./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-30.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/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_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/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_7826938e-6a6b-456d-b015-53df0f83c88f/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 14263a7f5b9de37c93df4817d1a8be828f9a9f73581f135551b120fdb5e36320 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:03:39,841 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:03:39,912 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 07:03:39,917 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:03:39,917 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:03:39,940 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:03:39,940 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:03:39,941 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:03:39,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:03:39,942 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:03:39,942 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:03:39,942 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:03:39,943 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:03:39,943 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:03:39,944 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:03:39,944 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:03:39,944 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:03:39,945 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:03:39,945 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:03:39,946 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:03:39,946 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:03:39,947 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:03:39,948 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:03:39,948 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:03:39,948 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:03:39,949 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:03:39,949 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:03:39,949 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:03:39,950 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:03:39,950 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:03:39,950 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:03:39,951 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:03:39,951 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:03:39,951 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:03:39,952 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:03:39,952 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:03:39,952 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:03:39,953 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:03:39,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:03:39,953 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:03:39,954 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:03:39,954 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:03:39,954 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:03:39,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:03:39,955 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:03:39,955 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:03:39,956 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:03:39,956 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_7826938e-6a6b-456d-b015-53df0f83c88f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14263a7f5b9de37c93df4817d1a8be828f9a9f73581f135551b120fdb5e36320 [2024-11-09 07:03:40,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:03:40,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:03:40,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:03:40,274 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:03:40,275 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:03:40,276 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-30.i Unable to find full path for "g++" [2024-11-09 07:03:42,753 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:03:43,033 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:03:43,034 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-30.i [2024-11-09 07:03:43,045 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/data/d38b2047f/0467c4b976bf4db2a488abede6f67756/FLAGd2d74a8e2 [2024-11-09 07:03:43,066 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/data/d38b2047f/0467c4b976bf4db2a488abede6f67756 [2024-11-09 07:03:43,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:03:43,071 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:03:43,073 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:03:43,073 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:03:43,081 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:03:43,082 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:03:43" (1/1) ... [2024-11-09 07:03:43,084 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bec171f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:43, skipping insertion in model container [2024-11-09 07:03:43,084 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:03:43" (1/1) ... [2024-11-09 07:03:43,125 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:03:43,360 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_7826938e-6a6b-456d-b015-53df0f83c88f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-30.i[915,928] [2024-11-09 07:03:43,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:03:43,423 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:03:43,439 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_7826938e-6a6b-456d-b015-53df0f83c88f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-30.i[915,928] [2024-11-09 07:03:43,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:03:43,529 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:03:43,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:43 WrapperNode [2024-11-09 07:03:43,530 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:03:43,531 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:03:43,532 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:03:43,533 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:03:43,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:43" (1/1) ... [2024-11-09 07:03:43,560 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:43" (1/1) ... [2024-11-09 07:03:43,620 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 86 [2024-11-09 07:03:43,624 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:03:43,625 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:03:43,625 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:03:43,626 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:03:43,644 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:43" (1/1) ... [2024-11-09 07:03:43,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:43" (1/1) ... [2024-11-09 07:03:43,649 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:43" (1/1) ... [2024-11-09 07:03:43,649 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:43" (1/1) ... [2024-11-09 07:03:43,660 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:43" (1/1) ... [2024-11-09 07:03:43,672 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:43" (1/1) ... [2024-11-09 07:03:43,674 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:43" (1/1) ... [2024-11-09 07:03:43,679 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:43" (1/1) ... [2024-11-09 07:03:43,682 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:03:43,687 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:03:43,687 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:03:43,687 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:03:43,689 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:43" (1/1) ... [2024-11-09 07:03:43,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:03:43,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:03:43,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:03:43,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:03:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:03:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 07:03:43,788 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 07:03:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:03:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:03:43,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:03:43,893 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:03:43,896 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:03:44,312 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-09 07:03:44,313 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:03:44,496 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:03:44,496 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 07:03:44,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:03:44 BoogieIcfgContainer [2024-11-09 07:03:44,497 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:03:44,501 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:03:44,501 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:03:44,505 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:03:44,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:03:43" (1/3) ... [2024-11-09 07:03:44,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b562ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:03:44, skipping insertion in model container [2024-11-09 07:03:44,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:43" (2/3) ... [2024-11-09 07:03:44,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b562ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:03:44, skipping insertion in model container [2024-11-09 07:03:44,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:03:44" (3/3) ... [2024-11-09 07:03:44,510 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-30.i [2024-11-09 07:03:44,533 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:03:44,533 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:03:44,613 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:03:44,621 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;@6236b7ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:03:44,621 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:03:44,625 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 07:03:44,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 07:03:44,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:03:44,638 INFO L215 NwaCegarLoop]: trace histogram [11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:03:44,639 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:03:44,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:44,646 INFO L85 PathProgramCache]: Analyzing trace with hash 868471729, now seen corresponding path program 1 times [2024-11-09 07:03:44,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:03:44,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811582463] [2024-11-09 07:03:44,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:44,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:03:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:03:45,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2122612997] [2024-11-09 07:03:45,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:45,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:03:45,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:03:45,088 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:03:45,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:03:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:03:45,308 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:03:45,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:03:45,442 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 07:03:45,446 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:03:45,448 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 07:03:45,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 07:03:45,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:03:45,659 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 07:03:45,708 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:03:45,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:03:45 BoogieIcfgContainer [2024-11-09 07:03:45,712 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:03:45,713 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:03:45,713 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:03:45,713 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:03:45,714 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:03:44" (3/4) ... [2024-11-09 07:03:45,719 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 07:03:45,720 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:03:45,721 INFO L158 Benchmark]: Toolchain (without parser) took 2649.86ms. Allocated memory is still 178.3MB. Free memory was 149.2MB in the beginning and 75.8MB in the end (delta: 73.4MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. [2024-11-09 07:03:45,722 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory is still 77.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:03:45,723 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.26ms. Allocated memory is still 178.3MB. Free memory was 149.2MB in the beginning and 135.1MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 07:03:45,724 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.42ms. Allocated memory is still 178.3MB. Free memory was 135.1MB in the beginning and 132.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:03:45,724 INFO L158 Benchmark]: Boogie Preprocessor took 60.90ms. Allocated memory is still 178.3MB. Free memory was 132.4MB in the beginning and 131.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:03:45,725 INFO L158 Benchmark]: RCFGBuilder took 810.64ms. Allocated memory is still 178.3MB. Free memory was 131.0MB in the beginning and 107.2MB in the end (delta: 23.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 07:03:45,726 INFO L158 Benchmark]: TraceAbstraction took 1211.48ms. Allocated memory is still 178.3MB. Free memory was 106.5MB in the beginning and 76.5MB in the end (delta: 30.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-09 07:03:45,726 INFO L158 Benchmark]: Witness Printer took 7.27ms. Allocated memory is still 178.3MB. Free memory was 76.5MB in the beginning and 75.8MB in the end (delta: 685.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:03:45,730 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory is still 77.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 457.26ms. Allocated memory is still 178.3MB. Free memory was 149.2MB in the beginning and 135.1MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.42ms. Allocated memory is still 178.3MB. Free memory was 135.1MB in the beginning and 132.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.90ms. Allocated memory is still 178.3MB. Free memory was 132.4MB in the beginning and 131.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 810.64ms. Allocated memory is still 178.3MB. Free memory was 131.0MB in the beginning and 107.2MB in the end (delta: 23.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1211.48ms. Allocated memory is still 178.3MB. Free memory was 106.5MB in the beginning and 76.5MB in the end (delta: 30.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 7.27ms. Allocated memory is still 178.3MB. Free memory was 76.5MB in the beginning and 75.8MB in the end (delta: 685.9kB). 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: 19]: 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 someBinaryFLOATComparisonOperation at line 82. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 64; [L23] unsigned char var_1_2 = 0; [L24] signed short int var_1_5 = 8; [L25] signed short int var_1_6 = -32; [L26] unsigned char var_1_7 = 100; [L27] signed long int var_1_8 = 32; [L28] float var_1_10 = 255.3; [L29] float var_1_13 = 2.8; [L30] signed long int last_1_var_1_8 = 32; [L86] isInitial = 1 [L87] FCALL initially() [L88] COND TRUE 1 [L89] CALL updateLastVariables() [L79] last_1_var_1_8 = var_1_8 [L89] RET updateLastVariables() [L90] CALL updateVariables() [L61] var_1_2 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_5=8, var_1_6=-32, var_1_7=100, var_1_8=32] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_5=8, var_1_6=-32, var_1_7=100, var_1_8=32] [L63] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=1, var_1_5=8, var_1_6=-32, var_1_7=100, var_1_8=32] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=1, var_1_5=8, var_1_6=-32, var_1_7=100, var_1_8=32] [L64] var_1_5 = __VERIFIER_nondet_short() [L65] CALL assume_abort_if_not(var_1_5 >= -32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=1, var_1_5=1, var_1_6=-32, var_1_7=100, var_1_8=32] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_5 >= -32768) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=1, var_1_5=1, var_1_6=-32, var_1_7=100, var_1_8=32] [L66] CALL assume_abort_if_not(var_1_5 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=1, var_1_5=1, var_1_6=-32, var_1_7=100, var_1_8=32] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_5 <= 32767) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=1, var_1_5=1, var_1_6=-32, var_1_7=100, var_1_8=32] [L67] CALL assume_abort_if_not(var_1_5 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=1, var_1_5=1, var_1_6=-32, var_1_7=100, var_1_8=32] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_5 != 0) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=1, var_1_5=1, var_1_6=-32, var_1_7=100, var_1_8=32] [L68] var_1_6 = __VERIFIER_nondet_short() [L69] CALL assume_abort_if_not(var_1_6 >= -32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=1, var_1_5=1, var_1_6=-33, var_1_7=100, var_1_8=32] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_6 >= -32768) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=1, var_1_5=1, var_1_6=-33, var_1_7=100, var_1_8=32] [L70] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=1, var_1_5=1, var_1_6=-33, var_1_7=100, var_1_8=32] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=1, var_1_5=1, var_1_6=-33, var_1_7=100, var_1_8=32] [L71] CALL assume_abort_if_not(var_1_6 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=1, var_1_5=1, var_1_6=-33, var_1_7=100, var_1_8=32] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_6 != 0) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=1, var_1_5=1, var_1_6=-33, var_1_7=100, var_1_8=32] [L72] var_1_7 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=1, var_1_5=1, var_1_6=-33, var_1_8=32] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=1, var_1_5=1, var_1_6=-33, var_1_8=32] [L74] CALL assume_abort_if_not(var_1_7 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=1, var_1_5=1, var_1_6=-33, var_1_7=-191, var_1_8=32] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_7 <= 254) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=1, var_1_5=1, var_1_6=-33, var_1_7=-191, var_1_8=32] [L75] var_1_13 = __VERIFIER_nondet_float() [L76] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_1=64, var_1_2=1, var_1_5=1, var_1_6=-33, var_1_7=-191, var_1_8=32] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_1=64, var_1_2=1, var_1_5=1, var_1_6=-33, var_1_7=-191, var_1_8=32] [L90] RET updateVariables() [L91] CALL step() [L34] signed long int stepLocal_0 = (last_1_var_1_8 / var_1_5) % var_1_6; [L35] COND TRUE \read(var_1_2) [L36] COND FALSE !(last_1_var_1_8 > stepLocal_0) [L42] unsigned char stepLocal_1 = var_1_1; [L43] COND FALSE !(stepLocal_1 < var_1_5) [L46] var_1_8 = var_1_7 [L48] COND TRUE ((var_1_6 * var_1_8) * var_1_7) <= (var_1_8 - var_1_1) [L49] COND TRUE var_1_5 <= (var_1_8 + var_1_8) [L50] var_1_10 = var_1_13 [L91] RET step() [L92] CALL, EXPR property() [L82-L83] return ((var_1_2 ? ((last_1_var_1_8 > ((last_1_var_1_8 / var_1_5) % var_1_6)) ? (var_1_1 == ((unsigned char) var_1_7)) : 1) : (var_1_1 == ((unsigned char) var_1_7))) && ((var_1_1 < var_1_5) ? (var_1_8 == ((signed long int) (var_1_1 - ((((var_1_7) < (var_1_1)) ? (var_1_7) : (var_1_1)))))) : (var_1_8 == ((signed long int) var_1_7)))) && ((((var_1_6 * var_1_8) * var_1_7) <= (var_1_8 - var_1_1)) ? ((var_1_5 <= (var_1_8 + var_1_8)) ? (var_1_10 == ((float) var_1_13)) : 1) : ((var_1_1 >= var_1_1) ? (var_1_10 == ((float) var_1_13)) : (var_1_10 == ((float) var_1_13)))) ; [L92] RET, EXPR property() [L92] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2, var_1_13=2, var_1_1=64, var_1_2=1, var_1_5=1, var_1_6=-33, var_1_7=-191, var_1_8=65] [L19] reach_error() VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2, var_1_13=2, var_1_1=64, var_1_2=1, var_1_5=1, var_1_6=-33, var_1_7=-191, var_1_8=65] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 11, 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=25occurred 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, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 07:03:45,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/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_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/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 14263a7f5b9de37c93df4817d1a8be828f9a9f73581f135551b120fdb5e36320 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:03:48,795 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:03:48,925 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 07:03:48,935 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:03:48,936 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:03:48,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:03:48,977 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:03:48,977 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:03:48,978 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:03:48,978 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:03:48,979 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:03:48,979 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:03:48,980 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:03:48,980 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:03:48,981 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:03:48,981 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:03:48,982 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:03:48,982 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:03:48,983 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:03:48,983 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:03:48,983 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:03:48,987 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:03:48,988 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:03:48,988 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:03:48,989 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 07:03:48,989 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 07:03:48,989 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:03:48,990 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 07:03:48,990 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:03:48,990 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:03:48,994 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:03:48,995 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:03:48,995 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:03:48,996 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:03:48,997 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:03:48,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:03:48,997 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:03:48,998 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:03:48,998 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:03:48,998 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 07:03:48,999 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 07:03:49,001 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:03:49,018 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:03:49,018 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14263a7f5b9de37c93df4817d1a8be828f9a9f73581f135551b120fdb5e36320 [2024-11-09 07:03:49,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:03:49,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:03:49,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:03:49,554 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:03:49,554 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:03:49,556 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-30.i Unable to find full path for "g++" [2024-11-09 07:03:51,972 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:03:52,349 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:03:52,350 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-30.i [2024-11-09 07:03:52,363 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/data/bfb9bc117/b8e7514f9b1446b6b15572ffe153d703/FLAG289b53590 [2024-11-09 07:03:52,388 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/data/bfb9bc117/b8e7514f9b1446b6b15572ffe153d703 [2024-11-09 07:03:52,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:03:52,395 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:03:52,399 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:03:52,399 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:03:52,406 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:03:52,411 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:03:52" (1/1) ... [2024-11-09 07:03:52,412 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19553a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:52, skipping insertion in model container [2024-11-09 07:03:52,413 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:03:52" (1/1) ... [2024-11-09 07:03:52,450 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:03:52,747 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_7826938e-6a6b-456d-b015-53df0f83c88f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-30.i[915,928] [2024-11-09 07:03:52,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:03:52,851 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:03:52,871 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_7826938e-6a6b-456d-b015-53df0f83c88f/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-30.i[915,928] [2024-11-09 07:03:52,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:03:52,946 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:03:52,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:52 WrapperNode [2024-11-09 07:03:52,948 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:03:52,950 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:03:52,950 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:03:52,950 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:03:52,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:52" (1/1) ... [2024-11-09 07:03:52,981 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:52" (1/1) ... [2024-11-09 07:03:53,029 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 84 [2024-11-09 07:03:53,029 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:03:53,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:03:53,030 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:03:53,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:03:53,044 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:52" (1/1) ... [2024-11-09 07:03:53,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:52" (1/1) ... [2024-11-09 07:03:53,050 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:52" (1/1) ... [2024-11-09 07:03:53,051 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:52" (1/1) ... [2024-11-09 07:03:53,063 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:52" (1/1) ... [2024-11-09 07:03:53,075 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:52" (1/1) ... [2024-11-09 07:03:53,077 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:52" (1/1) ... [2024-11-09 07:03:53,083 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:52" (1/1) ... [2024-11-09 07:03:53,090 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:03:53,091 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:03:53,095 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:03:53,095 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:03:53,097 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:52" (1/1) ... [2024-11-09 07:03:53,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:03:53,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:03:53,144 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:03:53,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:03:53,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:03:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 07:03:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 07:03:53,190 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 07:03:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:03:53,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:03:53,316 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:03:53,319 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:03:53,890 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-09 07:03:53,891 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:03:53,915 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:03:53,915 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 07:03:53,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:03:53 BoogieIcfgContainer [2024-11-09 07:03:53,916 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:03:53,920 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:03:53,920 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:03:53,925 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:03:53,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:03:52" (1/3) ... [2024-11-09 07:03:53,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bdd2c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:03:53, skipping insertion in model container [2024-11-09 07:03:53,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:52" (2/3) ... [2024-11-09 07:03:53,928 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bdd2c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:03:53, skipping insertion in model container [2024-11-09 07:03:53,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:03:53" (3/3) ... [2024-11-09 07:03:53,931 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-30.i [2024-11-09 07:03:53,951 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:03:53,952 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:03:54,029 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:03:54,037 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;@4b5363ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:03:54,037 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:03:54,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 07:03:54,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 07:03:54,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:03:54,056 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:03:54,056 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:03:54,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:54,063 INFO L85 PathProgramCache]: Analyzing trace with hash -224234091, now seen corresponding path program 1 times [2024-11-09 07:03:54,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:03:54,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [975057984] [2024-11-09 07:03:54,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:54,081 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:03:54,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:03:54,083 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:03:54,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 07:03:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:54,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 07:03:54,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:03:54,516 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-09 07:03:54,516 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:03:54,521 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:03:54,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [975057984] [2024-11-09 07:03:54,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [975057984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:03:54,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:03:54,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:03:54,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759025132] [2024-11-09 07:03:54,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:03:54,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 07:03:54,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:03:54,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 07:03:54,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:03:54,585 INFO L87 Difference]: Start difference. First operand has 42 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:03:54,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:03:54,617 INFO L93 Difference]: Finished difference Result 77 states and 127 transitions. [2024-11-09 07:03:54,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 07:03:54,620 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 74 [2024-11-09 07:03:54,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:03:54,630 INFO L225 Difference]: With dead ends: 77 [2024-11-09 07:03:54,630 INFO L226 Difference]: Without dead ends: 38 [2024-11-09 07:03:54,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:03:54,639 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:03:54,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:03:54,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-09 07:03:54,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-09 07:03:54,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 07:03:54,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 53 transitions. [2024-11-09 07:03:54,712 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 53 transitions. Word has length 74 [2024-11-09 07:03:54,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:03:54,713 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 53 transitions. [2024-11-09 07:03:54,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:03:54,716 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2024-11-09 07:03:54,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 07:03:54,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:03:54,722 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:03:54,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-09 07:03:54,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:03:54,924 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:03:54,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:54,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1128730733, now seen corresponding path program 1 times [2024-11-09 07:03:54,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:03:54,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624124980] [2024-11-09 07:03:54,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:54,931 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:03:54,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:03:54,935 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:03:54,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 07:03:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:55,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 07:03:55,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:04:06,069 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-09 07:04:06,069 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:04:06,069 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:04:06,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1624124980] [2024-11-09 07:04:06,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1624124980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:04:06,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:04:06,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 07:04:06,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361451517] [2024-11-09 07:04:06,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:04:06,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 07:04:06,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:04:06,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 07:04:06,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-09 07:04:06,080 INFO L87 Difference]: Start difference. First operand 38 states and 53 transitions. Second operand has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:04:12,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:04:12,157 INFO L93 Difference]: Finished difference Result 109 states and 144 transitions. [2024-11-09 07:04:12,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 07:04:12,164 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 74 [2024-11-09 07:04:12,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:04:12,167 INFO L225 Difference]: With dead ends: 109 [2024-11-09 07:04:12,169 INFO L226 Difference]: Without dead ends: 74 [2024-11-09 07:04:12,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=134, Invalid=418, Unknown=0, NotChecked=0, Total=552 [2024-11-09 07:04:12,172 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 104 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:04:12,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 177 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-09 07:04:12,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-09 07:04:12,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 49. [2024-11-09 07:04:12,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 35 states have internal predecessors, (43), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 07:04:12,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 65 transitions. [2024-11-09 07:04:12,221 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 65 transitions. Word has length 74 [2024-11-09 07:04:12,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:04:12,222 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 65 transitions. [2024-11-09 07:04:12,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:04:12,223 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 65 transitions. [2024-11-09 07:04:12,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 07:04:12,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:04:12,233 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:04:12,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-09 07:04:12,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:04:12,434 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:04:12,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:12,435 INFO L85 PathProgramCache]: Analyzing trace with hash -892309357, now seen corresponding path program 1 times [2024-11-09 07:04:12,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:04:12,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1933675095] [2024-11-09 07:04:12,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:12,436 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:04:12,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:04:12,440 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:04:12,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-09 07:04:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:12,777 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 07:04:12,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:04:21,229 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 132 proven. 15 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-09 07:04:21,230 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:05:09,561 WARN L286 SmtUtils]: Spent 22.68s on a formula simplification that was a NOOP. DAG size: 107 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:05:55,449 WARN L286 SmtUtils]: Spent 24.24s on a formula simplification that was a NOOP. DAG size: 106 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:06:41,590 WARN L286 SmtUtils]: Spent 20.21s on a formula simplification that was a NOOP. DAG size: 88 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:07:23,148 WARN L286 SmtUtils]: Spent 22.21s on a formula simplification. DAG size of input: 85 DAG size of output: 82 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:07:50,050 WARN L286 SmtUtils]: Spent 8.48s on a formula simplification that was a NOOP. DAG size: 69 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:08:03,773 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-09 07:08:03,774 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:08:03,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1933675095] [2024-11-09 07:08:03,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1933675095] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 07:08:03,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:08:03,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 26 [2024-11-09 07:08:03,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607584458] [2024-11-09 07:08:03,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:08:03,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:08:03,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:08:03,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:08:03,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=529, Unknown=5, NotChecked=0, Total=650 [2024-11-09 07:08:03,779 INFO L87 Difference]: Start difference. First operand 49 states and 65 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:08:09,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:08:39,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:08:53,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:08:55,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:08:56,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:09:12,832 WARN L286 SmtUtils]: Spent 9.82s on a formula simplification. DAG size of input: 76 DAG size of output: 81 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:09:14,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:09:44,168 WARN L286 SmtUtils]: Spent 25.37s on a formula simplification. DAG size of input: 93 DAG size of output: 98 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:09:47,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:09:51,139 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse13 ((_ zero_extend 24) c_~var_1_1~0))) (let ((.cse14 (bvneg .cse13)) (.cse20 ((_ zero_extend 24) c_~var_1_7~0))) (let ((.cse18 (= (_ bv0 8) c_~var_1_2~0)) (.cse6 ((_ sign_extend 16) c_~var_1_5~0)) (.cse45 (bvadd .cse14 .cse20))) (let ((.cse21 (bvadd c_~var_1_8~0 .cse14)) (.cse37 (forall ((~var_1_6~0 (_ BitVec 16))) (bvsle (bvmul (bvmul ((_ sign_extend 16) ~var_1_6~0) .cse20) .cse20) .cse45))) (.cse7 (fp.eq c_~var_1_13~0 c_~var_1_13~0)) (.cse31 (bvadd (bvneg .cse20) .cse13)) (.cse47 (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse49 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse6) .cse49))) (bvsle (bvmul (bvmul .cse49 .cse20) .cse20) .cse45))))) (.cse17 (= .cse13 .cse20)) (.cse22 (not .cse18))) (let ((.cse4 (bvslt .cse13 .cse6)) (.cse39 (or (and (or .cse17 (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse48 ((_ sign_extend 16) ~var_1_6~0))) (or (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse6) .cse48)) (bvsle (bvmul (bvmul .cse48 .cse20) .cse20) .cse45))))) (or .cse47 .cse17)) .cse22)) (.cse40 (or .cse47 .cse17 .cse18)) (.cse2 (bvslt .cse20 .cse13)) (.cse36 (= .cse31 .cse20)) (.cse34 (or .cse47 .cse18)) (.cse35 (or (and (forall ((~var_1_6~0 (_ BitVec 16))) (let ((.cse44 ((_ sign_extend 16) ~var_1_6~0))) (or (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse6) .cse44)))) (bvsle (bvmul (bvmul .cse44 .cse20) .cse20) .cse45)))) (forall ((~var_1_6~0 (_ BitVec 16))) (let ((.cse46 ((_ sign_extend 16) ~var_1_6~0))) (or (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse6) .cse46))) (bvsle (bvmul (bvmul .cse46 .cse20) .cse20) .cse45))))) .cse22)) (.cse38 (or .cse37 .cse7)) (.cse29 (= c_~var_1_8~0 .cse20)) (.cse15 (forall ((~var_1_6~0 (_ BitVec 16))) (bvsle (bvmul (bvmul c_~var_1_8~0 ((_ sign_extend 16) ~var_1_6~0)) .cse20) .cse21)))) (let ((.cse8 (or .cse29 .cse15)) (.cse10 (or .cse15 .cse7)) (.cse16 (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse43 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse6) .cse43))) (bvsle (bvmul (bvmul c_~var_1_8~0 .cse43) .cse20) .cse21))))) (.cse0 (and (or (let ((.cse41 (bvsle .cse6 (bvmul (_ bv2 32) .cse20))) (.cse42 (and .cse34 .cse35))) (and (or (not .cse41) .cse42) .cse38 (or .cse41 .cse42))) .cse36) (or (not .cse36) (and .cse34 .cse35 .cse38)))) (.cse1 (not .cse2)) (.cse3 (and .cse39 .cse38 .cse40)) (.cse12 (not .cse4))) (and (or (and (or .cse0 .cse1) (or .cse2 .cse3)) .cse4) (or (forall ((~var_1_7~0 (_ BitVec 8)) (~var_1_6~0 (_ BitVec 16))) (let ((.cse5 ((_ zero_extend 24) ~var_1_7~0))) (or (bvsle (bvmul .cse5 (bvmul .cse5 ((_ sign_extend 16) ~var_1_6~0))) (bvadd (bvneg .cse5) .cse5)) (bvslt .cse5 .cse6)))) .cse7) (or .cse2 (let ((.cse9 (or (and (or .cse17 (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse19 ((_ sign_extend 16) ~var_1_6~0))) (or (bvsle (bvmul (bvmul c_~var_1_8~0 .cse19) .cse20) .cse21) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse6) .cse19)))))) (or .cse16 .cse17)) .cse22)) (.cse11 (or .cse16 .cse17 .cse18))) (and (or (and .cse8 .cse9 .cse10 .cse11) .cse4) (or .cse12 (and .cse9 .cse10 (or (= c_~var_1_8~0 (bvadd .cse13 .cse14)) .cse15) .cse11))))) (or .cse1 (let ((.cse26 (or .cse16 .cse18)) (.cse27 (or (and (forall ((~var_1_6~0 (_ BitVec 16))) (let ((.cse32 ((_ sign_extend 16) ~var_1_6~0))) (or (bvsle (bvmul (bvmul c_~var_1_8~0 .cse32) .cse20) .cse21) (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse6) .cse32))))))) (forall ((~var_1_6~0 (_ BitVec 16))) (let ((.cse33 ((_ sign_extend 16) ~var_1_6~0))) (or (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse6) .cse33))) (bvsle (bvmul (bvmul c_~var_1_8~0 .cse33) .cse20) .cse21))))) .cse22))) (let ((.cse28 (and .cse26 .cse27)) (.cse30 (bvsle .cse6 (bvmul (_ bv2 32) c_~var_1_8~0)))) (let ((.cse25 (= c_~var_1_8~0 .cse31)) (.cse23 (or .cse28 .cse30)) (.cse24 (or (not .cse30) .cse28))) (and (or (and (or (and .cse8 .cse10 .cse23 .cse24) .cse25) (or (not .cse25) (and .cse8 .cse26 .cse27 .cse10))) .cse4) (or .cse12 (and (or .cse28 (not .cse29)) .cse10 (or .cse15 .cse25) (or .cse29 (and .cse23 .cse24))))))))) (or (and (or (and (or .cse0 .cse4) (or (and .cse34 .cse35 (or .cse36 .cse37) .cse38) .cse12)) .cse1) (or .cse2 (and (or .cse3 .cse4) (or .cse12 (and .cse39 .cse37 .cse38 .cse40))))) (bvslt ((_ zero_extend 24) |c_ULTIMATE.start_step_~stepLocal_1~0#1|) .cse6))))))))) is different from true [2024-11-09 07:09:53,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:09:57,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:09:59,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:01,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:03,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:05,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:10,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:12,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:14,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:16,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:19,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:21,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:24,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:27,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:29,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:32,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:35,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:37,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:11:21,076 WARN L286 SmtUtils]: Spent 34.44s on a formula simplification that was a NOOP. DAG size: 111 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:11:23,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:11:25,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:11:29,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:11:32,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:22,188 WARN L286 SmtUtils]: Spent 40.90s on a formula simplification that was a NOOP. DAG size: 111 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:12:24,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:27,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:29,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:31,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:33,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:36,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:38,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:40,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:41,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:44,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:45,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:47,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:48,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:50,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:53,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:54,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:12:54,131 INFO L93 Difference]: Finished difference Result 90 states and 112 transitions. [2024-11-09 07:12:54,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 07:12:54,136 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 74 [2024-11-09 07:12:54,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:12:54,141 INFO L225 Difference]: With dead ends: 90 [2024-11-09 07:12:54,143 INFO L226 Difference]: Without dead ends: 88 [2024-11-09 07:12:54,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 297.5s TimeCoverageRelationStatistics Valid=151, Invalid=711, Unknown=12, NotChecked=56, Total=930 [2024-11-09 07:12:54,145 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 106 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 14 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 143.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 152.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:12:54,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 220 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 307 Invalid, 19 Unknown, 21 Unchecked, 152.7s Time] [2024-11-09 07:12:54,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-09 07:12:54,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 66. [2024-11-09 07:12:54,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 50 states have internal predecessors, (61), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 07:12:54,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 87 transitions. [2024-11-09 07:12:54,163 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 87 transitions. Word has length 74 [2024-11-09 07:12:54,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:12:54,164 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 87 transitions. [2024-11-09 07:12:54,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:12:54,165 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 87 transitions. [2024-11-09 07:12:54,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 07:12:54,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:12:54,167 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:12:54,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-09 07:12:54,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:12:54,368 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:12:54,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:12:54,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1391229201, now seen corresponding path program 1 times [2024-11-09 07:12:54,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:12:54,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780620260] [2024-11-09 07:12:54,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:12:54,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:12:54,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:12:54,373 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:12:54,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-09 07:12:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:12:54,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 07:12:54,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:12:55,966 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 114 proven. 18 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-09 07:12:55,966 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:12:57,141 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 07:12:57,141 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:12:57,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780620260] [2024-11-09 07:12:57,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780620260] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 07:12:57,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:12:57,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-09 07:12:57,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270465211] [2024-11-09 07:12:57,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:12:57,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:12:57,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:12:57,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:12:57,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-09 07:12:57,145 INFO L87 Difference]: Start difference. First operand 66 states and 87 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:12:59,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:12:59,498 INFO L93 Difference]: Finished difference Result 190 states and 237 transitions. [2024-11-09 07:12:59,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:12:59,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 74 [2024-11-09 07:12:59,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:12:59,503 INFO L225 Difference]: With dead ends: 190 [2024-11-09 07:12:59,503 INFO L226 Difference]: Without dead ends: 127 [2024-11-09 07:12:59,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-09 07:12:59,505 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 70 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:12:59,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 161 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 07:12:59,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-09 07:12:59,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 59. [2024-11-09 07:12:59,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 44 states have (on average 1.25) internal successors, (55), 44 states have internal predecessors, (55), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 07:12:59,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 77 transitions. [2024-11-09 07:12:59,526 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 77 transitions. Word has length 74 [2024-11-09 07:12:59,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:12:59,527 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 77 transitions. [2024-11-09 07:12:59,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:12:59,527 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 77 transitions. [2024-11-09 07:12:59,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 07:12:59,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:12:59,529 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:12:59,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-09 07:12:59,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:12:59,730 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:12:59,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:12:59,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1393076243, now seen corresponding path program 1 times [2024-11-09 07:12:59,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:12:59,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [492521446] [2024-11-09 07:12:59,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:12:59,732 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:12:59,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:12:59,735 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:12:59,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7826938e-6a6b-456d-b015-53df0f83c88f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-09 07:12:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:12:59,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 07:12:59,971 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:13:05,797 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 114 proven. 18 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-09 07:13:05,798 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:13:40,968 WARN L286 SmtUtils]: Spent 13.11s on a formula simplification. DAG size of input: 64 DAG size of output: 63 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:13:55,929 WARN L286 SmtUtils]: Spent 6.78s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:14:23,832 WARN L286 SmtUtils]: Spent 14.82s on a formula simplification that was a NOOP. DAG size: 74 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:15:13,978 WARN L286 SmtUtils]: Spent 27.11s on a formula simplification. DAG size of input: 82 DAG size of output: 80 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:15:43,660 WARN L286 SmtUtils]: Spent 11.58s on a formula simplification that was a NOOP. DAG size: 71 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:15:44,374 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 07:15:44,374 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:15:44,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [492521446] [2024-11-09 07:15:44,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [492521446] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 07:15:44,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:15:44,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2024-11-09 07:15:44,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485059862] [2024-11-09 07:15:44,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:15:44,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 07:15:44,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:15:44,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 07:15:44,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=247, Unknown=2, NotChecked=0, Total=306 [2024-11-09 07:15:44,377 INFO L87 Difference]: Start difference. First operand 59 states and 77 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:15:46,849 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ zero_extend 24) c_~var_1_7~0)) (.cse46 ((_ zero_extend 24) c_~var_1_1~0))) (let ((.cse39 (bvneg .cse46)) (.cse47 (bvneg .cse3)) (.cse24 (= (_ bv0 8) c_~var_1_2~0))) (let ((.cse23 (not .cse24)) (.cse2 (bvadd .cse47 .cse46)) (.cse4 (bvadd .cse47 .cse46 .cse39)) (.cse40 (bvadd .cse46 .cse39)) (.cse43 (bvadd .cse46 (bvmul (_ bv2 32) .cse39))) (.cse0 ((_ sign_extend 16) c_~var_1_5~0))) (let ((.cse25 (bvslt .cse3 .cse46)) (.cse16 (= c_~var_1_8~0 .cse3)) (.cse6 (bvslt .cse46 .cse0)) (.cse26 (= .cse46 .cse3)) (.cse41 (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse51 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse51))) (not (bvsle (bvmul .cse3 (bvmul .cse51 .cse40)) .cse43)))))) (.cse1 (or (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse50 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse50))) (not (bvsle (bvmul (bvmul .cse2 .cse50) .cse3) .cse4))))) .cse24)) (.cse5 (or (and (forall ((~var_1_6~0 (_ BitVec 16))) (let ((.cse48 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul (bvmul .cse2 .cse48) .cse3) .cse4)) (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse48))))))) (forall ((~var_1_6~0 (_ BitVec 16))) (let ((.cse49 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul (bvmul .cse2 .cse49) .cse3) .cse4)) (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse49))))))) .cse23))) (let ((.cse10 (bvsle .cse0 (bvadd (bvmul (_ bv2 32) .cse46) (bvmul (_ bv2 32) .cse47)))) (.cse8 (let ((.cse44 (= .cse2 .cse3)) (.cse45 (and .cse1 .cse5))) (and (or .cse44 .cse45) (or (not .cse44) .cse45)))) (.cse11 (or (and (or .cse26 (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse42 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul .cse3 (bvmul .cse42 .cse40)) .cse43)) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse42)))))) (or .cse26 .cse41)) .cse23)) (.cse12 (or .cse26 .cse41 .cse24)) (.cse7 (not .cse6)) (.cse19 (not .cse16)) (.cse20 (= c_~var_1_8~0 .cse2)) (.cse9 (not .cse25)) (.cse27 (= c_~var_1_8~0 .cse40)) (.cse29 (bvadd c_~var_1_8~0 .cse39)) (.cse13 (bvsle .cse0 (bvmul (_ bv2 32) c_~var_1_8~0)))) (and (or (not (bvslt ((_ zero_extend 24) |c_ULTIMATE.start_step_~stepLocal_1~0#1|) .cse0)) (and (or (and (or (and .cse1 (forall ((~var_1_6~0 (_ BitVec 16))) (not (bvsle (bvmul (bvmul .cse2 ((_ sign_extend 16) ~var_1_6~0)) .cse3) .cse4))) .cse5) .cse6) (or .cse7 .cse8)) .cse9 .cse10) .cse11 .cse12)) (or .cse13 (let ((.cse28 ((_ sign_extend 16) c_~var_1_6~0))) (let ((.cse21 (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse28)))) (.cse14 (bvsle (bvmul (bvmul c_~var_1_8~0 .cse28) .cse3) .cse29)) (.cse22 (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse28)))))) (and (or (let ((.cse15 (or .cse22 .cse24)) (.cse17 (or (and .cse21 .cse22) .cse23))) (and .cse14 (or .cse6 (and .cse15 .cse16 .cse17)) (or .cse7 (let ((.cse18 (and .cse15 .cse17))) (and (or .cse16 .cse18) (or .cse19 .cse18) .cse20))))) .cse9) (or .cse25 (and (or .cse23 (and (or .cse26 .cse22) (or .cse26 .cse21))) .cse14 .cse27 (or .cse26 .cse22 .cse24))))))) (or .cse7 (and (or .cse9 .cse10 .cse8) .cse11 .cse12)) (or (let ((.cse30 (forall ((~var_1_6~0 (_ BitVec 16))) (not (bvsle (bvmul (bvmul c_~var_1_8~0 ((_ sign_extend 16) ~var_1_6~0)) .cse3) .cse29)))) (.cse34 (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse38 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse38))) (not (bvsle (bvmul (bvmul c_~var_1_8~0 .cse38) .cse3) .cse29))))))) (and (or (let ((.cse31 (or (and (forall ((~var_1_6~0 (_ BitVec 16))) (let ((.cse35 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul (bvmul c_~var_1_8~0 .cse35) .cse3) .cse29)) (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse35))))))) (forall ((~var_1_6~0 (_ BitVec 16))) (let ((.cse36 ((_ sign_extend 16) ~var_1_6~0))) (or (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse36))) (not (bvsle (bvmul (bvmul c_~var_1_8~0 .cse36) .cse3) .cse29)))))) .cse23)) (.cse32 (or .cse34 .cse24))) (and (or (and (or .cse30 .cse16) .cse31 .cse32) .cse6) (or .cse7 (let ((.cse33 (and .cse31 .cse32))) (and (or .cse19 .cse33) (or .cse30 .cse20) (or .cse16 .cse33)))))) .cse9) (or .cse25 (and (or .cse30 .cse27) (or .cse34 .cse26 .cse24) (or (and (or .cse26 (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse37 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul (bvmul c_~var_1_8~0 .cse37) .cse3) .cse29)) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse37)))))) (or .cse34 .cse26)) .cse23))))) .cse13))))))) is different from true [2024-11-09 07:15:52,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:15:53,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:15:54,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:16:00,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:16:02,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:16:05,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:16:06,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:16:09,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:16:13,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:16:17,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:16:18,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:16:21,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:16:22,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:16:24,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:16:27,867 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ zero_extend 24) c_~var_1_7~0)) (.cse22 ((_ zero_extend 24) c_~var_1_1~0))) (let ((.cse28 (bvneg .cse22)) (.cse23 (bvneg .cse3)) (.cse15 (= (_ bv0 8) c_~var_1_2~0))) (let ((.cse19 (not .cse15)) (.cse2 (bvadd .cse23 .cse22)) (.cse4 (bvadd .cse23 .cse22 .cse28)) (.cse0 ((_ sign_extend 16) c_~var_1_5~0)) (.cse17 (bvadd .cse22 .cse28)) (.cse18 (bvadd .cse22 (bvmul (_ bv2 32) .cse28)))) (let ((.cse13 (= .cse22 .cse3)) (.cse14 (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse27 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse27))) (not (bvsle (bvmul .cse3 (bvmul .cse27 .cse17)) .cse18)))))) (.cse1 (or (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse26 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse26))) (not (bvsle (bvmul (bvmul .cse2 .cse26) .cse3) .cse4))))) .cse15)) (.cse5 (or (and (forall ((~var_1_6~0 (_ BitVec 16))) (let ((.cse24 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul (bvmul .cse2 .cse24) .cse3) .cse4)) (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse24))))))) (forall ((~var_1_6~0 (_ BitVec 16))) (let ((.cse25 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul (bvmul .cse2 .cse25) .cse3) .cse4)) (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse25))))))) .cse19)) (.cse6 (bvslt .cse22 .cse0))) (let ((.cse7 (not .cse6)) (.cse9 (not (bvslt .cse3 .cse22))) (.cse10 (bvsle .cse0 (bvadd (bvmul (_ bv2 32) .cse22) (bvmul (_ bv2 32) .cse23)))) (.cse8 (let ((.cse20 (= .cse2 .cse3)) (.cse21 (and .cse1 .cse5))) (and (or .cse20 .cse21) (or (not .cse20) .cse21)))) (.cse11 (or (and (or .cse13 (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse16 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul .cse3 (bvmul .cse16 .cse17)) .cse18)) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse16)))))) (or .cse13 .cse14)) .cse19)) (.cse12 (or .cse13 .cse14 .cse15))) (and (or (not (bvslt ((_ zero_extend 24) |c_ULTIMATE.start_step_~stepLocal_1~0#1|) .cse0)) (and (or (and (or (and .cse1 (forall ((~var_1_6~0 (_ BitVec 16))) (not (bvsle (bvmul (bvmul .cse2 ((_ sign_extend 16) ~var_1_6~0)) .cse3) .cse4))) .cse5) .cse6) (or .cse7 .cse8)) .cse9 .cse10) .cse11 .cse12)) (or .cse7 (and (or .cse9 .cse10 .cse8) .cse11 .cse12)))))))) is different from true [2024-11-09 07:16:29,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:16:30,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:16:31,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:16:33,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:16:36,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:16:38,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:16:40,792 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ zero_extend 24) c_~var_1_7~0)) (.cse35 ((_ zero_extend 24) c_~var_1_1~0))) (let ((.cse29 (bvneg .cse35)) (.cse36 (bvneg .cse3)) (.cse19 (= (_ bv0 8) c_~var_1_2~0))) (let ((.cse23 (not .cse19)) (.cse2 (bvadd .cse36 .cse35)) (.cse4 (bvadd .cse36 .cse35 .cse29)) (.cse25 (bvadd .cse35 .cse29)) (.cse32 (bvadd .cse35 (bvmul (_ bv2 32) .cse29))) (.cse0 ((_ sign_extend 16) c_~var_1_5~0))) (let ((.cse24 (bvslt .cse3 .cse35)) (.cse6 (bvslt .cse35 .cse0)) (.cse26 (= .cse35 .cse3)) (.cse30 (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse40 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse40))) (not (bvsle (bvmul .cse3 (bvmul .cse40 .cse25)) .cse32)))))) (.cse1 (or (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse39 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse39))) (not (bvsle (bvmul (bvmul .cse2 .cse39) .cse3) .cse4))))) .cse19)) (.cse5 (or (and (forall ((~var_1_6~0 (_ BitVec 16))) (let ((.cse37 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul (bvmul .cse2 .cse37) .cse3) .cse4)) (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse37))))))) (forall ((~var_1_6~0 (_ BitVec 16))) (let ((.cse38 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul (bvmul .cse2 .cse38) .cse3) .cse4)) (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse38))))))) .cse23))) (let ((.cse10 (bvsle .cse0 (bvadd (bvmul (_ bv2 32) .cse35) (bvmul (_ bv2 32) .cse36)))) (.cse8 (let ((.cse33 (= .cse2 .cse3)) (.cse34 (and .cse1 .cse5))) (and (or .cse33 .cse34) (or (not .cse33) .cse34)))) (.cse11 (or (and (or .cse26 (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse31 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul .cse3 (bvmul .cse31 .cse25)) .cse32)) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse31)))))) (or .cse26 .cse30)) .cse23)) (.cse12 (or .cse26 .cse30 .cse19)) (.cse7 (not .cse6)) (.cse9 (not .cse24))) (and (or (not (bvslt ((_ zero_extend 24) |c_ULTIMATE.start_step_~stepLocal_1~0#1|) .cse0)) (and (or (and (or (and .cse1 (forall ((~var_1_6~0 (_ BitVec 16))) (not (bvsle (bvmul (bvmul .cse2 ((_ sign_extend 16) ~var_1_6~0)) .cse3) .cse4))) .cse5) .cse6) (or .cse7 .cse8)) .cse9 .cse10) .cse11 .cse12)) (or .cse7 (and (or .cse9 .cse10 .cse8) .cse11 .cse12)) (or (let ((.cse21 (bvadd c_~var_1_8~0 .cse29))) (let ((.cse13 (forall ((~var_1_6~0 (_ BitVec 16))) (not (bvsle (bvmul (bvmul c_~var_1_8~0 ((_ sign_extend 16) ~var_1_6~0)) .cse3) .cse21)))) (.cse18 (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse28 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse28))) (not (bvsle (bvmul (bvmul c_~var_1_8~0 .cse28) .cse3) .cse21))))))) (and (or (let ((.cse14 (= c_~var_1_8~0 .cse3)) (.cse15 (or (and (forall ((~var_1_6~0 (_ BitVec 16))) (let ((.cse20 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul (bvmul c_~var_1_8~0 .cse20) .cse3) .cse21)) (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse20))))))) (forall ((~var_1_6~0 (_ BitVec 16))) (let ((.cse22 ((_ sign_extend 16) ~var_1_6~0))) (or (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse22))) (not (bvsle (bvmul (bvmul c_~var_1_8~0 .cse22) .cse3) .cse21)))))) .cse23)) (.cse16 (or .cse18 .cse19))) (and (or (and (or .cse13 .cse14) .cse15 .cse16) .cse6) (or .cse7 (let ((.cse17 (and .cse15 .cse16))) (and (or (not .cse14) .cse17) (or .cse13 (= c_~var_1_8~0 .cse2)) (or .cse14 .cse17)))))) .cse9) (or .cse24 (and (or .cse13 (= c_~var_1_8~0 .cse25)) (or .cse18 .cse26 .cse19) (or (and (or .cse26 (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse27 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul (bvmul c_~var_1_8~0 .cse27) .cse3) .cse21)) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse27)))))) (or .cse18 .cse26)) .cse23)))))) (bvsle .cse0 (bvmul (_ bv2 32) c_~var_1_8~0))))))))) is different from true [2024-11-09 07:16:42,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:16:47,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:16:49,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:16:51,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:17:40,772 WARN L286 SmtUtils]: Spent 43.66s on a formula simplification. DAG size of input: 96 DAG size of output: 127 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:17:42,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:17:44,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:17:47,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:17:49,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:17:51,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:17:53,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:17:57,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:17:59,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:18:01,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:18:18,279 WARN L286 SmtUtils]: Spent 7.05s on a formula simplification that was a NOOP. DAG size: 67 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:18:19,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:18:22,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:18:24,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:18:26,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:18:44,241 WARN L286 SmtUtils]: Spent 7.97s on a formula simplification that was a NOOP. DAG size: 67 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:18:46,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:18:48,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:18:50,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]