./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 9bd2c7ff 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_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/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_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ --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 0.2.3-dev-9bd2c7f [2023-11-19 05:02:34,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:02:34,605 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:02:34,630 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:02:34,631 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:02:34,677 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:02:34,678 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:02:34,679 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:02:34,680 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:02:34,686 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:02:34,687 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:02:34,688 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:02:34,689 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:02:34,691 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:02:34,691 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:02:34,692 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:02:34,692 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:02:34,693 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:02:34,694 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:02:34,694 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:02:34,695 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:02:34,696 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:02:34,696 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:02:34,697 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:02:34,697 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:02:34,698 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:02:34,698 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:02:34,699 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:02:34,699 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:02:34,700 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:02:34,701 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:02:34,702 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:02:34,702 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:02:34,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:02:34,702 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:02:34,703 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:02:34,703 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:02:34,703 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:02:34,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:02:34,704 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:02:34,704 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:02:34,705 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:02:34,705 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_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6556ff515d0922dbe3a06bc5063ec9f60439b7c3554b3a4149c1075ac229d4f7 [2023-11-19 05:02:35,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:02:35,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:02:35,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:02:35,040 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:02:35,041 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:02:35,042 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c [2023-11-19 05:02:38,437 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:02:38,708 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:02:38,708 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c [2023-11-19 05:02:38,719 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/data/e02414b1d/9d58eab80bdd46798b473ced85a5d455/FLAG3782e3b33 [2023-11-19 05:02:38,733 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/data/e02414b1d/9d58eab80bdd46798b473ced85a5d455 [2023-11-19 05:02:38,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:02:38,737 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:02:38,739 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:02:38,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:02:38,756 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:02:38,757 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:02:38" (1/1) ... [2023-11-19 05:02:38,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5824a330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:38, skipping insertion in model container [2023-11-19 05:02:38,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:02:38" (1/1) ... [2023-11-19 05:02:38,792 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:02:38,969 WARN L240 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_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c[1247,1260] [2023-11-19 05:02:39,012 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:02:39,025 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:02:39,041 WARN L240 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_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c[1247,1260] [2023-11-19 05:02:39,067 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:02:39,084 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:02:39,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:39 WrapperNode [2023-11-19 05:02:39,084 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:02:39,086 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:02:39,086 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:02:39,086 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:02:39,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:39" (1/1) ... [2023-11-19 05:02:39,106 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:39" (1/1) ... [2023-11-19 05:02:39,167 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 162 [2023-11-19 05:02:39,167 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:02:39,168 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:02:39,168 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:02:39,169 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:02:39,180 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:39" (1/1) ... [2023-11-19 05:02:39,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:39" (1/1) ... [2023-11-19 05:02:39,188 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:39" (1/1) ... [2023-11-19 05:02:39,188 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:39" (1/1) ... [2023-11-19 05:02:39,202 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:39" (1/1) ... [2023-11-19 05:02:39,207 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:39" (1/1) ... [2023-11-19 05:02:39,211 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:39" (1/1) ... [2023-11-19 05:02:39,215 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:39" (1/1) ... [2023-11-19 05:02:39,221 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:02:39,222 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:02:39,222 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:02:39,222 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:02:39,223 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:39" (1/1) ... [2023-11-19 05:02:39,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:02:39,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:02:39,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:02:39,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:02:39,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:02:39,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:02:39,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:02:39,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:02:39,513 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:02:39,516 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:02:40,013 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:02:40,409 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:02:40,409 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:02:40,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:02:40 BoogieIcfgContainer [2023-11-19 05:02:40,420 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:02:40,425 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:02:40,426 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:02:40,430 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:02:40,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:02:38" (1/3) ... [2023-11-19 05:02:40,431 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e604d6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:02:40, skipping insertion in model container [2023-11-19 05:02:40,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:39" (2/3) ... [2023-11-19 05:02:40,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e604d6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:02:40, skipping insertion in model container [2023-11-19 05:02:40,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:02:40" (3/3) ... [2023-11-19 05:02:40,436 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.synabs2.c [2023-11-19 05:02:40,458 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:02:40,459 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:02:40,520 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:02:40,529 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@529d86e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:02:40,529 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:02:40,534 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) [2023-11-19 05:02:40,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 05:02:40,542 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:02:40,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 05:02:40,544 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:02:40,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:02:40,551 INFO L85 PathProgramCache]: Analyzing trace with hash 5645907, now seen corresponding path program 1 times [2023-11-19 05:02:40,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:02:40,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067394701] [2023-11-19 05:02:40,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:02:40,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:02:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:02:40,933 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:02:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:02:41,049 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:02:41,051 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:02:41,054 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:02:41,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:02:41,064 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:02:41,075 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:02:41,104 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:02:41,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:02:41 BoogieIcfgContainer [2023-11-19 05:02:41,118 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:02:41,121 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:02:41,121 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:02:41,121 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:02:41,122 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:02:40" (3/4) ... [2023-11-19 05:02:41,128 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:02:41,129 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:02:41,130 INFO L158 Benchmark]: Toolchain (without parser) took 2392.65ms. Allocated memory was 121.6MB in the beginning and 165.7MB in the end (delta: 44.0MB). Free memory was 83.6MB in the beginning and 89.7MB in the end (delta: -6.1MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. [2023-11-19 05:02:41,131 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:02:41,132 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.85ms. Allocated memory is still 121.6MB. Free memory was 83.4MB in the beginning and 71.5MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 05:02:41,133 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.62ms. Allocated memory is still 121.6MB. Free memory was 71.5MB in the beginning and 67.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:02:41,133 INFO L158 Benchmark]: Boogie Preprocessor took 52.88ms. Allocated memory is still 121.6MB. Free memory was 67.8MB in the beginning and 65.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:02:41,135 INFO L158 Benchmark]: RCFGBuilder took 1198.12ms. Allocated memory was 121.6MB in the beginning and 165.7MB in the end (delta: 44.0MB). Free memory was 65.7MB in the beginning and 112.7MB in the end (delta: -47.0MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. [2023-11-19 05:02:41,135 INFO L158 Benchmark]: TraceAbstraction took 693.31ms. Allocated memory is still 165.7MB. Free memory was 111.7MB in the beginning and 90.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 05:02:41,136 INFO L158 Benchmark]: Witness Printer took 8.49ms. Allocated memory is still 165.7MB. Free memory was 90.7MB in the beginning and 89.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:02:41,141 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.85ms. Allocated memory is still 121.6MB. Free memory was 83.4MB in the beginning and 71.5MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.62ms. Allocated memory is still 121.6MB. Free memory was 71.5MB in the beginning and 67.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.88ms. Allocated memory is still 121.6MB. Free memory was 67.8MB in the beginning and 65.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1198.12ms. Allocated memory was 121.6MB in the beginning and 165.7MB in the end (delta: 44.0MB). Free memory was 65.7MB in the beginning and 112.7MB in the end (delta: -47.0MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. * TraceAbstraction took 693.31ms. Allocated memory is still 165.7MB. Free memory was 111.7MB in the beginning and 90.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 8.49ms. Allocated memory is still 165.7MB. Free memory was 90.7MB in the beginning and 89.7MB in the end (delta: 1.0MB). 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 [init_10_arg_1=6, init_7_arg_1=0, mask_SORT_19=4294967295, mask_SORT_1=1, mask_SORT_4=31, msb_SORT_19=2147483648, msb_SORT_1=1, msb_SORT_4=16, state_6=0, state_9=6, var_14=1, var_21=2, var_5=0, var_8=6] [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) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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, 0.3s 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 [2023-11-19 05:02:41,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/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_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ --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 0.2.3-dev-9bd2c7f [2023-11-19 05:02:44,091 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:02:44,262 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-11-19 05:02:44,271 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:02:44,272 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:02:44,321 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:02:44,322 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:02:44,323 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:02:44,324 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:02:44,330 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:02:44,331 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:02:44,332 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:02:44,332 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:02:44,334 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:02:44,335 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:02:44,336 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:02:44,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:02:44,338 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:02:44,338 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:02:44,339 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:02:44,339 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:02:44,340 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:02:44,340 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:02:44,341 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:02:44,342 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:02:44,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:02:44,343 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:02:44,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:02:44,344 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:02:44,344 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:02:44,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:02:44,346 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:02:44,347 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:02:44,347 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:02:44,348 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:02:44,348 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:02:44,348 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:02:44,348 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:02:44,349 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:02:44,350 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6556ff515d0922dbe3a06bc5063ec9f60439b7c3554b3a4149c1075ac229d4f7 [2023-11-19 05:02:44,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:02:44,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:02:44,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:02:44,937 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:02:44,937 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:02:44,939 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c [2023-11-19 05:02:48,595 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:02:48,952 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:02:48,953 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c [2023-11-19 05:02:48,963 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/data/d5a6ab1d0/b12b6064962b4d43a5d5ca0def5ca493/FLAGc63e8d64c [2023-11-19 05:02:48,982 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/data/d5a6ab1d0/b12b6064962b4d43a5d5ca0def5ca493 [2023-11-19 05:02:48,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:02:48,990 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:02:48,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:02:48,995 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:02:49,002 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:02:49,003 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:02:48" (1/1) ... [2023-11-19 05:02:49,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26324e10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:49, skipping insertion in model container [2023-11-19 05:02:49,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:02:48" (1/1) ... [2023-11-19 05:02:49,037 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:02:49,276 WARN L240 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_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c[1247,1260] [2023-11-19 05:02:49,347 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:02:49,367 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:02:49,395 WARN L240 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_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c[1247,1260] [2023-11-19 05:02:49,437 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:02:49,461 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:02:49,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:49 WrapperNode [2023-11-19 05:02:49,462 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:02:49,464 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:02:49,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:02:49,465 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:02:49,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:49" (1/1) ... [2023-11-19 05:02:49,492 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:49" (1/1) ... [2023-11-19 05:02:49,535 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2023-11-19 05:02:49,535 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:02:49,537 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:02:49,539 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:02:49,539 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:02:49,550 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:49" (1/1) ... [2023-11-19 05:02:49,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:49" (1/1) ... [2023-11-19 05:02:49,569 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:49" (1/1) ... [2023-11-19 05:02:49,571 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:49" (1/1) ... [2023-11-19 05:02:49,577 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:49" (1/1) ... [2023-11-19 05:02:49,593 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:49" (1/1) ... [2023-11-19 05:02:49,594 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:49" (1/1) ... [2023-11-19 05:02:49,596 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:49" (1/1) ... [2023-11-19 05:02:49,603 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:02:49,604 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:02:49,608 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:02:49,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:02:49,610 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:49" (1/1) ... [2023-11-19 05:02:49,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:02:49,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:02:49,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:02:49,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:02:49,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:02:49,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:02:49,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:02:49,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:02:49,822 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:02:49,825 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:02:50,059 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:02:50,068 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:02:50,069 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:02:50,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:02:50 BoogieIcfgContainer [2023-11-19 05:02:50,073 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:02:50,077 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:02:50,077 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:02:50,081 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:02:50,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:02:48" (1/3) ... [2023-11-19 05:02:50,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0458e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:02:50, skipping insertion in model container [2023-11-19 05:02:50,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:49" (2/3) ... [2023-11-19 05:02:50,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0458e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:02:50, skipping insertion in model container [2023-11-19 05:02:50,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:02:50" (3/3) ... [2023-11-19 05:02:50,086 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.synabs2.c [2023-11-19 05:02:50,109 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:02:50,110 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:02:50,186 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:02:50,197 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@686f6469, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:02:50,198 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:02:50,204 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) [2023-11-19 05:02:50,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 05:02:50,213 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:02:50,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 05:02:50,215 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:02:50,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:02:50,226 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2023-11-19 05:02:50,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:02:50,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1948196510] [2023-11-19 05:02:50,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:02:50,249 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 [2023-11-19 05:02:50,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:02:50,253 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:02:50,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:02:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:02:50,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 05:02:50,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:02:50,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:02:50,797 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:02:50,799 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:02:50,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1948196510] [2023-11-19 05:02:50,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1948196510] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:02:50,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:02:50,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:02:50,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176349193] [2023-11-19 05:02:50,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:02:50,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:02:50,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:02:50,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:02:50,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:02:50,864 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) [2023-11-19 05:02:50,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:02:50,953 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2023-11-19 05:02:50,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:02:50,956 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 [2023-11-19 05:02:50,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:02:50,966 INFO L225 Difference]: With dead ends: 19 [2023-11-19 05:02:50,966 INFO L226 Difference]: Without dead ends: 10 [2023-11-19 05:02:50,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:02:50,975 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 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 [2023-11-19 05:02:50,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:02:50,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-19 05:02:51,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2023-11-19 05:02:51,018 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) [2023-11-19 05:02:51,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-11-19 05:02:51,022 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2023-11-19 05:02:51,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:02:51,023 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-11-19 05:02:51,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:02:51,023 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-11-19 05:02:51,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 05:02:51,024 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:02:51,024 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-19 05:02:51,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:02:51,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:02:51,227 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:02:51,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:02:51,228 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2023-11-19 05:02:51,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:02:51,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [263066461] [2023-11-19 05:02:51,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:02:51,230 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 [2023-11-19 05:02:51,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:02:51,233 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:02:51,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:02:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:02:51,353 WARN L260 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-19 05:02:51,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:02:51,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:02:51,736 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:02:52,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:02:52,169 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:02:52,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [263066461] [2023-11-19 05:02:52,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [263066461] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:02:52,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1645004472] [2023-11-19 05:02:52,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:02:52,170 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:02:52,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:02:52,174 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:02:52,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 05:02:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:02:52,323 WARN L260 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-19 05:02:52,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:02:52,622 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:02:52,622 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:02:52,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:02:52,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1645004472] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:02:52,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138903593] [2023-11-19 05:02:52,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:02:52,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:02:52,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:02:52,874 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:02:52,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 05:02:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:02:52,980 WARN L260 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-19 05:02:52,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:02:53,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:02:53,265 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:02:53,499 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:02:53,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138903593] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:02:53,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-19 05:02:53,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 10 [2023-11-19 05:02:53,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693954958] [2023-11-19 05:02:53,501 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-19 05:02:53,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 05:02:53,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:02:53,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 05:02:53,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-19 05:02:53,504 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) [2023-11-19 05:02:53,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:02:53,737 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2023-11-19 05:02:53,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 05:02:53,739 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 [2023-11-19 05:02:53,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:02:53,739 INFO L225 Difference]: With dead ends: 18 [2023-11-19 05:02:53,739 INFO L226 Difference]: Without dead ends: 16 [2023-11-19 05:02:53,740 INFO L412 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 [2023-11-19 05:02:53,742 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:02:53,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 14 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:02:53,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-19 05:02:53,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2023-11-19 05:02:53,749 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) [2023-11-19 05:02:53,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-11-19 05:02:53,750 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2023-11-19 05:02:53,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:02:53,750 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-11-19 05:02:53,751 INFO L496 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) [2023-11-19 05:02:53,751 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-11-19 05:02:53,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 05:02:53,752 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:02:53,752 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2023-11-19 05:02:53,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/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)] Ended with exit code 0 [2023-11-19 05:02:53,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-19 05:02:54,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-19 05:02:54,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:02:54,355 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:02:54,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:02:54,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 2 times [2023-11-19 05:02:54,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:02:54,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1849745708] [2023-11-19 05:02:54,357 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 05:02:54,357 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 [2023-11-19 05:02:54,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:02:54,358 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:02:54,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:02:54,447 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 05:02:54,447 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 05:02:54,452 WARN L260 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 74 conjunts are in the unsatisfiable core [2023-11-19 05:02:54,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:02:54,948 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:02:54,948 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:02:55,661 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:02:55,661 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:02:55,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1849745708] [2023-11-19 05:02:55,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1849745708] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:02:55,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1285935066] [2023-11-19 05:02:55,663 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 05:02:55,663 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:02:55,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:02:55,664 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:02:55,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-19 05:02:55,848 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 05:02:55,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 05:02:55,855 WARN L260 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 74 conjunts are in the unsatisfiable core [2023-11-19 05:02:55,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:02:56,233 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:02:56,234 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:02:56,624 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:02:56,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1285935066] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:02:56,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808397908] [2023-11-19 05:02:56,625 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 05:02:56,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:02:56,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:02:56,627 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:02:56,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 05:02:56,717 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 05:02:56,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 05:02:56,721 WARN L260 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 77 conjunts are in the unsatisfiable core [2023-11-19 05:02:56,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:02:57,220 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:02:57,220 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:02:57,822 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:02:57,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808397908] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:02:57,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-19 05:02:57,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 8, 8] total 14 [2023-11-19 05:02:57,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121370625] [2023-11-19 05:02:57,824 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-19 05:02:57,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 05:02:57,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:02:57,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 05:02:57,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2023-11-19 05:02:57,829 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) [2023-11-19 05:02:58,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:02:58,910 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2023-11-19 05:02:58,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-19 05:02:58,912 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 [2023-11-19 05:02:58,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:02:58,913 INFO L225 Difference]: With dead ends: 30 [2023-11-19 05:02:58,913 INFO L226 Difference]: Without dead ends: 28 [2023-11-19 05:02:58,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 64 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2023-11-19 05:02:58,915 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:02:58,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 29 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 05:02:58,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-19 05:02:58,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2023-11-19 05:02:58,929 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) [2023-11-19 05:02:58,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2023-11-19 05:02:58,932 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 14 [2023-11-19 05:02:58,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:02:58,932 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2023-11-19 05:02:58,933 INFO L496 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) [2023-11-19 05:02:58,933 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2023-11-19 05:02:58,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 05:02:58,934 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:02:58,934 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1] [2023-11-19 05:02:58,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-19 05:02:59,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 05:02:59,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/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)] Forceful destruction successful, exit code 0 [2023-11-19 05:02:59,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:02:59,538 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:02:59,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:02:59,538 INFO L85 PathProgramCache]: Analyzing trace with hash -752690141, now seen corresponding path program 3 times [2023-11-19 05:02:59,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:02:59,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035064346] [2023-11-19 05:02:59,539 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 05:02:59,539 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 [2023-11-19 05:02:59,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:02:59,540 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:02:59,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:02:59,714 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-11-19 05:02:59,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 05:02:59,728 WARN L260 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 146 conjunts are in the unsatisfiable core [2023-11-19 05:02:59,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:00,517 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:00,518 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:03:02,731 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:02,731 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:03:02,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035064346] [2023-11-19 05:03:02,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2035064346] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:03:02,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [756614253] [2023-11-19 05:03:02,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 05:03:02,734 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:03:02,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:03:02,735 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:03:02,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-19 05:03:02,979 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-11-19 05:03:02,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 05:03:02,984 WARN L260 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 146 conjunts are in the unsatisfiable core [2023-11-19 05:03:02,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:03,564 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:03,564 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:03:04,369 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:04,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [756614253] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:03:04,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568995096] [2023-11-19 05:03:04,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 05:03:04,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:03:04,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:03:04,371 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:03:04,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 05:03:04,506 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-11-19 05:03:04,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 05:03:04,512 WARN L260 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 149 conjunts are in the unsatisfiable core [2023-11-19 05:03:04,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:05,126 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:05,126 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:03:06,209 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:06,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568995096] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:03:06,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-19 05:03:06,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11, 11, 12, 12] total 22 [2023-11-19 05:03:06,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572175912] [2023-11-19 05:03:06,211 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-19 05:03:06,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-19 05:03:06,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:03:06,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-19 05:03:06,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2023-11-19 05:03:06,214 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) [2023-11-19 05:03:09,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:09,520 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2023-11-19 05:03:09,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-19 05:03:09,521 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 [2023-11-19 05:03:09,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:09,523 INFO L225 Difference]: With dead ends: 48 [2023-11-19 05:03:09,523 INFO L226 Difference]: Without dead ends: 46 [2023-11-19 05:03:09,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 128 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=424, Invalid=1136, Unknown=0, NotChecked=0, Total=1560 [2023-11-19 05:03:09,525 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 29 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:09,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 38 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 05:03:09,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-19 05:03:09,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2023-11-19 05:03:09,543 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) [2023-11-19 05:03:09,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2023-11-19 05:03:09,546 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 26 [2023-11-19 05:03:09,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:09,547 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2023-11-19 05:03:09,549 INFO L496 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) [2023-11-19 05:03:09,550 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2023-11-19 05:03:09,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-19 05:03:09,553 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:09,553 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 1, 1, 1, 1] [2023-11-19 05:03:09,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 05:03:09,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-11-19 05:03:09,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-19 05:03:10,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:03:10,155 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:03:10,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:10,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1244940003, now seen corresponding path program 4 times [2023-11-19 05:03:10,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:03:10,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127951721] [2023-11-19 05:03:10,156 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-19 05:03:10,157 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 [2023-11-19 05:03:10,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:03:10,158 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:03:10,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:03:10,462 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-19 05:03:10,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-11-19 05:03:10,462 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:03:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:03:10,822 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-19 05:03:10,822 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:03:10,823 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:03:10,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:03:11,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:03:11,036 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1] [2023-11-19 05:03:11,039 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:03:11,134 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,135 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,135 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,135 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,135 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,135 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,136 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,136 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,136 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,136 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,136 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,137 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,137 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,137 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:03:11 BoogieIcfgContainer [2023-11-19 05:03:11,169 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:03:11,170 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:03:11,170 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:03:11,170 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:03:11,171 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:02:50" (3/4) ... [2023-11-19 05:03:11,172 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 05:03:11,203 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,203 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,203 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,203 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,204 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,204 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,204 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,204 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,204 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,204 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,204 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,205 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,205 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,205 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:03:11,342 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 05:03:11,342 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:03:11,343 INFO L158 Benchmark]: Toolchain (without parser) took 22355.44ms. Allocated memory was 115.3MB in the beginning and 297.8MB in the end (delta: 182.5MB). Free memory was 91.6MB in the beginning and 179.0MB in the end (delta: -87.4MB). Peak memory consumption was 97.2MB. Max. memory is 16.1GB. [2023-11-19 05:03:11,343 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 77.6MB. Free memory is still 53.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:03:11,344 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.11ms. Allocated memory is still 115.3MB. Free memory was 91.2MB in the beginning and 79.3MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 05:03:11,344 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.64ms. Allocated memory is still 115.3MB. Free memory was 79.3MB in the beginning and 77.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:03:11,344 INFO L158 Benchmark]: Boogie Preprocessor took 66.36ms. Allocated memory is still 115.3MB. Free memory was 77.4MB in the beginning and 76.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:03:11,345 INFO L158 Benchmark]: RCFGBuilder took 468.65ms. Allocated memory is still 115.3MB. Free memory was 76.0MB in the beginning and 64.1MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 05:03:11,345 INFO L158 Benchmark]: TraceAbstraction took 21092.51ms. Allocated memory was 115.3MB in the beginning and 297.8MB in the end (delta: 182.5MB). Free memory was 63.5MB in the beginning and 191.5MB in the end (delta: -128.1MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2023-11-19 05:03:11,346 INFO L158 Benchmark]: Witness Printer took 172.46ms. Allocated memory is still 297.8MB. Free memory was 191.5MB in the beginning and 179.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 05:03:11,348 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 77.6MB. Free memory is still 53.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 468.11ms. Allocated memory is still 115.3MB. Free memory was 91.2MB in the beginning and 79.3MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.64ms. Allocated memory is still 115.3MB. Free memory was 79.3MB in the beginning and 77.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.36ms. Allocated memory is still 115.3MB. Free memory was 77.4MB in the beginning and 76.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 468.65ms. Allocated memory is still 115.3MB. Free memory was 76.0MB in the beginning and 64.1MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 21092.51ms. Allocated memory was 115.3MB in the beginning and 297.8MB in the end (delta: 182.5MB). Free memory was 63.5MB in the beginning and 191.5MB in the end (delta: -128.1MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. * Witness Printer took 172.46ms. Allocated memory is still 297.8MB. Free memory was 191.5MB in the beginning and 179.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. 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 [init_10_arg_1=6, init_7_arg_1=0, mask_SORT_19=4294967295, mask_SORT_1=1, mask_SORT_4=31, msb_SORT_19=2147483648, msb_SORT_1=1, msb_SORT_4=16, state_6=0, state_9=6, var_14=1, var_21=2, var_5=0, var_8=6] [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)) VAL [\old(cond)=1, cond=1] [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 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, mask_SORT_19=4294967295, mask_SORT_1=1, mask_SORT_4=31, msb_SORT_19=2147483648, msb_SORT_1=1, msb_SORT_4=16, next_24_arg_1=2, next_28_arg_1=8, state_6=2, state_9=8, var_11=1, var_11_arg_0=0, var_11_arg_1=6, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=0, var_20_arg_0=0, var_21=2, var_22=2, var_22_arg_0=0, var_22_arg_1=2, var_23=2, var_23_arg_0=2, var_25=6, var_25_arg_0=6, var_26=8, var_26_arg_0=6, var_26_arg_1=2, var_27=8, var_27_arg_0=8, var_5=0, var_8=6] [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)) VAL [\old(cond)=1, cond=1] [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 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, mask_SORT_19=4294967295, mask_SORT_1=1, mask_SORT_4=31, msb_SORT_19=2147483648, msb_SORT_1=1, msb_SORT_4=16, next_24_arg_1=4, next_28_arg_1=10, state_6=4, state_9=10, var_11=1, var_11_arg_0=2, var_11_arg_1=8, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=2, var_20_arg_0=2, var_21=2, var_22=4, var_22_arg_0=2, var_22_arg_1=2, var_23=4, var_23_arg_0=4, var_25=8, var_25_arg_0=8, var_26=10, var_26_arg_0=8, var_26_arg_1=2, var_27=10, var_27_arg_0=10, var_5=0, var_8=6] [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)) VAL [\old(cond)=1, cond=1] [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 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, mask_SORT_19=4294967295, mask_SORT_1=1, mask_SORT_4=31, msb_SORT_19=2147483648, msb_SORT_1=1, msb_SORT_4=16, next_24_arg_1=6, next_28_arg_1=12, state_6=6, state_9=12, var_11=1, var_11_arg_0=4, var_11_arg_1=10, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=4, var_20_arg_0=4, var_21=2, var_22=6, var_22_arg_0=4, var_22_arg_1=2, var_23=6, var_23_arg_0=6, var_25=10, var_25_arg_0=10, var_26=12, var_26_arg_0=10, var_26_arg_1=2, var_27=12, var_27_arg_0=12, var_5=0, var_8=6] [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)) VAL [\old(cond)=1, cond=1] [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 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, mask_SORT_19=4294967295, mask_SORT_1=1, mask_SORT_4=31, msb_SORT_19=2147483648, msb_SORT_1=1, msb_SORT_4=16, next_24_arg_1=8, next_28_arg_1=14, state_6=8, state_9=14, var_11=1, var_11_arg_0=6, var_11_arg_1=12, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=6, var_20_arg_0=6, var_21=2, var_22=8, var_22_arg_0=6, var_22_arg_1=2, var_23=8, var_23_arg_0=8, var_25=12, var_25_arg_0=12, var_26=14, var_26_arg_0=12, var_26_arg_1=2, var_27=14, var_27_arg_0=14, var_5=0, var_8=6] [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)) VAL [\old(cond)=1, cond=1] [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 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, mask_SORT_19=4294967295, mask_SORT_1=1, mask_SORT_4=31, msb_SORT_19=2147483648, msb_SORT_1=1, msb_SORT_4=16, next_24_arg_1=10, next_28_arg_1=16, state_6=10, state_9=16, var_11=1, var_11_arg_0=8, var_11_arg_1=14, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=8, var_20_arg_0=8, var_21=2, var_22=10, var_22_arg_0=8, var_22_arg_1=2, var_23=10, var_23_arg_0=10, var_25=14, var_25_arg_0=14, var_26=16, var_26_arg_0=14, var_26_arg_1=2, var_27=16, var_27_arg_0=16, var_5=0, var_8=6] [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)) VAL [\old(cond)=1, cond=1] [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 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, mask_SORT_19=4294967295, mask_SORT_1=1, mask_SORT_4=31, msb_SORT_19=2147483648, msb_SORT_1=1, msb_SORT_4=16, next_24_arg_1=12, next_28_arg_1=18, state_6=12, state_9=18, var_11=1, var_11_arg_0=10, var_11_arg_1=16, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=10, var_20_arg_0=10, var_21=2, var_22=12, var_22_arg_0=10, var_22_arg_1=2, var_23=12, var_23_arg_0=12, var_25=16, var_25_arg_0=16, var_26=18, var_26_arg_0=16, var_26_arg_1=2, var_27=18, var_27_arg_0=18, var_5=0, var_8=6] [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)) VAL [\old(cond)=1, cond=1] [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 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, mask_SORT_19=4294967295, mask_SORT_1=1, mask_SORT_4=31, msb_SORT_19=2147483648, msb_SORT_1=1, msb_SORT_4=16, next_24_arg_1=14, next_28_arg_1=20, state_6=14, state_9=20, var_11=1, var_11_arg_0=12, var_11_arg_1=18, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=12, var_20_arg_0=12, var_21=2, var_22=14, var_22_arg_0=12, var_22_arg_1=2, var_23=14, var_23_arg_0=14, var_25=18, var_25_arg_0=18, var_26=20, var_26_arg_0=18, var_26_arg_1=2, var_27=20, var_27_arg_0=20, var_5=0, var_8=6] [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)) VAL [\old(cond)=1, cond=1] [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 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, mask_SORT_19=4294967295, mask_SORT_1=1, mask_SORT_4=31, msb_SORT_19=2147483648, msb_SORT_1=1, msb_SORT_4=16, next_24_arg_1=16, next_28_arg_1=22, state_6=16, state_9=22, var_11=1, var_11_arg_0=14, var_11_arg_1=20, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=14, var_20_arg_0=14, var_21=2, var_22=16, var_22_arg_0=14, var_22_arg_1=2, var_23=16, var_23_arg_0=16, var_25=20, var_25_arg_0=20, var_26=22, var_26_arg_0=20, var_26_arg_1=2, var_27=22, var_27_arg_0=22, var_5=0, var_8=6] [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)) VAL [\old(cond)=1, cond=1] [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 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, mask_SORT_19=4294967295, mask_SORT_1=1, mask_SORT_4=31, msb_SORT_19=2147483648, msb_SORT_1=1, msb_SORT_4=16, next_24_arg_1=18, next_28_arg_1=24, state_6=18, state_9=24, var_11=1, var_11_arg_0=16, var_11_arg_1=22, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=16, var_20_arg_0=16, var_21=2, var_22=18, var_22_arg_0=16, var_22_arg_1=2, var_23=18, var_23_arg_0=18, var_25=22, var_25_arg_0=22, var_26=24, var_26_arg_0=22, var_26_arg_1=2, var_27=24, var_27_arg_0=24, var_5=0, var_8=6] [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)) VAL [\old(cond)=1, cond=1] [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 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, mask_SORT_19=4294967295, mask_SORT_1=1, mask_SORT_4=31, msb_SORT_19=2147483648, msb_SORT_1=1, msb_SORT_4=16, next_24_arg_1=20, next_28_arg_1=26, state_6=20, state_9=26, var_11=1, var_11_arg_0=18, var_11_arg_1=24, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=18, var_20_arg_0=18, var_21=2, var_22=20, var_22_arg_0=18, var_22_arg_1=2, var_23=20, var_23_arg_0=20, var_25=24, var_25_arg_0=24, var_26=26, var_26_arg_0=24, var_26_arg_1=2, var_27=26, var_27_arg_0=26, var_5=0, var_8=6] [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)) VAL [\old(cond)=1, cond=1] [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 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, mask_SORT_19=4294967295, mask_SORT_1=1, mask_SORT_4=31, msb_SORT_19=2147483648, msb_SORT_1=1, msb_SORT_4=16, next_24_arg_1=22, next_28_arg_1=28, state_6=22, state_9=28, var_11=1, var_11_arg_0=20, var_11_arg_1=26, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=20, var_20_arg_0=20, var_21=2, var_22=22, var_22_arg_0=20, var_22_arg_1=2, var_23=22, var_23_arg_0=22, var_25=26, var_25_arg_0=26, var_26=28, var_26_arg_0=26, var_26_arg_1=2, var_27=28, var_27_arg_0=28, var_5=0, var_8=6] [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)) VAL [\old(cond)=1, cond=1] [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 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, mask_SORT_19=4294967295, mask_SORT_1=1, mask_SORT_4=31, msb_SORT_19=2147483648, msb_SORT_1=1, msb_SORT_4=16, next_24_arg_1=24, next_28_arg_1=30, state_6=24, state_9=30, var_11=1, var_11_arg_0=22, var_11_arg_1=28, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=22, var_20_arg_0=22, var_21=2, var_22=24, var_22_arg_0=22, var_22_arg_1=2, var_23=24, var_23_arg_0=24, var_25=28, var_25_arg_0=28, var_26=30, var_26_arg_0=28, var_26_arg_1=2, var_27=30, var_27_arg_0=30, var_5=0, var_8=6] [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)) VAL [\old(cond)=1, cond=1] [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 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, mask_SORT_19=4294967295, mask_SORT_1=1, mask_SORT_4=31, msb_SORT_19=2147483648, msb_SORT_1=1, msb_SORT_4=16, next_24_arg_1=26, next_28_arg_1=0, state_6=26, state_9=0, var_11=1, var_11_arg_0=24, var_11_arg_1=30, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=24, var_20_arg_0=24, var_21=2, var_22=26, var_22_arg_0=24, var_22_arg_1=2, var_23=26, var_23_arg_0=26, var_25=30, var_25_arg_0=30, var_26=32, var_26_arg_0=30, var_26_arg_1=2, var_27=0, var_27_arg_0=32, var_5=0, var_8=6] [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) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.9s, OverallIterations: 5, TraceHistogramMax: 14, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 92 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 76 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 344 IncrementalHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 16 mSDtfsCounter, 344 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, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=4, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 193 NumberOfCodeBlocks, 193 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 274 ConstructedInterpolants, 108 QuantifiedInterpolants, 23781 SizeOfPredicates, 725 NumberOfNonLiveVariables, 1380 ConjunctsInSsa, 801 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! [2023-11-19 05:03:11,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bba2c77b-5b23-42bb-ab5a-f306e8ff593b/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE