./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_traffic_light_example.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_traffic_light_example.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 86f9a9405675d4b21cb240ccea7622953d206e12e477e20eacb84951191b2db2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:55:20,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:55:20,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:55:20,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:55:20,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:55:20,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:55:20,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:55:20,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:55:20,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:55:20,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:55:20,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:55:20,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:55:20,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:55:20,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:55:20,509 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:55:20,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:55:20,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:55:20,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:55:20,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:55:20,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:55:20,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:55:20,530 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:55:20,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:55:20,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:55:20,538 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:55:20,538 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:55:20,538 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:55:20,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:55:20,540 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:55:20,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:55:20,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:55:20,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:55:20,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:55:20,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:55:20,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:55:20,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:55:20,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:55:20,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:55:20,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:55:20,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:55:20,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:55:20,551 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:55:20,591 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:55:20,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:55:20,593 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:55:20,593 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:55:20,594 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:55:20,594 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:55:20,594 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:55:20,595 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:55:20,595 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:55:20,595 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:55:20,596 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:55:20,596 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:55:20,596 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:55:20,596 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:55:20,597 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:55:20,597 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:55:20,597 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:55:20,597 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:55:20,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:55:20,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:55:20,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:55:20,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:55:20,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:55:20,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:55:20,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:55:20,601 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:55:20,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:55:20,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:55:20,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:55:20,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:55:20,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:55:20,602 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:55:20,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:55:20,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:55:20,603 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:55:20,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:55:20,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:55:20,603 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:55:20,603 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86f9a9405675d4b21cb240ccea7622953d206e12e477e20eacb84951191b2db2 [2022-11-19 07:55:20,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:55:20,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:55:20,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:55:20,945 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:55:20,946 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:55:20,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_traffic_light_example.c [2022-11-19 07:55:21,023 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/data/2db658b2d/0c847920b1b34bf1a2cf077b58593225/FLAGca26addc4 [2022-11-19 07:55:21,588 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:55:21,589 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_traffic_light_example.c [2022-11-19 07:55:21,597 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/data/2db658b2d/0c847920b1b34bf1a2cf077b58593225/FLAGca26addc4 [2022-11-19 07:55:21,925 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/data/2db658b2d/0c847920b1b34bf1a2cf077b58593225 [2022-11-19 07:55:21,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:55:21,929 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:55:21,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:55:21,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:55:21,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:55:21,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:21" (1/1) ... [2022-11-19 07:55:21,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38ac99f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:21, skipping insertion in model container [2022-11-19 07:55:21,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:21" (1/1) ... [2022-11-19 07:55:21,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:55:21,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:55:22,150 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_traffic_light_example.c[1107,1120] [2022-11-19 07:55:22,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:55:22,213 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:55:22,224 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_traffic_light_example.c[1107,1120] [2022-11-19 07:55:22,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:55:22,277 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:55:22,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:22 WrapperNode [2022-11-19 07:55:22,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:55:22,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:55:22,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:55:22,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:55:22,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:22" (1/1) ... [2022-11-19 07:55:22,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:22" (1/1) ... [2022-11-19 07:55:22,347 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 222 [2022-11-19 07:55:22,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:55:22,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:55:22,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:55:22,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:55:22,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:22" (1/1) ... [2022-11-19 07:55:22,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:22" (1/1) ... [2022-11-19 07:55:22,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:22" (1/1) ... [2022-11-19 07:55:22,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:22" (1/1) ... [2022-11-19 07:55:22,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:22" (1/1) ... [2022-11-19 07:55:22,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:22" (1/1) ... [2022-11-19 07:55:22,394 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:22" (1/1) ... [2022-11-19 07:55:22,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:22" (1/1) ... [2022-11-19 07:55:22,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:55:22,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:55:22,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:55:22,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:55:22,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:22" (1/1) ... [2022-11-19 07:55:22,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:55:22,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:55:22,445 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:55:22,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:55:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:55:22,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:55:22,577 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:55:22,584 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:55:23,044 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:55:23,297 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:55:23,297 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:55:23,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:23 BoogieIcfgContainer [2022-11-19 07:55:23,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:55:23,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:55:23,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:55:23,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:55:23,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:55:21" (1/3) ... [2022-11-19 07:55:23,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf60739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:23, skipping insertion in model container [2022-11-19 07:55:23,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:22" (2/3) ... [2022-11-19 07:55:23,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf60739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:23, skipping insertion in model container [2022-11-19 07:55:23,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:23" (3/3) ... [2022-11-19 07:55:23,314 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_traffic_light_example.c [2022-11-19 07:55:23,334 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:55:23,334 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:55:23,409 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:55:23,426 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6b7955d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:55:23,427 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:55:23,431 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:55:23,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 07:55:23,440 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:55:23,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 07:55:23,441 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:55:23,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:55:23,449 INFO L85 PathProgramCache]: Analyzing trace with hash 4093124, now seen corresponding path program 1 times [2022-11-19 07:55:23,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:55:23,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206245210] [2022-11-19 07:55:23,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:55:23,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:55:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:55:23,657 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:55:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:55:23,773 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 07:55:23,775 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:55:23,776 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:55:23,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:55:23,782 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 07:55:23,788 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:55:23,818 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:55:23,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:55:23 BoogieIcfgContainer [2022-11-19 07:55:23,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:55:23,830 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:55:23,830 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:55:23,831 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:55:23,833 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:23" (3/4) ... [2022-11-19 07:55:23,836 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 07:55:23,836 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:55:23,838 INFO L158 Benchmark]: Toolchain (without parser) took 1908.48ms. Allocated memory is still 161.5MB. Free memory was 129.7MB in the beginning and 112.4MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2022-11-19 07:55:23,839 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 98.6MB. Free memory was 53.5MB in the beginning and 53.4MB in the end (delta: 78.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:55:23,840 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.57ms. Allocated memory is still 161.5MB. Free memory was 129.7MB in the beginning and 133.9MB in the end (delta: -4.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 07:55:23,841 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.76ms. Allocated memory is still 161.5MB. Free memory was 133.9MB in the beginning and 130.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:55:23,842 INFO L158 Benchmark]: Boogie Preprocessor took 62.98ms. Allocated memory is still 161.5MB. Free memory was 130.8MB in the beginning and 129.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:55:23,848 INFO L158 Benchmark]: RCFGBuilder took 888.76ms. Allocated memory is still 161.5MB. Free memory was 129.2MB in the beginning and 131.3MB in the end (delta: -2.1MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. [2022-11-19 07:55:23,849 INFO L158 Benchmark]: TraceAbstraction took 524.84ms. Allocated memory is still 161.5MB. Free memory was 130.8MB in the beginning and 112.4MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-19 07:55:23,850 INFO L158 Benchmark]: Witness Printer took 6.83ms. Allocated memory is still 161.5MB. Free memory was 112.4MB in the beginning and 112.4MB in the end (delta: 5.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:55:23,859 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 98.6MB. Free memory was 53.5MB in the beginning and 53.4MB in the end (delta: 78.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.57ms. Allocated memory is still 161.5MB. Free memory was 129.7MB in the beginning and 133.9MB in the end (delta: -4.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.76ms. Allocated memory is still 161.5MB. Free memory was 133.9MB in the beginning and 130.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.98ms. Allocated memory is still 161.5MB. Free memory was 130.8MB in the beginning and 129.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 888.76ms. Allocated memory is still 161.5MB. Free memory was 129.2MB in the beginning and 131.3MB in the end (delta: -2.1MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. * TraceAbstraction took 524.84ms. Allocated memory is still 161.5MB. Free memory was 130.8MB in the beginning and 112.4MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 6.83ms. Allocated memory is still 161.5MB. Free memory was 112.4MB in the beginning and 112.4MB in the end (delta: 5.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 71, overapproximation of bitwiseAnd at line 64. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 8); [L29] const SORT_4 msb_SORT_4 = (SORT_4)1 << (8 - 1); [L31] const SORT_16 mask_SORT_16 = (SORT_16)-1 >> (sizeof(SORT_16) * 8 - 2); [L32] const SORT_16 msb_SORT_16 = (SORT_16)1 << (2 - 1); [L34] const SORT_44 mask_SORT_44 = (SORT_44)-1 >> (sizeof(SORT_44) * 8 - 32); [L35] const SORT_44 msb_SORT_44 = (SORT_44)1 << (32 - 1); [L37] const SORT_4 var_5 = 0; [L38] const SORT_4 var_8 = 255; [L39] const SORT_1 var_12 = 1; [L40] const SORT_16 var_17 = 0; [L41] const SORT_4 var_21 = 1; [L42] const SORT_4 var_23 = 63; [L43] const SORT_4 var_29 = 7; [L44] const SORT_16 var_35 = 2; [L45] const SORT_16 var_38 = 1; [L46] const SORT_44 var_45 = 0; [L47] const SORT_44 var_46 = 1; [L48] const SORT_44 var_52 = 2; [L50] SORT_1 input_2; [L51] SORT_1 input_3; [L53] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L54] SORT_16 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_16; [L56] SORT_4 init_7_arg_1 = var_5; [L57] state_6 = init_7_arg_1 [L58] SORT_16 init_19_arg_1 = var_17; [L59] state_18 = init_19_arg_1 VAL [init_19_arg_1=0, init_7_arg_1=0, mask_SORT_1=1, mask_SORT_16=3, mask_SORT_4=255, mask_SORT_44=4294967295, msb_SORT_1=1, msb_SORT_16=2, msb_SORT_4=128, msb_SORT_44=2147483648, state_18=0, state_6=0, var_12=1, var_17=0, var_21=1, var_23=63, var_29=7, var_35=2, var_38=1, var_45=0, var_46=1, var_5=0, var_52=2, var_8=255] [L62] input_2 = __VERIFIER_nondet_uchar() [L63] input_3 = __VERIFIER_nondet_uchar() [L64] input_3 = input_3 & mask_SORT_1 [L67] SORT_4 var_9_arg_0 = state_6; [L68] SORT_4 var_9_arg_1 = var_8; [L69] SORT_1 var_9 = var_9_arg_0 != var_9_arg_1; [L70] SORT_1 var_13_arg_0 = var_9; [L71] SORT_1 var_13 = ~var_13_arg_0; [L72] SORT_1 var_14_arg_0 = var_12; [L73] SORT_1 var_14_arg_1 = var_13; [L74] SORT_1 var_14 = var_14_arg_0 & var_14_arg_1; [L75] var_14 = var_14 & mask_SORT_1 [L76] SORT_1 bad_15_arg_0 = var_14; [L77] CALL __VERIFIER_assert(!(bad_15_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 07:55:23,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_traffic_light_example.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 86f9a9405675d4b21cb240ccea7622953d206e12e477e20eacb84951191b2db2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:55:26,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:55:26,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:55:26,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:55:26,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:55:26,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:55:26,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:55:26,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:55:26,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:55:26,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:55:26,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:55:26,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:55:26,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:55:26,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:55:26,313 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:55:26,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:55:26,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:55:26,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:55:26,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:55:26,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:55:26,330 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:55:26,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:55:26,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:55:26,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:55:26,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:55:26,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:55:26,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:55:26,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:55:26,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:55:26,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:55:26,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:55:26,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:55:26,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:55:26,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:55:26,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:55:26,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:55:26,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:55:26,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:55:26,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:55:26,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:55:26,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:55:26,362 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 07:55:26,394 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:55:26,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:55:26,395 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:55:26,395 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:55:26,396 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:55:26,396 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:55:26,396 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:55:26,397 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:55:26,397 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:55:26,397 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:55:26,397 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:55:26,398 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:55:26,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:55:26,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:55:26,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:55:26,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:55:26,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:55:26,400 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:55:26,400 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 07:55:26,400 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 07:55:26,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:55:26,401 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:55:26,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:55:26,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:55:26,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 07:55:26,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:55:26,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:55:26,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:55:26,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:55:26,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:55:26,403 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 07:55:26,403 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 07:55:26,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:55:26,404 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:55:26,404 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 07:55:26,404 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_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86f9a9405675d4b21cb240ccea7622953d206e12e477e20eacb84951191b2db2 [2022-11-19 07:55:26,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:55:26,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:55:26,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:55:26,764 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:55:26,765 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:55:26,766 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_traffic_light_example.c [2022-11-19 07:55:26,836 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/data/7b962e471/a3f581344b714ac9b80d2f932e39d7e0/FLAGac872012c [2022-11-19 07:55:27,294 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:55:27,294 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_traffic_light_example.c [2022-11-19 07:55:27,305 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/data/7b962e471/a3f581344b714ac9b80d2f932e39d7e0/FLAGac872012c [2022-11-19 07:55:27,688 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/data/7b962e471/a3f581344b714ac9b80d2f932e39d7e0 [2022-11-19 07:55:27,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:55:27,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:55:27,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:55:27,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:55:27,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:55:27,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:27" (1/1) ... [2022-11-19 07:55:27,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8973193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:27, skipping insertion in model container [2022-11-19 07:55:27,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:27" (1/1) ... [2022-11-19 07:55:27,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:55:27,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:55:27,907 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_traffic_light_example.c[1107,1120] [2022-11-19 07:55:27,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:55:27,996 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:55:28,042 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_traffic_light_example.c[1107,1120] [2022-11-19 07:55:28,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:55:28,131 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:55:28,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:28 WrapperNode [2022-11-19 07:55:28,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:55:28,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:55:28,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:55:28,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:55:28,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:28" (1/1) ... [2022-11-19 07:55:28,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:28" (1/1) ... [2022-11-19 07:55:28,174 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 180 [2022-11-19 07:55:28,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:55:28,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:55:28,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:55:28,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:55:28,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:28" (1/1) ... [2022-11-19 07:55:28,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:28" (1/1) ... [2022-11-19 07:55:28,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:28" (1/1) ... [2022-11-19 07:55:28,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:28" (1/1) ... [2022-11-19 07:55:28,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:28" (1/1) ... [2022-11-19 07:55:28,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:28" (1/1) ... [2022-11-19 07:55:28,207 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:28" (1/1) ... [2022-11-19 07:55:28,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:28" (1/1) ... [2022-11-19 07:55:28,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:55:28,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:55:28,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:55:28,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:55:28,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:28" (1/1) ... [2022-11-19 07:55:28,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:55:28,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:55:28,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:55:28,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:55:28,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:55:28,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:55:28,383 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:55:28,385 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:55:28,805 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:55:28,811 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:55:28,811 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:55:28,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:28 BoogieIcfgContainer [2022-11-19 07:55:28,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:55:28,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:55:28,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:55:28,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:55:28,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:55:27" (1/3) ... [2022-11-19 07:55:28,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1394d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:28, skipping insertion in model container [2022-11-19 07:55:28,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:28" (2/3) ... [2022-11-19 07:55:28,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1394d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:28, skipping insertion in model container [2022-11-19 07:55:28,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:28" (3/3) ... [2022-11-19 07:55:28,822 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_traffic_light_example.c [2022-11-19 07:55:28,841 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:55:28,841 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:55:28,891 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:55:28,898 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@70d2a5df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:55:28,899 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:55:28,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:55:28,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 07:55:28,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:55:28,910 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 07:55:28,910 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:55:28,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:55:28,916 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-19 07:55:28,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:55:28,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791424188] [2022-11-19 07:55:28,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:55:28,930 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:55:28,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:55:28,937 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:55:28,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 07:55:29,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:55:29,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-19 07:55:29,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:55:29,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:55:29,243 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:55:29,244 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:55:29,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791424188] [2022-11-19 07:55:29,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791424188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:55:29,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:55:29,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:55:29,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709727553] [2022-11-19 07:55:29,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:55:29,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:55:29,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:55:29,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:55:29,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:55:29,281 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:55:29,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:55:29,341 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-19 07:55:29,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:55:29,344 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-19 07:55:29,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:55:29,351 INFO L225 Difference]: With dead ends: 20 [2022-11-19 07:55:29,351 INFO L226 Difference]: Without dead ends: 11 [2022-11-19 07:55:29,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:55:29,357 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:55:29,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:55:29,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-19 07:55:29,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-19 07:55:29,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:55:29,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-19 07:55:29,390 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-19 07:55:29,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:55:29,390 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-19 07:55:29,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:55:29,391 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-19 07:55:29,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 07:55:29,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:55:29,391 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-19 07:55:29,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-19 07:55:29,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:55:29,603 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:55:29,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:55:29,604 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-19 07:55:29,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:55:29,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1584418536] [2022-11-19 07:55:29,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:55:29,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:55:29,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:55:29,608 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:55:29,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 07:55:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:55:29,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 51 conjunts are in the unsatisfiable core [2022-11-19 07:55:29,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:55:30,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:55:30,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:55:33,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:55:33,629 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:55:33,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1584418536] [2022-11-19 07:55:33,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1584418536] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:55:33,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [847486987] [2022-11-19 07:55:33,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:55:33,630 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:55:33,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:55:33,633 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:55:33,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-19 07:55:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:55:33,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 62 conjunts are in the unsatisfiable core [2022-11-19 07:55:33,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:55:34,222 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:55:34,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:55:36,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:55:36,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [847486987] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:55:36,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591730379] [2022-11-19 07:55:36,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:55:36,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:55:36,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:55:36,237 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:55:36,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:55:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:55:36,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-19 07:55:36,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:55:36,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:55:36,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:55:38,416 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:55:38,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591730379] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:55:38,416 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:55:38,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 13 [2022-11-19 07:55:38,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287458755] [2022-11-19 07:55:38,418 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:55:38,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 07:55:38,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:55:38,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 07:55:38,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-11-19 07:55:38,420 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:55:38,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:55:38,578 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-19 07:55:38,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:55:38,579 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 07:55:38,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:55:38,579 INFO L225 Difference]: With dead ends: 16 [2022-11-19 07:55:38,579 INFO L226 Difference]: Without dead ends: 14 [2022-11-19 07:55:38,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2022-11-19 07:55:38,581 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 10 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:55:38,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 22 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 13 Unchecked, 0.0s Time] [2022-11-19 07:55:38,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-19 07:55:38,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-19 07:55:38,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:55:38,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-19 07:55:38,586 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-19 07:55:38,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:55:38,587 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-19 07:55:38,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:55:38,587 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-19 07:55:38,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:55:38,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:55:38,588 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-19 07:55:38,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-19 07:55:38,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:55:39,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:55:39,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:55:39,193 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:55:39,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:55:39,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-19 07:55:39,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:55:39,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1860334593] [2022-11-19 07:55:39,195 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:55:39,195 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:55:39,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:55:39,197 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:55:39,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-19 07:55:39,351 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 07:55:39,351 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:55:39,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 129 conjunts are in the unsatisfiable core [2022-11-19 07:55:39,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:55:40,877 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:55:40,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:00:22,774 WARN L233 SmtUtils]: Spent 3.89m on a formula simplification. DAG size of input: 627 DAG size of output: 319 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:01:01,780 WARN L233 SmtUtils]: Spent 35.28s on a formula simplification. DAG size of input: 315 DAG size of output: 301 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:01:01,811 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:01:01,811 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:01:01,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1860334593] [2022-11-19 08:01:01,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1860334593] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:01:01,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1173205913] [2022-11-19 08:01:01,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:01:01,812 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:01:01,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:01:01,819 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:01:01,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-19 08:01:02,098 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:01:02,098 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:01:02,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 138 conjunts are in the unsatisfiable core [2022-11-19 08:01:02,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:04,155 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:01:04,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:06:33,558 WARN L233 SmtUtils]: Spent 4.71m on a formula simplification. DAG size of input: 555 DAG size of output: 373 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:06:35,561 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:06:35,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1173205913] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:06:35,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420432606] [2022-11-19 08:06:35,562 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:06:35,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:06:35,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:06:35,565 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:06:35,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 08:06:35,729 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:06:35,729 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:06:35,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 134 conjunts are in the unsatisfiable core [2022-11-19 08:06:35,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:06:38,035 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:06:38,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:06:49,489 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse19 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|)) (.cse22 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_5~0#1|))) (let ((.cse21 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_8~0#1|)) (.cse41 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) .cse22))))))) (let ((.cse58 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse39 (= .cse21 .cse41))) (let ((.cse59 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_12~0#1|)) (.cse25 (not .cse39)) (.cse17 (forall ((|v_ULTIMATE.start_main_~var_14_arg_0~0#1_12| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse58 ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv255 32) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_14_arg_0~0#1_12|))))))))) (.cse53 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_23~0#1|))))))))) .cse19)))) (.cse56 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_29~0#1|))))))))) .cse19))))) (let ((.cse57 (= .cse21 .cse56)) (.cse31 (forall ((|v_ULTIMATE.start_main_~var_14_arg_0~0#1_12| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse58 ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv254 32) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_14_arg_0~0#1_12|)))))) (_ bv0 8)))) (.cse54 (= .cse21 .cse53)) (.cse42 (or .cse25 .cse17)) (.cse47 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_6~0#1|)) (.cse18 (not (= ((_ extract 7 0) (bvand .cse58 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse59 (_ bv255 32)))))) (_ bv0 8))))) (let ((.cse44 (or (forall ((|v_ULTIMATE.start_main_~var_31_arg_2~0#1_16| (_ BitVec 8))) (= .cse22 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_31_arg_2~0#1_16|)))))))))))))) .cse18)) (.cse10 (= .cse47 .cse22)) (.cse27 (bvneg ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_21~0#1|))) (.cse30 (and (or (forall ((|v_ULTIMATE.start_main_~var_40_arg_0~0#1_15| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse58 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_40_arg_0~0#1_15|) (_ bv0 32)))))) (_ bv0 8))) (not .cse57)) .cse31 (or (not .cse54) .cse17) .cse42)) (.cse24 (not (= ((_ extract 7 0) (bvand .cse58 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse59 (_ bv254 32)))))) (_ bv0 8))))) (let ((.cse1 (or (let ((.cse55 (= .cse22 .cse56))) (and (or .cse55 (and .cse31 (or .cse17 (not (= .cse21 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse27 .cse56))))))))))) .cse19)))))) (or (not (= .cse21 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse56))))))))))) .cse17) .cse42)) (or (not .cse55) .cse30))) (and (or .cse57 .cse24) .cse18))) (.cse3 (or (let ((.cse52 (= .cse53 .cse22))) (and (or .cse52 (and .cse31 (or (not (= .cse21 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse53))))))))))) .cse17) (or (not (= .cse21 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse27 .cse53)))))))))))))))) .cse17) .cse42)) (or .cse30 (not .cse52)))) (and .cse18 (or .cse54 .cse24)))) (.cse9 (not .cse10)) (.cse11 (or .cse25 (and (or (forall ((|v_ULTIMATE.start_main_~var_31_arg_2~0#1_16| (_ BitVec 8))) (= .cse21 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_31_arg_2~0#1_16|)))))))))))))) .cse24) .cse44) .cse17)) (.cse12 (or (and (or (forall ((|v_ULTIMATE.start_main_~var_31_arg_2~0#1_16| (_ BitVec 8))) (let ((.cse50 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_31_arg_2~0#1_16|)))))))))))))) (or (= .cse22 .cse50) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse27 .cse50)))))))))))))) .cse21)) (= .cse21 .cse50)))) .cse24) (or (forall ((|v_ULTIMATE.start_main_~var_31_arg_2~0#1_16| (_ BitVec 8))) (let ((.cse51 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_31_arg_2~0#1_16|)))))))))))))) (or (= .cse22 .cse51) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse27 .cse51)))))))))))))) .cse21))))) .cse18)) .cse17)) (.cse13 (or (forall ((|v_ULTIMATE.start_main_~var_31_arg_2~0#1_16| (_ BitVec 8))) (let ((.cse49 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_31_arg_2~0#1_16|)))))))))))))) (or (not (= .cse21 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse49))))))))))) (= .cse22 .cse49)))) .cse17 .cse18)) (.cse14 (or (and (or .cse18 (forall ((|v_ULTIMATE.start_main_~var_31_arg_2~0#1_16| (_ BitVec 8))) (not (= .cse22 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_31_arg_2~0#1_16|)))))))))))))))) (or (forall ((|v_ULTIMATE.start_main_~var_31_arg_2~0#1_16| (_ BitVec 8))) (let ((.cse48 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_31_arg_2~0#1_16|)))))))))))))) (or (= .cse21 .cse48) (not (= .cse22 .cse48))))) .cse24)) .cse30)) (.cse15 (let ((.cse46 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse27 .cse47))))))))))) .cse19))))) (or (let ((.cse45 (= .cse46 .cse22))) (and (or .cse45 (and .cse31 (or .cse17 (not (= .cse21 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse46)))))) .cse19)))))) .cse42 (or .cse17 (not (= .cse21 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse27 .cse46))))))))))) .cse19)))))))) (or (not .cse45) .cse30))) (and (or (= .cse21 .cse46) .cse24) .cse18)))) (.cse16 (or .cse31 (and (or (forall ((|v_ULTIMATE.start_main_~var_31_arg_2~0#1_16| (_ BitVec 8))) (let ((.cse43 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_31_arg_2~0#1_16|)))))))))))))) (or (= .cse22 .cse43) (= .cse21 .cse43)))) .cse24) .cse44))) (.cse8 (or (and .cse18 (or .cse39 .cse24)) (let ((.cse40 (= .cse41 .cse22))) (and (or .cse40 (and .cse31 (or (not (= .cse21 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse27 .cse41)))))))))))))))) .cse17) (or (not (= .cse21 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse41))))))))))) .cse17) .cse42)) (or (not .cse40) .cse30))))) (.cse0 (= ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_17~0#1|) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_18~0#1|)))) (and (or .cse0 (let ((.cse23 (or (forall ((|v_ULTIMATE.start_main_~var_27_arg_2~0#1_16| (_ BitVec 8))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_27_arg_2~0#1_16|)))))))))) .cse22)) .cse18))) (let ((.cse2 (or .cse31 (and .cse23 (or (forall ((|v_ULTIMATE.start_main_~var_27_arg_2~0#1_16| (_ BitVec 8))) (let ((.cse32 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_27_arg_2~0#1_16|)))))))))))) (or (= .cse32 .cse22) (= .cse32 .cse21)))) .cse24)))) (.cse4 (or (and (or .cse18 (forall ((|v_ULTIMATE.start_main_~var_27_arg_2~0#1_16| (_ BitVec 8))) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_27_arg_2~0#1_16|)))))))))) .cse22)))) (or (forall ((|v_ULTIMATE.start_main_~var_27_arg_2~0#1_16| (_ BitVec 8))) (let ((.cse29 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_27_arg_2~0#1_16|)))))))))))) (or (not (= .cse29 .cse22)) (= .cse29 .cse21)))) .cse24)) .cse30)) (.cse5 (or .cse17 (and (or .cse18 (forall ((|v_ULTIMATE.start_main_~var_27_arg_2~0#1_16| (_ BitVec 8))) (let ((.cse26 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_27_arg_2~0#1_16|)))))))))))) (or (not (= .cse21 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse26 .cse27)))))))))))))))) (= .cse26 .cse22))))) (or (forall ((|v_ULTIMATE.start_main_~var_27_arg_2~0#1_16| (_ BitVec 8))) (let ((.cse28 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_27_arg_2~0#1_16|)))))))))))) (or (not (= .cse21 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse28 .cse27)))))))))))))))) (= .cse28 .cse22) (= .cse28 .cse21)))) .cse24)))) (.cse6 (or (and .cse23 (or (forall ((|v_ULTIMATE.start_main_~var_27_arg_2~0#1_16| (_ BitVec 8))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_27_arg_2~0#1_16|)))))))))) .cse21)) .cse24)) .cse25 .cse17)) (.cse7 (or .cse17 .cse18 (forall ((|v_ULTIMATE.start_main_~var_27_arg_2~0#1_16| (_ BitVec 8))) (let ((.cse20 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_27_arg_2~0#1_16|)))))))))))) (or (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse20))))))))) .cse21)) (= .cse20 .cse22))))))) (and (or (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) .cse9) (or .cse10 (and .cse11 .cse12 .cse2 .cse4 .cse5 .cse6 .cse13 .cse14 .cse15 .cse16 .cse7 .cse8)))))) (or (and (or (and .cse1 .cse3 .cse8) .cse9) (or (and (or (and (or .cse25 .cse17 (forall ((|v_ULTIMATE.start_main_~var_25_arg_2~0#1_16| (_ BitVec 8))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_2~0#1_16|)))))))))))) .cse21))) (or .cse31 (forall ((|v_ULTIMATE.start_main_~var_25_arg_2~0#1_16| (_ BitVec 8))) (let ((.cse33 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_2~0#1_16|)))))))))))))) (or (= .cse33 .cse21) (= .cse33 .cse22))))) (or .cse17 (forall ((|v_ULTIMATE.start_main_~var_25_arg_2~0#1_16| (_ BitVec 8))) (let ((.cse34 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_2~0#1_16|)))))))))))))) (or (= .cse34 .cse21) (= .cse34 .cse22) (not (= .cse21 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse34 .cse27))))))))))))))))))))) .cse24) .cse11 .cse12 (or (let ((.cse37 (forall ((|v_ULTIMATE.start_main_~var_25_arg_2~0#1_16| (_ BitVec 8))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_2~0#1_16|)))))))))))) .cse22)))) (and (or .cse17 (forall ((|v_ULTIMATE.start_main_~var_25_arg_2~0#1_16| (_ BitVec 8))) (let ((.cse35 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_2~0#1_16|)))))))))))))) (or (= .cse35 .cse22) (not (= .cse21 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse35 .cse27)))))))))))))))))))) (or .cse17 (forall ((|v_ULTIMATE.start_main_~var_25_arg_2~0#1_16| (_ BitVec 8))) (let ((.cse36 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_2~0#1_16|)))))))))))))) (or (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse36)))))) .cse19))) .cse21)) (= .cse36 .cse22))))) (or .cse25 .cse17 .cse37) (or .cse31 .cse37))) .cse18) .cse13 .cse14 .cse15 .cse16 .cse8 (or (and (or (forall ((|v_ULTIMATE.start_main_~var_25_arg_2~0#1_16| (_ BitVec 8))) (let ((.cse38 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_2~0#1_16|)))))))))))))) (or (= .cse38 .cse21) (not (= .cse38 .cse22))))) .cse24) (or .cse18 (forall ((|v_ULTIMATE.start_main_~var_25_arg_2~0#1_16| (_ BitVec 8))) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_2~0#1_16|)))))))))))) .cse22))))) .cse30)) .cse10)) (not .cse0)))))))))) is different from false [2022-11-19 08:08:03,374 WARN L233 SmtUtils]: Spent 1.17m on a formula simplification. DAG size of input: 503 DAG size of output: 328 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:08:11,492 WARN L233 SmtUtils]: Spent 7.44s on a formula simplification that was a NOOP. DAG size: 317 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:08:11,510 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-19 08:08:11,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420432606] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:08:11,510 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:08:11,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6, 6, 9, 10] total 29 [2022-11-19 08:08:11,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324578858] [2022-11-19 08:08:11,511 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:08:11,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-19 08:08:11,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:08:11,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-19 08:08:11,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=585, Unknown=1, NotChecked=52, Total=812 [2022-11-19 08:08:11,514 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 29 states, 29 states have (on average 1.7241379310344827) internal successors, (50), 29 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:08:17,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:08:17,266 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-11-19 08:08:17,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 08:08:17,267 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 1.7241379310344827) internal successors, (50), 29 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 08:08:17,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:08:17,268 INFO L225 Difference]: With dead ends: 20 [2022-11-19 08:08:17,268 INFO L226 Difference]: Without dead ends: 18 [2022-11-19 08:08:17,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 650.3s TimeCoverageRelationStatistics Valid=359, Invalid=976, Unknown=1, NotChecked=70, Total=1406 [2022-11-19 08:08:17,271 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 10 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:08:17,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 48 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 37 Unchecked, 0.1s Time] [2022-11-19 08:08:17,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-19 08:08:17,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-19 08:08:17,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:08:17,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-19 08:08:17,278 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2022-11-19 08:08:17,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:08:17,278 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-19 08:08:17,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.7241379310344827) internal successors, (50), 29 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:08:17,279 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-19 08:08:17,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 08:08:17,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:08:17,280 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-19 08:08:17,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-19 08:08:17,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-11-19 08:08:17,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-19 08:08:17,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:08:17,884 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:08:17,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:08:17,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 3 times [2022-11-19 08:08:17,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:08:17,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1182588884] [2022-11-19 08:08:17,886 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:08:17,886 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:08:17,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:08:17,888 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:08:17,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-19 08:08:18,074 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 08:08:18,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:08:18,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 79 conjunts are in the unsatisfiable core [2022-11-19 08:08:18,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:08:20,371 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 08:08:20,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:08:35,431 WARN L233 SmtUtils]: Spent 12.02s on a formula simplification. DAG size of input: 155 DAG size of output: 130 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:08:36,142 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 08:08:36,143 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:08:36,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1182588884] [2022-11-19 08:08:36,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1182588884] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:08:36,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1862228710] [2022-11-19 08:08:36,144 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:08:36,144 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:08:36,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:08:36,146 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:08:36,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-19 08:08:36,436 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 08:08:36,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:08:36,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 82 conjunts are in the unsatisfiable core [2022-11-19 08:08:36,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:08:37,587 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:08:37,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:08:39,242 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 08:08:39,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1862228710] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:08:39,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114923191] [2022-11-19 08:08:39,242 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:08:39,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:08:39,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:08:39,243 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:08:39,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-19 08:08:39,401 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 08:08:39,401 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:08:39,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 83 conjunts are in the unsatisfiable core [2022-11-19 08:08:39,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:08:40,772 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:08:40,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:08:55,324 WARN L233 SmtUtils]: Spent 12.48s on a formula simplification. DAG size of input: 151 DAG size of output: 132 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:08:56,349 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 08:08:56,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114923191] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:08:56,350 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:08:56,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8, 7, 8, 7] total 20 [2022-11-19 08:08:56,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521187256] [2022-11-19 08:08:56,350 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:08:56,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-19 08:08:56,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:08:56,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-19 08:08:56,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2022-11-19 08:08:56,352 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 20 states, 20 states have (on average 1.85) internal successors, (37), 20 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:08:56,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:08:56,738 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-11-19 08:08:56,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:08:56,738 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.85) internal successors, (37), 20 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-19 08:08:56,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:08:56,739 INFO L225 Difference]: With dead ends: 18 [2022-11-19 08:08:56,739 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:08:56,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 73 SyntacticMatches, 7 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 28.9s TimeCoverageRelationStatistics Valid=152, Invalid=354, Unknown=0, NotChecked=0, Total=506 [2022-11-19 08:08:56,740 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 16 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:08:56,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 14 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 10 Unchecked, 0.1s Time] [2022-11-19 08:08:56,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:08:56,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:08:56,742 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) [2022-11-19 08:08:56,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:08:56,742 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-11-19 08:08:56,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:08:56,743 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:08:56,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.85) internal successors, (37), 20 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:08:56,743 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:08:56,743 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:08:56,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:08:56,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-19 08:08:56,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-19 08:08:57,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-11-19 08:08:57,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:08:57,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 08:08:57,650 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 08:08:57,650 INFO L895 garLoopResultBuilder]: At program point L60-2(lines 60 201) the Hoare annotation is: (let ((.cse0 (= (bvadd (_ bv1 8) |ULTIMATE.start_main_~var_8~0#1|) (_ bv0 8))) (.cse1 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse2 (= (bvadd (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_4~0#1|) (_ bv0 8))) (.cse3 (= (_ bv63 8) |ULTIMATE.start_main_~var_23~0#1|)) (.cse4 (= (_ bv1 8) |ULTIMATE.start_main_~var_21~0#1|)) (.cse5 (= (_ bv1 8) |ULTIMATE.start_main_~var_12~0#1|)) (.cse6 (= (_ bv7 8) |ULTIMATE.start_main_~var_29~0#1|))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~var_5~0#1| (_ bv0 8)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse3 .cse4 .cse5 (not (= ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|) ((_ zero_extend 24) |ULTIMATE.start_main_~var_8~0#1|))) .cse6) (and .cse0 (= (_ bv3 8) |ULTIMATE.start_main_~mask_SORT_16~0#1|) .cse1 .cse2 (= (_ bv2 8) |ULTIMATE.start_main_~var_35~0#1|) (= |ULTIMATE.start_main_~var_17~0#1| (_ bv0 8)) (= |ULTIMATE.start_main_~var_46~0#1| (_ bv1 32)) .cse3 (= |ULTIMATE.start_main_~state_6~0#1| (_ bv0 8)) (= |ULTIMATE.start_main_~var_17~0#1| |ULTIMATE.start_main_~state_18~0#1|) (= |ULTIMATE.start_main_~state_6~0#1| |ULTIMATE.start_main_~var_5~0#1|) .cse4 .cse5 .cse6 (= (_ bv1 8) |ULTIMATE.start_main_~var_38~0#1|)))) [2022-11-19 08:08:57,650 INFO L899 garLoopResultBuilder]: For program point L60-3(lines 60 201) no Hoare annotation was computed. [2022-11-19 08:08:57,650 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-19 08:08:57,650 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 08:08:57,650 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-19 08:08:57,650 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-19 08:08:57,651 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-19 08:08:57,651 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-19 08:08:57,651 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-19 08:08:57,651 INFO L895 garLoopResultBuilder]: At program point L202(lines 22 203) the Hoare annotation is: false [2022-11-19 08:08:57,654 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1] [2022-11-19 08:08:57,657 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:08:57,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:08:57 BoogieIcfgContainer [2022-11-19 08:08:57,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:08:57,674 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:08:57,674 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:08:57,675 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:08:57,675 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:28" (3/4) ... [2022-11-19 08:08:57,677 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 08:08:57,687 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-19 08:08:57,687 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 08:08:57,688 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:08:57,732 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:08:57,735 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:08:57,736 INFO L158 Benchmark]: Toolchain (without parser) took 810042.24ms. Allocated memory was 67.1MB in the beginning and 522.2MB in the end (delta: 455.1MB). Free memory was 47.3MB in the beginning and 285.0MB in the end (delta: -237.6MB). Peak memory consumption was 218.1MB. Max. memory is 16.1GB. [2022-11-19 08:08:57,736 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 67.1MB. Free memory was 48.2MB in the beginning and 48.1MB in the end (delta: 47.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:08:57,736 INFO L158 Benchmark]: CACSL2BoogieTranslator took 434.76ms. Allocated memory is still 67.1MB. Free memory was 47.1MB in the beginning and 48.6MB in the end (delta: -1.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 08:08:57,737 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.11ms. Allocated memory is still 67.1MB. Free memory was 48.6MB in the beginning and 46.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:08:57,737 INFO L158 Benchmark]: Boogie Preprocessor took 36.34ms. Allocated memory is still 67.1MB. Free memory was 46.3MB in the beginning and 44.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:08:57,737 INFO L158 Benchmark]: RCFGBuilder took 601.13ms. Allocated memory is still 67.1MB. Free memory was 44.5MB in the beginning and 46.6MB in the end (delta: -2.1MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2022-11-19 08:08:57,738 INFO L158 Benchmark]: TraceAbstraction took 808858.26ms. Allocated memory was 67.1MB in the beginning and 522.2MB in the end (delta: 455.1MB). Free memory was 46.0MB in the beginning and 289.2MB in the end (delta: -243.2MB). Peak memory consumption was 212.9MB. Max. memory is 16.1GB. [2022-11-19 08:08:57,738 INFO L158 Benchmark]: Witness Printer took 60.78ms. Allocated memory is still 522.2MB. Free memory was 289.2MB in the beginning and 285.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 08:08:57,741 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 67.1MB. Free memory was 48.2MB in the beginning and 48.1MB in the end (delta: 47.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 434.76ms. Allocated memory is still 67.1MB. Free memory was 47.1MB in the beginning and 48.6MB in the end (delta: -1.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.11ms. Allocated memory is still 67.1MB. Free memory was 48.6MB in the beginning and 46.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.34ms. Allocated memory is still 67.1MB. Free memory was 46.3MB in the beginning and 44.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 601.13ms. Allocated memory is still 67.1MB. Free memory was 44.5MB in the beginning and 46.6MB in the end (delta: -2.1MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. * TraceAbstraction took 808858.26ms. Allocated memory was 67.1MB in the beginning and 522.2MB in the end (delta: 455.1MB). Free memory was 46.0MB in the beginning and 289.2MB in the end (delta: -243.2MB). Peak memory consumption was 212.9MB. Max. memory is 16.1GB. * Witness Printer took 60.78ms. Allocated memory is still 522.2MB. Free memory was 289.2MB in the beginning and 285.0MB 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: 20]: 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 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 808.8s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 97 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 60 IncrementalHoareTripleChecker+Unchecked, 82 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46 IncrementalHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 15 mSDtfsCounter, 46 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 220 GetRequests, 133 SyntacticMatches, 13 SemanticMatches, 74 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 681.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=3, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 90 HoareAnnotationTreeSize, 2 FomulaSimplifications, 44 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 310 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 798.0s InterpolantComputationTime, 113 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 202 ConstructedInterpolants, 80 QuantifiedInterpolants, 36809 SizeOfPredicates, 889 NumberOfNonLiveVariables, 2385 ConjunctsInSsa, 845 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 66/210 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 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: (((((((((~bvadd64(1bv8, var_8) == 0bv8 && 1bv8 == mask_SORT_1) && ~bvadd64(1bv8, mask_SORT_4) == 0bv8) && var_5 == 0bv8) && cond == 1bv32) && 63bv8 == var_23) && 1bv8 == var_21) && 1bv8 == var_12) && !(~zero_extendFrom8To32(state_6) == ~zero_extendFrom8To32(var_8))) && 7bv8 == var_29) || ((((((((((((((~bvadd64(1bv8, var_8) == 0bv8 && 3bv8 == mask_SORT_16) && 1bv8 == mask_SORT_1) && ~bvadd64(1bv8, mask_SORT_4) == 0bv8) && 2bv8 == var_35) && var_17 == 0bv8) && var_46 == 1bv32) && 63bv8 == var_23) && state_6 == 0bv8) && var_17 == state_18) && state_6 == var_5) && 1bv8 == var_21) && 1bv8 == var_12) && 7bv8 == var_29) && 1bv8 == var_38) RESULT: Ultimate proved your program to be correct! [2022-11-19 08:08:57,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618dcf4-955e-4dc2-89ea-c20410eee417/bin/utaipan-I9t0OCRTmS/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