, var_30_arg_0=1, var_30_arg_1=2, var_31=0, var_31_arg_0=0, var_31_arg_1=0, var_34=1, var_35=255, var_35_arg_0=0, var_36=1, var_36_arg_0=1, var_36_arg_1=255, var_45=0, var_6=0, var_61=1, var_66=4, var_68=5, var_72=3] [L221] SORT_1 bad_37_arg_0 = var_36; [L222] CALL __VERIFIER_assert(!(bad_37_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, 482 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2352 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2352 mSDsluCounter, 1603 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 803 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 800 mSDtfsCounter, 17 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=482occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 478 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 19:48:38,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro --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 022102d12c6d0c5097c2cad24d28685bf677a3959fa1edca410f13c7d5b845fd --- 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-8393723 [2022-11-18 19:48:40,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:48:40,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:48:40,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:48:40,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:48:40,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:48:40,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:48:40,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:48:40,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:48:40,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:48:40,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:48:40,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:48:40,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:48:40,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:48:40,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:48:40,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:48:40,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:48:40,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:48:40,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:48:40,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:48:40,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:48:40,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:48:40,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:48:40,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:48:40,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:48:40,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:48:40,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:48:40,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:48:40,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:48:40,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:48:40,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:48:40,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:48:40,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:48:40,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:48:40,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:48:40,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:48:40,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:48:40,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:48:40,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:48:40,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:48:40,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:48:40,881 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-18 19:48:40,933 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:48:40,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:48:40,936 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:48:40,936 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:48:40,937 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:48:40,938 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:48:40,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:48:40,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:48:40,940 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:48:40,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:48:40,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:48:40,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:48:40,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:48:40,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:48:40,943 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 19:48:40,944 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 19:48:40,944 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 19:48:40,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:48:40,944 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:48:40,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:48:40,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:48:40,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:48:40,946 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:48:40,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:48:40,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:48:40,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:48:40,947 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:48:40,947 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 19:48:40,947 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 19:48:40,948 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:48:40,948 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:48:40,948 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:48:40,949 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 19:48:40,949 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_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 022102d12c6d0c5097c2cad24d28685bf677a3959fa1edca410f13c7d5b845fd [2022-11-18 19:48:41,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:48:41,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:48:41,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:48:41,474 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:48:41,477 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:48:41,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c [2022-11-18 19:48:41,575 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/data/1508d0e3c/d5b1322225ea4bc9908e52f2f0084c84/FLAGa2a5dded6 [2022-11-18 19:48:42,474 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:48:42,475 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c [2022-11-18 19:48:42,492 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/data/1508d0e3c/d5b1322225ea4bc9908e52f2f0084c84/FLAGa2a5dded6 [2022-11-18 19:48:42,597 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/data/1508d0e3c/d5b1322225ea4bc9908e52f2f0084c84 [2022-11-18 19:48:42,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:48:42,601 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:48:42,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:48:42,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:48:42,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:48:42,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:48:42" (1/1) ... [2022-11-18 19:48:42,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@179979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:42, skipping insertion in model container [2022-11-18 19:48:42,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:48:42" (1/1) ... [2022-11-18 19:48:42,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:48:42,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:48:42,941 WARN L234 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_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c[1107,1120] [2022-11-18 19:48:43,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:48:43,559 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:48:43,577 WARN L234 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_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c[1107,1120] [2022-11-18 19:48:43,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:48:43,858 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:48:43,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:43 WrapperNode [2022-11-18 19:48:43,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:48:43,860 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:48:43,860 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:48:43,860 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:48:43,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:43" (1/1) ... [2022-11-18 19:48:43,909 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:43" (1/1) ... [2022-11-18 19:48:44,017 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1795 [2022-11-18 19:48:44,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:48:44,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:48:44,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:48:44,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:48:44,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:43" (1/1) ... [2022-11-18 19:48:44,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:43" (1/1) ... [2022-11-18 19:48:44,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:43" (1/1) ... [2022-11-18 19:48:44,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:43" (1/1) ... [2022-11-18 19:48:44,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:43" (1/1) ... [2022-11-18 19:48:44,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:43" (1/1) ... [2022-11-18 19:48:44,098 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:43" (1/1) ... [2022-11-18 19:48:44,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:43" (1/1) ... [2022-11-18 19:48:44,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:48:44,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:48:44,140 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:48:44,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:48:44,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:43" (1/1) ... [2022-11-18 19:48:44,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:48:44,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:48:44,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:48:44,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:48:44,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:48:44,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:48:44,843 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:48:44,851 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:48:48,821 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:48:48,830 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:48:48,830 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:48:48,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:48:48 BoogieIcfgContainer [2022-11-18 