./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vending.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vending.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ec3757812c1b019f09c89d48ffb6e1a791c4e1300d7182e4ab4acc854dc06a88 --- 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-38b53e6 [2022-11-25 23:54:26,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:54:26,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:54:26,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:54:26,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:54:26,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:54:26,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:54:26,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:54:26,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:54:26,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:54:26,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:54:26,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:54:26,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:54:26,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:54:26,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:54:26,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:54:26,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:54:26,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:54:26,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:54:26,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:54:26,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:54:26,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:54:26,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:54:26,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:54:26,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:54:26,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:54:26,284 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:54:26,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:54:26,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:54:26,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:54:26,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:54:26,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:54:26,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:54:26,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:54:26,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:54:26,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:54:26,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:54:26,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:54:26,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:54:26,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:54:26,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:54:26,300 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 23:54:26,342 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:54:26,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:54:26,343 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:54:26,344 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:54:26,345 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:54:26,345 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:54:26,345 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:54:26,346 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:54:26,346 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:54:26,346 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:54:26,348 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:54:26,348 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:54:26,348 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:54:26,349 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:54:26,349 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:54:26,349 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:54:26,350 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:54:26,350 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:54:26,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:54:26,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:54:26,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:54:26,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:54:26,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:54:26,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:54:26,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:54:26,353 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:54:26,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:54:26,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:54:26,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:54:26,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:54:26,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:54:26,355 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:54:26,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:54:26,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:54:26,356 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:54:26,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:54:26,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:54:26,357 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:54:26,358 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_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec3757812c1b019f09c89d48ffb6e1a791c4e1300d7182e4ab4acc854dc06a88 [2022-11-25 23:54:26,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:54:26,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:54:26,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:54:26,667 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:54:26,668 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:54:26,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vending.c [2022-11-25 23:54:29,840 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:54:30,222 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:54:30,223 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vending.c [2022-11-25 23:54:30,238 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/data/c6fac921e/9ddd417d3a814e2b8c5ea816465cb590/FLAGe31328989 [2022-11-25 23:54:30,254 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/data/c6fac921e/9ddd417d3a814e2b8c5ea816465cb590 [2022-11-25 23:54:30,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:54:30,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:54:30,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:54:30,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:54:30,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:54:30,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:54:30" (1/1) ... [2022-11-25 23:54:30,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23d9224e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:30, skipping insertion in model container [2022-11-25 23:54:30,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:54:30" (1/1) ... [2022-11-25 23:54:30,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:54:30,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:54:30,546 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vending.c[1107,1120] [2022-11-25 23:54:30,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:54:30,887 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:54:30,899 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vending.c[1107,1120] [2022-11-25 23:54:31,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:54:31,131 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:54:31,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:31 WrapperNode [2022-11-25 23:54:31,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:54:31,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:54:31,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:54:31,134 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:54:31,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:31" (1/1) ... [2022-11-25 23:54:31,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:31" (1/1) ... [2022-11-25 23:54:31,271 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1486 [2022-11-25 23:54:31,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:54:31,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:54:31,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:54:31,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:54:31,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:31" (1/1) ... [2022-11-25 23:54:31,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:31" (1/1) ... [2022-11-25 23:54:31,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:31" (1/1) ... [2022-11-25 23:54:31,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:31" (1/1) ... [2022-11-25 23:54:31,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:31" (1/1) ... [2022-11-25 23:54:31,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:31" (1/1) ... [2022-11-25 23:54:31,345 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:31" (1/1) ... [2022-11-25 23:54:31,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:31" (1/1) ... [2022-11-25 23:54:31,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:54:31,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:54:31,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:54:31,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:54:31,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:31" (1/1) ... [2022-11-25 23:54:31,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:54:31,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:54:31,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:54:31,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:54:31,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:54:31,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:54:32,026 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:54:32,049 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:54:40,360 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:54:40,390 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:54:40,390 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 23:54:40,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:54:40 BoogieIcfgContainer [2022-11-25 23:54:40,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:54:40,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:54:40,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:54:40,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:54:40,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:54:30" (1/3) ... [2022-11-25 23:54:40,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2d064a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:54:40, skipping insertion in model container [2022-11-25 23:54:40,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:31" (2/3) ... [2022-11-25 23:54:40,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2d064a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:54:40, skipping insertion in model container [2022-11-25 23:54:40,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:54:40" (3/3) ... [2022-11-25 23:54:40,408 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Vending.c [2022-11-25 23:54:40,427 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:54:40,427 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:54:40,493 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:54:40,502 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=FINITE_AUTOMATA, 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;@4d349651, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:54:40,502 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:54:40,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-25 23:54:40,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 23:54:40,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:54:40,515 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 23:54:40,516 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:54:40,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:54:40,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1797488, now seen corresponding path program 1 times [2022-11-25 23:54:40,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:54:40,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105429190] [2022-11-25 23:54:40,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:54:40,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:54:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:54:42,339 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:54:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:54:43,338 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:54:43,341 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:54:43,342 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 23:54:43,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:54:43,355 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 23:54:43,360 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:54:43,423 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-25 23:54:43,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:54:43 BoogieIcfgContainer [2022-11-25 23:54:43,444 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:54:43,445 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:54:43,445 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:54:43,446 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:54:43,446 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:54:40" (3/4) ... [2022-11-25 23:54:43,450 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:54:43,450 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:54:43,453 INFO L158 Benchmark]: Toolchain (without parser) took 13194.49ms. Allocated memory was 161.5MB in the beginning and 673.2MB in the end (delta: 511.7MB). Free memory was 128.1MB in the beginning and 559.9MB in the end (delta: -431.7MB). Peak memory consumption was 81.9MB. Max. memory is 16.1GB. [2022-11-25 23:54:43,454 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory was 66.3MB in the beginning and 66.0MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:54:43,454 INFO L158 Benchmark]: CACSL2BoogieTranslator took 873.52ms. Allocated memory is still 161.5MB. Free memory was 128.1MB in the beginning and 84.1MB in the end (delta: 44.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-25 23:54:43,456 INFO L158 Benchmark]: Boogie Procedure Inliner took 137.70ms. Allocated memory is still 161.5MB. Free memory was 84.1MB in the beginning and 71.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 23:54:43,458 INFO L158 Benchmark]: Boogie Preprocessor took 94.00ms. Allocated memory is still 161.5MB. Free memory was 71.5MB in the beginning and 65.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 23:54:43,460 INFO L158 Benchmark]: RCFGBuilder took 9026.67ms. Allocated memory was 161.5MB in the beginning and 673.2MB in the end (delta: 511.7MB). Free memory was 65.2MB in the beginning and 466.0MB in the end (delta: -400.8MB). Peak memory consumption was 359.3MB. Max. memory is 16.1GB. [2022-11-25 23:54:43,462 INFO L158 Benchmark]: TraceAbstraction took 3049.10ms. Allocated memory is still 673.2MB. Free memory was 466.0MB in the beginning and 559.9MB in the end (delta: -93.9MB). Peak memory consumption was 244.8MB. Max. memory is 16.1GB. [2022-11-25 23:54:43,463 INFO L158 Benchmark]: Witness Printer took 6.32ms. Allocated memory is still 673.2MB. Free memory is still 559.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:54:43,467 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory was 66.3MB in the beginning and 66.0MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 873.52ms. Allocated memory is still 161.5MB. Free memory was 128.1MB in the beginning and 84.1MB in the end (delta: 44.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 137.70ms. Allocated memory is still 161.5MB. Free memory was 84.1MB in the beginning and 71.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.00ms. Allocated memory is still 161.5MB. Free memory was 71.5MB in the beginning and 65.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 9026.67ms. Allocated memory was 161.5MB in the beginning and 673.2MB in the end (delta: 511.7MB). Free memory was 65.2MB in the beginning and 466.0MB in the end (delta: -400.8MB). Peak memory consumption was 359.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3049.10ms. Allocated memory is still 673.2MB. Free memory was 466.0MB in the beginning and 559.9MB in the end (delta: -93.9MB). Peak memory consumption was 244.8MB. Max. memory is 16.1GB. * Witness Printer took 6.32ms. Allocated memory is still 673.2MB. Free memory is still 559.9MB. There was no memory consumed. 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 304, overapproximation of bitwiseOr at line 259, overapproximation of bitwiseAnd at line 166. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 2); [L29] const SORT_4 msb_SORT_4 = (SORT_4)1 << (2 - 1); [L31] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 4); [L32] const SORT_9 msb_SORT_9 = (SORT_9)1 << (4 - 1); [L34] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 3); [L35] const SORT_10 msb_SORT_10 = (SORT_10)1 << (3 - 1); [L37] const SORT_10 var_11 = 0; [L38] const SORT_1 var_14 = 0; [L39] const SORT_4 var_16 = 0; [L40] const SORT_9 var_33 = 8; [L41] const SORT_9 var_40 = 7; [L42] const SORT_4 var_52 = 1; [L43] const SORT_1 var_56 = 1; [L44] const SORT_4 var_66 = 2; [L45] const SORT_9 var_72 = 0; [L46] const SORT_4 var_79 = 3; [L47] const SORT_9 var_98 = 5; [L48] const SORT_10 var_120 = 1; [L49] const SORT_9 var_122 = 15; [L50] const SORT_9 var_150 = 6; [L51] const SORT_9 var_315 = 1; [L53] SORT_1 input_2; [L54] SORT_1 input_3; [L55] SORT_4 input_5; [L56] SORT_1 input_6; [L57] SORT_1 input_7; [L58] SORT_1 input_8; [L59] SORT_4 input_103; [L60] SORT_10 input_116; [L61] SORT_10 input_117; [L62] SORT_10 input_118; [L63] SORT_10 input_119; [L64] SORT_10 input_128; [L65] SORT_10 input_135; [L66] SORT_10 input_142; [L67] SORT_10 input_143; [L68] SORT_10 input_144; [L69] SORT_10 input_149; [L70] SORT_10 input_153; [L71] SORT_10 input_159; [L72] SORT_4 input_174; [L73] SORT_4 input_175; [L74] SORT_4 input_176; [L75] SORT_4 input_177; [L76] SORT_4 input_184; [L77] SORT_4 input_187; [L78] SORT_4 input_195; [L79] SORT_4 input_202; [L80] SORT_4 input_203; [L81] SORT_4 input_204; [L82] SORT_4 input_207; [L83] SORT_4 input_209; [L84] SORT_4 input_214; [L85] SORT_4 input_223; [L86] SORT_1 input_235; [L87] SORT_1 input_236; [L88] SORT_1 input_237; [L89] SORT_1 input_238; [L90] SORT_1 input_245; [L91] SORT_1 input_248; [L92] SORT_1 input_251; [L93] SORT_1 input_261; [L94] SORT_4 input_276; [L95] SORT_4 input_280; [L96] SORT_4 