./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_spinner32.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_spinner32.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW --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 c936dc57c77d69420d30086d462b35a7caa8e1e68cd109cc22e0b9f8298d81b3 --- 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-4e7fbc6 [2022-11-23 14:04:34,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:04:34,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:04:34,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:04:34,191 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:04:34,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:04:34,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:04:34,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:04:34,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:04:34,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:04:34,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:04:34,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:04:34,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:04:34,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:04:34,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:04:34,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:04:34,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:04:34,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:04:34,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:04:34,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:04:34,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:04:34,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:04:34,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:04:34,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:04:34,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:04:34,244 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:04:34,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:04:34,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:04:34,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:04:34,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:04:34,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:04:34,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:04:34,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:04:34,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:04:34,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:04:34,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:04:34,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:04:34,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:04:34,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:04:34,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:04:34,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:04:34,260 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:04:34,297 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:04:34,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:04:34,298 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:04:34,298 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:04:34,299 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:04:34,299 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:04:34,300 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:04:34,300 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:04:34,300 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:04:34,300 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:04:34,301 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:04:34,301 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:04:34,301 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:04:34,302 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:04:34,302 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:04:34,302 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:04:34,302 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:04:34,302 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:04:34,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:04:34,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:04:34,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:04:34,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:04:34,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:04:34,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:04:34,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:04:34,304 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:04:34,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:04:34,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:04:34,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:04:34,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:04:34,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:04:34,306 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:04:34,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:04:34,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:04:34,306 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:04:34,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:04:34,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:04:34,307 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:04:34,307 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_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c936dc57c77d69420d30086d462b35a7caa8e1e68cd109cc22e0b9f8298d81b3 [2022-11-23 14:04:34,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:04:34,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:04:34,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:04:34,626 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:04:34,627 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:04:34,628 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_spinner32.c [2022-11-23 14:04:37,694 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:04:37,924 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:04:37,924 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_spinner32.c [2022-11-23 14:04:37,947 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/data/50188d41e/168816882c9b474885b002219b1ceb47/FLAG468c3f267 [2022-11-23 14:04:37,967 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/data/50188d41e/168816882c9b474885b002219b1ceb47 [2022-11-23 14:04:37,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:04:37,973 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:04:37,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:04:37,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:04:37,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:04:37,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:37" (1/1) ... [2022-11-23 14:04:37,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6018a8cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:37, skipping insertion in model container [2022-11-23 14:04:37,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:37" (1/1) ... [2022-11-23 14:04:37,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:04:38,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:04:38,156 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_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_spinner32.c[1107,1120] [2022-11-23 14:04:38,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:04:38,243 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:04:38,253 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_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_spinner32.c[1107,1120] [2022-11-23 14:04:38,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:04:38,344 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:04:38,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38 WrapperNode [2022-11-23 14:04:38,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:04:38,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:04:38,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:04:38,347 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:04:38,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (1/1) ... [2022-11-23 14:04:38,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (1/1) ... [2022-11-23 14:04:38,440 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 215 [2022-11-23 14:04:38,440 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:04:38,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:04:38,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:04:38,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:04:38,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (1/1) ... [2022-11-23 14:04:38,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (1/1) ... [2022-11-23 14:04:38,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (1/1) ... [2022-11-23 14:04:38,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (1/1) ... [2022-11-23 14:04:38,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (1/1) ... [2022-11-23 14:04:38,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (1/1) ... [2022-11-23 14:04:38,479 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (1/1) ... [2022-11-23 14:04:38,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (1/1) ... [2022-11-23 14:04:38,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:04:38,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:04:38,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:04:38,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:04:38,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (1/1) ... [2022-11-23 14:04:38,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:04:38,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:04:38,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:04:38,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:04:38,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:04:38,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:04:38,737 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:04:38,739 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:04:41,533 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:04:41,551 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:04:41,551 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:04:41,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:41 BoogieIcfgContainer [2022-11-23 14:04:41,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:04:41,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:04:41,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:04:41,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:04:41,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:04:37" (1/3) ... [2022-11-23 14:04:41,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a8ee6a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:04:41, skipping insertion in model container [2022-11-23 14:04:41,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (2/3) ... [2022-11-23 14:04:41,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a8ee6a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:04:41, skipping insertion in model container [2022-11-23 14:04:41,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:41" (3/3) ... [2022-11-23 14:04:41,563 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_spinner32.c [2022-11-23 14:04:41,582 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:04:41,582 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:04:41,645 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:04:41,653 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;@799440a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:04:41,654 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:04:41,660 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) [2022-11-23 14:04:41,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 14:04:41,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:04:41,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 14:04:41,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:04:41,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:04:41,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1797488, now seen corresponding path program 1 times [2022-11-23 14:04:41,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:04:41,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21105578] [2022-11-23 14:04:41,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:04:41,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:04:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:04:41,837 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:04:41,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:04:41,906 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 14:04:41,909 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:04:41,910 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:04:41,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:04:41,919 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 14:04:41,922 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:04:41,947 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 14:04:41,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:04:41 BoogieIcfgContainer [2022-11-23 14:04:41,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:04:41,955 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:04:41,955 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:04:41,955 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:04:41,956 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:41" (3/4) ... [2022-11-23 14:04:41,959 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 14:04:41,959 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:04:41,961 INFO L158 Benchmark]: Toolchain (without parser) took 3986.75ms. Allocated memory was 130.0MB in the beginning and 190.8MB in the end (delta: 60.8MB). Free memory was 85.2MB in the beginning and 106.5MB in the end (delta: -21.3MB). Peak memory consumption was 41.5MB. Max. memory is 16.1GB. [2022-11-23 14:04:41,961 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 130.0MB. Free memory was 103.5MB in the beginning and 103.5MB in the end (delta: 35.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:04:41,962 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.00ms. Allocated memory is still 130.0MB. Free memory was 85.2MB in the beginning and 70.2MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 14:04:41,962 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.53ms. Allocated memory is still 130.0MB. Free memory was 70.2MB in the beginning and 66.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:04:41,963 INFO L158 Benchmark]: Boogie Preprocessor took 42.85ms. Allocated memory is still 130.0MB. Free memory was 66.9MB in the beginning and 65.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:04:41,964 INFO L158 Benchmark]: RCFGBuilder took 3069.36ms. Allocated memory was 130.0MB in the beginning and 190.8MB in the end (delta: 60.8MB). Free memory was 65.1MB in the beginning and 126.4MB in the end (delta: -61.2MB). Peak memory consumption was 44.4MB. Max. memory is 16.1GB. [2022-11-23 14:04:41,964 INFO L158 Benchmark]: TraceAbstraction took 397.89ms. Allocated memory is still 190.8MB. Free memory was 126.4MB in the beginning and 106.5MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-23 14:04:41,965 INFO L158 Benchmark]: Witness Printer took 4.62ms. Allocated memory is still 190.8MB. Free memory is still 106.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:04:41,968 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 130.0MB. Free memory was 103.5MB in the beginning and 103.5MB in the end (delta: 35.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 370.00ms. Allocated memory is still 130.0MB. Free memory was 85.2MB in the beginning and 70.2MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.53ms. Allocated memory is still 130.0MB. Free memory was 70.2MB in the beginning and 66.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.85ms. Allocated memory is still 130.0MB. Free memory was 66.9MB in the beginning and 65.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 3069.36ms. Allocated memory was 130.0MB in the beginning and 190.8MB in the end (delta: 60.8MB). Free memory was 65.1MB in the beginning and 126.4MB in the end (delta: -61.2MB). Peak memory consumption was 44.4MB. Max. memory is 16.1GB. * TraceAbstraction took 397.89ms. Allocated memory is still 190.8MB. Free memory was 126.4MB in the beginning and 106.5MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 4.62ms. Allocated memory is still 190.8MB. Free memory is still 106.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 100, overapproximation of bitwiseAnd at line 93. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 5); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (5 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L31] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 32); [L32] const SORT_5 msb_SORT_5 = (SORT_5)1 << (32 - 1); [L34] const SORT_25 mask_SORT_25 = (SORT_25)-1 >> (sizeof(SORT_25) * 8 - 31); [L35] const SORT_25 msb_SORT_25 = (SORT_25)1 << (31 - 1); [L37] const SORT_35 mask_SORT_35 = (SORT_35)-1 >> (sizeof(SORT_35) * 8 - 30); [L38] const SORT_35 msb_SORT_35 = (SORT_35)1 << (30 - 1); [L40] const SORT_37 mask_SORT_37 = (SORT_37)-1 >> (sizeof(SORT_37) * 8 - 29); [L41] const SORT_37 msb_SORT_37 = (SORT_37)1 << (29 - 1); [L43] const SORT_43 mask_SORT_43 = (SORT_43)-1 >> (sizeof(SORT_43) * 8 - 2); [L44] const SORT_43 msb_SORT_43 = (SORT_43)1 << (2 - 1); [L46] const SORT_49 mask_SORT_49 = (SORT_49)-1 >> (sizeof(SORT_49) * 8 - 28); [L47] const SORT_49 msb_SORT_49 = (SORT_49)1 << (28 - 1); [L49] const SORT_51 mask_SORT_51 = (SORT_51)-1 >> (sizeof(SORT_51) * 8 - 26); [L50] const SORT_51 msb_SORT_51 = (SORT_51)1 << (26 - 1); [L52] const SORT_57 mask_SORT_57 = (SORT_57)-1 >> (sizeof(SORT_57) * 8 - 4); [L53] const SORT_57 msb_SORT_57 = (SORT_57)1 << (4 - 1); [L55] const SORT_63 mask_SORT_63 = (SORT_63)-1 >> (sizeof(SORT_63) * 8 - 24); [L56] const SORT_63 msb_SORT_63 = (SORT_63)1 << (24 - 1); [L58] const SORT_65 mask_SORT_65 = (SORT_65)-1 >> (sizeof(SORT_65) * 8 - 20); [L59] const SORT_65 msb_SORT_65 = (SORT_65)1 << (20 - 1); [L61] const SORT_71 mask_SORT_71 = (SORT_71)-1 >> (sizeof(SORT_71) * 8 - 8); [L62] const SORT_71 msb_SORT_71 = (SORT_71)1 << (8 - 1); [L64] const SORT_77 mask_SORT_77 = (SORT_77)-1 >> (sizeof(SORT_77) * 8 - 16); [L65] const SORT_77 msb_SORT_77 = (SORT_77)1 << (16 - 1); [L67] const SORT_5 var_8 = 0; [L68] const SORT_5 var_11 = 2863311530; [L69] const SORT_3 var_15 = 1; [L70] const SORT_3 var_22 = 0; [L72] SORT_1 input_2; [L73] SORT_3 input_4; [L74] SORT_5 input_6; [L75] SORT_3 input_7; [L77] SORT_5 state_9 = __VERIFIER_nondet_uint() & mask_SORT_5; [L78] SORT_5 state_19 = __VERIFIER_nondet_uint() & mask_SORT_5; [L79] SORT_3 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L81] SORT_5 init_10_arg_1 = var_8; [L82] state_9 = init_10_arg_1 [L83] SORT_5 init_20_arg_1 = var_8; [L84] state_19 = init_20_arg_1 [L85] SORT_3 init_24_arg_1 = var_22; [L86] state_23 = init_24_arg_1 VAL [init_10_arg_1=0, init_20_arg_1=0, init_24_arg_1=0, mask_SORT_1=31, mask_SORT_25=4294967295, mask_SORT_3=1, mask_SORT_35=4294967295, mask_SORT_37=4294967295, mask_SORT_43=3, mask_SORT_49=4294967295, mask_SORT_5=4294967295, mask_SORT_51=4294967295, mask_SORT_57=15, mask_SORT_63=4294967295, mask_SORT_65=4294967295, mask_SORT_71=255, mask_SORT_77=65535, msb_SORT_1=16, msb_SORT_25=1073741824, msb_SORT_3=1, msb_SORT_35=536870912, msb_SORT_37=268435456, msb_SORT_43=2, msb_SORT_49=134217728, msb_SORT_5=2147483648, msb_SORT_51=33554432, msb_SORT_57=8, msb_SORT_63=8388608, msb_SORT_65=524288, msb_SORT_71=128, msb_SORT_77=32768, state_19=0, state_23=0, state_9=0, var_11=2863311530, var_15=1, var_22=0, var_8=0] [L89] input_2 = __VERIFIER_nondet_uchar() [L90] input_4 = __VERIFIER_nondet_uchar() [L91] input_6 = __VERIFIER_nondet_uint() [L92] input_7 = __VERIFIER_nondet_uchar() [L93] input_7 = input_7 & mask_SORT_3 [L96] SORT_5 var_12_arg_0 = state_9; [L97] SORT_5 var_12_arg_1 = var_11; [L98] SORT_3 var_12 = var_12_arg_0 != var_12_arg_1; [L99] SORT_3 var_16_arg_0 = var_12; [L100] SORT_3 var_16 = ~var_16_arg_0; [L101] SORT_3 var_17_arg_0 = var_15; [L102] SORT_3 var_17_arg_1 = var_16; [L103] SORT_3 var_17 = var_17_arg_0 & var_17_arg_1; [L104] var_17 = var_17 & mask_SORT_3 [L105] SORT_3 bad_18_arg_0 = var_17; [L106] CALL __VERIFIER_assert(!(bad_18_arg_0)) [L20] COND TRUE !(cond) VAL [cond=0, unknown-#in~cond-unknown=0] [L20] reach_error() VAL [cond=0, unknown-#in~cond-unknown=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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, 0.1s 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 [2022-11-23 14:04:41,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_spinner32.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW --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 c936dc57c77d69420d30086d462b35a7caa8e1e68cd109cc22e0b9f8298d81b3 --- 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-4e7fbc6 [2022-11-23 14:04:44,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:04:44,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:04:44,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:04:44,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:04:44,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:04:44,516 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:04:44,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:04:44,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:04:44,531 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:04:44,532 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:04:44,535 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:04:44,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:04:44,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:04:44,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:04:44,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:04:44,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:04:44,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:04:44,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:04:44,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:04:44,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:04:44,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:04:44,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:04:44,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:04:44,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:04:44,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:04:44,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:04:44,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:04:44,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:04:44,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:04:44,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:04:44,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:04:44,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:04:44,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:04:44,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:04:44,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:04:44,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:04:44,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:04:44,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:04:44,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:04:44,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:04:44,599 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-23 14:04:44,627 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:04:44,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:04:44,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:04:44,628 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:04:44,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:04:44,629 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:04:44,629 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:04:44,629 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:04:44,629 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:04:44,629 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:04:44,630 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:04:44,630 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:04:44,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:04:44,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:04:44,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:04:44,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:04:44,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:04:44,632 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 14:04:44,632 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 14:04:44,632 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 14:04:44,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:04:44,632 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:04:44,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:04:44,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:04:44,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 14:04:44,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:04:44,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:04:44,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:04:44,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:04:44,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:04:44,634 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 14:04:44,635 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 14:04:44,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:04:44,635 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:04:44,635 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 14:04:44,635 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_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c936dc57c77d69420d30086d462b35a7caa8e1e68cd109cc22e0b9f8298d81b3 [2022-11-23 14:04:45,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:04:45,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:04:45,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:04:45,065 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:04:45,066 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:04:45,067 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_spinner32.c [2022-11-23 14:04:48,085 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:04:48,315 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:04:48,316 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_spinner32.c [2022-11-23 14:04:48,325 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/data/06ecb4b54/f453225bedbd4198b6877859812a5a05/FLAG31ad402b0 [2022-11-23 14:04:48,348 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/data/06ecb4b54/f453225bedbd4198b6877859812a5a05 [2022-11-23 14:04:48,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:04:48,352 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:04:48,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:04:48,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:04:48,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:04:48,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:48" (1/1) ... [2022-11-23 14:04:48,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bba11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:48, skipping insertion in model container [2022-11-23 14:04:48,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:48" (1/1) ... [2022-11-23 14:04:48,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:04:48,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:04:48,653 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_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_spinner32.c[1107,1120] [2022-11-23 14:04:48,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:04:48,820 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:04:48,832 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_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_spinner32.c[1107,1120] [2022-11-23 14:04:48,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:04:48,897 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:04:48,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:48 WrapperNode [2022-11-23 14:04:48,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:04:48,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:04:48,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:04:48,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:04:48,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:48" (1/1) ... [2022-11-23 14:04:48,941 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:48" (1/1) ... [2022-11-23 14:04:48,971 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 215 [2022-11-23 14:04:48,971 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:04:48,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:04:48,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:04:48,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:04:48,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:48" (1/1) ... [2022-11-23 14:04:48,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:48" (1/1) ... [2022-11-23 14:04:48,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:48" (1/1) ... [2022-11-23 14:04:48,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:48" (1/1) ... [2022-11-23 14:04:48,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:48" (1/1) ... [2022-11-23 14:04:49,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:48" (1/1) ... [2022-11-23 14:04:49,008 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:48" (1/1) ... [2022-11-23 14:04:49,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:48" (1/1) ... [2022-11-23 14:04:49,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:04:49,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:04:49,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:04:49,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:04:49,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:48" (1/1) ... [2022-11-23 14:04:49,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:04:49,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:04:49,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:04:49,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:04:49,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:04:49,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:04:49,215 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:04:49,217 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:04:49,636 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:04:49,642 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:04:49,642 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:04:49,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:49 BoogieIcfgContainer [2022-11-23 14:04:49,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:04:49,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:04:49,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:04:49,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:04:49,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:04:48" (1/3) ... [2022-11-23 14:04:49,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@adfec42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:04:49, skipping insertion in model container [2022-11-23 14:04:49,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:48" (2/3) ... [2022-11-23 14:04:49,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@adfec42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:04:49, skipping insertion in model container [2022-11-23 14:04:49,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:49" (3/3) ... [2022-11-23 14:04:49,653 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_spinner32.c [2022-11-23 14:04:49,672 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:04:49,672 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:04:49,738 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:04:49,745 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;@a0d49fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:04:49,745 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:04:49,749 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) [2022-11-23 14:04:49,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 14:04:49,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:04:49,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 14:04:49,756 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:04:49,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:04:49,762 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-23 14:04:49,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:04:49,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1135513249] [2022-11-23 14:04:49,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:04:49,776 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 [2022-11-23 14:04:49,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:04:49,782 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 14:04:49,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 14:04:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:04:49,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-23 14:04:49,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:04:50,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:04:50,198 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:04:50,199 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:04:50,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1135513249] [2022-11-23 14:04:50,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1135513249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:04:50,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:04:50,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:04:50,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999130487] [2022-11-23 14:04:50,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:04:50,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:04:50,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:04:50,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:04:50,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:04:50,254 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) [2022-11-23 14:04:50,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:04:50,335 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-23 14:04:50,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:04:50,339 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 [2022-11-23 14:04:50,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:04:50,347 INFO L225 Difference]: With dead ends: 20 [2022-11-23 14:04:50,347 INFO L226 Difference]: Without dead ends: 11 [2022-11-23 14:04:50,350 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 [2022-11-23 14:04:50,356 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:04:50,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:04:50,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-23 14:04:50,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-23 14:04:50,387 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) [2022-11-23 14:04:50,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-23 14:04:50,389 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-23 14:04:50,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:04:50,390 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-23 14:04:50,390 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) [2022-11-23 14:04:50,390 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-23 14:04:50,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 14:04:50,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:04:50,391 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-23 14:04:50,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 14:04:50,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 14:04:50,603 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:04:50,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:04:50,604 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-23 14:04:50,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:04:50,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864317564] [2022-11-23 14:04:50,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:04:50,606 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 [2022-11-23 14:04:50,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:04:50,607 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 14:04:50,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 14:04:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:04:50,787 WARN L261 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 109 conjunts are in the unsatisfiable core [2022-11-23 14:04:50,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:04:55,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:04:55,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:16:02,180 WARN L233 SmtUtils]: Spent 11.06m on a formula simplification. DAG size of input: 741 DAG size of output: 687 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:16:03,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:16:03,063 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:16:03,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864317564] [2022-11-23 14:16:03,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864317564] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:16:03,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [83793915] [2022-11-23 14:16:03,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:16:03,069 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 14:16:03,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 14:16:03,108 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 14:16:03,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4e35d-e1c0-4eed-bcad-4c9f4b73ef00/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-23 14:16:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:16:03,349 WARN L261 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 100 conjunts are in the unsatisfiable core [2022-11-23 14:16:03,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:16:06,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:16:06,754 INFO L328 TraceCheckSpWp]: Computing backward predicates...