19:48:48,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:48:48,835 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:48:48,835 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:48:48,839 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:48:48,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:48:42" (1/3) ... [2022-11-18 19:48:48,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29993d27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:48:48, skipping insertion in model container [2022-11-18 19:48:48,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:43" (2/3) ... [2022-11-18 19:48:48,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29993d27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:48:48, skipping insertion in model container [2022-11-18 19:48:48,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:48:48" (3/3) ... [2022-11-18 19:48:48,842 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p5.c [2022-11-18 19:48:48,863 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:48:48,864 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:48:48,921 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:48:48,930 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;@5d57217c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:48:48,930 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:48:48,935 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) [2022-11-18 19:48:48,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 19:48:48,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:48:48,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 19:48:48,945 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:48:48,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:48,952 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-18 19:48:48,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:48:48,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1036494230] [2022-11-18 19:48:48,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:48,969 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 [2022-11-18 19:48:48,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:48:48,979 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 19:48:48,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:48:49,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:49,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-18 19:48:49,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:48:49,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:48:49,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:48:49,718 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:48:49,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1036494230] [2022-11-18 19:48:49,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1036494230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:48:49,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:48:49,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:48:49,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627157491] [2022-11-18 19:48:49,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:48:49,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:48:49,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:48:49,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:48:49,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:48:49,764 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) [2022-11-18 19:48:50,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:48:50,202 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-18 19:48:50,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:48:50,205 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 [2022-11-18 19:48:50,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:48:50,215 INFO L225 Difference]: With dead ends: 20 [2022-11-18 19:48:50,215 INFO L226 Difference]: Without dead ends: 11 [2022-11-18 19:48:50,219 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 [2022-11-18 19:48:50,223 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:48:50,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 19:48:50,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-18 19:48:50,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-18 19:48:50,256 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) [2022-11-18 19:48:50,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-18 19:48:50,258 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-18 19:48:50,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:48:50,259 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-18 19:48:50,259 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) [2022-11-18 19:48:50,259 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-18 19:48:50,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 19:48:50,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:48:50,260 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-18 19:48:50,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:48:50,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:48:50,474 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:48:50,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:50,475 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-18 19:48:50,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:48:50,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [266504580] [2022-11-18 19:48:50,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:50,481 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 [2022-11-18 19:48:50,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:48:50,482 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 19:48:50,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:48:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:51,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 1629 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-18 19:48:51,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:48:51,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:48:51,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:48:52,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:48:52,374 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:48:52,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [266504580] [2022-11-18 19:48:52,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [266504580] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:48:52,376 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:48:52,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-18 19:48:52,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790298552] [2022-11-18 19:48:52,382 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:48:52,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:48:52,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:48:52,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:48:52,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:48:52,387 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) [2022-11-18 19:48:52,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:48:52,780 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-18 19:48:52,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:48:52,781 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 [2022-11-18 19:48:52,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:48:52,782 INFO L225 Difference]: With dead ends: 16 [2022-11-18 19:48:52,782 INFO L226 Difference]: Without dead ends: 14 [2022-11-18 19:48:52,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:48:52,784 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:48:52,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 19 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 10 Unchecked, 0.3s Time] [2022-11-18 19:48:52,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-18 19:48:52,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-18 19:48:52,789 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) [2022-11-18 19:48:52,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-18 19:48:52,790 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-18 19:48:52,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:48:52,800 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-18 19:48:52,801 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) [2022-11-18 19:48:52,802 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-18 19:48:52,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 19:48:52,803 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:48:52,803 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-18 19:48:52,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:48:53,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:48:53,020 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:48:53,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:53,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-18 19:48:53,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:48:53,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440195802] [2022-11-18 19:48:53,031 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:48:53,031 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 [2022-11-18 19:48:53,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:48:53,033 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 19:48:53,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:48:54,805 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:48:54,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:48:54,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-18 19:48:54,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:48:55,260 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:48:55,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:48:56,153 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:48:56,156 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:48:56,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [440195802] [2022-11-18 19:48:56,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [440195802] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:48:56,159 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:48:56,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:48:56,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763433210] [2022-11-18 19:48:56,160 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:48:56,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:48:56,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:48:56,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:48:56,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:48:56,168 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) [2022-11-18 19:48:56,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:48:56,990 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-18 19:48:56,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:48:56,991 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 11 [2022-11-18 19:48:56,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:48:56,991 INFO L225 Difference]: With dead ends: 19 [2022-11-18 19:48:56,991 INFO L226 Difference]: Without dead ends: 17 [2022-11-18 19:48:56,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:48:56,993 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 19:48:56,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 30 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 20 Unchecked, 0.7s Time] [2022-11-18 19:48:56,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-18 19:48:56,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-18 19:48:56,998 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) [2022-11-18 19:48:56,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-18 19:48:56,999 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-18 19:48:56,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:48:56,999 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-18 19:48:57,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) [2022-11-18 19:48:57,000 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-18 19:48:57,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 19:48:57,001 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:48:57,001 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-18 19:48:57,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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)] Forceful destruction successful, exit code 0 [2022-11-18 19:48:57,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:48:57,202 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:48:57,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:57,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-18 19:48:57,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:48:57,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [765222175] [2022-11-18 19:48:57,208 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:48:57,208 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 [2022-11-18 19:48:57,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:48:57,210 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 19:48:57,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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 (5)] Waiting until timeout for monitored process [2022-11-18 19:48:59,625 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-18 19:48:59,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:48:59,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 4595 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-18 19:48:59,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:49:00,390 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:49:00,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:49:02,299 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:49:02,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:49:02,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [765222175] [2022-11-18 19:49:02,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [765222175] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:49:02,301 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:49:02,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:49:02,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663926835] [2022-11-18 19:49:02,302 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:49:02,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:49:02,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:49:02,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:49:02,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:49:02,305 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) [2022-11-18 19:49:03,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:49:03,649 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-11-18 19:49:03,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:49:03,650 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 [2022-11-18 19:49:03,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:49:03,650 INFO L225 Difference]: With dead ends: 22 [2022-11-18 19:49:03,651 INFO L226 Difference]: Without dead ends: 20 [2022-11-18 19:49:03,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:49:03,652 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 25 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:49:03,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 26 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 30 Unchecked, 1.1s Time] [2022-11-18 19:49:03,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-18 19:49:03,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-11-18 19:49:03,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 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) [2022-11-18 19:49:03,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-18 19:49:03,659 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2022-11-18 19:49:03,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:03,659 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-18 19:49:03,660 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) [2022-11-18 19:49:03,660 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-18 19:49:03,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:49:03,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:03,661 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-18 19:49:03,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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 (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:49:03,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:49:03,883 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:49:03,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:03,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 4 times [2022-11-18 19:49:03,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:49:03,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1263249740] [2022-11-18 19:49:03,892 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 19:49:03,893 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 [2022-11-18 19:49:03,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:49:03,894 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 19:49:03,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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 (6)] Waiting until timeout for monitored process [2022-11-18 19:49:06,543 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 19:49:06,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:49:06,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 6078 conjuncts, 897 conjunts are in the unsatisfiable core [2022-11-18 19:49:06,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:49:35,722 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:49:35,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1263249740] [2022-11-18 19:49:35,723 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-18 19:49:35,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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 (6)] Ended with exit code 0 [2022-11-18 19:49:35,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:49:35,935 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Maybe an infinite loop at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-18 19:49:35,939 INFO L158 Benchmark]: Toolchain (without parser) took 53337.40ms. Allocated memory was 62.9MB in the beginning and 828.4MB in the end (delta: 765.5MB). Free memory was 40.5MB in the beginning and 409.0MB in the end (delta: -368.5MB). Peak memory consumption was 541.3MB. Max. memory is 16.1GB. [2022-11-18 19:49:35,939 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 62.9MB. Free memory was 44.4MB in the beginning and 44.4MB in the end (delta: 48.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:49:35,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1254.53ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 40.3MB in the beginning and 58.8MB in the end (delta: -18.5MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2022-11-18 19:49:35,940 INFO L158 Benchmark]: Boogie Procedure Inliner took 158.23ms. Allocated memory is still 88.1MB. Free memory was 58.8MB in the beginning and 45.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 19:49:35,940 INFO L158 Benchmark]: Boogie Preprocessor took 119.49ms. Allocated memory is still 88.1MB. Free memory was 45.8MB in the beginning and 37.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:49:35,941 INFO L158 Benchmark]: RCFGBuilder took 4693.49ms. Allocated memory was 88.1MB in the beginning and 197.1MB in the end (delta: 109.1MB). Free memory was 37.4MB in the beginning and 119.6MB in the end (delta: -82.2MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. [2022-11-18 19:49:35,941 INFO L158 Benchmark]: TraceAbstraction took 47103.43ms. Allocated memory was 197.1MB in the beginning and 828.4MB in the end (delta: 631.2MB). Free memory was 118.5MB in the beginning and 409.0MB in the end (delta: -290.5MB). Peak memory consumption was 486.8MB. Max. memory is 16.1GB. [2022-11-18 19:49:35,943 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 62.9MB. Free memory was 44.4MB in the beginning and 44.4MB in the end (delta: 48.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1254.53ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 40.3MB in the beginning and 58.8MB in the end (delta: -18.5MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 158.23ms. Allocated memory is still 88.1MB. Free memory was 58.8MB in the beginning and 45.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 119.49ms. Allocated memory is still 88.1MB. Free memory was 45.8MB in the beginning and 37.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 4693.49ms. Allocated memory was 88.1MB in the beginning and 197.1MB in the end (delta: 109.1MB). Free memory was 37.4MB in the beginning and 119.6MB in the end (delta: -82.2MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. * TraceAbstraction took 47103.43ms. Allocated memory was 197.1MB in the beginning and 828.4MB in the end (delta: 631.2MB). Free memory was 118.5MB in the beginning and 409.0MB in the end (delta: -290.5MB). Peak memory consumption was 486.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Maybe an infinite loop de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Maybe an infinite loop: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-18 19:49:35,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ab0cd7-8065-4ca5-924c-fb982c80aa6c/bin/uautomizer-TMbwUNV5ro/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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Maybe an infinite loop