input_281; [L97] SORT_4 input_282; [L98] SORT_4 input_283; [L99] SORT_4 input_287; [L100] SORT_4 input_292; [L101] SORT_4 input_301; [L102] SORT_9 input_311; [L103] SORT_9 input_312; [L104] SORT_9 input_313; [L105] SORT_9 input_314; [L106] SORT_9 input_320; [L107] SORT_9 input_326; [L108] SORT_9 input_333; [L109] SORT_9 input_334; [L110] SORT_9 input_335; [L111] SORT_9 input_338; [L112] SORT_9 input_340; [L113] SORT_9 input_344; [L114] SORT_9 input_345; [L115] SORT_9 input_349; [L116] SORT_9 input_354; [L117] SORT_9 input_372; [L118] SORT_9 input_373; [L119] SORT_9 input_374; [L120] SORT_9 input_375; [L121] SORT_9 input_380; [L122] SORT_9 input_383; [L123] SORT_9 input_391; [L124] SORT_9 input_398; [L125] SORT_9 input_399; [L126] SORT_9 input_400; [L127] SORT_9 input_403; [L128] SORT_9 input_405; [L129] SORT_9 input_410; [L130] SORT_9 input_419; [L131] SORT_9 input_430; [L132] SORT_9 input_431; [L133] SORT_9 input_432; [L134] SORT_9 input_433; [L135] SORT_9 input_438; [L136] SORT_9 input_441; [L137] SORT_9 input_444; [L138] SORT_9 input_454; [L140] SORT_10 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L141] SORT_4 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L142] SORT_1 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L143] SORT_4 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L144] SORT_9 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L145] SORT_4 state_96 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L146] SORT_9 state_111 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L147] SORT_9 state_113 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L149] SORT_10 init_13_arg_1 = var_11; [L150] state_12 = init_13_arg_1 [L151] SORT_4 init_18_arg_1 = var_16; [L152] state_17 = init_18_arg_1 [L153] SORT_1 init_23_arg_1 = var_14; [L154] state_22 = init_23_arg_1 [L155] SORT_4 init_51_arg_1 = var_16; [L156] state_50 = init_51_arg_1 [L157] SORT_9 init_74_arg_1 = var_72; [L158] state_73 = init_74_arg_1 [L159] SORT_9 init_112_arg_1 = var_72; [L160] state_111 = init_112_arg_1 [L161] SORT_9 init_114_arg_1 = var_72; [L162] state_113 = init_114_arg_1 VAL [init_112_arg_1=0, init_114_arg_1=0, init_13_arg_1=0, init_18_arg_1=0, init_23_arg_1=0, init_51_arg_1=0, init_74_arg_1=0, mask_SORT_1=1, mask_SORT_10=7, mask_SORT_4=3, mask_SORT_9=15, msb_SORT_1=1, msb_SORT_10=4, msb_SORT_4=2, msb_SORT_9=8, state_111=0, state_113=0, state_12=0, state_17=0, state_22=0, state_50=0, state_73=0, state_96=0, var_11=0, var_120=1, var_122=15, var_14=0, var_150=6, var_16=0, var_315=1, var_33=8, var_40=7, var_52=1, var_56=1, var_66=2, var_72=0, var_79=3, var_98=5] [L165] input_2 = __VERIFIER_nondet_uchar() [L166] input_2 = input_2 & mask_SORT_1 [L167] input_3 = __VERIFIER_nondet_uchar() [L168] input_5 = __VERIFIER_nondet_uchar() [L169] input_6 = __VERIFIER_nondet_uchar() [L170] input_6 = input_6 & mask_SORT_1 [L171] input_7 = __VERIFIER_nondet_uchar() [L172] input_7 = input_7 & mask_SORT_1 [L173] input_8 = __VERIFIER_nondet_uchar() [L174] input_8 = input_8 & mask_SORT_1 [L175] input_103 = __VERIFIER_nondet_uchar() [L176] input_116 = __VERIFIER_nondet_uchar() [L177] input_117 = __VERIFIER_nondet_uchar() [L178] input_118 = __VERIFIER_nondet_uchar() [L179] input_119 = __VERIFIER_nondet_uchar() [L180] input_128 = __VERIFIER_nondet_uchar() [L181] input_135 = __VERIFIER_nondet_uchar() [L182] input_142 = __VERIFIER_nondet_uchar() [L183] input_143 = __VERIFIER_nondet_uchar() [L184] input_144 = __VERIFIER_nondet_uchar() [L185] input_149 = __VERIFIER_nondet_uchar() [L186] input_153 = __VERIFIER_nondet_uchar() [L187] input_159 = __VERIFIER_nondet_uchar() [L188] input_174 = __VERIFIER_nondet_uchar() [L189] input_175 = __VERIFIER_nondet_uchar() [L190] input_176 = __VERIFIER_nondet_uchar() [L191] input_177 = __VERIFIER_nondet_uchar() [L192] input_184 = __VERIFIER_nondet_uchar() [L193] input_187 = __VERIFIER_nondet_uchar() [L194] input_195 = __VERIFIER_nondet_uchar() [L195] input_202 = __VERIFIER_nondet_uchar() [L196] input_203 = __VERIFIER_nondet_uchar() [L197] input_204 = __VERIFIER_nondet_uchar() [L198] input_207 = __VERIFIER_nondet_uchar() [L199] input_209 = __VERIFIER_nondet_uchar() [L200] input_214 = __VERIFIER_nondet_uchar() [L201] input_223 = __VERIFIER_nondet_uchar() [L202] input_235 = __VERIFIER_nondet_uchar() [L203] input_236 = __VERIFIER_nondet_uchar() [L204] input_237 = __VERIFIER_nondet_uchar() [L205] input_238 = __VERIFIER_nondet_uchar() [L206] input_245 = __VERIFIER_nondet_uchar() [L207] input_248 = __VERIFIER_nondet_uchar() [L208] input_251 = __VERIFIER_nondet_uchar() [L209] input_261 = __VERIFIER_nondet_uchar() [L210] input_276 = __VERIFIER_nondet_uchar() [L211] input_280 = __VERIFIER_nondet_uchar() [L212] input_281 = __VERIFIER_nondet_uchar() [L213] input_282 = __VERIFIER_nondet_uchar() [L214] input_283 = __VERIFIER_nondet_uchar() [L215] input_287 = __VERIFIER_nondet_uchar() [L216] input_292 = __VERIFIER_nondet_uchar() [L217] input_301 = __VERIFIER_nondet_uchar() [L218] input_311 = __VERIFIER_nondet_uchar() [L219] input_312 = __VERIFIER_nondet_uchar() [L220] input_313 = __VERIFIER_nondet_uchar() [L221] input_314 = __VERIFIER_nondet_uchar() [L222] input_320 = __VERIFIER_nondet_uchar() [L223] input_326 = __VERIFIER_nondet_uchar() [L224] input_333 = __VERIFIER_nondet_uchar() [L225] input_334 = __VERIFIER_nondet_uchar() [L226] input_335 = __VERIFIER_nondet_uchar() [L227] input_338 = __VERIFIER_nondet_uchar() [L228] input_340 = __VERIFIER_nondet_uchar() [L229] input_344 = __VERIFIER_nondet_uchar() [L230] input_345 = __VERIFIER_nondet_uchar() [L231] input_349 = __VERIFIER_nondet_uchar() [L232] input_354 = __VERIFIER_nondet_uchar() [L233] input_372 = __VERIFIER_nondet_uchar() [L234] input_373 = __VERIFIER_nondet_uchar() [L235] input_374 = __VERIFIER_nondet_uchar() [L236] input_375 = __VERIFIER_nondet_uchar() [L237] input_380 = __VERIFIER_nondet_uchar() [L238] input_383 = __VERIFIER_nondet_uchar() [L239] input_391 = __VERIFIER_nondet_uchar() [L240] input_398 = __VERIFIER_nondet_uchar() [L241] input_399 = __VERIFIER_nondet_uchar() [L242] input_400 = __VERIFIER_nondet_uchar() [L243] input_403 = __VERIFIER_nondet_uchar() [L244] input_405 = __VERIFIER_nondet_uchar() [L245] input_410 = __VERIFIER_nondet_uchar() [L246] input_419 = __VERIFIER_nondet_uchar() [L247] input_430 = __VERIFIER_nondet_uchar() [L248] input_431 = __VERIFIER_nondet_uchar() [L249] input_432 = __VERIFIER_nondet_uchar() [L250] input_433 = __VERIFIER_nondet_uchar() [L251] input_438 = __VERIFIER_nondet_uchar() [L252] input_441 = __VERIFIER_nondet_uchar() [L253] input_444 = __VERIFIER_nondet_uchar() [L254] input_454 = __VERIFIER_nondet_uchar() [L257] SORT_1 var_15_arg_0 = var_14; [L258] SORT_10 var_15_arg_1 = state_12; [L259] SORT_9 var_15 = ((SORT_9)var_15_arg_0 << 3) | var_15_arg_1; [L260] SORT_4 var_19_arg_0 = state_17; [L261] SORT_1 var_19_arg_1 = var_14; [L262] SORT_10 var_19 = ((SORT_10)var_19_arg_0 << 1) | var_19_arg_1; [L263] var_19 = var_19 & mask_SORT_10 [L264] SORT_1 var_20_arg_0 = var_14; [L265] SORT_10 var_20_arg_1 = var_19; [L266] SORT_9 var_20 = ((SORT_9)var_20_arg_0 << 3) | var_20_arg_1; [L267] SORT_9 var_21_arg_0 = var_15; [L268] SORT_9 var_21_arg_1 = var_20; [L269] SORT_9 var_21 = var_21_arg_0 + var_21_arg_1; [L270] SORT_1 var_24_arg_0 = var_14; [L271] SORT_1 var_24_arg_1 = state_22; [L272] SORT_4 var_24 = ((SORT_4)var_24_arg_0 << 1) | var_24_arg_1; [L273] var_24 = var_24 & mask_SORT_4 [L274] SORT_1 var_25_arg_0 = state_22; [L275] SORT_4 var_25_arg_1 = var_24; [L276] SORT_10 var_25 = ((SORT_10)var_25_arg_0 << 2) | var_25_arg_1; [L277] var_25 = var_25 & mask_SORT_10 [L278] SORT_1 var_26_arg_0 = var_14; [L279] SORT_10 var_26_arg_1 = var_25; [L280] SORT_9 var_26 = ((SORT_9)var_26_arg_0 << 3) | var_26_arg_1; [L281] SORT_9 var_27_arg_0 = var_21; [L282] SORT_9 var_27_arg_1 = var_26; [L283] SORT_9 var_27 = var_27_arg_0 + var_27_arg_1; [L284] var_27 = var_27 & mask_SORT_9 [L285] SORT_9 var_28_arg_0 = var_27; [L286] SORT_1 var_28 = var_28_arg_0 >> 3; [L287] var_28 = var_28 & mask_SORT_1 [L288] SORT_1 var_29_arg_0 = var_28; [L289] SORT_1 var_29_arg_1 = var_14; [L290] SORT_1 var_29 = var_29_arg_0 == var_29_arg_1; [L291] SORT_9 var_30_arg_0 = var_27; [L292] SORT_4 var_30 = var_30_arg_0 >> 1; [L293] var_30 = var_30 & mask_SORT_4 [L294] SORT_4 var_31_arg_0 = var_30; [L295] SORT_4 var_31_arg_1 = var_16; [L296] SORT_1 var_31 = var_31_arg_0 == var_31_arg_1; [L297] SORT_1 var_32_arg_0 = var_29; [L298] SORT_1 var_32_arg_1 = var_31; [L299] SORT_1 var_32 = var_32_arg_0 | var_32_arg_1; [L300] SORT_9 var_34_arg_0 = var_27; [L301] SORT_9 var_34_arg_1 = var_33; [L302] SORT_1 var_34 = var_34_arg_0 == var_34_arg_1; [L303] SORT_1 var_35_arg_0 = var_34; [L304] SORT_1 var_35 = ~var_35_arg_0; [L305] SORT_10 var_36_arg_0 = state_12; [L306] SORT_10 var_36_arg_1 = var_11; [L307] SORT_1 var_36 = var_36_arg_0 == var_36_arg_1; [L308] SORT_1 var_37_arg_0 = var_36; [L309] SORT_1 var_37 = ~var_37_arg_0; [L310] SORT_1 var_38_arg_0 = var_35; [L311] SORT_1 var_38_arg_1 = var_37; [L312] SORT_1 var_38 = var_38_arg_0 | var_38_arg_1; [L313] SORT_1 var_39_arg_0 = var_32; [L314] SORT_1 var_39_arg_1 = var_38; [L315] SORT_1 var_39 = var_39_arg_0 & var_39_arg_1; [L316] SORT_9 var_41_arg_0 = var_27; [L317] SORT_9 var_41_arg_1 = var_40; [L318] SORT_1 var_41 = var_41_arg_0 == var_41_arg_1; [L319] SORT_1 var_42_arg_0 = var_41; [L320] SORT_1 var_42 = ~var_42_arg_0; [L321] SORT_10 var_43_arg_0 = state_12; [L322] SORT_10 var_43_arg_1 = var_11; [L323] SORT_1 var_43 = var_43_arg_0 == var_43_arg_1; [L324] SORT_1 var_44_arg_0 = var_43; [L325] SORT_1 var_44 = ~var_44_arg_0; [L326] SORT_4 var_45_arg_0 = state_17; [L327] SORT_4 var_45_arg_1 = var_16; [L328] SORT_1 var_45 = var_45_arg_0 == var_45_arg_1; [L329] SORT_1 var_46_arg_0 = var_45; [L330] SORT_1 var_46 = ~var_46_arg_0; [L331] SORT_1 var_47_arg_0 = var_44; [L332] SORT_1 var_47_arg_1 = var_46; [L333] SORT_1 var_47 = var_47_arg_0 | var_47_arg_1; [L334] SORT_1 var_48_arg_0 = var_42; [L335] SORT_1 var_48_arg_1 = var_47; [L336] SORT_1 var_48 = var_48_arg_0 | var_48_arg_1; [L337] SORT_1 var_49_arg_0 = var_39; [L338] SORT_1 var_49_arg_1 = var_48; [L339] SORT_1 var_49 = var_49_arg_0 & var_49_arg_1; [L340] SORT_4 var_53_arg_0 = state_50; [L341] SORT_4 var_53_arg_1 = var_52; [L342] SORT_1 var_53 = var_53_arg_0 == var_53_arg_1; [L343] SORT_9 var_54_arg_0 = var_27; [L344] SORT_9 var_54_arg_1 = var_40; [L345] SORT_1 var_54 = var_54_arg_0 == var_54_arg_1; [L346] SORT_1 var_55_arg_0 = var_53; [L347] SORT_1 var_55_arg_1 = var_54; [L348] SORT_1 var_55 = var_55_arg_0 & var_55_arg_1; [L349] SORT_1 var_57_arg_0 = var_28; [L350] SORT_1 var_57_arg_1 = var_56; [L351] SORT_1 var_57 = var_57_arg_0 == var_57_arg_1; [L352] SORT_1 var_58_arg_0 = var_55; [L353] SORT_1 var_58_arg_1 = var_57; [L354] SORT_1 var_58 = var_58_arg_0 | var_58_arg_1; [L355] SORT_1 var_59_arg_0 = var_58; [L356] SORT_1 var_59 = ~var_59_arg_0; [L357] SORT_10 var_60_arg_0 = state_12; [L358] SORT_10 var_60_arg_1 = var_11; [L359] SORT_1 var_60 = var_60_arg_0 == var_60_arg_1; [L360] SORT_4 var_61_arg_0 = state_17; [L361] SORT_4 var_61_arg_1 = var_16; [L362] SORT_1 var_61 = var_61_arg_0 == var_61_arg_1; [L363] SORT_1 var_62_arg_0 = var_60; [L364] SORT_1 var_62_arg_1 = var_61; [L365] SORT_1 var_62 = var_62_arg_0 & var_62_arg_1; [L366] SORT_1 var_63_arg_0 = var_62; [L367] SORT_1 var_63 = ~var_63_arg_0; [L368] SORT_1 var_64_arg_0 = var_59; [L369] SORT_1 var_64_arg_1 = var_63; [L370] SORT_1 var_64 = var_64_arg_0 | var_64_arg_1; [L371] SORT_1 var_65_arg_0 = var_49; [L372] SORT_1 var_65_arg_1 = var_64; [L373] SORT_1 var_65 = var_65_arg_0 & var_65_arg_1; [L374] SORT_4 var_67_arg_0 = state_50; [L375] SORT_4 var_67_arg_1 = var_66; [L376] SORT_1 var_67 = var_67_arg_0 == var_67_arg_1; [L377] SORT_1 var_68_arg_0 = var_67; [L378] SORT_1 var_68 = ~var_68_arg_0; [L379] SORT_1 var_69_arg_0 = state_22; [L380] SORT_1 var_69_arg_1 = var_14; [L381] SORT_1 var_69 = var_69_arg_0 == var_69_arg_1; [L382] SORT_10 var_70_arg_0 = state_12; [L383] SORT_10 var_70_arg_1 = var_11; [L384] SORT_1 var_70 = var_70_arg_0 == var_70_arg_1; [L385] SORT_1 var_71_arg_0 = var_69; [L386] SORT_1 var_71_arg_1 = var_70; [L387] SORT_1 var_71 = var_71_arg_0 & var_71_arg_1; [L388] SORT_9 var_75_arg_0 = state_73; [L389] SORT_9 var_75_arg_1 = var_72; [L390] SORT_1 var_75 = var_75_arg_0 == var_75_arg_1; [L391] SORT_1 var_76_arg_0 = var_71; [L392] SORT_1 var_76_arg_1 = var_75; [L393] SORT_1 var_76 = var_76_arg_0 & var_76_arg_1; [L394] SORT_1 var_77_arg_0 = var_68; [L395] SORT_1 var_77_arg_1 = var_76; [L396] SORT_1 var_77 = var_77_arg_0 | var_77_arg_1; [L397] SORT_1 var_78_arg_0 = var_65; [L398] SORT_1 var_78_arg_1 = var_77; [L399] SORT_1 var_78 = var_78_arg_0 & var_78_arg_1; [L400] SORT_4 var_80_arg_0 = state_50; [L401] SORT_4 var_80_arg_1 = var_79; [L402] SORT_1 var_80 = var_80_arg_0 == var_80_arg_1; [L403] SORT_1 var_81_arg_0 = var_80; [L404] SORT_1 var_81 = ~var_81_arg_0; [L405] SORT_9 var_82_arg_0 = var_27; [L406] SORT_4 var_82 = var_82_arg_0 >> 2; [L407] var_82 = var_82 & mask_SORT_4 [L408] SORT_4 var_83_arg_0 = var_82; [L409] SORT_4 var_83_arg_1 = var_52; [L410] SORT_1 var_83 = var_83_arg_0 == var_83_arg_1; [L411] SORT_9 var_84_arg_0 = var_27; [L412] SORT_4 var_84 = var_84_arg_0 >> 0; [L413] var_84 = var_84 & mask_SORT_4 [L414] SORT_4 var_85_arg_0 = var_84; [L415] SORT_4 var_85_arg_1 = var_52; [L416] SORT_1 var_85 = var_85_arg_0 == var_85_arg_1; [L417] SORT_4 var_86_arg_0 = var_84; [L418] SORT_4 var_86_arg_1 = var_66; [L419] SORT_1 var_86 = var_86_arg_0 == var_86_arg_1; [L420] SORT_1 var_87_arg_0 = var_85; [L421] SORT_1 var_87_arg_1 = var_86; [L422] SORT_1 var_87 = var_87_arg_0 | var_87_arg_1; [L423] SORT_1 var_88_arg_0 = var_83; [L424] SORT_1 var_88_arg_1 = var_87; [L425] SORT_1 var_88 = var_88_arg_0 & var_88_arg_1; [L426] SORT_1 var_89_arg_0 = var_81; [L427] SORT_1 var_89_arg_1 = var_88; [L428] SORT_1 var_89 = var_89_arg_0 | var_89_arg_1; [L429] SORT_1 var_90_arg_0 = var_78; [L430] SORT_1 var_90_arg_1 = var_89; [L431] SORT_1 var_90 = var_90_arg_0 & var_90_arg_1; [L432] SORT_1 var_93_arg_0 = var_90; [L433] SORT_1 var_93 = ~var_93_arg_0; [L434] SORT_1 var_94_arg_0 = var_56; [L435] SORT_1 var_94_arg_1 = var_93; [L436] SORT_1 var_94 = var_94_arg_0 & var_94_arg_1; [L437] var_94 = var_94 & mask_SORT_1 [L438] SORT_1 bad_95_arg_0 = var_94; [L439] CALL __VERIFIER_assert(!(bad_95_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, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 23:54:43,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/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_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vending.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ec3757812c1b019f09c89d48ffb6e1a791c4e1300d7182e4ab4acc854dc06a88 --- 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-38b53e6 [2022-11-25 23:54:46,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:54:46,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:54:46,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:54:46,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:54:46,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:54:46,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:54:46,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:54:46,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:54:46,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:54:46,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:54:46,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:54:46,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:54:46,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:54:46,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:54:46,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:54:46,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:54:46,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:54:46,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:54:46,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:54:46,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:54:46,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:54:46,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:54:46,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:54:46,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:54:46,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:54:46,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:54:46,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:54:46,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:54:46,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:54:46,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:54:46,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:54:46,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:54:46,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:54:46,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:54:46,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:54:46,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:54:46,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:54:46,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:54:46,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:54:46,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:54:46,290 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-25 23:54:46,330 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:54:46,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:54:46,332 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:54:46,332 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:54:46,333 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:54:46,333 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:54:46,334 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:54:46,334 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:54:46,335 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:54:46,335 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:54:46,336 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:54:46,336 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:54:46,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:54:46,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:54:46,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:54:46,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:54:46,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:54:46,339 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:54:46,339 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 23:54:46,340 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 23:54:46,340 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:54:46,340 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:54:46,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:54:46,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:54:46,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 23:54:46,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:54:46,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:54:46,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:54:46,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:54:46,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:54:46,343 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 23:54:46,344 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 23:54:46,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:54:46,345 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:54:46,345 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 23:54:46,345 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_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec3757812c1b019f09c89d48ffb6e1a791c4e1300d7182e4ab4acc854dc06a88 [2022-11-25 23:54:46,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:54:46,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:54:46,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:54:46,845 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:54:46,846 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:54:46,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vending.c [2022-11-25 23:54:49,997 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:54:50,301 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:54:50,301 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vending.c [2022-11-25 23:54:50,318 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/data/182bc2a87/41de280383264006b284ac47d03b202f/FLAG1114bc997 [2022-11-25 23:54:50,352 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/data/182bc2a87/41de280383264006b284ac47d03b202f [2022-11-25 23:54:50,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:54:50,355 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:54:50,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:54:50,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:54:50,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:54:50,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:54:50" (1/1) ... [2022-11-25 23:54:50,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5648e376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:50, skipping insertion in model container [2022-11-25 23:54:50,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:54:50" (1/1) ... [2022-11-25 23:54:50,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:54:50,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:54:50,672 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vending.c[1107,1120] [2022-11-25 23:54:51,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:54:51,051 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:54:51,064 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vending.c[1107,1120] [2022-11-25 23:54:51,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:54:51,217 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:54:51,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:51 WrapperNode [2022-11-25 23:54:51,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:54:51,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:54:51,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:54:51,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:54:51,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:51" (1/1) ... [2022-11-25 23:54:51,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:51" (1/1) ... [2022-11-25 23:54:51,388 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1486 [2022-11-25 23:54:51,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:54:51,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:54:51,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:54:51,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:54:51,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:51" (1/1) ... [2022-11-25 23:54:51,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:51" (1/1) ... [2022-11-25 23:54:51,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:51" (1/1) ... [2022-11-25 23:54:51,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:51" (1/1) ... [2022-11-25 23:54:51,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:51" (1/1) ... [2022-11-25 23:54:51,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:51" (1/1) ... [2022-11-25 23:54:51,461 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:51" (1/1) ... [2022-11-25 23:54:51,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:51" (1/1) ... [2022-11-25 23:54:51,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:54:51,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:54:51,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:54:51,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:54:51,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:51" (1/1) ... [2022-11-25 23:54:51,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:54:51,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:54:51,513 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:54:51,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:54:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:54:51,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:54:52,081 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:54:52,083 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:54:53,949 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:54:53,959 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:54:53,959 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 23:54:53,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:54:53 BoogieIcfgContainer [2022-11-25 23:54:53,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:54:53,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:54:53,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:54:53,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:54:53,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:54:50" (1/3) ... [2022-11-25 23:54:53,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@81c5ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:54:53, skipping insertion in model container [2022-11-25 23:54:53,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:54:51" (2/3) ... [2022-11-25 23:54:53,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@81c5ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:54:53, skipping insertion in model container [2022-11-25 23:54:53,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:54:53" (3/3) ... [2022-11-25 23:54:53,974 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Vending.c [2022-11-25 23:54:53,994 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:54:53,994 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:54:54,056 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:54:54,064 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=FINITE_AUTOMATA, 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;@6f679f7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:54:54,065 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:54:54,069 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) [2022-11-25 23:54:54,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 23:54:54,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:54:54,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 23:54:54,077 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:54:54,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:54:54,085 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 23:54:54,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:54:54,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1832696234] [2022-11-25 23:54:54,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:54:54,103 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 [2022-11-25 23:54:54,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:54:54,111 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/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) [2022-11-25 23:54:54,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:54:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:54:54,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 114 conjunts are in the unsatisfiable core [2022-11-25 23:54:54,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:54:55,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:54:55,906 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:54:55,907 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:54:55,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1832696234] [2022-11-25 23:54:55,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1832696234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:54:55,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:54:55,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:54:55,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059931701] [2022-11-25 23:54:55,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:54:55,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:54:55,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:54:55,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:54:55,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:54:55,951 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) [2022-11-25 23:54:56,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:54:56,223 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-25 23:54:56,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:54:56,226 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 [2022-11-25 23:54:56,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:54:56,236 INFO L225 Difference]: With dead ends: 20 [2022-11-25 23:54:56,236 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 23:54:56,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:54:56,244 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:54:56,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:54:56,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 23:54:56,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-25 23:54:56,283 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) [2022-11-25 23:54:56,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-25 23:54:56,285 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-25 23:54:56,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:54:56,286 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-25 23:54:56,286 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) [2022-11-25 23:54:56,287 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-25 23:54:56,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 23:54:56,287 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:54:56,288 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 23:54:56,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:54:56,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:54:56,502 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:54:56,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:54:56,502 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-25 23:54:56,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:54:56,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1164447435] [2022-11-25 23:54:56,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:54:56,506 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 [2022-11-25 23:54:56,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:54:56,507 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/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) [2022-11-25 23:54:56,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf5fb8a-49b9-4fe6-a4ca-16129825711b/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:54:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:54:57,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 1521 conjuncts, 335 conjunts are in the unsatisfiable core [2022-11-25 23:54:57,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:55:05,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:55:05,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:02:29,130 WARN L233 SmtUtils]: Spent 6.86m on a formula simplification. DAG size of input: 3179 DAG size of output: 438 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)