./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float22.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float22.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7 --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 32bit --witnessprinter.graph.data.programhash a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:27:04,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:27:04,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:27:04,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:27:04,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:27:04,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:27:04,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:27:04,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:27:04,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:27:04,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:27:04,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:27:04,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:27:04,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:27:04,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:27:04,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:27:04,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:27:04,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:27:04,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:27:04,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:27:04,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:27:04,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:27:04,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:27:04,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:27:04,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:27:04,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:27:04,252 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:27:04,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:27:04,253 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:27:04,254 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:27:04,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:27:04,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:27:04,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:27:04,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:27:04,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:27:04,260 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:27:04,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:27:04,261 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:27:04,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:27:04,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:27:04,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:27:04,264 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:27:04,265 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 18:27:04,294 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:27:04,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:27:04,295 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:27:04,295 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:27:04,296 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:27:04,296 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:27:04,297 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:27:04,297 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:27:04,297 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:27:04,298 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:27:04,298 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:27:04,299 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:27:04,299 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:27:04,299 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:27:04,300 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:27:04,300 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:27:04,301 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:27:04,301 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:27:04,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:27:04,302 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:27:04,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:27:04,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:27:04,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:27:04,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:27:04,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:27:04,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:27:04,305 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:27:04,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:27:04,308 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:27:04,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:27:04,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:27:04,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:27:04,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:27:04,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:27:04,310 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:27:04,310 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:27:04,311 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:27:04,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:27:04,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:27:04,312 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:27:04,312 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:27:04,312 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f [2021-11-25 18:27:04,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:27:04,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:27:04,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:27:04,678 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:27:04,679 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:27:04,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-11-25 18:27:04,780 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/data/ad5394284/d13c84f8aac148598e9cb46a8ef062c7/FLAGe78f462f4 [2021-11-25 18:27:05,291 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:27:05,292 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-11-25 18:27:05,300 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/data/ad5394284/d13c84f8aac148598e9cb46a8ef062c7/FLAGe78f462f4 [2021-11-25 18:27:05,665 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/data/ad5394284/d13c84f8aac148598e9cb46a8ef062c7 [2021-11-25 18:27:05,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:27:05,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:27:05,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:27:05,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:27:05,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:27:05,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:27:05" (1/1) ... [2021-11-25 18:27:05,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@231a2501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:05, skipping insertion in model container [2021-11-25 18:27:05,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:27:05" (1/1) ... [2021-11-25 18:27:05,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:27:05,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:27:05,893 WARN L230 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_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-11-25 18:27:05,898 WARN L230 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_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-11-25 18:27:05,900 WARN L230 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_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-11-25 18:27:05,903 WARN L230 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_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-11-25 18:27:05,904 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:27:05,912 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:27:05,935 WARN L230 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_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-11-25 18:27:05,939 WARN L230 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_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-11-25 18:27:05,941 WARN L230 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_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-11-25 18:27:05,944 WARN L230 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_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-11-25 18:27:05,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:27:05,961 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:27:05,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:05 WrapperNode [2021-11-25 18:27:05,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:27:05,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:27:05,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:27:05,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:27:05,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:05" (1/1) ... [2021-11-25 18:27:05,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:05" (1/1) ... [2021-11-25 18:27:06,015 INFO L137 Inliner]: procedures = 21, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 122 [2021-11-25 18:27:06,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:27:06,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:27:06,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:27:06,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:27:06,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:05" (1/1) ... [2021-11-25 18:27:06,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:05" (1/1) ... [2021-11-25 18:27:06,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:05" (1/1) ... [2021-11-25 18:27:06,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:05" (1/1) ... [2021-11-25 18:27:06,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:05" (1/1) ... [2021-11-25 18:27:06,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:05" (1/1) ... [2021-11-25 18:27:06,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:05" (1/1) ... [2021-11-25 18:27:06,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:27:06,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:27:06,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:27:06,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:27:06,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:05" (1/1) ... [2021-11-25 18:27:06,063 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:27:06,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:27:06,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:27:06,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:27:06,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:27:06,148 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2021-11-25 18:27:06,148 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2021-11-25 18:27:06,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:27:06,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:27:06,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-25 18:27:06,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:27:06,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-25 18:27:06,150 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2021-11-25 18:27:06,150 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2021-11-25 18:27:06,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:27:06,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:27:06,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:27:06,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:27:06,316 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:27:06,332 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:27:06,702 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:27:06,749 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:27:06,749 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 18:27:06,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:27:06 BoogieIcfgContainer [2021-11-25 18:27:06,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:27:06,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:27:06,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:27:06,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:27:06,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:27:05" (1/3) ... [2021-11-25 18:27:06,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1799bc1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:27:06, skipping insertion in model container [2021-11-25 18:27:06,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:05" (2/3) ... [2021-11-25 18:27:06,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1799bc1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:27:06, skipping insertion in model container [2021-11-25 18:27:06,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:27:06" (3/3) ... [2021-11-25 18:27:06,764 INFO L111 eAbstractionObserver]: Analyzing ICFG float22.i [2021-11-25 18:27:06,771 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:27:06,771 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-25 18:27:06,829 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:27:06,837 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:27:06,838 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-25 18:27:06,856 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 26 states have internal predecessors, (30), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:27:06,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 18:27:06,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:27:06,861 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:27:06,862 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 18:27:06,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:27:06,880 INFO L85 PathProgramCache]: Analyzing trace with hash -682083065, now seen corresponding path program 1 times [2021-11-25 18:27:06,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:27:06,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465234860] [2021-11-25 18:27:06,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:27:06,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:27:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 18:27:07,202 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 18:27:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 18:27:07,326 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 18:27:07,328 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 18:27:07,329 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-11-25 18:27:07,331 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2021-11-25 18:27:07,333 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2021-11-25 18:27:07,334 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-11-25 18:27:07,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:27:07,339 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-25 18:27:07,343 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 18:27:07,352 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-25 18:27:07,354 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2021-11-25 18:27:07,354 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-25 18:27:07,354 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2021-11-25 18:27:07,355 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-25 18:27:07,355 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2021-11-25 18:27:07,355 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled [2021-11-25 18:27:07,355 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled [2021-11-25 18:27:07,356 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled [2021-11-25 18:27:07,356 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-25 18:27:07,357 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2021-11-25 18:27:07,357 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-25 18:27:07,357 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2021-11-25 18:27:07,359 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-25 18:27:07,359 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2021-11-25 18:27:07,359 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled [2021-11-25 18:27:07,360 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled [2021-11-25 18:27:07,360 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled [2021-11-25 18:27:07,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:27:07 BoogieIcfgContainer [2021-11-25 18:27:07,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 18:27:07,387 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 18:27:07,387 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 18:27:07,387 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 18:27:07,388 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:27:06" (3/4) ... [2021-11-25 18:27:07,392 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-25 18:27:07,392 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 18:27:07,393 INFO L158 Benchmark]: Toolchain (without parser) took 1723.12ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 58.1MB in the beginning and 73.8MB in the end (delta: -15.7MB). Peak memory consumption was 37.9kB. Max. memory is 16.1GB. [2021-11-25 18:27:07,394 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory was 62.6MB in the beginning and 62.5MB in the end (delta: 29.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:27:07,394 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.24ms. Allocated memory is still 92.3MB. Free memory was 57.9MB in the beginning and 67.2MB in the end (delta: -9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 18:27:07,395 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.49ms. Allocated memory is still 92.3MB. Free memory was 67.2MB in the beginning and 65.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:27:07,396 INFO L158 Benchmark]: Boogie Preprocessor took 36.50ms. Allocated memory is still 92.3MB. Free memory was 65.4MB in the beginning and 63.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:27:07,397 INFO L158 Benchmark]: RCFGBuilder took 699.97ms. Allocated memory is still 92.3MB. Free memory was 63.8MB in the beginning and 46.6MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-25 18:27:07,397 INFO L158 Benchmark]: TraceAbstraction took 631.09ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 46.2MB in the beginning and 73.9MB in the end (delta: -27.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:27:07,398 INFO L158 Benchmark]: Witness Printer took 4.96ms. Allocated memory is still 111.1MB. Free memory was 73.9MB in the beginning and 73.8MB in the end (delta: 81.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:27:07,402 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory was 62.6MB in the beginning and 62.5MB in the end (delta: 29.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.24ms. Allocated memory is still 92.3MB. Free memory was 57.9MB in the beginning and 67.2MB in the end (delta: -9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.49ms. Allocated memory is still 92.3MB. Free memory was 67.2MB in the beginning and 65.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.50ms. Allocated memory is still 92.3MB. Free memory was 65.4MB in the beginning and 63.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 699.97ms. Allocated memory is still 92.3MB. Free memory was 63.8MB in the beginning and 46.6MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 631.09ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 46.2MB in the beginning and 73.9MB in the end (delta: -27.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.96ms. Allocated memory is still 111.1MB. Free memory was 73.9MB in the beginning and 73.8MB in the end (delta: 81.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled * 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: 144]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 130. Possible FailurePath: [L179] CALL testOne() [L139] ieee754_float f1, f2; VAL [f1={6:0}, f2={5:0}] [L141] CALL, EXPR returnsStructure(0) VAL [\old(index)=0] [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; [L141] RET, EXPR returnsStructure(0) VAL [f1={6:0}, f2={5:0}, returnsStructure(0)=0returnsStructure(0)=56returnsStructure(0)=0returnsStructure(0)=0] [L141] f1 = returnsStructure(0) [L142] CALL, EXPR returnsStructure(1) VAL [\old(index)=1] [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; [L142] RET, EXPR returnsStructure(1) VAL [f1={6:0}, f2={5:0}, returnsStructure(1)=49returnsStructure(1)=0returnsStructure(1)=0returnsStructure(1)=0] [L142] f2 = returnsStructure(1) [L144] EXPR f1.ieee.negative [L144] EXPR f2.ieee.negative VAL [f1={6:0}, f1.ieee.negative=0, f2={5:0}, f2.ieee.negative=0] [L144] COND TRUE !(f1.ieee.negative != f2.ieee.negative) [L144] reach_error() VAL [f1={6:0}, f2={5:0}] - UnprovableResult [Line: 156]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 161]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 173]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 37 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 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 [2021-11-25 18:27:07,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float22.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7 --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 32bit --witnessprinter.graph.data.programhash a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:27:10,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:27:10,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:27:10,254 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:27:10,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:27:10,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:27:10,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:27:10,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:27:10,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:27:10,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:27:10,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:27:10,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:27:10,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:27:10,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:27:10,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:27:10,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:27:10,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:27:10,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:27:10,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:27:10,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:27:10,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:27:10,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:27:10,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:27:10,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:27:10,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:27:10,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:27:10,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:27:10,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:27:10,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:27:10,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:27:10,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:27:10,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:27:10,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:27:10,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:27:10,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:27:10,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:27:10,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:27:10,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:27:10,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:27:10,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:27:10,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:27:10,325 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-25 18:27:10,352 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:27:10,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:27:10,353 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:27:10,353 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:27:10,356 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:27:10,356 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:27:10,356 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:27:10,356 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:27:10,357 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:27:10,357 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:27:10,357 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:27:10,357 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:27:10,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:27:10,358 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:27:10,359 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:27:10,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:27:10,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:27:10,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:27:10,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:27:10,360 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-25 18:27:10,360 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-25 18:27:10,360 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-25 18:27:10,360 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:27:10,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:27:10,361 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:27:10,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:27:10,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:27:10,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-25 18:27:10,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:27:10,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:27:10,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:27:10,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:27:10,363 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:27:10,363 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-25 18:27:10,363 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-25 18:27:10,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:27:10,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:27:10,364 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:27:10,364 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_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f [2021-11-25 18:27:10,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:27:10,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:27:10,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:27:10,899 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:27:10,902 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:27:10,904 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-11-25 18:27:10,978 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/data/d431075ea/31a9a6d748fc44ce8cc954b9d5335df8/FLAGef8c3105d [2021-11-25 18:27:11,525 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:27:11,530 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-11-25 18:27:11,542 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/data/d431075ea/31a9a6d748fc44ce8cc954b9d5335df8/FLAGef8c3105d [2021-11-25 18:27:11,870 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/data/d431075ea/31a9a6d748fc44ce8cc954b9d5335df8 [2021-11-25 18:27:11,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:27:11,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:27:11,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:27:11,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:27:11,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:27:11,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:27:11" (1/1) ... [2021-11-25 18:27:11,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49fe7682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:11, skipping insertion in model container [2021-11-25 18:27:11,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:27:11" (1/1) ... [2021-11-25 18:27:11,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:27:11,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:27:12,086 WARN L230 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_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-11-25 18:27:12,092 WARN L230 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_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-11-25 18:27:12,094 WARN L230 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_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-11-25 18:27:12,097 WARN L230 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_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-11-25 18:27:12,099 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:27:12,136 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:27:12,215 WARN L230 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_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-11-25 18:27:12,218 WARN L230 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_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-11-25 18:27:12,220 WARN L230 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_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-11-25 18:27:12,242 WARN L230 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_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-11-25 18:27:12,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:27:12,268 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:27:12,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:12 WrapperNode [2021-11-25 18:27:12,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:27:12,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:27:12,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:27:12,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:27:12,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:12" (1/1) ... [2021-11-25 18:27:12,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:12" (1/1) ... [2021-11-25 18:27:12,326 INFO L137 Inliner]: procedures = 24, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 122 [2021-11-25 18:27:12,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:27:12,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:27:12,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:27:12,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:27:12,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:12" (1/1) ... [2021-11-25 18:27:12,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:12" (1/1) ... [2021-11-25 18:27:12,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:12" (1/1) ... [2021-11-25 18:27:12,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:12" (1/1) ... [2021-11-25 18:27:12,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:12" (1/1) ... [2021-11-25 18:27:12,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:12" (1/1) ... [2021-11-25 18:27:12,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:12" (1/1) ... [2021-11-25 18:27:12,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:27:12,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:27:12,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:27:12,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:27:12,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:12" (1/1) ... [2021-11-25 18:27:12,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:27:12,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:27:12,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:27:12,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:27:12,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:27:12,472 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2021-11-25 18:27:12,472 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2021-11-25 18:27:12,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-25 18:27:12,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:27:12,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-25 18:27:12,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-25 18:27:12,473 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2021-11-25 18:27:12,473 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2021-11-25 18:27:12,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:27:12,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:27:12,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-25 18:27:12,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:27:12,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-25 18:27:12,582 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:27:12,584 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:27:13,005 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:27:13,012 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:27:13,012 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 18:27:13,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:27:13 BoogieIcfgContainer [2021-11-25 18:27:13,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:27:13,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:27:13,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:27:13,028 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:27:13,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:27:11" (1/3) ... [2021-11-25 18:27:13,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589950bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:27:13, skipping insertion in model container [2021-11-25 18:27:13,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:12" (2/3) ... [2021-11-25 18:27:13,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589950bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:27:13, skipping insertion in model container [2021-11-25 18:27:13,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:27:13" (3/3) ... [2021-11-25 18:27:13,036 INFO L111 eAbstractionObserver]: Analyzing ICFG float22.i [2021-11-25 18:27:13,042 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:27:13,042 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-25 18:27:13,125 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:27:13,135 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:27:13,135 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-25 18:27:13,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 34 states have internal predecessors, (38), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:27:13,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-25 18:27:13,178 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:27:13,179 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:27:13,179 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 18:27:13,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:27:13,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1402952998, now seen corresponding path program 1 times [2021-11-25 18:27:13,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 18:27:13,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349162142] [2021-11-25 18:27:13,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:27:13,204 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 18:27:13,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 18:27:13,208 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 18:27:13,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-25 18:27:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:27:13,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-25 18:27:13,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:27:13,684 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:27:13,708 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-25 18:27:13,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 18:27:13,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-11-25 18:27:14,236 INFO L354 Elim1Store]: treesize reduction 30, result has 45.5 percent of original size [2021-11-25 18:27:14,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 55 [2021-11-25 18:27:14,526 INFO L354 Elim1Store]: treesize reduction 74, result has 20.4 percent of original size [2021-11-25 18:27:14,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 51 [2021-11-25 18:27:18,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:18,766 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 18:27:18,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 58 [2021-11-25 18:27:18,837 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-25 18:27:18,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 33 [2021-11-25 18:27:21,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:21,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 34 [2021-11-25 18:27:21,096 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:27:21,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:27:23,192 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_45 (_ BitVec 32)) (|ULTIMATE.start_testOne_~#f2~0#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_#t~mem8#1_9| (_ BitVec 32)) (v_ArrVal_47 (_ BitVec 32)) (v_ArrVal_48 (_ BitVec 32))) (or (not (= |v_ULTIMATE.start_testOne_#t~mem8#1_9| (select (select (store |c_#memory_int| |c_ULTIMATE.start_testOne_~#f2~0#1.base| (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_testOne_~#f2~0#1.base|) |ULTIMATE.start_testOne_~#f2~0#1.offset| v_ArrVal_45) (bvadd (_ bv4 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) v_ArrVal_47) (bvadd (_ bv8 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) v_ArrVal_48) |ULTIMATE.start_testOne_~#f2~0#1.offset| |v_ULTIMATE.start_testOne_#t~mem8#1_9|)) |c_ULTIMATE.start_testOne_~#f1~0#1.base|) |c_ULTIMATE.start_testOne_~#f1~0#1.offset|))) (not (= |c_ULTIMATE.start_testOne_#t~ret7#1.f| (fp ((_ extract 31 31) |v_ULTIMATE.start_testOne_#t~mem8#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testOne_#t~mem8#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testOne_#t~mem8#1_9|)))))) is different from false [2021-11-25 18:27:25,717 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_returnsStructure_~#c~1.base_13| (_ BitVec 32)) (v_ArrVal_56 (_ BitVec 32)) (v_ArrVal_45 (_ BitVec 32)) (|ULTIMATE.start_testOne_~#f2~0#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_#t~mem8#1_9| (_ BitVec 32)) (v_ArrVal_57 (_ BitVec 32)) (v_ArrVal_47 (_ BitVec 32)) (v_ArrVal_48 (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsStructure_~#c~1.base_13|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_56) (_ bv8 32) v_ArrVal_57))) (or (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testOne_#t~mem8#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testOne_#t~mem8#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testOne_#t~mem8#1_9|)) (let ((.cse0 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))) (not (= (_ bv0 1) (select |c_#valid| |v_returnsStructure_~#c~1.base_13|))) (not (= (select (select (let ((.cse2 (store |c_#memory_int| |v_returnsStructure_~#c~1.base_13| .cse1))) (store .cse2 |c_ULTIMATE.start_testOne_~#f2~0#1.base| (store (store (store (store (select .cse2 |c_ULTIMATE.start_testOne_~#f2~0#1.base|) |ULTIMATE.start_testOne_~#f2~0#1.offset| v_ArrVal_45) (bvadd (_ bv4 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) v_ArrVal_47) (bvadd (_ bv8 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) v_ArrVal_48) |ULTIMATE.start_testOne_~#f2~0#1.offset| |v_ULTIMATE.start_testOne_#t~mem8#1_9|))) |c_ULTIMATE.start_testOne_~#f1~0#1.base|) |c_ULTIMATE.start_testOne_~#f1~0#1.offset|) |v_ULTIMATE.start_testOne_#t~mem8#1_9|))))) is different from false [2021-11-25 18:27:25,738 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 18:27:25,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349162142] [2021-11-25 18:27:25,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1349162142] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:27:25,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [560905305] [2021-11-25 18:27:25,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:27:25,740 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 18:27:25,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 18:27:25,746 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 18:27:25,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2021-11-25 18:27:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:27:26,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-25 18:27:26,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:27:26,158 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-25 18:27:26,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 18:27:26,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-11-25 18:27:26,526 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 18:27:26,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2021-11-25 18:27:26,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:26,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:26,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:26,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 51 [2021-11-25 18:27:29,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:29,262 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 18:27:29,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 55 [2021-11-25 18:27:29,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:29,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-11-25 18:27:31,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:31,479 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 18:27:31,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 38 [2021-11-25 18:27:31,499 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:27:31,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:27:34,161 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_testOne_#t~mem8#1_12| (_ BitVec 32)) (|v_returnsStructure_~#c~1.base_22| (_ BitVec 32)) (v_ArrVal_105 (_ BitVec 32)) (v_ArrVal_104 (_ BitVec 32)) (v_ArrVal_114 (_ BitVec 32)) (v_ArrVal_113 (_ BitVec 32)) (v_ArrVal_102 (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsStructure_~#c~1.base_22|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_113) (_ bv8 32) v_ArrVal_114))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_returnsStructure_~#c~1.base_22|))))) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testOne_#t~mem8#1_12|) ((_ extract 30 23) |v_ULTIMATE.start_testOne_#t~mem8#1_12|) ((_ extract 22 0) |v_ULTIMATE.start_testOne_#t~mem8#1_12|)) (let ((.cse0 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))) (not (= |v_ULTIMATE.start_testOne_#t~mem8#1_12| (select (select (let ((.cse2 (store |c_#memory_int| |v_returnsStructure_~#c~1.base_22| .cse1))) (store .cse2 |c_ULTIMATE.start_testOne_~#f2~0#1.base| (store (store (store (store (select .cse2 |c_ULTIMATE.start_testOne_~#f2~0#1.base|) |c_ULTIMATE.start_testOne_~#f2~0#1.offset| v_ArrVal_104) (bvadd (_ bv4 32) |c_ULTIMATE.start_testOne_~#f2~0#1.offset|) v_ArrVal_105) (bvadd (_ bv8 32) |c_ULTIMATE.start_testOne_~#f2~0#1.offset|) v_ArrVal_102) |c_ULTIMATE.start_testOne_~#f2~0#1.offset| |v_ULTIMATE.start_testOne_#t~mem8#1_12|))) |c_ULTIMATE.start_testOne_~#f1~0#1.base|) |c_ULTIMATE.start_testOne_~#f1~0#1.offset|)))))) is different from false [2021-11-25 18:27:34,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [560905305] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:27:34,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102685973] [2021-11-25 18:27:34,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:27:34,175 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:27:34,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:27:34,183 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:27:34,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 18:27:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:27:34,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-25 18:27:34,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:27:34,315 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-25 18:27:34,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 18:27:34,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-11-25 18:27:34,623 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 18:27:34,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 28 [2021-11-25 18:27:34,885 INFO L354 Elim1Store]: treesize reduction 74, result has 20.4 percent of original size [2021-11-25 18:27:34,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 51 [2021-11-25 18:27:37,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:37,443 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 18:27:37,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 55 [2021-11-25 18:27:37,481 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 18:27:37,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2021-11-25 18:27:39,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:39,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 34 [2021-11-25 18:27:39,759 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:27:39,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:27:41,820 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_162 (_ BitVec 32)) (v_ArrVal_161 (_ BitVec 32)) (|ULTIMATE.start_testOne_~#f2~0#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_#t~mem8#1_15| (_ BitVec 32)) (v_ArrVal_163 (_ BitVec 32))) (or (not (= |v_ULTIMATE.start_testOne_#t~mem8#1_15| (select (select (store |c_#memory_int| |c_ULTIMATE.start_testOne_~#f2~0#1.base| (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_testOne_~#f2~0#1.base|) |ULTIMATE.start_testOne_~#f2~0#1.offset| v_ArrVal_163) (bvadd (_ bv4 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) v_ArrVal_162) (bvadd (_ bv8 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) v_ArrVal_161) |ULTIMATE.start_testOne_~#f2~0#1.offset| |v_ULTIMATE.start_testOne_#t~mem8#1_15|)) |c_ULTIMATE.start_testOne_~#f1~0#1.base|) |c_ULTIMATE.start_testOne_~#f1~0#1.offset|))) (not (= |c_ULTIMATE.start_testOne_#t~ret7#1.f| (fp ((_ extract 31 31) |v_ULTIMATE.start_testOne_#t~mem8#1_15|) ((_ extract 30 23) |v_ULTIMATE.start_testOne_#t~mem8#1_15|) ((_ extract 22 0) |v_ULTIMATE.start_testOne_#t~mem8#1_15|)))))) is different from false [2021-11-25 18:27:44,126 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_162 (_ BitVec 32)) (v_ArrVal_161 (_ BitVec 32)) (v_ArrVal_171 (_ BitVec 32)) (v_ArrVal_170 (_ BitVec 32)) (|v_returnsStructure_~#c~1.base_33| (_ BitVec 32)) (|ULTIMATE.start_testOne_~#f2~0#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_#t~mem8#1_15| (_ BitVec 32)) (v_ArrVal_163 (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsStructure_~#c~1.base_33|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_170) (_ bv8 32) v_ArrVal_171))) (or (not (= (let ((.cse0 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) |v_ULTIMATE.start_testOne_#t~mem8#1_15|) ((_ extract 30 23) |v_ULTIMATE.start_testOne_#t~mem8#1_15|) ((_ extract 22 0) |v_ULTIMATE.start_testOne_#t~mem8#1_15|)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_returnsStructure_~#c~1.base_33|)))) (not (= (select (select (let ((.cse2 (store |c_#memory_int| |v_returnsStructure_~#c~1.base_33| .cse1))) (store .cse2 |c_ULTIMATE.start_testOne_~#f2~0#1.base| (store (store (store (store (select .cse2 |c_ULTIMATE.start_testOne_~#f2~0#1.base|) |ULTIMATE.start_testOne_~#f2~0#1.offset| v_ArrVal_163) (bvadd (_ bv4 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) v_ArrVal_162) (bvadd (_ bv8 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) v_ArrVal_161) |ULTIMATE.start_testOne_~#f2~0#1.offset| |v_ULTIMATE.start_testOne_#t~mem8#1_15|))) |c_ULTIMATE.start_testOne_~#f1~0#1.base|) |c_ULTIMATE.start_testOne_~#f1~0#1.offset|) |v_ULTIMATE.start_testOne_#t~mem8#1_15|))))) is different from false [2021-11-25 18:27:44,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102685973] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:27:44,144 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:27:44,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 19 [2021-11-25 18:27:44,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878377577] [2021-11-25 18:27:44,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:27:44,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-25 18:27:44,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 18:27:44,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-25 18:27:44,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=359, Unknown=9, NotChecked=210, Total=650 [2021-11-25 18:27:44,192 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 34 states have internal predecessors, (38), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 19 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 11 states have internal predecessors, (16), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 18:27:51,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:27:51,232 INFO L93 Difference]: Finished difference Result 84 states and 98 transitions. [2021-11-25 18:27:51,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 18:27:51,235 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 11 states have internal predecessors, (16), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 14 [2021-11-25 18:27:51,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:27:51,242 INFO L225 Difference]: With dead ends: 84 [2021-11-25 18:27:51,242 INFO L226 Difference]: Without dead ends: 41 [2021-11-25 18:27:51,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 32.6s TimeCoverageRelationStatistics Valid=111, Invalid=599, Unknown=12, NotChecked=270, Total=992 [2021-11-25 18:27:51,249 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 2 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 219 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:27:51,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 391 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 24 Invalid, 0 Unknown, 219 Unchecked, 0.1s Time] [2021-11-25 18:27:51,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-11-25 18:27:51,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-11-25 18:27:51,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 29 states have internal predecessors, (29), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:27:51,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2021-11-25 18:27:51,296 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 14 [2021-11-25 18:27:51,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:27:51,297 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2021-11-25 18:27:51,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 11 states have internal predecessors, (16), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 18:27:51,297 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2021-11-25 18:27:51,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-25 18:27:51,299 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:27:51,300 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:27:51,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2021-11-25 18:27:51,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 18:27:51,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-25 18:27:51,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 18:27:51,911 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 18:27:51,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:27:51,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1984783089, now seen corresponding path program 1 times [2021-11-25 18:27:51,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 18:27:51,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888328936] [2021-11-25 18:27:51,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:27:51,913 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 18:27:51,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 18:27:51,915 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 18:27:51,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-25 18:27:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:27:52,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-25 18:27:52,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:27:52,319 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-25 18:27:52,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-25 18:27:52,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-11-25 18:27:52,591 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 18:27:52,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 32 [2021-11-25 18:27:52,802 INFO L354 Elim1Store]: treesize reduction 74, result has 20.4 percent of original size [2021-11-25 18:27:52,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 51 [2021-11-25 18:27:57,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:57,284 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 18:27:57,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 58 [2021-11-25 18:27:57,310 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 18:27:57,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 30 [2021-11-25 18:27:59,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:27:59,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 34 [2021-11-25 18:27:59,549 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 18:27:59,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:28:12,170 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_testTwo_~#f2~1#1.offset| (_ BitVec 32)) (|v_returnsStructure_~#c~1.base_44| (_ BitVec 32)) (v_ArrVal_248 (_ BitVec 32)) (v_ArrVal_247 (_ BitVec 32)) (v_ArrVal_257 (_ BitVec 32)) (v_ArrVal_246 (_ BitVec 32)) (v_ArrVal_256 (_ BitVec 32)) (|v_ULTIMATE.start_testTwo_#t~mem12#1_9| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsStructure_~#c~1.base_44|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_256) (_ bv8 32) v_ArrVal_257))) (or (not (= (let ((.cse0 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) |v_ULTIMATE.start_testTwo_#t~mem12#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testTwo_#t~mem12#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testTwo_#t~mem12#1_9|)))) (not (= (select (select (let ((.cse2 (store |c_#memory_int| |v_returnsStructure_~#c~1.base_44| .cse1))) (store .cse2 |c_ULTIMATE.start_testTwo_~#f2~1#1.base| (store (store (store (store (select .cse2 |c_ULTIMATE.start_testTwo_~#f2~1#1.base|) |ULTIMATE.start_testTwo_~#f2~1#1.offset| v_ArrVal_248) (bvadd (_ bv4 32) |ULTIMATE.start_testTwo_~#f2~1#1.offset|) v_ArrVal_247) (bvadd (_ bv8 32) |ULTIMATE.start_testTwo_~#f2~1#1.offset|) v_ArrVal_246) |ULTIMATE.start_testTwo_~#f2~1#1.offset| |v_ULTIMATE.start_testTwo_#t~mem12#1_9|))) |c_ULTIMATE.start_testTwo_~#f1~1#1.base|) |c_ULTIMATE.start_testTwo_~#f1~1#1.offset|) |v_ULTIMATE.start_testTwo_#t~mem12#1_9|)) (not (= (_ bv0 1) (select |c_#valid| |v_returnsStructure_~#c~1.base_44|)))))) is different from false [2021-11-25 18:28:12,183 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 18:28:12,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888328936] [2021-11-25 18:28:12,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888328936] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:28:12,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1048157222] [2021-11-25 18:28:12,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:28:12,185 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 18:28:12,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 18:28:12,187 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 18:28:12,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-25 18:28:12,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:28:12,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-25 18:28:12,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:28:13,029 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-25 18:28:13,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2021-11-25 18:28:13,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-11-25 18:28:13,348 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 18:28:13,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 30 [2021-11-25 18:28:13,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:13,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:13,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:13,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 51 [2021-11-25 18:28:18,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:18,526 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 18:28:18,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 58 [2021-11-25 18:28:18,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:18,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-11-25 18:28:20,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:20,768 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 18:28:20,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 38 [2021-11-25 18:28:20,784 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 18:28:20,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:28:23,677 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_returnsStructure_~#c~1.base_57| (_ BitVec 32)) (v_ArrVal_335 (_ BitVec 32)) (|v_ULTIMATE.start_testTwo_#t~mem12#1_12| (_ BitVec 32)) (v_ArrVal_334 (_ BitVec 32)) (v_ArrVal_343 (_ BitVec 32)) (v_ArrVal_342 (_ BitVec 32)) (v_ArrVal_331 (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsStructure_~#c~1.base_57|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_342) (_ bv8 32) v_ArrVal_343))) (or (not (= (select (select (let ((.cse0 (store |c_#memory_int| |v_returnsStructure_~#c~1.base_57| .cse1))) (store .cse0 |c_ULTIMATE.start_testTwo_~#f2~1#1.base| (store (store (store (store (select .cse0 |c_ULTIMATE.start_testTwo_~#f2~1#1.base|) |c_ULTIMATE.start_testTwo_~#f2~1#1.offset| v_ArrVal_331) (bvadd (_ bv4 32) |c_ULTIMATE.start_testTwo_~#f2~1#1.offset|) v_ArrVal_335) (bvadd (_ bv8 32) |c_ULTIMATE.start_testTwo_~#f2~1#1.offset|) v_ArrVal_334) |c_ULTIMATE.start_testTwo_~#f2~1#1.offset| |v_ULTIMATE.start_testTwo_#t~mem12#1_12|))) |c_ULTIMATE.start_testTwo_~#f1~1#1.base|) |c_ULTIMATE.start_testTwo_~#f1~1#1.offset|) |v_ULTIMATE.start_testTwo_#t~mem12#1_12|)) (not (= (let ((.cse2 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (fp ((_ extract 31 31) |v_ULTIMATE.start_testTwo_#t~mem12#1_12|) ((_ extract 30 23) |v_ULTIMATE.start_testTwo_#t~mem12#1_12|) ((_ extract 22 0) |v_ULTIMATE.start_testTwo_#t~mem12#1_12|)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_returnsStructure_~#c~1.base_57|))))))) is different from false [2021-11-25 18:28:23,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1048157222] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:28:23,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079870228] [2021-11-25 18:28:23,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:28:23,695 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:28:23,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:28:23,696 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:28:23,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 18:28:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:28:23,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-25 18:28:23,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:28:23,929 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-25 18:28:23,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 18:28:24,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-11-25 18:28:24,197 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 18:28:24,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 34 [2021-11-25 18:28:24,441 INFO L354 Elim1Store]: treesize reduction 74, result has 20.4 percent of original size [2021-11-25 18:28:24,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 51 [2021-11-25 18:28:26,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:26,847 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 18:28:26,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 58 [2021-11-25 18:28:26,886 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 18:28:26,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 34 [2021-11-25 18:28:26,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:26,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 34 [2021-11-25 18:28:27,013 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 18:28:27,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:28:34,499 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_testTwo_~#f2~1#1.offset| (_ BitVec 32)) (v_ArrVal_437 (_ BitVec 32)) (v_ArrVal_436 (_ BitVec 32)) (v_ArrVal_248 (_ BitVec 32)) (v_ArrVal_247 (_ BitVec 32)) (v_ArrVal_246 (_ BitVec 32)) (|v_returnsStructure_~#c~1.base_70| (_ BitVec 32)) (|v_ULTIMATE.start_testTwo_#t~mem12#1_9| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsStructure_~#c~1.base_70|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_437) (_ bv8 32) v_ArrVal_436))) (or (not (= |v_ULTIMATE.start_testTwo_#t~mem12#1_9| (select (select (let ((.cse0 (store |c_#memory_int| |v_returnsStructure_~#c~1.base_70| .cse1))) (store .cse0 |c_ULTIMATE.start_testTwo_~#f2~1#1.base| (store (store (store (store (select .cse0 |c_ULTIMATE.start_testTwo_~#f2~1#1.base|) |ULTIMATE.start_testTwo_~#f2~1#1.offset| v_ArrVal_248) (bvadd (_ bv4 32) |ULTIMATE.start_testTwo_~#f2~1#1.offset|) v_ArrVal_247) (bvadd (_ bv8 32) |ULTIMATE.start_testTwo_~#f2~1#1.offset|) v_ArrVal_246) |ULTIMATE.start_testTwo_~#f2~1#1.offset| |v_ULTIMATE.start_testTwo_#t~mem12#1_9|))) |c_ULTIMATE.start_testTwo_~#f1~1#1.base|) |c_ULTIMATE.start_testTwo_~#f1~1#1.offset|))) (not (= (_ bv0 1) (select |c_#valid| |v_returnsStructure_~#c~1.base_70|))) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testTwo_#t~mem12#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testTwo_#t~mem12#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testTwo_#t~mem12#1_9|)) (let ((.cse2 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))))))) is different from false [2021-11-25 18:28:34,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079870228] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:28:34,512 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:28:34,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 15 [2021-11-25 18:28:34,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775270919] [2021-11-25 18:28:34,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:28:34,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-25 18:28:34,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 18:28:34,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-25 18:28:34,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=252, Unknown=10, NotChecked=102, Total=420 [2021-11-25 18:28:34,515 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 15 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 5 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2021-11-25 18:28:38,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:28:38,894 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2021-11-25 18:28:38,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 18:28:38,895 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 5 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 27 [2021-11-25 18:28:38,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:28:38,896 INFO L225 Difference]: With dead ends: 44 [2021-11-25 18:28:38,896 INFO L226 Difference]: Without dead ends: 42 [2021-11-25 18:28:38,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 63 SyntacticMatches, 8 SemanticMatches, 21 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 41.8s TimeCoverageRelationStatistics Valid=66, Invalid=314, Unknown=12, NotChecked=114, Total=506 [2021-11-25 18:28:38,898 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 3 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 105 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:28:38,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 154 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 20 Invalid, 0 Unknown, 105 Unchecked, 0.1s Time] [2021-11-25 18:28:38,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-11-25 18:28:38,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-11-25 18:28:38,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 29 states have internal predecessors, (29), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:28:38,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2021-11-25 18:28:38,911 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 27 [2021-11-25 18:28:38,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:28:38,912 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2021-11-25 18:28:38,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 5 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2021-11-25 18:28:38,912 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2021-11-25 18:28:38,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-25 18:28:38,914 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:28:38,914 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:28:38,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-25 18:28:39,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-25 18:28:39,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-11-25 18:28:39,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt [2021-11-25 18:28:39,515 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 18:28:39,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:28:39,516 INFO L85 PathProgramCache]: Analyzing trace with hash 248347731, now seen corresponding path program 1 times [2021-11-25 18:28:39,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 18:28:39,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [586769858] [2021-11-25 18:28:39,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:28:39,516 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 18:28:39,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 18:28:39,517 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 18:28:39,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-25 18:28:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:28:39,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 65 conjunts are in the unsatisfiable core [2021-11-25 18:28:39,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:28:39,994 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-25 18:28:39,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 18:28:40,213 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 18:28:40,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 32 [2021-11-25 18:28:40,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-11-25 18:28:40,448 INFO L354 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2021-11-25 18:28:40,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 24 [2021-11-25 18:28:40,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:40,743 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:28:40,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 30 [2021-11-25 18:28:41,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-11-25 18:28:41,257 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 18:28:41,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 28 [2021-11-25 18:28:41,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 33 [2021-11-25 18:28:44,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:44,455 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 18:28:44,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 58 [2021-11-25 18:28:44,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:44,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 18:28:46,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:46,642 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 18:28:46,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 38 [2021-11-25 18:28:46,734 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 18:28:46,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:28:49,346 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_548 (_ BitVec 32)) (|v_returnsField_~#c~0.base_13| (_ BitVec 32)) (v_ArrVal_547 (_ BitVec 32)) (|v_ULTIMATE.start_testTwo_#t~mem16#1_9| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsField_~#c~0.base_13|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_547) (_ bv8 32) v_ArrVal_548))) (or (not (= (let ((.cse0 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) |v_ULTIMATE.start_testTwo_#t~mem16#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testTwo_#t~mem16#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testTwo_#t~mem16#1_9|)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_returnsField_~#c~0.base_13|)))) (not (= |v_ULTIMATE.start_testTwo_#t~mem16#1_9| (select (select (let ((.cse2 (store |c_#memory_int| |v_returnsField_~#c~0.base_13| .cse1))) (store .cse2 |c_ULTIMATE.start_testTwo_~#f2~1#1.base| (store (select .cse2 |c_ULTIMATE.start_testTwo_~#f2~1#1.base|) |c_ULTIMATE.start_testTwo_~#f2~1#1.offset| |v_ULTIMATE.start_testTwo_#t~mem16#1_9|))) |c_ULTIMATE.start_testTwo_~#f1~1#1.base|) |c_ULTIMATE.start_testTwo_~#f1~1#1.offset|)))))) is different from false [2021-11-25 18:28:49,356 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 18:28:49,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [586769858] [2021-11-25 18:28:49,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [586769858] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:28:49,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1108966273] [2021-11-25 18:28:49,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:28:49,358 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 18:28:49,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 18:28:49,363 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 18:28:49,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-25 18:28:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:28:50,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 55 conjunts are in the unsatisfiable core [2021-11-25 18:28:50,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:28:50,730 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:28:50,749 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-25 18:28:50,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 18:28:51,061 INFO L354 Elim1Store]: treesize reduction 30, result has 45.5 percent of original size [2021-11-25 18:28:51,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 55 [2021-11-25 18:28:51,390 INFO L354 Elim1Store]: treesize reduction 30, result has 45.5 percent of original size [2021-11-25 18:28:51,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 50 [2021-11-25 18:28:51,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-11-25 18:28:51,863 INFO L354 Elim1Store]: treesize reduction 30, result has 45.5 percent of original size [2021-11-25 18:28:51,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 52 [2021-11-25 18:28:52,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 33 [2021-11-25 18:28:56,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:56,466 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 18:28:56,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 55 [2021-11-25 18:28:56,525 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-25 18:28:56,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 18:28:58,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:28:58,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 34 [2021-11-25 18:28:58,765 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 18:28:58,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:29:02,528 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_testTwo_~#f2~1#1.offset| (_ BitVec 32)) (v_ArrVal_649 (_ BitVec 32)) (|v_returnsField_~#c~0.base_22| (_ BitVec 32)) (|v_ULTIMATE.start_testTwo_#t~mem16#1_12| (_ BitVec 32)) (v_ArrVal_650 (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsField_~#c~0.base_22|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_649) (_ bv8 32) v_ArrVal_650))) (or (not (= (select (select (let ((.cse0 (store |c_#memory_int| |v_returnsField_~#c~0.base_22| .cse1))) (store .cse0 |c_ULTIMATE.start_testTwo_~#f2~1#1.base| (store (select .cse0 |c_ULTIMATE.start_testTwo_~#f2~1#1.base|) |ULTIMATE.start_testTwo_~#f2~1#1.offset| |v_ULTIMATE.start_testTwo_#t~mem16#1_12|))) |c_ULTIMATE.start_testTwo_~#f1~1#1.base|) |c_ULTIMATE.start_testTwo_~#f1~1#1.offset|) |v_ULTIMATE.start_testTwo_#t~mem16#1_12|)) (not (= (let ((.cse2 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (fp ((_ extract 31 31) |v_ULTIMATE.start_testTwo_#t~mem16#1_12|) ((_ extract 30 23) |v_ULTIMATE.start_testTwo_#t~mem16#1_12|) ((_ extract 22 0) |v_ULTIMATE.start_testTwo_#t~mem16#1_12|)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_returnsField_~#c~0.base_22|))))))) is different from false [2021-11-25 18:29:02,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1108966273] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:29:02,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164145237] [2021-11-25 18:29:02,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:29:02,538 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:29:02,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:29:02,539 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:29:02,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-25 18:29:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:29:02,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 58 conjunts are in the unsatisfiable core [2021-11-25 18:29:02,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:29:02,800 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-25 18:29:02,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-25 18:29:03,078 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 18:29:03,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2021-11-25 18:29:03,418 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 18:29:03,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 35 [2021-11-25 18:29:03,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-11-25 18:29:03,776 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 18:29:03,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 32 [2021-11-25 18:29:04,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 33 [2021-11-25 18:29:10,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:29:10,266 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 18:29:10,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 58 [2021-11-25 18:29:10,307 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 18:29:10,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 18 [2021-11-25 18:29:12,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:29:12,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 34 [2021-11-25 18:29:12,579 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 18:29:12,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:29:22,881 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_testTwo_~#f2~1#1.offset| (_ BitVec 32)) (v_ArrVal_756 (_ BitVec 32)) (v_ArrVal_755 (_ BitVec 32)) (|v_returnsField_~#c~0.base_33| (_ BitVec 32)) (|v_ULTIMATE.start_testTwo_#t~mem16#1_12| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsField_~#c~0.base_33|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_756) (_ bv8 32) v_ArrVal_755))) (or (not (= (select (select (let ((.cse0 (store |c_#memory_int| |v_returnsField_~#c~0.base_33| .cse1))) (store .cse0 |c_ULTIMATE.start_testTwo_~#f2~1#1.base| (store (select .cse0 |c_ULTIMATE.start_testTwo_~#f2~1#1.base|) |ULTIMATE.start_testTwo_~#f2~1#1.offset| |v_ULTIMATE.start_testTwo_#t~mem16#1_12|))) |c_ULTIMATE.start_testTwo_~#f1~1#1.base|) |c_ULTIMATE.start_testTwo_~#f1~1#1.offset|) |v_ULTIMATE.start_testTwo_#t~mem16#1_12|)) (not (= (let ((.cse2 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (fp ((_ extract 31 31) |v_ULTIMATE.start_testTwo_#t~mem16#1_12|) ((_ extract 30 23) |v_ULTIMATE.start_testTwo_#t~mem16#1_12|) ((_ extract 22 0) |v_ULTIMATE.start_testTwo_#t~mem16#1_12|)))) (not (= (_ bv0 1) (select |c_#valid| |v_returnsField_~#c~0.base_33|)))))) is different from false [2021-11-25 18:29:22,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164145237] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:29:22,889 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:29:22,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 23 [2021-11-25 18:29:22,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566486371] [2021-11-25 18:29:22,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:29:22,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-25 18:29:22,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 18:29:22,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-25 18:29:22,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=572, Unknown=7, NotChecked=150, Total=812 [2021-11-25 18:29:22,892 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand has 23 states, 20 states have (on average 1.8) internal successors, (36), 14 states have internal predecessors, (36), 7 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (14), 11 states have call predecessors, (14), 7 states have call successors, (14) [2021-11-25 18:29:32,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:29:32,008 INFO L93 Difference]: Finished difference Result 46 states and 48 transitions. [2021-11-25 18:29:32,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 18:29:32,009 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 1.8) internal successors, (36), 14 states have internal predecessors, (36), 7 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (14), 11 states have call predecessors, (14), 7 states have call successors, (14) Word has length 38 [2021-11-25 18:29:32,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:29:32,011 INFO L225 Difference]: With dead ends: 46 [2021-11-25 18:29:32,011 INFO L226 Difference]: Without dead ends: 44 [2021-11-25 18:29:32,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 78 SyntacticMatches, 20 SemanticMatches, 36 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 45.6s TimeCoverageRelationStatistics Valid=144, Invalid=1048, Unknown=10, NotChecked=204, Total=1406 [2021-11-25 18:29:32,013 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 3 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 241 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:29:32,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 213 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 241 Unchecked, 0.1s Time] [2021-11-25 18:29:32,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-25 18:29:32,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2021-11-25 18:29:32,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 29 states have (on average 1.0) internal successors, (29), 29 states have internal predecessors, (29), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:29:32,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2021-11-25 18:29:32,024 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 38 [2021-11-25 18:29:32,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:29:32,025 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2021-11-25 18:29:32,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 1.8) internal successors, (36), 14 states have internal predecessors, (36), 7 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (14), 11 states have call predecessors, (14), 7 states have call successors, (14) [2021-11-25 18:29:32,025 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2021-11-25 18:29:32,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-25 18:29:32,027 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:29:32,027 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:29:32,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-25 18:29:32,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-25 18:29:32,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-25 18:29:32,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:29:32,633 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 18:29:32,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:29:32,634 INFO L85 PathProgramCache]: Analyzing trace with hash 513814719, now seen corresponding path program 1 times [2021-11-25 18:29:32,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 18:29:32,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997957485] [2021-11-25 18:29:32,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:29:32,635 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 18:29:32,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 18:29:32,637 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 18:29:32,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-25 18:29:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:29:33,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-25 18:29:33,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:29:33,336 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-25 18:29:33,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-25 18:29:33,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-11-25 18:29:33,535 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 18:29:33,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 35 [2021-11-25 18:29:33,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 33 [2021-11-25 18:29:35,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:29:35,993 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 18:29:35,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 58 [2021-11-25 18:29:36,029 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 18:29:36,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 18 [2021-11-25 18:29:38,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:29:38,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 34 [2021-11-25 18:29:38,230 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-25 18:29:38,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:29:41,697 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_testThree_~#f2~2#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_testThree_#t~mem20#1_9| (_ BitVec 32)) (|v_returnsField_~#c~0.base_44| (_ BitVec 32)) (v_ArrVal_883 (_ BitVec 32)) (v_ArrVal_882 (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsField_~#c~0.base_44|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_882) (_ bv8 32) v_ArrVal_883))) (or (not (= (let ((.cse0 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) |v_ULTIMATE.start_testThree_#t~mem20#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testThree_#t~mem20#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testThree_#t~mem20#1_9|)))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_returnsField_~#c~0.base_44|))))) (not (= |v_ULTIMATE.start_testThree_#t~mem20#1_9| (select (select (let ((.cse2 (store |c_#memory_int| |v_returnsField_~#c~0.base_44| .cse1))) (store .cse2 |c_ULTIMATE.start_testThree_~#f2~2#1.base| (store (select .cse2 |c_ULTIMATE.start_testThree_~#f2~2#1.base|) |ULTIMATE.start_testThree_~#f2~2#1.offset| |v_ULTIMATE.start_testThree_#t~mem20#1_9|))) |c_ULTIMATE.start_testThree_~#f1~2#1.base|) |c_ULTIMATE.start_testThree_~#f1~2#1.offset|)))))) is different from false [2021-11-25 18:29:41,705 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 18:29:41,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997957485] [2021-11-25 18:29:41,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [997957485] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:29:41,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1322138732] [2021-11-25 18:29:41,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:29:41,706 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 18:29:41,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 18:29:41,708 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 18:29:41,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-25 18:29:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:29:43,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-25 18:29:43,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:29:43,531 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:29:43,554 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-25 18:29:43,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-25 18:29:43,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-11-25 18:29:43,919 INFO L354 Elim1Store]: treesize reduction 30, result has 45.5 percent of original size [2021-11-25 18:29:43,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 34 treesize of output 51 [2021-11-25 18:29:44,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 33 [2021-11-25 18:29:48,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:29:48,558 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 18:29:48,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 58 [2021-11-25 18:29:48,612 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-25 18:29:48,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 29 [2021-11-25 18:29:50,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:29:50,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 34 [2021-11-25 18:29:50,846 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-25 18:29:50,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:29:58,531 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1006 (_ BitVec 32)) (|ULTIMATE.start_testThree_~#f2~2#1.offset| (_ BitVec 32)) (v_ArrVal_1005 (_ BitVec 32)) (|v_returnsField_~#c~0.base_57| (_ BitVec 32)) (|v_ULTIMATE.start_testThree_#t~mem20#1_9| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsField_~#c~0.base_57|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_1006) (_ bv8 32) v_ArrVal_1005))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| |v_returnsField_~#c~0.base_57|)))))) (not (= |v_ULTIMATE.start_testThree_#t~mem20#1_9| (select (select (let ((.cse0 (store |c_#memory_int| |v_returnsField_~#c~0.base_57| .cse1))) (store .cse0 |c_ULTIMATE.start_testThree_~#f2~2#1.base| (store (select .cse0 |c_ULTIMATE.start_testThree_~#f2~2#1.base|) |ULTIMATE.start_testThree_~#f2~2#1.offset| |v_ULTIMATE.start_testThree_#t~mem20#1_9|))) |c_ULTIMATE.start_testThree_~#f1~2#1.base|) |c_ULTIMATE.start_testThree_~#f1~2#1.offset|))) (not (= (let ((.cse2 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (fp ((_ extract 31 31) |v_ULTIMATE.start_testThree_#t~mem20#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testThree_#t~mem20#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testThree_#t~mem20#1_9|))))))) is different from false [2021-11-25 18:29:58,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1322138732] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:29:58,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372164145] [2021-11-25 18:29:58,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:29:58,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:29:58,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:29:58,541 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:29:58,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-25 18:29:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:29:58,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-25 18:29:58,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:29:58,791 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-25 18:29:58,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-25 18:29:58,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-11-25 18:29:59,004 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 18:29:59,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 35 [2021-11-25 18:29:59,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 33 [2021-11-25 18:30:01,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:01,501 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 18:30:01,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 58 [2021-11-25 18:30:01,529 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 18:30:01,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 22 [2021-11-25 18:30:01,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:01,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 34 [2021-11-25 18:30:01,613 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-25 18:30:01,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:30:05,195 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_testThree_~#f2~2#1.offset| (_ BitVec 32)) (|v_returnsField_~#c~0.base_68| (_ BitVec 32)) (|v_ULTIMATE.start_testThree_#t~mem20#1_9| (_ BitVec 32)) (v_ArrVal_1132 (_ BitVec 32)) (v_ArrVal_1133 (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsField_~#c~0.base_68|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_1132) (_ bv8 32) v_ArrVal_1133))) (or (not (= (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |v_returnsField_~#c~0.base_68|))))) (_ bv0 1))) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testThree_#t~mem20#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testThree_#t~mem20#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testThree_#t~mem20#1_9|)) (let ((.cse0 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))) (not (= |v_ULTIMATE.start_testThree_#t~mem20#1_9| (select (select (let ((.cse2 (store |c_#memory_int| |v_returnsField_~#c~0.base_68| .cse1))) (store .cse2 |c_ULTIMATE.start_testThree_~#f2~2#1.base| (store (select .cse2 |c_ULTIMATE.start_testThree_~#f2~2#1.base|) |ULTIMATE.start_testThree_~#f2~2#1.offset| |v_ULTIMATE.start_testThree_#t~mem20#1_9|))) |c_ULTIMATE.start_testThree_~#f1~2#1.base|) |c_ULTIMATE.start_testThree_~#f1~2#1.offset|)))))) is different from false [2021-11-25 18:30:05,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372164145] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:30:05,202 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:30:05,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 15 [2021-11-25 18:30:05,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16822695] [2021-11-25 18:30:05,203 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:30:05,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-25 18:30:05,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 18:30:05,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-25 18:30:05,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=225, Unknown=8, NotChecked=96, Total=380 [2021-11-25 18:30:05,205 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand has 15 states, 11 states have (on average 2.727272727272727) internal successors, (30), 9 states have internal predecessors, (30), 5 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2021-11-25 18:30:05,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:30:05,609 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2021-11-25 18:30:05,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 18:30:05,610 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 2.727272727272727) internal successors, (30), 9 states have internal predecessors, (30), 5 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 51 [2021-11-25 18:30:05,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:30:05,611 INFO L225 Difference]: With dead ends: 43 [2021-11-25 18:30:05,611 INFO L226 Difference]: Without dead ends: 0 [2021-11-25 18:30:05,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 135 SyntacticMatches, 9 SemanticMatches, 19 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 27.2s TimeCoverageRelationStatistics Valid=56, Invalid=254, Unknown=8, NotChecked=102, Total=420 [2021-11-25 18:30:05,613 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 2 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 82 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:30:05,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 136 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 45 Invalid, 0 Unknown, 82 Unchecked, 0.3s Time] [2021-11-25 18:30:05,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-25 18:30:05,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-25 18:30:05,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:05,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-25 18:30:05,616 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2021-11-25 18:30:05,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:30:05,616 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-25 18:30:05,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 2.727272727272727) internal successors, (30), 9 states have internal predecessors, (30), 5 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2021-11-25 18:30:05,617 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-25 18:30:05,617 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 18:30:05,620 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-11-25 18:30:05,620 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2021-11-25 18:30:05,621 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2021-11-25 18:30:05,621 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-11-25 18:30:05,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-25 18:30:05,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-11-25 18:30:06,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-25 18:30:06,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:30:06,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-25 18:30:06,565 INFO L854 garLoopResultBuilder]: At program point returnsStructureENTRY(lines 127 135) the Hoare annotation is: (and (= |old(#valid)| |#valid|) (= |old(#memory_int)| |#memory_int|)) [2021-11-25 18:30:06,565 INFO L858 garLoopResultBuilder]: For program point returnsStructureFINAL(lines 127 135) no Hoare annotation was computed. [2021-11-25 18:30:06,565 INFO L858 garLoopResultBuilder]: For program point returnsStructureEXIT(lines 127 135) no Hoare annotation was computed. [2021-11-25 18:30:06,566 INFO L858 garLoopResultBuilder]: For program point returnsFieldEXIT(lines 117 125) no Hoare annotation was computed. [2021-11-25 18:30:06,566 INFO L854 garLoopResultBuilder]: At program point returnsFieldENTRY(lines 117 125) the Hoare annotation is: (and (= |old(#valid)| |#valid|) (= |old(#memory_int)| |#memory_int|)) [2021-11-25 18:30:06,566 INFO L858 garLoopResultBuilder]: For program point returnsFieldFINAL(lines 117 125) no Hoare annotation was computed. [2021-11-25 18:30:06,566 INFO L854 garLoopResultBuilder]: At program point L159(line 159) the Hoare annotation is: (and (exists ((v_ArrVal_514 (_ BitVec 1))) (let ((.cse0 (bvneg (bvneg v_ArrVal_514)))) (and (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg .cse0))) (= (_ bv0 1) (bvadd .cse0 (select |#valid| |ULTIMATE.start_testTwo_~#f1~1#1.base|)))))) (exists ((v_arrayElimCell_85 (_ BitVec 1))) (let ((.cse1 (bvneg v_arrayElimCell_85))) (and (= (_ bv0 1) (bvadd (bvneg .cse1) (_ bv1 1))) (= (_ bv0 1) (bvadd (select |#valid| |ULTIMATE.start_testTwo_~#f2~1#1.base|) .cse1))))) (not (= |ULTIMATE.start_testTwo_~#f1~1#1.base| |ULTIMATE.start_testTwo_~#f2~1#1.base|)) (= |ULTIMATE.start_testTwo_~#f1~1#1.offset| (_ bv0 32)) (exists ((|v_returnsField_~#c~0.base_6| (_ BitVec 32))) (and (= (select (select |#memory_int| |v_returnsField_~#c~0.base_6|) (_ bv0 32)) (_ bv0 32)) (not (= |v_returnsField_~#c~0.base_6| |ULTIMATE.start_testTwo_~#f2~1#1.base|)) (not (= |ULTIMATE.start_testTwo_~#f1~1#1.base| |v_returnsField_~#c~0.base_6|)))) (= (let ((.cse2 (select (select |#memory_int| |ULTIMATE.start_testTwo_~#f1~1#1.base|) |ULTIMATE.start_testTwo_~#f1~1#1.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))) [2021-11-25 18:30:06,566 INFO L858 garLoopResultBuilder]: For program point L159-1(line 159) no Hoare annotation was computed. [2021-11-25 18:30:06,566 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 156) no Hoare annotation was computed. [2021-11-25 18:30:06,566 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-25 18:30:06,566 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-25 18:30:06,566 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-25 18:30:06,567 INFO L858 garLoopResultBuilder]: For program point L156(line 156) no Hoare annotation was computed. [2021-11-25 18:30:06,567 INFO L858 garLoopResultBuilder]: For program point L156-1(line 156) no Hoare annotation was computed. [2021-11-25 18:30:06,567 INFO L854 garLoopResultBuilder]: At program point L156-3(line 156) the Hoare annotation is: (and (= (_ bv0 1) (bvadd (bvneg (select |#valid| |ULTIMATE.start_testTwo_~#f2~1#1.base|)) (_ bv1 1))) (not (= |ULTIMATE.start_testTwo_~#f1~1#1.base| |ULTIMATE.start_testTwo_~#f2~1#1.base|)) (= |ULTIMATE.start_testTwo_~#f1~1#1.offset| (_ bv0 32)) (exists ((v_ArrVal_514 (_ BitVec 1))) (let ((.cse0 (bvneg v_ArrVal_514))) (and (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg .cse0)))) (= (_ bv0 1) (bvadd .cse0 (select |#valid| |ULTIMATE.start_testTwo_~#f1~1#1.base|))))))) [2021-11-25 18:30:06,567 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 144) no Hoare annotation was computed. [2021-11-25 18:30:06,567 INFO L858 garLoopResultBuilder]: For program point L144(line 144) no Hoare annotation was computed. [2021-11-25 18:30:06,567 INFO L858 garLoopResultBuilder]: For program point L144-1(line 144) no Hoare annotation was computed. [2021-11-25 18:30:06,567 INFO L858 garLoopResultBuilder]: For program point L144-3(line 144) no Hoare annotation was computed. [2021-11-25 18:30:06,567 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-11-25 18:30:06,567 INFO L858 garLoopResultBuilder]: For program point L173-1(line 173) no Hoare annotation was computed. [2021-11-25 18:30:06,567 INFO L858 garLoopResultBuilder]: For program point L173-3(line 173) no Hoare annotation was computed. [2021-11-25 18:30:06,568 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-11-25 18:30:06,568 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-25 18:30:06,568 INFO L858 garLoopResultBuilder]: For program point L161-1(line 161) no Hoare annotation was computed. [2021-11-25 18:30:06,568 INFO L858 garLoopResultBuilder]: For program point L161-3(line 161) no Hoare annotation was computed. [2021-11-25 18:30:06,568 INFO L854 garLoopResultBuilder]: At program point L153(line 153) the Hoare annotation is: (and (= |ULTIMATE.start_testTwo_~#f2~1#1.offset| (_ bv0 32)) (= (_ bv0 1) (bvadd (bvneg (select |#valid| |ULTIMATE.start_testTwo_~#f2~1#1.base|)) (_ bv1 1))) (not (= |ULTIMATE.start_testTwo_~#f1~1#1.base| |ULTIMATE.start_testTwo_~#f2~1#1.base|)) (= |ULTIMATE.start_testTwo_~#f1~1#1.offset| (_ bv0 32)) (exists ((v_ArrVal_514 (_ BitVec 1))) (let ((.cse0 (bvneg v_ArrVal_514))) (and (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg .cse0)))) (= (_ bv0 1) (bvadd .cse0 (select |#valid| |ULTIMATE.start_testTwo_~#f1~1#1.base|))))))) [2021-11-25 18:30:06,568 INFO L858 garLoopResultBuilder]: For program point L153-1(line 153) no Hoare annotation was computed. [2021-11-25 18:30:06,568 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 173) no Hoare annotation was computed. [2021-11-25 18:30:06,568 INFO L854 garLoopResultBuilder]: At program point L141(line 141) the Hoare annotation is: (and (= |ULTIMATE.start_testOne_~#f1~0#1.offset| (_ bv0 32)) (exists ((v_ArrVal_29 (_ BitVec 1))) (let ((.cse0 (bvneg v_ArrVal_29))) (and (= (_ bv0 1) (bvadd (bvneg (bvneg (select |#valid| |ULTIMATE.start_testOne_~#f1~0#1.base|))) (bvneg (bvneg .cse0)))) (= (_ bv0 1) (bvadd .cse0 (_ bv1 1)))))) (not (= |ULTIMATE.start_testOne_~#f1~0#1.base| |ULTIMATE.start_testOne_~#f2~0#1.base|)) (= |ULTIMATE.start_testOne_~#f2~0#1.offset| (_ bv0 32)) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (select |#valid| |ULTIMATE.start_testOne_~#f2~0#1.base|)))) (_ bv1 1)))) [2021-11-25 18:30:06,568 INFO L858 garLoopResultBuilder]: For program point L141-1(line 141) no Hoare annotation was computed. [2021-11-25 18:30:06,569 INFO L854 garLoopResultBuilder]: At program point L170(line 170) the Hoare annotation is: (and (= (_ bv0 1) (bvadd (bvneg (bvneg (select |#valid| |ULTIMATE.start_testThree_~#f1~2#1.base|))) (_ bv1 1))) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |#valid| |ULTIMATE.start_testThree_~#f2~2#1.base|))) (_ bv1 1))) (not (= |ULTIMATE.start_testThree_~#f1~2#1.base| |ULTIMATE.start_testThree_~#f2~2#1.base|))) [2021-11-25 18:30:06,569 INFO L858 garLoopResultBuilder]: For program point L170-1(line 170) no Hoare annotation was computed. [2021-11-25 18:30:06,569 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-11-25 18:30:06,569 INFO L854 garLoopResultBuilder]: At program point L154(line 154) the Hoare annotation is: (and (exists ((|v_returnsStructure_~#c~1.base_38| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_returnsStructure_~#c~1.base_38|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) (let ((.cse1 (select (select |#memory_int| |ULTIMATE.start_testTwo_~#f1~1#1.base|) |ULTIMATE.start_testTwo_~#f1~1#1.offset|))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)))) (not (= |v_returnsStructure_~#c~1.base_38| |ULTIMATE.start_testTwo_~#f1~1#1.base|)) (= .cse0 (_ bv0 32))))) (= |ULTIMATE.start_testTwo_~#f2~1#1.offset| (_ bv0 32)) (= (_ bv0 1) (bvadd (bvneg (select |#valid| |ULTIMATE.start_testTwo_~#f2~1#1.base|)) (_ bv1 1))) (not (= |ULTIMATE.start_testTwo_~#f1~1#1.base| |ULTIMATE.start_testTwo_~#f2~1#1.base|)) (= |ULTIMATE.start_testTwo_~#f1~1#1.offset| (_ bv0 32)) (exists ((v_ArrVal_514 (_ BitVec 1))) (let ((.cse2 (bvneg v_ArrVal_514))) (and (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg .cse2)))) (= (_ bv0 1) (bvadd .cse2 (select |#valid| |ULTIMATE.start_testTwo_~#f1~1#1.base|))))))) [2021-11-25 18:30:06,570 INFO L858 garLoopResultBuilder]: For program point L154-1(line 154) no Hoare annotation was computed. [2021-11-25 18:30:06,570 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 161) no Hoare annotation was computed. [2021-11-25 18:30:06,570 INFO L861 garLoopResultBuilder]: At program point L183(lines 178 184) the Hoare annotation is: true [2021-11-25 18:30:06,570 INFO L861 garLoopResultBuilder]: At program point L146(lines 138 147) the Hoare annotation is: true [2021-11-25 18:30:06,570 INFO L861 garLoopResultBuilder]: At program point L175(lines 167 176) the Hoare annotation is: true [2021-11-25 18:30:06,570 INFO L854 garLoopResultBuilder]: At program point L142(line 142) the Hoare annotation is: (and (= |ULTIMATE.start_testOne_~#f1~0#1.offset| (_ bv0 32)) (exists ((v_ArrVal_29 (_ BitVec 1)) (v_arrayElimCell_4 (_ BitVec 1))) (let ((.cse0 (bvneg v_arrayElimCell_4)) (.cse1 (bvneg v_ArrVal_29))) (and (= (_ bv0 1) (bvadd .cse0 (select |#valid| |ULTIMATE.start_testOne_~#f1~0#1.base|))) (= (_ bv0 1) (bvadd (bvneg .cse0) (bvneg (bvneg .cse1)))) (= (_ bv0 1) (bvadd .cse1 (_ bv1 1)))))) (not (= |ULTIMATE.start_testOne_~#f1~0#1.base| |ULTIMATE.start_testOne_~#f2~0#1.base|)) (= |ULTIMATE.start_testOne_~#f2~0#1.offset| (_ bv0 32)) (exists ((|v_returnsStructure_~#c~1.base_6| (_ BitVec 32))) (let ((.cse3 (select (select |#memory_int| |v_returnsStructure_~#c~1.base_6|) (_ bv0 32)))) (and (= (let ((.cse2 (select (select |#memory_int| |ULTIMATE.start_testOne_~#f1~0#1.base|) |ULTIMATE.start_testOne_~#f1~0#1.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))) (= .cse3 (_ bv0 32)) (not (= |v_returnsStructure_~#c~1.base_6| |ULTIMATE.start_testOne_~#f1~0#1.base|)) (not (= |v_returnsStructure_~#c~1.base_6| |ULTIMATE.start_testOne_~#f2~0#1.base|))))) (exists ((v_arrayElimCell_3 (_ BitVec 1))) (let ((.cse4 (bvneg (bvneg v_arrayElimCell_3)))) (and (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg .cse4))))) (_ bv1 1))) (= (_ bv0 1) (bvadd (bvneg (select |#valid| |ULTIMATE.start_testOne_~#f2~0#1.base|)) .cse4)))))) [2021-11-25 18:30:06,570 INFO L858 garLoopResultBuilder]: For program point L142-1(line 142) no Hoare annotation was computed. [2021-11-25 18:30:06,571 INFO L854 garLoopResultBuilder]: At program point L171(line 171) the Hoare annotation is: (and (exists ((v_arrayElimCell_122 (_ BitVec 1))) (let ((.cse0 (bvneg (bvneg (bvneg v_arrayElimCell_122))))) (and (= (_ bv0 1) (bvadd (bvneg (bvneg .cse0)) (_ bv1 1))) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |#valid| |ULTIMATE.start_testThree_~#f1~2#1.base|))) .cse0))))) (exists ((v_arrayElimCell_123 (_ BitVec 1))) (let ((.cse1 (bvneg v_arrayElimCell_123))) (and (= (_ bv0 1) (bvadd (bvneg (bvneg .cse1)) (_ bv1 1))) (= (_ bv0 1) (bvadd (select |#valid| |ULTIMATE.start_testThree_~#f2~2#1.base|) .cse1))))) (not (= |ULTIMATE.start_testThree_~#f1~2#1.base| |ULTIMATE.start_testThree_~#f2~2#1.base|)) (exists ((|v_returnsField_~#c~0.base_38| (_ BitVec 32))) (let ((.cse2 (select (select |#memory_int| |v_returnsField_~#c~0.base_38|) (_ bv0 32)))) (and (= .cse2 (_ bv0 32)) (not (= |ULTIMATE.start_testThree_~#f2~2#1.base| |v_returnsField_~#c~0.base_38|)) (= (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)) (let ((.cse3 (select (select |#memory_int| |ULTIMATE.start_testThree_~#f1~2#1.base|) |ULTIMATE.start_testThree_~#f1~2#1.offset|))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3)))) (not (= |ULTIMATE.start_testThree_~#f1~2#1.base| |v_returnsField_~#c~0.base_38|)))))) [2021-11-25 18:30:06,571 INFO L858 garLoopResultBuilder]: For program point L171-1(line 171) no Hoare annotation was computed. [2021-11-25 18:30:06,571 INFO L861 garLoopResultBuilder]: At program point L163(lines 150 164) the Hoare annotation is: true [2021-11-25 18:30:06,575 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-25 18:30:06,577 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 18:30:06,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:30:06 BoogieIcfgContainer [2021-11-25 18:30:06,585 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 18:30:06,586 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 18:30:06,586 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 18:30:06,586 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 18:30:06,587 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:27:13" (3/4) ... [2021-11-25 18:30:06,590 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 18:30:06,598 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure returnsStructure [2021-11-25 18:30:06,598 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure returnsField [2021-11-25 18:30:06,606 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-11-25 18:30:06,607 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-25 18:30:06,607 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-25 18:30:06,608 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-25 18:30:06,662 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 18:30:06,662 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 18:30:06,663 INFO L158 Benchmark]: Toolchain (without parser) took 174789.16ms. Allocated memory was 54.5MB in the beginning and 88.1MB in the end (delta: 33.6MB). Free memory was 32.8MB in the beginning and 56.2MB in the end (delta: -23.4MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2021-11-25 18:30:06,663 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 54.5MB. Free memory was 35.9MB in the beginning and 35.9MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:30:06,664 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.38ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 32.6MB in the beginning and 50.8MB in the end (delta: -18.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-25 18:30:06,665 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.64ms. Allocated memory is still 69.2MB. Free memory was 50.6MB in the beginning and 48.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:30:06,665 INFO L158 Benchmark]: Boogie Preprocessor took 49.49ms. Allocated memory is still 69.2MB. Free memory was 48.7MB in the beginning and 47.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:30:06,666 INFO L158 Benchmark]: RCFGBuilder took 644.14ms. Allocated memory is still 69.2MB. Free memory was 46.8MB in the beginning and 49.3MB in the end (delta: -2.5MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2021-11-25 18:30:06,666 INFO L158 Benchmark]: TraceAbstraction took 173559.80ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 49.0MB in the beginning and 60.4MB in the end (delta: -11.3MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. [2021-11-25 18:30:06,667 INFO L158 Benchmark]: Witness Printer took 76.60ms. Allocated memory is still 88.1MB. Free memory was 60.4MB in the beginning and 56.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-25 18:30:06,669 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 54.5MB. Free memory was 35.9MB in the beginning and 35.9MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.38ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 32.6MB in the beginning and 50.8MB in the end (delta: -18.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.64ms. Allocated memory is still 69.2MB. Free memory was 50.6MB in the beginning and 48.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.49ms. Allocated memory is still 69.2MB. Free memory was 48.7MB in the beginning and 47.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 644.14ms. Allocated memory is still 69.2MB. Free memory was 46.8MB in the beginning and 49.3MB in the end (delta: -2.5MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * TraceAbstraction took 173559.80ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 49.0MB in the beginning and 60.4MB in the end (delta: -11.3MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. * Witness Printer took 76.60ms. Allocated memory is still 88.1MB. Free memory was 60.4MB in the beginning and 56.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 144]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 156]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 161]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 173]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 45 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 173.5s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 894 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 647 IncrementalHoareTripleChecker+Unchecked, 769 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 119 IncrementalHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 125 mSDtfsCounter, 119 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 446 GetRequests, 299 SyntacticMatches, 41 SemanticMatches, 106 ConstructedPredicates, 14 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 147.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 26 PreInvPairs, 36 NumberOfFragments, 547 HoareAnnotationTreeSize, 26 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 37 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 4.9s SatisfiabilityAnalysisTime, 143.2s InterpolantComputationTime, 390 NumberOfCodeBlocks, 390 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 378 ConstructedInterpolants, 120 QuantifiedInterpolants, 6478 SizeOfPredicates, 121 NumberOfNonLiveVariables, 2652 ConjunctsInSsa, 573 ConjunctsInUnsatCore, 12 InterpolantComputations, 0 PerfectInterpolantSequences, 208/234 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 150]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-25 18:30:06,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6a16b-8c9c-4d2f-938d-3ffb2497fff4/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE