./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 772293f211c6e60706a5fda7648c49a0338c33d85350cc06edce04a6f02364fc --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:31:16,674 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:31:16,796 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 04:31:16,809 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:31:16,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:31:16,865 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:31:16,865 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:31:16,869 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:31:16,870 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:31:16,870 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:31:16,870 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:31:16,871 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:31:16,871 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:31:16,872 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:31:16,872 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:31:16,876 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:31:16,876 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:31:16,877 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:31:16,877 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:31:16,878 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:31:16,878 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:31:16,882 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:31:16,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:31:16,883 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:31:16,883 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:31:16,884 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:31:16,884 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:31:16,884 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:31:16,885 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:31:16,885 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:31:16,892 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:31:16,892 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:31:16,892 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:31:16,893 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:31:16,893 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:31:16,893 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:31:16,894 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:31:16,894 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:31:16,894 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:31:16,895 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:31:16,895 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:31:16,896 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:31:16,897 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:31:16,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:31:16,897 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:31:16,897 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:31:16,898 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:31:16,898 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_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 772293f211c6e60706a5fda7648c49a0338c33d85350cc06edce04a6f02364fc [2024-11-09 04:31:17,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:31:17,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:31:17,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:31:17,266 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:31:17,267 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:31:17,269 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound20.c Unable to find full path for "g++" [2024-11-09 04:31:19,422 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:31:19,620 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:31:19,621 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound20.c [2024-11-09 04:31:19,629 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/data/9f73a0d6b/2ba440745a4a4a52be9db566f9688170/FLAGe9f98444c [2024-11-09 04:31:19,647 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/data/9f73a0d6b/2ba440745a4a4a52be9db566f9688170 [2024-11-09 04:31:19,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:31:19,652 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:31:19,654 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:31:19,654 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:31:19,661 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:31:19,662 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:31:19" (1/1) ... [2024-11-09 04:31:19,663 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f3b126a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:19, skipping insertion in model container [2024-11-09 04:31:19,663 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:31:19" (1/1) ... [2024-11-09 04:31:19,686 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:31:19,879 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound20.c[524,537] [2024-11-09 04:31:19,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:31:19,910 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:31:19,925 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound20.c[524,537] [2024-11-09 04:31:19,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:31:19,951 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:31:19,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:19 WrapperNode [2024-11-09 04:31:19,952 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:31:19,953 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:31:19,954 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:31:19,954 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:31:19,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:19" (1/1) ... [2024-11-09 04:31:19,971 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:19" (1/1) ... [2024-11-09 04:31:19,989 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 39 [2024-11-09 04:31:19,990 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:31:19,991 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:31:19,991 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:31:19,991 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:31:20,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:19" (1/1) ... [2024-11-09 04:31:20,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:19" (1/1) ... [2024-11-09 04:31:20,004 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:19" (1/1) ... [2024-11-09 04:31:20,004 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:19" (1/1) ... [2024-11-09 04:31:20,012 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:19" (1/1) ... [2024-11-09 04:31:20,021 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:19" (1/1) ... [2024-11-09 04:31:20,022 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:19" (1/1) ... [2024-11-09 04:31:20,023 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:19" (1/1) ... [2024-11-09 04:31:20,025 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:31:20,026 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:31:20,026 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:31:20,027 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:31:20,028 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:19" (1/1) ... [2024-11-09 04:31:20,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:31:20,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:31:20,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:31:20,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:31:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:31:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 04:31:20,112 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 04:31:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:31:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:31:20,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:31:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 04:31:20,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 04:31:20,195 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:31:20,198 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:31:20,361 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-09 04:31:20,361 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:31:20,414 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:31:20,414 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 04:31:20,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:31:20 BoogieIcfgContainer [2024-11-09 04:31:20,415 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:31:20,419 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:31:20,419 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:31:20,430 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:31:20,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:31:19" (1/3) ... [2024-11-09 04:31:20,431 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df127d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:31:20, skipping insertion in model container [2024-11-09 04:31:20,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:19" (2/3) ... [2024-11-09 04:31:20,432 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df127d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:31:20, skipping insertion in model container [2024-11-09 04:31:20,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:31:20" (3/3) ... [2024-11-09 04:31:20,435 INFO L112 eAbstractionObserver]: Analyzing ICFG geo2-ll_valuebound20.c [2024-11-09 04:31:20,471 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:31:20,471 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:31:20,546 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:31:20,556 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3aec0218, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:31:20,556 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:31:20,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 04:31:20,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 04:31:20,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:20,568 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:20,568 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:31:20,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:20,575 INFO L85 PathProgramCache]: Analyzing trace with hash -838031573, now seen corresponding path program 1 times [2024-11-09 04:31:20,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:31:20,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291332148] [2024-11-09 04:31:20,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:20,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:31:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:31:20,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [672334812] [2024-11-09 04:31:20,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:20,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:20,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:31:20,744 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:31:20,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 04:31:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:20,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 04:31:20,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:21,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 04:31:21,007 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:31:21,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:31:21,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291332148] [2024-11-09 04:31:21,009 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 04:31:21,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672334812] [2024-11-09 04:31:21,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672334812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:21,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:31:21,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:31:21,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984273266] [2024-11-09 04:31:21,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:21,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:31:21,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:31:21,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:31:21,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:31:21,054 INFO L87 Difference]: Start difference. First operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:31:21,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:21,172 INFO L93 Difference]: Finished difference Result 40 states and 55 transitions. [2024-11-09 04:31:21,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:31:21,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-11-09 04:31:21,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:21,184 INFO L225 Difference]: With dead ends: 40 [2024-11-09 04:31:21,184 INFO L226 Difference]: Without dead ends: 24 [2024-11-09 04:31:21,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:31:21,192 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 4 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:21,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 51 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:31:21,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-09 04:31:21,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-09 04:31:21,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 04:31:21,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2024-11-09 04:31:21,239 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 14 [2024-11-09 04:31:21,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:21,240 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2024-11-09 04:31:21,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:31:21,240 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2024-11-09 04:31:21,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 04:31:21,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:21,242 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:21,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 04:31:21,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 04:31:21,447 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:31:21,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:21,448 INFO L85 PathProgramCache]: Analyzing trace with hash -420431113, now seen corresponding path program 1 times [2024-11-09 04:31:21,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:31:21,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733276772] [2024-11-09 04:31:21,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:21,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:31:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:31:21,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1251408688] [2024-11-09 04:31:21,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:21,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:21,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:31:21,519 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:31:21,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 04:31:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:21,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 04:31:21,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:21,846 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 04:31:21,846 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:31:24,569 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 2 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 04:31:24,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:31:24,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733276772] [2024-11-09 04:31:24,570 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 04:31:24,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251408688] [2024-11-09 04:31:24,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251408688] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:31:24,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [880072177] [2024-11-09 04:31:24,608 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2024-11-09 04:31:24,609 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:31:24,614 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:31:24,621 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:31:24,622 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:31:26,065 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 37 for LOIs [2024-11-09 04:31:26,179 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-09 04:31:26,215 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:31:41,370 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '296#(and (= |__VERIFIER_assert_#in~cond| 0) (exists ((|v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_13| Int) (|v_ULTIMATE.start_main_~c~0#1_BEFORE_CALL_9| Int) (|v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_11| Int) (|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_19| Int) (|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13| Int)) (and (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_19| 20) (<= 0 |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_11|) (not (= (mod (+ (* 18446744073709551615 |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_13| 18446744073709551615) 1) 18446744073709551616) 0)) (<= 1 |v_ULTIMATE.start_main_~c~0#1_BEFORE_CALL_9|) (<= 0 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_19|) (<= |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_11| 20))))' at error location [2024-11-09 04:31:41,370 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:31:41,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 04:31:41,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 10 [2024-11-09 04:31:41,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630361372] [2024-11-09 04:31:41,371 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 04:31:41,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 04:31:41,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:31:41,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 04:31:41,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=431, Unknown=5, NotChecked=0, Total=506 [2024-11-09 04:31:41,375 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-09 04:31:52,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:32:00,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:32:02,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:32:04,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:32:06,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:32:08,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:32:08,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:08,633 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2024-11-09 04:32:08,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 04:32:08,634 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 21 [2024-11-09 04:32:08,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:08,636 INFO L225 Difference]: With dead ends: 42 [2024-11-09 04:32:08,636 INFO L226 Difference]: Without dead ends: 37 [2024-11-09 04:32:08,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 32.6s TimeCoverageRelationStatistics Valid=89, Invalid=551, Unknown=10, NotChecked=0, Total=650 [2024-11-09 04:32:08,640 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 20 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 10 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:08,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 81 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 69 Invalid, 6 Unknown, 0 Unchecked, 12.3s Time] [2024-11-09 04:32:08,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-09 04:32:08,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-09 04:32:08,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 25 states have internal predecessors, (26), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 04:32:08,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2024-11-09 04:32:08,662 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 21 [2024-11-09 04:32:08,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:08,663 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2024-11-09 04:32:08,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-09 04:32:08,664 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2024-11-09 04:32:08,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 04:32:08,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:08,667 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:08,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 04:32:08,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:08,868 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:32:08,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:08,870 INFO L85 PathProgramCache]: Analyzing trace with hash 502729771, now seen corresponding path program 2 times [2024-11-09 04:32:08,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:08,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944556300] [2024-11-09 04:32:08,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:08,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:32:08,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1253191036] [2024-11-09 04:32:08,989 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:32:08,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:08,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:32:08,994 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:32:08,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 04:32:13,414 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 04:32:13,414 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:32:13,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 04:32:13,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:32:23,929 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-09 04:32:23,929 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:32:40,291 WARN L873 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~y~0#1| Int) (|ULTIMATE.start_main_~x~0#1| Int)) (or (not (= (mod (+ (* 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~y~0#1|) (* |c_ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~x~0#1|) (* 18446744073709551615 |ULTIMATE.start_main_~x~0#1|) 1) 18446744073709551616) 0)) (= (mod (+ (* 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~y~0#1|) (* |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~x~0#1|) |c_ULTIMATE.start_main_~z~0#1| (* 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~x~0#1|)) 18446744073709551616) 0))) is different from true [2024-11-09 04:32:40,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:40,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944556300] [2024-11-09 04:32:40,293 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 04:32:40,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253191036] [2024-11-09 04:32:40,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253191036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:32:40,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1476087978] [2024-11-09 04:32:40,296 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2024-11-09 04:32:40,296 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:32:40,296 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:32:40,297 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:32:40,297 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:32:40,994 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 37 for LOIs [2024-11-09 04:32:41,100 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-09 04:32:41,116 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:33:02,348 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '597#(and (= |__VERIFIER_assert_#in~cond| 0) (exists ((|v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_23| Int) (|v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_23| Int) (|v_ULTIMATE.start_main_~c~0#1_BEFORE_CALL_18| Int) (|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_23| Int) (|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_40| Int)) (and (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_23| 20) (<= 0 |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_23|) (not (= (mod (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_40| |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_23|) (* 18446744073709551615 |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_23|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_40| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_23| 18446744073709551615) 1) 18446744073709551616) 0)) (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_40| 20) (<= 0 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_40|) (<= 1 |v_ULTIMATE.start_main_~c~0#1_BEFORE_CALL_18|))))' at error location [2024-11-09 04:33:02,348 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:33:02,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:33:02,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 04:33:02,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845632690] [2024-11-09 04:33:02,349 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 04:33:02,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 04:33:02,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:02,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 04:33:02,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=605, Unknown=13, NotChecked=50, Total=756 [2024-11-09 04:33:02,352 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 3 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 04:33:04,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:33:06,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 04:33:08,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 04:33:18,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 04:33:18,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:18,522 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2024-11-09 04:33:18,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 04:33:18,522 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 3 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2024-11-09 04:33:18,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:18,523 INFO L225 Difference]: With dead ends: 37 [2024-11-09 04:33:18,523 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 04:33:18,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 41.9s TimeCoverageRelationStatistics Valid=101, Invalid=700, Unknown=15, NotChecked=54, Total=870 [2024-11-09 04:33:18,525 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 5 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:18,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 67 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 67 Invalid, 4 Unknown, 0 Unchecked, 8.3s Time] [2024-11-09 04:33:18,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 04:33:18,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 04:33:18,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:33:18,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 04:33:18,528 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2024-11-09 04:33:18,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:18,528 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 04:33:18,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 3 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 04:33:18,529 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 04:33:18,529 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 04:33:18,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 04:33:18,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 04:33:18,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:33:18,736 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-09 04:33:18,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 04:33:45,767 WARN L286 SmtUtils]: Spent 26.99s on a formula simplification. DAG size of input: 47 DAG size of output: 27 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 04:33:47,542 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:33:47,556 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:33:47,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:33:47 BoogieIcfgContainer [2024-11-09 04:33:47,568 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:33:47,569 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:33:47,569 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:33:47,569 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:33:47,570 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:31:20" (3/4) ... [2024-11-09 04:33:47,573 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 04:33:47,578 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-09 04:33:47,578 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-09 04:33:47,582 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-09 04:33:47,583 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-09 04:33:47,583 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 04:33:47,583 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 04:33:47,678 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 04:33:47,678 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 04:33:47,678 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:33:47,679 INFO L158 Benchmark]: Toolchain (without parser) took 148027.27ms. Allocated memory was 121.6MB in the beginning and 165.7MB in the end (delta: 44.0MB). Free memory was 83.9MB in the beginning and 83.9MB in the end (delta: -83.9kB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. [2024-11-09 04:33:47,679 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 121.6MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:33:47,680 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.00ms. Allocated memory is still 121.6MB. Free memory was 83.5MB in the beginning and 71.2MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 04:33:47,680 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.92ms. Allocated memory is still 121.6MB. Free memory was 71.2MB in the beginning and 69.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:33:47,681 INFO L158 Benchmark]: Boogie Preprocessor took 34.38ms. Allocated memory is still 121.6MB. Free memory was 69.5MB in the beginning and 68.7MB in the end (delta: 783.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:33:47,681 INFO L158 Benchmark]: RCFGBuilder took 389.00ms. Allocated memory was 121.6MB in the beginning and 165.7MB in the end (delta: 44.0MB). Free memory was 68.4MB in the beginning and 134.9MB in the end (delta: -66.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 04:33:47,681 INFO L158 Benchmark]: TraceAbstraction took 147149.58ms. Allocated memory is still 165.7MB. Free memory was 134.2MB in the beginning and 89.2MB in the end (delta: 45.0MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. [2024-11-09 04:33:47,682 INFO L158 Benchmark]: Witness Printer took 109.75ms. Allocated memory is still 165.7MB. Free memory was 89.2MB in the beginning and 83.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 04:33:47,684 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 121.6MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.00ms. Allocated memory is still 121.6MB. Free memory was 83.5MB in the beginning and 71.2MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.92ms. Allocated memory is still 121.6MB. Free memory was 71.2MB in the beginning and 69.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.38ms. Allocated memory is still 121.6MB. Free memory was 69.5MB in the beginning and 68.7MB in the end (delta: 783.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 389.00ms. Allocated memory was 121.6MB in the beginning and 165.7MB in the end (delta: 44.0MB). Free memory was 68.4MB in the beginning and 134.9MB in the end (delta: -66.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 147149.58ms. Allocated memory is still 165.7MB. Free memory was 134.2MB in the beginning and 89.2MB in the end (delta: 45.0MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. * Witness Printer took 109.75ms. Allocated memory is still 165.7MB. Free memory was 89.2MB in the beginning and 83.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 118.2s, OverallIterations: 3, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 43.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 20.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 199 SdHoareTripleChecker+Invalid, 20.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 162 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 168 IncrementalHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 37 mSDtfsCounter, 168 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 170 GetRequests, 111 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 74.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=2, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 4.7s SatisfiabilityAnalysisTime, 30.0s InterpolantComputationTime, 154 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 94 ConstructedInterpolants, 2 QuantifiedInterpolants, 483 SizeOfPredicates, 4 NumberOfNonLiveVariables, 193 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 68/74 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((z <= 20) && (x == 1)) && (y == 1)) && (0 <= z)) || ((z <= 20) && (0 <= z))) - ProcedureContractResult [Line: 11]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (cond != 0) - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (1 <= cond) Ensures: (1 <= cond) RESULT: Ultimate proved your program to be correct! [2024-11-09 04:33:47,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d662497-e3a1-4af0-858f-f6900ed7fa91/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE