./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --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 6556ff515d0922dbe3a06bc5063ec9f60439b7c3554b3a4149c1075ac229d4f7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:46:37,344 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:46:37,444 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 05:46:37,453 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:46:37,456 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:46:37,503 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:46:37,504 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:46:37,504 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:46:37,505 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:46:37,507 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:46:37,510 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:46:37,510 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:46:37,511 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:46:37,511 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:46:37,512 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:46:37,512 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:46:37,512 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:46:37,513 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:46:37,513 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:46:37,517 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:46:37,518 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:46:37,518 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:46:37,519 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:46:37,520 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:46:37,520 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:46:37,520 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:46:37,521 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:46:37,521 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:46:37,525 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:46:37,525 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:46:37,525 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:46:37,526 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:46:37,526 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:46:37,526 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:46:37,527 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:46:37,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:46:37,527 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:46:37,528 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:46:37,528 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:46:37,529 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:46:37,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:46:37,530 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:46:37,530 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:46:37,531 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:46:37,531 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6556ff515d0922dbe3a06bc5063ec9f60439b7c3554b3a4149c1075ac229d4f7 [2024-11-09 05:46:37,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:46:37,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:46:37,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:46:37,939 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:46:37,940 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:46:37,941 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c Unable to find full path for "g++" [2024-11-09 05:46:40,031 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:46:40,262 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:46:40,262 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c [2024-11-09 05:46:40,272 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/data/1595d1a61/37326e4511bb45c483af50328813002c/FLAGc53a0ad94 [2024-11-09 05:46:40,608 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/data/1595d1a61/37326e4511bb45c483af50328813002c [2024-11-09 05:46:40,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:46:40,613 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:46:40,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:46:40,615 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:46:40,622 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:46:40,623 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:46:40" (1/1) ... [2024-11-09 05:46:40,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54ccd672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:40, skipping insertion in model container [2024-11-09 05:46:40,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:46:40" (1/1) ... [2024-11-09 05:46:40,650 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:46:40,893 WARN L250 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_a60355a1-f134-441a-ba84-98953cb5da2c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c[1247,1260] [2024-11-09 05:46:40,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:46:40,942 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:46:40,955 WARN L250 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_a60355a1-f134-441a-ba84-98953cb5da2c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c[1247,1260] [2024-11-09 05:46:40,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:46:40,992 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:46:40,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:40 WrapperNode [2024-11-09 05:46:40,993 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:46:40,994 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:46:40,995 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:46:40,995 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:46:41,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:40" (1/1) ... [2024-11-09 05:46:41,011 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:40" (1/1) ... [2024-11-09 05:46:41,056 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 145 [2024-11-09 05:46:41,057 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:46:41,058 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:46:41,058 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:46:41,058 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:46:41,075 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:40" (1/1) ... [2024-11-09 05:46:41,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:40" (1/1) ... [2024-11-09 05:46:41,083 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:40" (1/1) ... [2024-11-09 05:46:41,084 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:40" (1/1) ... [2024-11-09 05:46:41,097 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:40" (1/1) ... [2024-11-09 05:46:41,105 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:40" (1/1) ... [2024-11-09 05:46:41,111 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:40" (1/1) ... [2024-11-09 05:46:41,117 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:40" (1/1) ... [2024-11-09 05:46:41,126 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:46:41,127 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:46:41,130 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:46:41,131 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:46:41,132 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:40" (1/1) ... [2024-11-09 05:46:41,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:46:41,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:46:41,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:46:41,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:46:41,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:46:41,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:46:41,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:46:41,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:46:41,307 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:46:41,309 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:46:41,749 INFO L? ?]: Removed 66 outVars from TransFormulas that were not future-live. [2024-11-09 05:46:41,749 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:46:42,094 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:46:42,094 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:46:42,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:46:42 BoogieIcfgContainer [2024-11-09 05:46:42,095 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:46:42,100 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:46:42,102 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:46:42,107 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:46:42,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:46:40" (1/3) ... [2024-11-09 05:46:42,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d50963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:46:42, skipping insertion in model container [2024-11-09 05:46:42,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:40" (2/3) ... [2024-11-09 05:46:42,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d50963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:46:42, skipping insertion in model container [2024-11-09 05:46:42,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:46:42" (3/3) ... [2024-11-09 05:46:42,113 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.synabs2.c [2024-11-09 05:46:42,138 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:46:42,138 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:46:42,228 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:46:42,235 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@7d53d933, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:46:42,236 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:46:42,241 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) [2024-11-09 05:46:42,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 05:46:42,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:46:42,248 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 05:46:42,249 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:46:42,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:46:42,255 INFO L85 PathProgramCache]: Analyzing trace with hash 6107315, now seen corresponding path program 1 times [2024-11-09 05:46:42,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:46:42,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917204944] [2024-11-09 05:46:42,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:46:42,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:46:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:46:42,448 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:46:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:46:42,529 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 05:46:42,531 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:46:42,533 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 05:46:42,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:46:42,540 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 05:46:42,558 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:46:42,569 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:46:42,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:46:42 BoogieIcfgContainer [2024-11-09 05:46:42,572 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:46:42,573 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:46:42,573 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:46:42,573 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:46:42,574 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:46:42" (3/4) ... [2024-11-09 05:46:42,578 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 05:46:42,579 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:46:42,582 INFO L158 Benchmark]: Toolchain (without parser) took 1967.12ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 106.6MB in the beginning and 113.3MB in the end (delta: -6.7MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-11-09 05:46:42,582 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:46:42,584 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.91ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 104.1MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 05:46:42,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.50ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 99.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 05:46:42,585 INFO L158 Benchmark]: Boogie Preprocessor took 68.38ms. Allocated memory is still 142.6MB. Free memory was 99.9MB in the beginning and 98.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:46:42,586 INFO L158 Benchmark]: RCFGBuilder took 968.52ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 97.8MB in the beginning and 133.2MB in the end (delta: -35.4MB). Peak memory consumption was 45.9MB. Max. memory is 16.1GB. [2024-11-09 05:46:42,587 INFO L158 Benchmark]: TraceAbstraction took 471.74ms. Allocated memory is still 172.0MB. Free memory was 132.2MB in the beginning and 113.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 05:46:42,587 INFO L158 Benchmark]: Witness Printer took 6.43ms. Allocated memory is still 172.0MB. Free memory is still 113.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:46:42,592 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.91ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 104.1MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.50ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 99.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.38ms. Allocated memory is still 142.6MB. Free memory was 99.9MB in the beginning and 98.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 968.52ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 97.8MB in the beginning and 133.2MB in the end (delta: -35.4MB). Peak memory consumption was 45.9MB. Max. memory is 16.1GB. * TraceAbstraction took 471.74ms. Allocated memory is still 172.0MB. Free memory was 132.2MB in the beginning and 113.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 6.43ms. Allocated memory is still 172.0MB. Free memory is still 113.3MB. 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: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 63. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 5); [L30] const SORT_4 msb_SORT_4 = (SORT_4)1 << (5 - 1); [L32] const SORT_19 mask_SORT_19 = (SORT_19)-1 >> (sizeof(SORT_19) * 8 - 32); [L33] const SORT_19 msb_SORT_19 = (SORT_19)1 << (32 - 1); [L35] const SORT_4 var_5 = 0; [L36] const SORT_4 var_8 = 6; [L37] const SORT_1 var_14 = 1; [L38] const SORT_19 var_21 = 2; [L40] SORT_1 input_2; [L41] SORT_1 input_3; [L43] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 [L43] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L44] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 [L44] SORT_4 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L46] SORT_4 init_7_arg_1 = var_5; [L47] state_6 = init_7_arg_1 [L48] SORT_4 init_10_arg_1 = var_8; [L49] state_9 = init_10_arg_1 VAL [mask_SORT_1=1, mask_SORT_4=31, state_6=0, state_9=6, var_14=1, var_21=2] [L52] input_2 = __VERIFIER_nondet_uchar() [L53] input_3 = __VERIFIER_nondet_uchar() [L56] SORT_4 var_11_arg_0 = state_6; [L57] SORT_4 var_11_arg_1 = state_9; [L58] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L59] SORT_1 var_15_arg_0 = var_11; [L60] SORT_1 var_15 = ~var_15_arg_0; [L61] SORT_1 var_16_arg_0 = var_14; [L62] SORT_1 var_16_arg_1 = var_15; [L63] EXPR var_16_arg_0 & var_16_arg_1 [L63] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L64] EXPR var_16 & mask_SORT_1 [L64] var_16 = var_16 & mask_SORT_1 [L65] SORT_1 bad_17_arg_0 = var_16; [L66] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 05:46:42,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --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 6556ff515d0922dbe3a06bc5063ec9f60439b7c3554b3a4149c1075ac229d4f7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:46:45,179 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:46:45,282 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2024-11-09 05:46:45,291 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:46:45,291 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:46:45,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:46:45,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:46:45,336 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:46:45,339 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:46:45,341 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:46:45,341 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:46:45,341 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:46:45,342 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:46:45,342 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:46:45,342 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:46:45,343 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:46:45,343 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:46:45,344 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:46:45,344 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:46:45,347 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:46:45,350 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:46:45,351 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:46:45,351 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:46:45,352 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:46:45,352 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:46:45,352 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:46:45,352 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:46:45,353 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:46:45,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:46:45,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:46:45,355 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:46:45,355 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:46:45,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:46:45,355 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:46:45,356 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:46:45,356 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:46:45,356 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:46:45,356 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:46:45,357 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:46:45,357 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:46:45,357 INFO L153 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_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6556ff515d0922dbe3a06bc5063ec9f60439b7c3554b3a4149c1075ac229d4f7 [2024-11-09 05:46:45,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:46:45,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:46:45,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:46:45,825 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:46:45,825 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:46:45,827 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c Unable to find full path for "g++" [2024-11-09 05:46:48,133 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:46:48,384 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:46:48,384 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c [2024-11-09 05:46:48,392 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/data/54e9fef13/05495e18f2f54b489e5d76630d750d29/FLAGd3817a59a [2024-11-09 05:46:48,409 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/data/54e9fef13/05495e18f2f54b489e5d76630d750d29 [2024-11-09 05:46:48,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:46:48,414 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:46:48,416 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:46:48,416 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:46:48,425 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:46:48,426 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:46:48" (1/1) ... [2024-11-09 05:46:48,430 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@182db947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:48, skipping insertion in model container [2024-11-09 05:46:48,430 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:46:48" (1/1) ... [2024-11-09 05:46:48,460 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:46:48,647 WARN L250 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_a60355a1-f134-441a-ba84-98953cb5da2c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c[1247,1260] [2024-11-09 05:46:48,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:46:48,704 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:46:48,719 WARN L250 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_a60355a1-f134-441a-ba84-98953cb5da2c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c[1247,1260] [2024-11-09 05:46:48,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:46:48,762 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:46:48,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:48 WrapperNode [2024-11-09 05:46:48,763 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:46:48,764 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:46:48,765 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:46:48,765 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:46:48,773 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:48" (1/1) ... [2024-11-09 05:46:48,783 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:48" (1/1) ... [2024-11-09 05:46:48,805 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2024-11-09 05:46:48,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:46:48,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:46:48,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:46:48,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:46:48,816 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:48" (1/1) ... [2024-11-09 05:46:48,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:48" (1/1) ... [2024-11-09 05:46:48,819 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:48" (1/1) ... [2024-11-09 05:46:48,820 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:48" (1/1) ... [2024-11-09 05:46:48,828 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:48" (1/1) ... [2024-11-09 05:46:48,836 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:48" (1/1) ... [2024-11-09 05:46:48,837 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:48" (1/1) ... [2024-11-09 05:46:48,843 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:48" (1/1) ... [2024-11-09 05:46:48,845 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:46:48,846 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:46:48,850 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:46:48,851 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:46:48,852 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:48" (1/1) ... [2024-11-09 05:46:48,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:46:48,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:46:48,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:46:48,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:46:48,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:46:48,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 05:46:48,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:46:48,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:46:49,129 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:46:49,132 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:46:49,396 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-09 05:46:49,396 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:46:49,410 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:46:49,410 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:46:49,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:46:49 BoogieIcfgContainer [2024-11-09 05:46:49,411 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:46:49,414 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:46:49,414 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:46:49,418 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:46:49,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:46:48" (1/3) ... [2024-11-09 05:46:49,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e1523a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:46:49, skipping insertion in model container [2024-11-09 05:46:49,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:46:48" (2/3) ... [2024-11-09 05:46:49,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e1523a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:46:49, skipping insertion in model container [2024-11-09 05:46:49,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:46:49" (3/3) ... [2024-11-09 05:46:49,425 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.synabs2.c [2024-11-09 05:46:49,447 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:46:49,448 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:46:49,538 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:46:49,549 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@1df18005, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:46:49,550 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:46:49,555 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) [2024-11-09 05:46:49,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 05:46:49,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:46:49,565 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 05:46:49,566 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:46:49,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:46:49,576 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2024-11-09 05:46:49,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:46:49,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489382816] [2024-11-09 05:46:49,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:46:49,593 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 [2024-11-09 05:46:49,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:46:49,597 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:46:49,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:46:49,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:46:49,722 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 05:46:49,738 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:46:50,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:46:50,128 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:46:50,129 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:46:50,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489382816] [2024-11-09 05:46:50,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489382816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:46:50,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:46:50,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:46:50,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802458352] [2024-11-09 05:46:50,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:46:50,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:46:50,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:46:50,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:46:50,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:46:50,173 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) [2024-11-09 05:46:50,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:46:50,233 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2024-11-09 05:46:50,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:46:50,236 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 [2024-11-09 05:46:50,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:46:50,246 INFO L225 Difference]: With dead ends: 19 [2024-11-09 05:46:50,246 INFO L226 Difference]: Without dead ends: 10 [2024-11-09 05:46:50,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:46:50,254 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:46:50,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:46:50,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-09 05:46:50,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-09 05:46:50,294 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) [2024-11-09 05:46:50,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-09 05:46:50,297 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-09 05:46:50,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:46:50,298 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-09 05:46:50,298 INFO L472 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) [2024-11-09 05:46:50,299 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-09 05:46:50,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 05:46:50,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:46:50,300 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-09 05:46:50,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:46:50,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:46:50,501 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:46:50,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:46:50,502 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2024-11-09 05:46:50,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:46:50,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672963693] [2024-11-09 05:46:50,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:46:50,503 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 [2024-11-09 05:46:50,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:46:50,510 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:46:50,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:46:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:46:50,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 05:46:50,652 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:46:50,932 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:46:50,932 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:46:51,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:46:51,309 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:46:51,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672963693] [2024-11-09 05:46:51,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [672963693] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:46:51,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1592559212] [2024-11-09 05:46:51,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:46:51,310 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:46:51,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:46:51,319 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:46:51,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-09 05:46:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:46:51,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 05:46:51,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:46:51,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:46:51,636 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:46:51,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:46:51,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1592559212] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:46:51,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345696731] [2024-11-09 05:46:51,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:46:51,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:46:51,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:46:51,844 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:46:51,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:46:51,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:46:51,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 05:46:51,935 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:46:52,157 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:46:52,158 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:46:52,442 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:46:52,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345696731] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:46:52,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 05:46:52,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 10 [2024-11-09 05:46:52,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154626249] [2024-11-09 05:46:52,444 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 05:46:52,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:46:52,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:46:52,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:46:52,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:46:52,447 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 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) [2024-11-09 05:46:52,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:46:52,705 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2024-11-09 05:46:52,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 05:46:52,706 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 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) Word has length 8 [2024-11-09 05:46:52,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:46:52,708 INFO L225 Difference]: With dead ends: 18 [2024-11-09 05:46:52,708 INFO L226 Difference]: Without dead ends: 16 [2024-11-09 05:46:52,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-11-09 05:46:52,710 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:46:52,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 22 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:46:52,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-09 05:46:52,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2024-11-09 05:46:52,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:46:52,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-11-09 05:46:52,719 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2024-11-09 05:46:52,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:46:52,719 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-11-09 05:46:52,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 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) [2024-11-09 05:46:52,720 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-11-09 05:46:52,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 05:46:52,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:46:52,721 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2024-11-09 05:46:52,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 05:46:52,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-09 05:46:53,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:46:53,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:46:53,326 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:46:53,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:46:53,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 2 times [2024-11-09 05:46:53,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:46:53,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1998712042] [2024-11-09 05:46:53,328 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:46:53,328 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 [2024-11-09 05:46:53,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:46:53,332 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:46:53,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:46:53,442 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:46:53,442 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:46:53,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-09 05:46:53,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:46:53,786 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:46:53,787 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:46:54,505 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:46:54,506 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:46:54,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1998712042] [2024-11-09 05:46:54,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1998712042] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:46:54,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [986935013] [2024-11-09 05:46:54,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:46:54,507 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:46:54,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:46:54,510 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:46:54,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-09 05:46:54,686 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:46:54,687 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:46:54,689 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-09 05:46:54,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:46:54,931 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:46:54,932 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:46:55,302 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:46:55,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [986935013] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:46:55,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514079859] [2024-11-09 05:46:55,303 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:46:55,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:46:55,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:46:55,306 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:46:55,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 05:46:55,414 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:46:55,414 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:46:55,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-09 05:46:55,422 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:46:55,712 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:46:55,712 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:46:56,194 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:46:56,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514079859] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:46:56,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 05:46:56,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 8, 8] total 14 [2024-11-09 05:46:56,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997132938] [2024-11-09 05:46:56,195 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 05:46:56,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 05:46:56,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:46:56,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 05:46:56,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-09 05:46:56,199 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 14 states have internal predecessors, (30), 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) [2024-11-09 05:46:57,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:46:57,334 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2024-11-09 05:46:57,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 05:46:57,335 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 14 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-09 05:46:57,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:46:57,336 INFO L225 Difference]: With dead ends: 30 [2024-11-09 05:46:57,336 INFO L226 Difference]: Without dead ends: 28 [2024-11-09 05:46:57,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 64 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2024-11-09 05:46:57,339 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 10 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:46:57,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 25 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:46:57,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-09 05:46:57,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2024-11-09 05:46:57,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 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) [2024-11-09 05:46:57,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2024-11-09 05:46:57,349 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 14 [2024-11-09 05:46:57,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:46:57,349 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2024-11-09 05:46:57,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 14 states have internal predecessors, (30), 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) [2024-11-09 05:46:57,350 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2024-11-09 05:46:57,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 05:46:57,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:46:57,351 INFO L215 NwaCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1] [2024-11-09 05:46:57,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-09 05:46:57,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:46:57,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 05:46:57,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/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_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:46:57,952 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:46:57,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:46:57,953 INFO L85 PathProgramCache]: Analyzing trace with hash -752690141, now seen corresponding path program 3 times [2024-11-09 05:46:57,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:46:57,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169697680] [2024-11-09 05:46:57,954 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:46:57,954 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 [2024-11-09 05:46:57,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:46:57,958 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:46:57,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:46:58,097 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-09 05:46:58,097 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:46:58,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-09 05:46:58,106 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:46:58,733 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:46:58,733 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:47:00,764 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:47:00,764 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:47:00,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169697680] [2024-11-09 05:47:00,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169697680] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:47:00,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1975022583] [2024-11-09 05:47:00,765 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:47:00,765 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:47:00,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:47:00,769 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:47:00,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-09 05:47:01,060 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-09 05:47:01,061 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:47:01,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-09 05:47:01,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:47:01,491 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:47:01,492 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:47:02,339 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:47:02,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1975022583] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:47:02,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328716418] [2024-11-09 05:47:02,340 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:47:02,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:02,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:47:02,342 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:47:02,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 05:47:02,512 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-09 05:47:02,512 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:47:02,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-09 05:47:02,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:47:02,967 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:47:02,967 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:47:03,928 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:47:03,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328716418] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:47:03,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 05:47:03,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11, 11, 12, 12] total 22 [2024-11-09 05:47:03,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291488693] [2024-11-09 05:47:03,929 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 05:47:03,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 05:47:03,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:47:03,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 05:47:03,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2024-11-09 05:47:03,932 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 22 states have internal predecessors, (54), 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) [2024-11-09 05:47:06,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:47:06,640 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2024-11-09 05:47:06,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 05:47:06,641 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 22 states have internal predecessors, (54), 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 26 [2024-11-09 05:47:06,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:47:06,642 INFO L225 Difference]: With dead ends: 48 [2024-11-09 05:47:06,642 INFO L226 Difference]: Without dead ends: 46 [2024-11-09 05:47:06,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 128 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=424, Invalid=1136, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 05:47:06,644 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:47:06,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 37 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:47:06,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-09 05:47:06,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2024-11-09 05:47:06,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.0227272727272727) internal successors, (45), 44 states have internal predecessors, (45), 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) [2024-11-09 05:47:06,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2024-11-09 05:47:06,657 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 26 [2024-11-09 05:47:06,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:47:06,657 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2024-11-09 05:47:06,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 22 states have internal predecessors, (54), 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) [2024-11-09 05:47:06,658 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2024-11-09 05:47:06,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 05:47:06,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:47:06,660 INFO L215 NwaCegarLoop]: trace histogram [14, 13, 13, 1, 1, 1, 1] [2024-11-09 05:47:06,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/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)] Ended with exit code 0 [2024-11-09 05:47:06,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2024-11-09 05:47:07,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-09 05:47:07,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:07,261 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:47:07,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:47:07,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1244940003, now seen corresponding path program 4 times [2024-11-09 05:47:07,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:47:07,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [465315439] [2024-11-09 05:47:07,263 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:47:07,263 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 [2024-11-09 05:47:07,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:47:07,266 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:47:07,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/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 (12)] Waiting until timeout for monitored process [2024-11-09 05:47:07,534 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:47:07,534 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-09 05:47:07,534 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:47:07,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:47:07,798 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 05:47:07,798 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:47:07,799 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 05:47:07,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/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 (12)] Forceful destruction successful, exit code 0 [2024-11-09 05:47:08,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:47:08,004 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1] [2024-11-09 05:47:08,049 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,049 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,049 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,049 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,049 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,049 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,049 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,050 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,050 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,050 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,050 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,050 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,050 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,050 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,075 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:47:08,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:47:08 BoogieIcfgContainer [2024-11-09 05:47:08,078 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:47:08,079 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:47:08,079 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:47:08,080 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:47:08,080 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:46:49" (3/4) ... [2024-11-09 05:47:08,081 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 05:47:08,092 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,092 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,092 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,092 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,093 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,093 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,093 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,093 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,093 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,097 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,097 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,097 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,097 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,098 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 05:47:08,195 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 05:47:08,195 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:47:08,196 INFO L158 Benchmark]: Toolchain (without parser) took 19781.87ms. Allocated memory was 75.5MB in the beginning and 211.8MB in the end (delta: 136.3MB). Free memory was 50.9MB in the beginning and 118.3MB in the end (delta: -67.4MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB. [2024-11-09 05:47:08,196 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 75.5MB. Free memory was 51.3MB in the beginning and 51.2MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:47:08,197 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.84ms. Allocated memory is still 75.5MB. Free memory was 50.7MB in the beginning and 36.7MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 05:47:08,197 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.13ms. Allocated memory is still 75.5MB. Free memory was 36.7MB in the beginning and 34.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:47:08,197 INFO L158 Benchmark]: Boogie Preprocessor took 39.44ms. Allocated memory is still 75.5MB. Free memory was 34.9MB in the beginning and 33.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:47:08,198 INFO L158 Benchmark]: RCFGBuilder took 565.16ms. Allocated memory is still 75.5MB. Free memory was 33.4MB in the beginning and 43.7MB in the end (delta: -10.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 05:47:08,198 INFO L158 Benchmark]: TraceAbstraction took 18665.06ms. Allocated memory was 75.5MB in the beginning and 211.8MB in the end (delta: 136.3MB). Free memory was 43.2MB in the beginning and 128.8MB in the end (delta: -85.6MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. [2024-11-09 05:47:08,199 INFO L158 Benchmark]: Witness Printer took 116.23ms. Allocated memory is still 211.8MB. Free memory was 128.8MB in the beginning and 118.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 05:47:08,201 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 75.5MB. Free memory was 51.3MB in the beginning and 51.2MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.84ms. Allocated memory is still 75.5MB. Free memory was 50.7MB in the beginning and 36.7MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.13ms. Allocated memory is still 75.5MB. Free memory was 36.7MB in the beginning and 34.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.44ms. Allocated memory is still 75.5MB. Free memory was 34.9MB in the beginning and 33.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 565.16ms. Allocated memory is still 75.5MB. Free memory was 33.4MB in the beginning and 43.7MB in the end (delta: -10.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 18665.06ms. Allocated memory was 75.5MB in the beginning and 211.8MB in the end (delta: 136.3MB). Free memory was 43.2MB in the beginning and 128.8MB in the end (delta: -85.6MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. * Witness Printer took 116.23ms. Allocated memory is still 211.8MB. Free memory was 128.8MB in the beginning and 118.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. 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 - CounterExampleResult [Line: 21]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 5); [L30] const SORT_4 msb_SORT_4 = (SORT_4)1 << (5 - 1); [L32] const SORT_19 mask_SORT_19 = (SORT_19)-1 >> (sizeof(SORT_19) * 8 - 32); [L33] const SORT_19 msb_SORT_19 = (SORT_19)1 << (32 - 1); [L35] const SORT_4 var_5 = 0; [L36] const SORT_4 var_8 = 6; [L37] const SORT_1 var_14 = 1; [L38] const SORT_19 var_21 = 2; [L40] SORT_1 input_2; [L41] SORT_1 input_3; [L43] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L44] SORT_4 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L46] SORT_4 init_7_arg_1 = var_5; [L47] state_6 = init_7_arg_1 [L48] SORT_4 init_10_arg_1 = var_8; [L49] state_9 = init_10_arg_1 VAL [mask_SORT_1=1, mask_SORT_4=31, state_6=0, state_9=6, var_14=1, var_21=2] [L52] input_2 = __VERIFIER_nondet_uchar() [L53] input_3 = __VERIFIER_nondet_uchar() [L56] SORT_4 var_11_arg_0 = state_6; [L57] SORT_4 var_11_arg_1 = state_9; [L58] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L59] SORT_1 var_15_arg_0 = var_11; [L60] SORT_1 var_15 = ~var_15_arg_0; [L61] SORT_1 var_16_arg_0 = var_14; [L62] SORT_1 var_16_arg_1 = var_15; [L63] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L64] var_16 = var_16 & mask_SORT_1 [L65] SORT_1 bad_17_arg_0 = var_16; [L66] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND FALSE !(!(cond)) [L66] RET __VERIFIER_assert(!(bad_17_arg_0)) [L68] SORT_4 var_20_arg_0 = state_6; [L69] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L70] SORT_19 var_20 = var_20_arg_0; [L71] SORT_19 var_22_arg_0 = var_20; [L72] SORT_19 var_22_arg_1 = var_21; [L73] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L74] SORT_19 var_23_arg_0 = var_22; [L75] SORT_4 var_23 = var_23_arg_0 >> 0; [L76] var_23 = var_23 & mask_SORT_4 [L77] SORT_4 next_24_arg_1 = var_23; [L78] SORT_4 var_25_arg_0 = state_9; [L79] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L80] SORT_19 var_25 = var_25_arg_0; [L81] SORT_19 var_26_arg_0 = var_25; [L82] SORT_19 var_26_arg_1 = var_21; [L83] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L84] SORT_19 var_27_arg_0 = var_26; [L85] SORT_4 var_27 = var_27_arg_0 >> 0; [L86] var_27 = var_27 & mask_SORT_4 [L87] SORT_4 next_28_arg_1 = var_27; [L89] state_6 = next_24_arg_1 [L90] state_9 = next_28_arg_1 [L52] input_2 = __VERIFIER_nondet_uchar() [L53] input_3 = __VERIFIER_nondet_uchar() [L56] SORT_4 var_11_arg_0 = state_6; [L57] SORT_4 var_11_arg_1 = state_9; [L58] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L59] SORT_1 var_15_arg_0 = var_11; [L60] SORT_1 var_15 = ~var_15_arg_0; [L61] SORT_1 var_16_arg_0 = var_14; [L62] SORT_1 var_16_arg_1 = var_15; [L63] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L64] var_16 = var_16 & mask_SORT_1 [L65] SORT_1 bad_17_arg_0 = var_16; [L66] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND FALSE !(!(cond)) [L66] RET __VERIFIER_assert(!(bad_17_arg_0)) [L68] SORT_4 var_20_arg_0 = state_6; [L69] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L70] SORT_19 var_20 = var_20_arg_0; [L71] SORT_19 var_22_arg_0 = var_20; [L72] SORT_19 var_22_arg_1 = var_21; [L73] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L74] SORT_19 var_23_arg_0 = var_22; [L75] SORT_4 var_23 = var_23_arg_0 >> 0; [L76] var_23 = var_23 & mask_SORT_4 [L77] SORT_4 next_24_arg_1 = var_23; [L78] SORT_4 var_25_arg_0 = state_9; [L79] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L80] SORT_19 var_25 = var_25_arg_0; [L81] SORT_19 var_26_arg_0 = var_25; [L82] SORT_19 var_26_arg_1 = var_21; [L83] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L84] SORT_19 var_27_arg_0 = var_26; [L85] SORT_4 var_27 = var_27_arg_0 >> 0; [L86] var_27 = var_27 & mask_SORT_4 [L87] SORT_4 next_28_arg_1 = var_27; [L89] state_6 = next_24_arg_1 [L90] state_9 = next_28_arg_1 [L52] input_2 = __VERIFIER_nondet_uchar() [L53] input_3 = __VERIFIER_nondet_uchar() [L56] SORT_4 var_11_arg_0 = state_6; [L57] SORT_4 var_11_arg_1 = state_9; [L58] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L59] SORT_1 var_15_arg_0 = var_11; [L60] SORT_1 var_15 = ~var_15_arg_0; [L61] SORT_1 var_16_arg_0 = var_14; [L62] SORT_1 var_16_arg_1 = var_15; [L63] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L64] var_16 = var_16 & mask_SORT_1 [L65] SORT_1 bad_17_arg_0 = var_16; [L66] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND FALSE !(!(cond)) [L66] RET __VERIFIER_assert(!(bad_17_arg_0)) [L68] SORT_4 var_20_arg_0 = state_6; [L69] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L70] SORT_19 var_20 = var_20_arg_0; [L71] SORT_19 var_22_arg_0 = var_20; [L72] SORT_19 var_22_arg_1 = var_21; [L73] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L74] SORT_19 var_23_arg_0 = var_22; [L75] SORT_4 var_23 = var_23_arg_0 >> 0; [L76] var_23 = var_23 & mask_SORT_4 [L77] SORT_4 next_24_arg_1 = var_23; [L78] SORT_4 var_25_arg_0 = state_9; [L79] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L80] SORT_19 var_25 = var_25_arg_0; [L81] SORT_19 var_26_arg_0 = var_25; [L82] SORT_19 var_26_arg_1 = var_21; [L83] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L84] SORT_19 var_27_arg_0 = var_26; [L85] SORT_4 var_27 = var_27_arg_0 >> 0; [L86] var_27 = var_27 & mask_SORT_4 [L87] SORT_4 next_28_arg_1 = var_27; [L89] state_6 = next_24_arg_1 [L90] state_9 = next_28_arg_1 [L52] input_2 = __VERIFIER_nondet_uchar() [L53] input_3 = __VERIFIER_nondet_uchar() [L56] SORT_4 var_11_arg_0 = state_6; [L57] SORT_4 var_11_arg_1 = state_9; [L58] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L59] SORT_1 var_15_arg_0 = var_11; [L60] SORT_1 var_15 = ~var_15_arg_0; [L61] SORT_1 var_16_arg_0 = var_14; [L62] SORT_1 var_16_arg_1 = var_15; [L63] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L64] var_16 = var_16 & mask_SORT_1 [L65] SORT_1 bad_17_arg_0 = var_16; [L66] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND FALSE !(!(cond)) [L66] RET __VERIFIER_assert(!(bad_17_arg_0)) [L68] SORT_4 var_20_arg_0 = state_6; [L69] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L70] SORT_19 var_20 = var_20_arg_0; [L71] SORT_19 var_22_arg_0 = var_20; [L72] SORT_19 var_22_arg_1 = var_21; [L73] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L74] SORT_19 var_23_arg_0 = var_22; [L75] SORT_4 var_23 = var_23_arg_0 >> 0; [L76] var_23 = var_23 & mask_SORT_4 [L77] SORT_4 next_24_arg_1 = var_23; [L78] SORT_4 var_25_arg_0 = state_9; [L79] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L80] SORT_19 var_25 = var_25_arg_0; [L81] SORT_19 var_26_arg_0 = var_25; [L82] SORT_19 var_26_arg_1 = var_21; [L83] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L84] SORT_19 var_27_arg_0 = var_26; [L85] SORT_4 var_27 = var_27_arg_0 >> 0; [L86] var_27 = var_27 & mask_SORT_4 [L87] SORT_4 next_28_arg_1 = var_27; [L89] state_6 = next_24_arg_1 [L90] state_9 = next_28_arg_1 [L52] input_2 = __VERIFIER_nondet_uchar() [L53] input_3 = __VERIFIER_nondet_uchar() [L56] SORT_4 var_11_arg_0 = state_6; [L57] SORT_4 var_11_arg_1 = state_9; [L58] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L59] SORT_1 var_15_arg_0 = var_11; [L60] SORT_1 var_15 = ~var_15_arg_0; [L61] SORT_1 var_16_arg_0 = var_14; [L62] SORT_1 var_16_arg_1 = var_15; [L63] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L64] var_16 = var_16 & mask_SORT_1 [L65] SORT_1 bad_17_arg_0 = var_16; [L66] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND FALSE !(!(cond)) [L66] RET __VERIFIER_assert(!(bad_17_arg_0)) [L68] SORT_4 var_20_arg_0 = state_6; [L69] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L70] SORT_19 var_20 = var_20_arg_0; [L71] SORT_19 var_22_arg_0 = var_20; [L72] SORT_19 var_22_arg_1 = var_21; [L73] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L74] SORT_19 var_23_arg_0 = var_22; [L75] SORT_4 var_23 = var_23_arg_0 >> 0; [L76] var_23 = var_23 & mask_SORT_4 [L77] SORT_4 next_24_arg_1 = var_23; [L78] SORT_4 var_25_arg_0 = state_9; [L79] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L80] SORT_19 var_25 = var_25_arg_0; [L81] SORT_19 var_26_arg_0 = var_25; [L82] SORT_19 var_26_arg_1 = var_21; [L83] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L84] SORT_19 var_27_arg_0 = var_26; [L85] SORT_4 var_27 = var_27_arg_0 >> 0; [L86] var_27 = var_27 & mask_SORT_4 [L87] SORT_4 next_28_arg_1 = var_27; [L89] state_6 = next_24_arg_1 [L90] state_9 = next_28_arg_1 [L52] input_2 = __VERIFIER_nondet_uchar() [L53] input_3 = __VERIFIER_nondet_uchar() [L56] SORT_4 var_11_arg_0 = state_6; [L57] SORT_4 var_11_arg_1 = state_9; [L58] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L59] SORT_1 var_15_arg_0 = var_11; [L60] SORT_1 var_15 = ~var_15_arg_0; [L61] SORT_1 var_16_arg_0 = var_14; [L62] SORT_1 var_16_arg_1 = var_15; [L63] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L64] var_16 = var_16 & mask_SORT_1 [L65] SORT_1 bad_17_arg_0 = var_16; [L66] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND FALSE !(!(cond)) [L66] RET __VERIFIER_assert(!(bad_17_arg_0)) [L68] SORT_4 var_20_arg_0 = state_6; [L69] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L70] SORT_19 var_20 = var_20_arg_0; [L71] SORT_19 var_22_arg_0 = var_20; [L72] SORT_19 var_22_arg_1 = var_21; [L73] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L74] SORT_19 var_23_arg_0 = var_22; [L75] SORT_4 var_23 = var_23_arg_0 >> 0; [L76] var_23 = var_23 & mask_SORT_4 [L77] SORT_4 next_24_arg_1 = var_23; [L78] SORT_4 var_25_arg_0 = state_9; [L79] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L80] SORT_19 var_25 = var_25_arg_0; [L81] SORT_19 var_26_arg_0 = var_25; [L82] SORT_19 var_26_arg_1 = var_21; [L83] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L84] SORT_19 var_27_arg_0 = var_26; [L85] SORT_4 var_27 = var_27_arg_0 >> 0; [L86] var_27 = var_27 & mask_SORT_4 [L87] SORT_4 next_28_arg_1 = var_27; [L89] state_6 = next_24_arg_1 [L90] state_9 = next_28_arg_1 [L52] input_2 = __VERIFIER_nondet_uchar() [L53] input_3 = __VERIFIER_nondet_uchar() [L56] SORT_4 var_11_arg_0 = state_6; [L57] SORT_4 var_11_arg_1 = state_9; [L58] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L59] SORT_1 var_15_arg_0 = var_11; [L60] SORT_1 var_15 = ~var_15_arg_0; [L61] SORT_1 var_16_arg_0 = var_14; [L62] SORT_1 var_16_arg_1 = var_15; [L63] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L64] var_16 = var_16 & mask_SORT_1 [L65] SORT_1 bad_17_arg_0 = var_16; [L66] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND FALSE !(!(cond)) [L66] RET __VERIFIER_assert(!(bad_17_arg_0)) [L68] SORT_4 var_20_arg_0 = state_6; [L69] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L70] SORT_19 var_20 = var_20_arg_0; [L71] SORT_19 var_22_arg_0 = var_20; [L72] SORT_19 var_22_arg_1 = var_21; [L73] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L74] SORT_19 var_23_arg_0 = var_22; [L75] SORT_4 var_23 = var_23_arg_0 >> 0; [L76] var_23 = var_23 & mask_SORT_4 [L77] SORT_4 next_24_arg_1 = var_23; [L78] SORT_4 var_25_arg_0 = state_9; [L79] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L80] SORT_19 var_25 = var_25_arg_0; [L81] SORT_19 var_26_arg_0 = var_25; [L82] SORT_19 var_26_arg_1 = var_21; [L83] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L84] SORT_19 var_27_arg_0 = var_26; [L85] SORT_4 var_27 = var_27_arg_0 >> 0; [L86] var_27 = var_27 & mask_SORT_4 [L87] SORT_4 next_28_arg_1 = var_27; [L89] state_6 = next_24_arg_1 [L90] state_9 = next_28_arg_1 [L52] input_2 = __VERIFIER_nondet_uchar() [L53] input_3 = __VERIFIER_nondet_uchar() [L56] SORT_4 var_11_arg_0 = state_6; [L57] SORT_4 var_11_arg_1 = state_9; [L58] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L59] SORT_1 var_15_arg_0 = var_11; [L60] SORT_1 var_15 = ~var_15_arg_0; [L61] SORT_1 var_16_arg_0 = var_14; [L62] SORT_1 var_16_arg_1 = var_15; [L63] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L64] var_16 = var_16 & mask_SORT_1 [L65] SORT_1 bad_17_arg_0 = var_16; [L66] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND FALSE !(!(cond)) [L66] RET __VERIFIER_assert(!(bad_17_arg_0)) [L68] SORT_4 var_20_arg_0 = state_6; [L69] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L70] SORT_19 var_20 = var_20_arg_0; [L71] SORT_19 var_22_arg_0 = var_20; [L72] SORT_19 var_22_arg_1 = var_21; [L73] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L74] SORT_19 var_23_arg_0 = var_22; [L75] SORT_4 var_23 = var_23_arg_0 >> 0; [L76] var_23 = var_23 & mask_SORT_4 [L77] SORT_4 next_24_arg_1 = var_23; [L78] SORT_4 var_25_arg_0 = state_9; [L79] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L80] SORT_19 var_25 = var_25_arg_0; [L81] SORT_19 var_26_arg_0 = var_25; [L82] SORT_19 var_26_arg_1 = var_21; [L83] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L84] SORT_19 var_27_arg_0 = var_26; [L85] SORT_4 var_27 = var_27_arg_0 >> 0; [L86] var_27 = var_27 & mask_SORT_4 [L87] SORT_4 next_28_arg_1 = var_27; [L89] state_6 = next_24_arg_1 [L90] state_9 = next_28_arg_1 [L52] input_2 = __VERIFIER_nondet_uchar() [L53] input_3 = __VERIFIER_nondet_uchar() [L56] SORT_4 var_11_arg_0 = state_6; [L57] SORT_4 var_11_arg_1 = state_9; [L58] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L59] SORT_1 var_15_arg_0 = var_11; [L60] SORT_1 var_15 = ~var_15_arg_0; [L61] SORT_1 var_16_arg_0 = var_14; [L62] SORT_1 var_16_arg_1 = var_15; [L63] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L64] var_16 = var_16 & mask_SORT_1 [L65] SORT_1 bad_17_arg_0 = var_16; [L66] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND FALSE !(!(cond)) [L66] RET __VERIFIER_assert(!(bad_17_arg_0)) [L68] SORT_4 var_20_arg_0 = state_6; [L69] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L70] SORT_19 var_20 = var_20_arg_0; [L71] SORT_19 var_22_arg_0 = var_20; [L72] SORT_19 var_22_arg_1 = var_21; [L73] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L74] SORT_19 var_23_arg_0 = var_22; [L75] SORT_4 var_23 = var_23_arg_0 >> 0; [L76] var_23 = var_23 & mask_SORT_4 [L77] SORT_4 next_24_arg_1 = var_23; [L78] SORT_4 var_25_arg_0 = state_9; [L79] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L80] SORT_19 var_25 = var_25_arg_0; [L81] SORT_19 var_26_arg_0 = var_25; [L82] SORT_19 var_26_arg_1 = var_21; [L83] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L84] SORT_19 var_27_arg_0 = var_26; [L85] SORT_4 var_27 = var_27_arg_0 >> 0; [L86] var_27 = var_27 & mask_SORT_4 [L87] SORT_4 next_28_arg_1 = var_27; [L89] state_6 = next_24_arg_1 [L90] state_9 = next_28_arg_1 [L52] input_2 = __VERIFIER_nondet_uchar() [L53] input_3 = __VERIFIER_nondet_uchar() [L56] SORT_4 var_11_arg_0 = state_6; [L57] SORT_4 var_11_arg_1 = state_9; [L58] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L59] SORT_1 var_15_arg_0 = var_11; [L60] SORT_1 var_15 = ~var_15_arg_0; [L61] SORT_1 var_16_arg_0 = var_14; [L62] SORT_1 var_16_arg_1 = var_15; [L63] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L64] var_16 = var_16 & mask_SORT_1 [L65] SORT_1 bad_17_arg_0 = var_16; [L66] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND FALSE !(!(cond)) [L66] RET __VERIFIER_assert(!(bad_17_arg_0)) [L68] SORT_4 var_20_arg_0 = state_6; [L69] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L70] SORT_19 var_20 = var_20_arg_0; [L71] SORT_19 var_22_arg_0 = var_20; [L72] SORT_19 var_22_arg_1 = var_21; [L73] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L74] SORT_19 var_23_arg_0 = var_22; [L75] SORT_4 var_23 = var_23_arg_0 >> 0; [L76] var_23 = var_23 & mask_SORT_4 [L77] SORT_4 next_24_arg_1 = var_23; [L78] SORT_4 var_25_arg_0 = state_9; [L79] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L80] SORT_19 var_25 = var_25_arg_0; [L81] SORT_19 var_26_arg_0 = var_25; [L82] SORT_19 var_26_arg_1 = var_21; [L83] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L84] SORT_19 var_27_arg_0 = var_26; [L85] SORT_4 var_27 = var_27_arg_0 >> 0; [L86] var_27 = var_27 & mask_SORT_4 [L87] SORT_4 next_28_arg_1 = var_27; [L89] state_6 = next_24_arg_1 [L90] state_9 = next_28_arg_1 [L52] input_2 = __VERIFIER_nondet_uchar() [L53] input_3 = __VERIFIER_nondet_uchar() [L56] SORT_4 var_11_arg_0 = state_6; [L57] SORT_4 var_11_arg_1 = state_9; [L58] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L59] SORT_1 var_15_arg_0 = var_11; [L60] SORT_1 var_15 = ~var_15_arg_0; [L61] SORT_1 var_16_arg_0 = var_14; [L62] SORT_1 var_16_arg_1 = var_15; [L63] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L64] var_16 = var_16 & mask_SORT_1 [L65] SORT_1 bad_17_arg_0 = var_16; [L66] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND FALSE !(!(cond)) [L66] RET __VERIFIER_assert(!(bad_17_arg_0)) [L68] SORT_4 var_20_arg_0 = state_6; [L69] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L70] SORT_19 var_20 = var_20_arg_0; [L71] SORT_19 var_22_arg_0 = var_20; [L72] SORT_19 var_22_arg_1 = var_21; [L73] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L74] SORT_19 var_23_arg_0 = var_22; [L75] SORT_4 var_23 = var_23_arg_0 >> 0; [L76] var_23 = var_23 & mask_SORT_4 [L77] SORT_4 next_24_arg_1 = var_23; [L78] SORT_4 var_25_arg_0 = state_9; [L79] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L80] SORT_19 var_25 = var_25_arg_0; [L81] SORT_19 var_26_arg_0 = var_25; [L82] SORT_19 var_26_arg_1 = var_21; [L83] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L84] SORT_19 var_27_arg_0 = var_26; [L85] SORT_4 var_27 = var_27_arg_0 >> 0; [L86] var_27 = var_27 & mask_SORT_4 [L87] SORT_4 next_28_arg_1 = var_27; [L89] state_6 = next_24_arg_1 [L90] state_9 = next_28_arg_1 [L52] input_2 = __VERIFIER_nondet_uchar() [L53] input_3 = __VERIFIER_nondet_uchar() [L56] SORT_4 var_11_arg_0 = state_6; [L57] SORT_4 var_11_arg_1 = state_9; [L58] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L59] SORT_1 var_15_arg_0 = var_11; [L60] SORT_1 var_15 = ~var_15_arg_0; [L61] SORT_1 var_16_arg_0 = var_14; [L62] SORT_1 var_16_arg_1 = var_15; [L63] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L64] var_16 = var_16 & mask_SORT_1 [L65] SORT_1 bad_17_arg_0 = var_16; [L66] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND FALSE !(!(cond)) [L66] RET __VERIFIER_assert(!(bad_17_arg_0)) [L68] SORT_4 var_20_arg_0 = state_6; [L69] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L70] SORT_19 var_20 = var_20_arg_0; [L71] SORT_19 var_22_arg_0 = var_20; [L72] SORT_19 var_22_arg_1 = var_21; [L73] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L74] SORT_19 var_23_arg_0 = var_22; [L75] SORT_4 var_23 = var_23_arg_0 >> 0; [L76] var_23 = var_23 & mask_SORT_4 [L77] SORT_4 next_24_arg_1 = var_23; [L78] SORT_4 var_25_arg_0 = state_9; [L79] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L80] SORT_19 var_25 = var_25_arg_0; [L81] SORT_19 var_26_arg_0 = var_25; [L82] SORT_19 var_26_arg_1 = var_21; [L83] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L84] SORT_19 var_27_arg_0 = var_26; [L85] SORT_4 var_27 = var_27_arg_0 >> 0; [L86] var_27 = var_27 & mask_SORT_4 [L87] SORT_4 next_28_arg_1 = var_27; [L89] state_6 = next_24_arg_1 [L90] state_9 = next_28_arg_1 [L52] input_2 = __VERIFIER_nondet_uchar() [L53] input_3 = __VERIFIER_nondet_uchar() [L56] SORT_4 var_11_arg_0 = state_6; [L57] SORT_4 var_11_arg_1 = state_9; [L58] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L59] SORT_1 var_15_arg_0 = var_11; [L60] SORT_1 var_15 = ~var_15_arg_0; [L61] SORT_1 var_16_arg_0 = var_14; [L62] SORT_1 var_16_arg_1 = var_15; [L63] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L64] var_16 = var_16 & mask_SORT_1 [L65] SORT_1 bad_17_arg_0 = var_16; [L66] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND FALSE !(!(cond)) [L66] RET __VERIFIER_assert(!(bad_17_arg_0)) [L68] SORT_4 var_20_arg_0 = state_6; [L69] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L70] SORT_19 var_20 = var_20_arg_0; [L71] SORT_19 var_22_arg_0 = var_20; [L72] SORT_19 var_22_arg_1 = var_21; [L73] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L74] SORT_19 var_23_arg_0 = var_22; [L75] SORT_4 var_23 = var_23_arg_0 >> 0; [L76] var_23 = var_23 & mask_SORT_4 [L77] SORT_4 next_24_arg_1 = var_23; [L78] SORT_4 var_25_arg_0 = state_9; [L79] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L80] SORT_19 var_25 = var_25_arg_0; [L81] SORT_19 var_26_arg_0 = var_25; [L82] SORT_19 var_26_arg_1 = var_21; [L83] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L84] SORT_19 var_27_arg_0 = var_26; [L85] SORT_4 var_27 = var_27_arg_0 >> 0; [L86] var_27 = var_27 & mask_SORT_4 [L87] SORT_4 next_28_arg_1 = var_27; [L89] state_6 = next_24_arg_1 [L90] state_9 = next_28_arg_1 [L52] input_2 = __VERIFIER_nondet_uchar() [L53] input_3 = __VERIFIER_nondet_uchar() [L56] SORT_4 var_11_arg_0 = state_6; [L57] SORT_4 var_11_arg_1 = state_9; [L58] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L59] SORT_1 var_15_arg_0 = var_11; [L60] SORT_1 var_15 = ~var_15_arg_0; [L61] SORT_1 var_16_arg_0 = var_14; [L62] SORT_1 var_16_arg_1 = var_15; [L63] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L64] var_16 = var_16 & mask_SORT_1 [L65] SORT_1 bad_17_arg_0 = var_16; [L66] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.5s, OverallIterations: 5, TraceHistogramMax: 14, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 95 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 79 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 349 IncrementalHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 16 mSDtfsCounter, 349 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 307 GetRequests, 226 SyntacticMatches, 6 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=4, InterpolantAutomatonStates: 56, 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, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 9.8s InterpolantComputationTime, 193 NumberOfCodeBlocks, 193 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 274 ConstructedInterpolants, 108 QuantifiedInterpolants, 23781 SizeOfPredicates, 48 NumberOfNonLiveVariables, 852 ConjunctsInSsa, 273 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 0/564 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 proved your program to be incorrect! [2024-11-09 05:47:08,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60355a1-f134-441a-ba84-98953cb5da2c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE