./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-85.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_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-85.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 4532f74b04e01e58202f923b507d6272ee7cdb7ef4468329dcf73de3b3b2659c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:13:25,124 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:13:25,202 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 01:13:25,208 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:13:25,209 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:13:25,247 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:13:25,249 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:13:25,249 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:13:25,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:13:25,251 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:13:25,252 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:13:25,252 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:13:25,252 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:13:25,253 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:13:25,254 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:13:25,254 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:13:25,255 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:13:25,256 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:13:25,257 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:13:25,257 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:13:25,258 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:13:25,258 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:13:25,259 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:13:25,259 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:13:25,260 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:13:25,260 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:13:25,260 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:13:25,261 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:13:25,261 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:13:25,261 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:13:25,261 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:13:25,262 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:13:25,262 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:13:25,262 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:13:25,263 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:13:25,263 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:13:25,263 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:13:25,263 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:13:25,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:13:25,264 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:13:25,264 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:13:25,267 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:13:25,267 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:13:25,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:13:25,268 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:13:25,268 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:13:25,268 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:13:25,268 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_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4532f74b04e01e58202f923b507d6272ee7cdb7ef4468329dcf73de3b3b2659c [2024-11-09 01:13:25,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:13:25,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:13:25,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:13:25,618 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:13:25,619 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:13:25,620 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-85.i Unable to find full path for "g++" [2024-11-09 01:13:27,598 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:13:27,824 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:13:27,824 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-85.i [2024-11-09 01:13:27,835 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/data/d0415ef76/b2ca12c175ee419e93e315f539f9d182/FLAG5387ccfc7 [2024-11-09 01:13:28,176 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/data/d0415ef76/b2ca12c175ee419e93e315f539f9d182 [2024-11-09 01:13:28,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:13:28,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:13:28,182 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:13:28,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:13:28,188 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:13:28,189 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:13:28" (1/1) ... [2024-11-09 01:13:28,190 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c1f4fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:28, skipping insertion in model container [2024-11-09 01:13:28,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:13:28" (1/1) ... [2024-11-09 01:13:28,214 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:13:28,392 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_c4cadff4-a98b-4984-a4d8-d4892ab5abac/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-85.i[915,928] [2024-11-09 01:13:28,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:13:28,459 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:13:28,472 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_c4cadff4-a98b-4984-a4d8-d4892ab5abac/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-85.i[915,928] [2024-11-09 01:13:28,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:13:28,519 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:13:28,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:28 WrapperNode [2024-11-09 01:13:28,520 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:13:28,522 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:13:28,522 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:13:28,522 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:13:28,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:28" (1/1) ... [2024-11-09 01:13:28,539 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:28" (1/1) ... [2024-11-09 01:13:28,569 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 144 [2024-11-09 01:13:28,571 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:13:28,572 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:13:28,572 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:13:28,573 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:13:28,582 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:28" (1/1) ... [2024-11-09 01:13:28,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:28" (1/1) ... [2024-11-09 01:13:28,585 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:28" (1/1) ... [2024-11-09 01:13:28,585 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:28" (1/1) ... [2024-11-09 01:13:28,591 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:28" (1/1) ... [2024-11-09 01:13:28,595 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:28" (1/1) ... [2024-11-09 01:13:28,597 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:28" (1/1) ... [2024-11-09 01:13:28,599 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:28" (1/1) ... [2024-11-09 01:13:28,601 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:13:28,602 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:13:28,603 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:13:28,603 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:13:28,604 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:28" (1/1) ... [2024-11-09 01:13:28,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:13:28,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:13:28,634 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:13:28,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:13:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:13:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 01:13:28,659 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 01:13:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:13:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:13:28,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:13:28,735 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:13:28,737 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:13:29,055 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-09 01:13:29,056 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:13:29,345 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:13:29,345 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 01:13:29,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:13:29 BoogieIcfgContainer [2024-11-09 01:13:29,347 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:13:29,350 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:13:29,350 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:13:29,355 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:13:29,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:13:28" (1/3) ... [2024-11-09 01:13:29,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5321fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:13:29, skipping insertion in model container [2024-11-09 01:13:29,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:28" (2/3) ... [2024-11-09 01:13:29,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5321fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:13:29, skipping insertion in model container [2024-11-09 01:13:29,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:13:29" (3/3) ... [2024-11-09 01:13:29,359 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-85.i [2024-11-09 01:13:29,376 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:13:29,376 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:13:29,435 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:13:29,441 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;@1d4f7b0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:13:29,441 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:13:29,446 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 01:13:29,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 01:13:29,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:13:29,455 INFO L215 NwaCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1] [2024-11-09 01:13:29,455 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:13:29,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:13:29,460 INFO L85 PathProgramCache]: Analyzing trace with hash -2075171848, now seen corresponding path program 1 times [2024-11-09 01:13:29,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:13:29,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545944406] [2024-11-09 01:13:29,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:13:29,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:13:29,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 01:13:29,804 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 01:13:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 01:13:29,931 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 01:13:29,932 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 01:13:29,933 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 01:13:29,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 01:13:29,940 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 01:13:29,994 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 01:13:29,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 01:13:29 BoogieIcfgContainer [2024-11-09 01:13:29,998 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 01:13:29,998 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 01:13:29,998 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 01:13:29,998 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 01:13:29,999 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:13:29" (3/4) ... [2024-11-09 01:13:30,002 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 01:13:30,003 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 01:13:30,004 INFO L158 Benchmark]: Toolchain (without parser) took 1823.51ms. Allocated memory is still 153.1MB. Free memory was 112.1MB in the beginning and 70.1MB in the end (delta: 42.0MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. [2024-11-09 01:13:30,005 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 59.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:13:30,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.48ms. Allocated memory is still 153.1MB. Free memory was 111.7MB in the beginning and 97.5MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 01:13:30,006 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.15ms. Allocated memory is still 153.1MB. Free memory was 97.5MB in the beginning and 95.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 01:13:30,007 INFO L158 Benchmark]: Boogie Preprocessor took 29.44ms. Allocated memory is still 153.1MB. Free memory was 95.4MB in the beginning and 94.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:13:30,007 INFO L158 Benchmark]: RCFGBuilder took 745.26ms. Allocated memory is still 153.1MB. Free memory was 94.0MB in the beginning and 102.3MB in the end (delta: -8.3MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2024-11-09 01:13:30,008 INFO L158 Benchmark]: TraceAbstraction took 647.76ms. Allocated memory is still 153.1MB. Free memory was 101.6MB in the beginning and 70.8MB in the end (delta: 30.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-09 01:13:30,008 INFO L158 Benchmark]: Witness Printer took 5.22ms. Allocated memory is still 153.1MB. Free memory is still 70.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:13:30,012 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 59.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.48ms. Allocated memory is still 153.1MB. Free memory was 111.7MB in the beginning and 97.5MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.15ms. Allocated memory is still 153.1MB. Free memory was 97.5MB in the beginning and 95.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.44ms. Allocated memory is still 153.1MB. Free memory was 95.4MB in the beginning and 94.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 745.26ms. Allocated memory is still 153.1MB. Free memory was 94.0MB in the beginning and 102.3MB in the end (delta: -8.3MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. * TraceAbstraction took 647.76ms. Allocated memory is still 153.1MB. Free memory was 101.6MB in the beginning and 70.8MB in the end (delta: 30.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 5.22ms. Allocated memory is still 153.1MB. Free memory is still 70.8MB. 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 someBinaryDOUBLEComparisonOperation at line 59, overapproximation of bitwiseOr at line 61. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 16; [L23] unsigned char var_1_2 = 0; [L24] signed long int var_1_3 = -64; [L25] signed long int var_1_4 = -4; [L26] unsigned char var_1_5 = 1; [L27] unsigned char var_1_6 = 0; [L28] signed char var_1_7 = 32; [L29] signed char var_1_8 = -8; [L30] signed char var_1_9 = 10; [L31] double var_1_10 = 1.6; [L32] double var_1_11 = 127.25; [L33] double var_1_12 = 2.5; [L104] isInitial = 1 [L105] FCALL initially() [L106] int k_loop; [L107] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=0, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L107] COND FALSE !(k_loop < 1) VAL [isInitial=1, k_loop=0, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=0, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L107] COND TRUE k_loop < 1 [L108] FCALL updateLastVariables() [L109] CALL updateVariables() [L71] var_1_2 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L73] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L74] var_1_3 = __VERIFIER_nondet_long() [L75] CALL assume_abort_if_not(var_1_3 >= -1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_3 >= -1073741823) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L76] CALL assume_abort_if_not(var_1_3 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_3 <= 1073741823) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L77] var_1_4 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_4 >= -1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_4 >= -1073741823) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L79] CALL assume_abort_if_not(var_1_4 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_4 <= 1073741823) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L80] var_1_5 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L82] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L83] var_1_6 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_7=32, var_1_8=-8, var_1_9=10] [L85] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L86] var_1_8 = __VERIFIER_nondet_char() [L87] CALL assume_abort_if_not(var_1_8 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-2, var_1_9=10] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_8 >= -127) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-2, var_1_9=10] [L88] CALL assume_abort_if_not(var_1_8 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-2, var_1_9=10] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_8 <= 126) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-2, var_1_9=10] [L89] var_1_9 = __VERIFIER_nondet_char() [L90] CALL assume_abort_if_not(var_1_9 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-2, var_1_9=-1] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_9 >= -127) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-2, var_1_9=-1] [L91] CALL assume_abort_if_not(var_1_9 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-2, var_1_9=-1] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_9 <= 126) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-2, var_1_9=-1] [L92] var_1_11 = __VERIFIER_nondet_double() [L93] CALL assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-2, var_1_9=-1] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=8/5, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-2, var_1_9=-1] [L94] var_1_12 = __VERIFIER_nondet_double() [L95] CALL assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-2, var_1_9=-1] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=8/5, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-2, var_1_9=-1] [L109] RET updateVariables() [L110] CALL step() [L37] signed long int stepLocal_0 = var_1_3; [L38] COND FALSE !(\read(var_1_6)) [L43] COND TRUE \read(var_1_2) [L44] var_1_1 = (((((var_1_7 + var_1_7)) < (-16)) ? ((var_1_7 + var_1_7)) : (-16))) [L56] unsigned char stepLocal_2 = var_1_5; [L57] signed char stepLocal_1 = var_1_9; [L58] COND TRUE ! var_1_6 [L59] var_1_10 = ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))) [L110] RET step() [L111] CALL, EXPR property() [L100] EXPR ((var_1_2 ? (var_1_1 == ((signed long int) (((((var_1_7 + var_1_7)) < (-16)) ? ((var_1_7 + var_1_7)) : (-16))))) : (var_1_5 ? (var_1_1 == ((signed long int) (var_1_7 + -4))) : (var_1_6 ? (var_1_1 == ((signed long int) var_1_7)) : (var_1_1 == ((signed long int) var_1_7))))) && (var_1_6 ? ((var_1_3 <= var_1_4) ? (var_1_7 == ((signed char) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9))))) : 1) : 1)) && ((! var_1_6) ? (var_1_10 == ((double) ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))))) : (((var_1_7 | var_1_1) <= var_1_9) ? ((var_1_5 && var_1_6) ? (var_1_10 == ((double) var_1_12)) : (var_1_10 == ((double) 5.5))) : 1)) [L100] EXPR (! var_1_6) ? (var_1_10 == ((double) ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))))) : (((var_1_7 | var_1_1) <= var_1_9) ? ((var_1_5 && var_1_6) ? (var_1_10 == ((double) var_1_12)) : (var_1_10 == ((double) 5.5))) : 1) [L100] EXPR ((var_1_2 ? (var_1_1 == ((signed long int) (((((var_1_7 + var_1_7)) < (-16)) ? ((var_1_7 + var_1_7)) : (-16))))) : (var_1_5 ? (var_1_1 == ((signed long int) (var_1_7 + -4))) : (var_1_6 ? (var_1_1 == ((signed long int) var_1_7)) : (var_1_1 == ((signed long int) var_1_7))))) && (var_1_6 ? ((var_1_3 <= var_1_4) ? (var_1_7 == ((signed char) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9))))) : 1) : 1)) && ((! var_1_6) ? (var_1_10 == ((double) ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))))) : (((var_1_7 | var_1_1) <= var_1_9) ? ((var_1_5 && var_1_6) ? (var_1_10 == ((double) var_1_12)) : (var_1_10 == ((double) 5.5))) : 1)) [L100-L101] return ((var_1_2 ? (var_1_1 == ((signed long int) (((((var_1_7 + var_1_7)) < (-16)) ? ((var_1_7 + var_1_7)) : (-16))))) : (var_1_5 ? (var_1_1 == ((signed long int) (var_1_7 + -4))) : (var_1_6 ? (var_1_1 == ((signed long int) var_1_7)) : (var_1_1 == ((signed long int) var_1_7))))) && (var_1_6 ? ((var_1_3 <= var_1_4) ? (var_1_7 == ((signed char) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9))))) : 1) : 1)) && ((! var_1_6) ? (var_1_10 == ((double) ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))))) : (((var_1_7 | var_1_1) <= var_1_9) ? ((var_1_5 && var_1_6) ? (var_1_10 == ((double) var_1_12)) : (var_1_10 == ((double) 5.5))) : 1)) ; [L111] RET, EXPR property() [L111] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=8/5, var_1_11=8/5, var_1_12=8/5, var_1_1=-16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-2, var_1_9=-1] [L19] reach_error() VAL [isInitial=1, var_1_10=8/5, var_1_11=8/5, var_1_12=8/5, var_1_1=-16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741822, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-2, var_1_9=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 16, 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=36occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 01:13:30,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-85.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 4532f74b04e01e58202f923b507d6272ee7cdb7ef4468329dcf73de3b3b2659c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:13:32,546 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:13:32,620 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 01:13:32,625 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:13:32,626 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:13:32,680 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:13:32,681 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:13:32,681 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:13:32,682 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:13:32,687 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:13:32,688 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:13:32,688 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:13:32,689 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:13:32,689 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:13:32,689 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:13:32,690 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:13:32,691 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:13:32,691 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:13:32,698 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:13:32,698 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:13:32,698 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:13:32,699 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:13:32,699 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:13:32,700 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:13:32,700 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 01:13:32,700 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 01:13:32,701 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:13:32,701 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 01:13:32,701 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:13:32,702 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:13:32,702 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:13:32,703 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:13:32,703 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 01:13:32,704 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:13:32,704 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:13:32,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:13:32,705 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:13:32,706 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:13:32,706 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:13:32,706 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 01:13:32,707 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 01:13:32,707 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:13:32,708 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:13:32,708 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_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4532f74b04e01e58202f923b507d6272ee7cdb7ef4468329dcf73de3b3b2659c [2024-11-09 01:13:33,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:13:33,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:13:33,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:13:33,183 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:13:33,183 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:13:33,185 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-85.i Unable to find full path for "g++" [2024-11-09 01:13:35,453 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:13:35,693 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:13:35,693 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-85.i [2024-11-09 01:13:35,701 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/data/fe14b1075/a4d2d53e823448a1896edd9bafb48e0b/FLAGc1a515bc8 [2024-11-09 01:13:35,715 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/data/fe14b1075/a4d2d53e823448a1896edd9bafb48e0b [2024-11-09 01:13:35,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:13:35,719 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:13:35,720 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:13:35,720 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:13:35,726 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:13:35,727 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:13:35" (1/1) ... [2024-11-09 01:13:35,728 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449e2731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:35, skipping insertion in model container [2024-11-09 01:13:35,728 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:13:35" (1/1) ... [2024-11-09 01:13:35,755 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:13:35,989 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_c4cadff4-a98b-4984-a4d8-d4892ab5abac/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-85.i[915,928] [2024-11-09 01:13:36,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:13:36,073 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:13:36,090 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_c4cadff4-a98b-4984-a4d8-d4892ab5abac/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-85.i[915,928] [2024-11-09 01:13:36,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:13:36,175 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:13:36,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:36 WrapperNode [2024-11-09 01:13:36,175 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:13:36,177 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:13:36,177 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:13:36,178 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:13:36,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:36" (1/1) ... [2024-11-09 01:13:36,201 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:36" (1/1) ... [2024-11-09 01:13:36,236 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 112 [2024-11-09 01:13:36,241 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:13:36,242 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:13:36,242 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:13:36,242 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:13:36,257 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:36" (1/1) ... [2024-11-09 01:13:36,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:36" (1/1) ... [2024-11-09 01:13:36,266 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:36" (1/1) ... [2024-11-09 01:13:36,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:36" (1/1) ... [2024-11-09 01:13:36,283 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:36" (1/1) ... [2024-11-09 01:13:36,286 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:36" (1/1) ... [2024-11-09 01:13:36,292 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:36" (1/1) ... [2024-11-09 01:13:36,298 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:36" (1/1) ... [2024-11-09 01:13:36,301 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:13:36,304 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:13:36,304 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:13:36,305 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:13:36,306 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:36" (1/1) ... [2024-11-09 01:13:36,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:13:36,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:13:36,345 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:13:36,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:13:36,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:13:36,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 01:13:36,389 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 01:13:36,389 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 01:13:36,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:13:36,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:13:36,479 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:13:36,482 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:13:36,877 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-09 01:13:36,878 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:13:36,897 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:13:36,901 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 01:13:36,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:13:36 BoogieIcfgContainer [2024-11-09 01:13:36,902 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:13:36,904 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:13:36,905 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:13:36,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:13:36,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:13:35" (1/3) ... [2024-11-09 01:13:36,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53618efc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:13:36, skipping insertion in model container [2024-11-09 01:13:36,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:13:36" (2/3) ... [2024-11-09 01:13:36,913 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53618efc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:13:36, skipping insertion in model container [2024-11-09 01:13:36,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:13:36" (3/3) ... [2024-11-09 01:13:36,915 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-85.i [2024-11-09 01:13:36,934 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:13:36,935 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:13:37,021 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:13:37,027 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;@23402b23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:13:37,028 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:13:37,032 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 36 states have internal predecessors, (48), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 01:13:37,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 01:13:37,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:13:37,045 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:13:37,046 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:13:37,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:13:37,051 INFO L85 PathProgramCache]: Analyzing trace with hash 944491328, now seen corresponding path program 1 times [2024-11-09 01:13:37,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:13:37,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1112421795] [2024-11-09 01:13:37,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:13:37,065 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 01:13:37,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:13:37,069 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 01:13:37,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 01:13:37,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:13:37,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 01:13:37,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:13:37,331 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2024-11-09 01:13:37,331 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:13:37,332 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:13:37,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1112421795] [2024-11-09 01:13:37,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1112421795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:13:37,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:13:37,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:13:37,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627755487] [2024-11-09 01:13:37,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:13:37,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 01:13:37,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:13:37,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 01:13:37,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:13:37,369 INFO L87 Difference]: Start difference. First operand has 54 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 36 states have internal predecessors, (48), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-09 01:13:37,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:13:37,405 INFO L93 Difference]: Finished difference Result 105 states and 173 transitions. [2024-11-09 01:13:37,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 01:13:37,408 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 103 [2024-11-09 01:13:37,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:13:37,417 INFO L225 Difference]: With dead ends: 105 [2024-11-09 01:13:37,418 INFO L226 Difference]: Without dead ends: 50 [2024-11-09 01:13:37,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 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 01:13:37,425 INFO L432 NwaCegarLoop]: 78 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, 78 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 01:13:37,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:13:37,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-09 01:13:37,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-09 01:13:37,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 01:13:37,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 73 transitions. [2024-11-09 01:13:37,484 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 73 transitions. Word has length 103 [2024-11-09 01:13:37,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:13:37,485 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 73 transitions. [2024-11-09 01:13:37,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-09 01:13:37,487 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 73 transitions. [2024-11-09 01:13:37,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 01:13:37,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:13:37,492 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:13:37,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 01:13:37,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 01:13:37,694 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:13:37,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:13:37,695 INFO L85 PathProgramCache]: Analyzing trace with hash 717220092, now seen corresponding path program 1 times [2024-11-09 01:13:37,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:13:37,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1450085792] [2024-11-09 01:13:37,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:13:37,697 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 01:13:37,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:13:37,701 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 01:13:37,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 01:13:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:13:37,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 01:13:37,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:17:38,576 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-09 01:17:38,576 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:17:38,576 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:17:38,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1450085792] [2024-11-09 01:17:38,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1450085792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:17:38,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:17:38,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 01:17:38,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643365208] [2024-11-09 01:17:38,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:17:38,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 01:17:38,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:17:38,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 01:17:38,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-09 01:17:38,582 INFO L87 Difference]: Start difference. First operand 50 states and 73 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 13 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-09 01:17:41,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:17:41,370 INFO L93 Difference]: Finished difference Result 148 states and 205 transitions. [2024-11-09 01:17:41,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 01:17:41,372 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 13 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 103 [2024-11-09 01:17:41,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:17:41,375 INFO L225 Difference]: With dead ends: 148 [2024-11-09 01:17:41,375 INFO L226 Difference]: Without dead ends: 101 [2024-11-09 01:17:41,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2024-11-09 01:17:41,378 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 177 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:17:41,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 312 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 01:17:41,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-09 01:17:41,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 90. [2024-11-09 01:17:41,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 61 states have (on average 1.1967213114754098) internal successors, (73), 62 states have internal predecessors, (73), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:17:41,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 121 transitions. [2024-11-09 01:17:41,401 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 121 transitions. Word has length 103 [2024-11-09 01:17:41,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:17:41,405 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 121 transitions. [2024-11-09 01:17:41,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 13 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-09 01:17:41,406 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 121 transitions. [2024-11-09 01:17:41,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 01:17:41,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:17:41,408 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:17:41,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 01:17:41,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 01:17:41,609 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:17:41,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:17:41,610 INFO L85 PathProgramCache]: Analyzing trace with hash 452238509, now seen corresponding path program 1 times [2024-11-09 01:17:41,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:17:41,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041260504] [2024-11-09 01:17:41,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:17:41,611 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 01:17:41,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:17:41,613 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 01:17:41,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 01:17:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:17:41,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 01:17:41,762 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:18:11,059 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-09 01:18:11,059 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:18:11,060 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:18:11,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041260504] [2024-11-09 01:18:11,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041260504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:18:11,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:18:11,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-09 01:18:11,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728165741] [2024-11-09 01:18:11,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:18:11,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 01:18:11,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:18:11,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 01:18:11,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-09 01:18:11,065 INFO L87 Difference]: Start difference. First operand 90 states and 121 transitions. Second operand has 15 states, 15 states have (on average 2.2) internal successors, (33), 14 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-09 01:18:14,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:18:14,171 INFO L93 Difference]: Finished difference Result 119 states and 149 transitions. [2024-11-09 01:18:14,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 01:18:14,173 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.2) internal successors, (33), 14 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 104 [2024-11-09 01:18:14,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:18:14,175 INFO L225 Difference]: With dead ends: 119 [2024-11-09 01:18:14,175 INFO L226 Difference]: Without dead ends: 117 [2024-11-09 01:18:14,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2024-11-09 01:18:14,177 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 210 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:18:14,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 342 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 01:18:14,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-09 01:18:14,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 90. [2024-11-09 01:18:14,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 61 states have (on average 1.1967213114754098) internal successors, (73), 62 states have internal predecessors, (73), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:18:14,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 121 transitions. [2024-11-09 01:18:14,198 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 121 transitions. Word has length 104 [2024-11-09 01:18:14,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:18:14,199 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 121 transitions. [2024-11-09 01:18:14,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.2) internal successors, (33), 14 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-09 01:18:14,200 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 121 transitions. [2024-11-09 01:18:14,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 01:18:14,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:18:14,202 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:18:14,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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)] Ended with exit code 0 [2024-11-09 01:18:14,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 01:18:14,408 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:18:14,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:18:14,409 INFO L85 PathProgramCache]: Analyzing trace with hash -915969911, now seen corresponding path program 1 times [2024-11-09 01:18:14,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:18:14,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779588466] [2024-11-09 01:18:14,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:18:14,411 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 01:18:14,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:18:14,415 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 01:18:14,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 01:18:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:18:14,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 01:18:14,552 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:18:14,574 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-09 01:18:14,575 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:18:14,576 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:18:14,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779588466] [2024-11-09 01:18:14,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1779588466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:18:14,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:18:14,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:18:14,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145017354] [2024-11-09 01:18:14,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:18:14,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:18:14,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:18:14,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:18:14,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:18:14,583 INFO L87 Difference]: Start difference. First operand 90 states and 121 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-09 01:18:14,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:18:14,675 INFO L93 Difference]: Finished difference Result 184 states and 244 transitions. [2024-11-09 01:18:14,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:18:14,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 104 [2024-11-09 01:18:14,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:18:14,681 INFO L225 Difference]: With dead ends: 184 [2024-11-09 01:18:14,681 INFO L226 Difference]: Without dead ends: 97 [2024-11-09 01:18:14,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:18:14,683 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 41 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:18:14,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 161 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:18:14,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-09 01:18:14,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 72. [2024-11-09 01:18:14,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 51 states have (on average 1.1764705882352942) internal successors, (60), 51 states have internal predecessors, (60), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 01:18:14,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 92 transitions. [2024-11-09 01:18:14,715 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 92 transitions. Word has length 104 [2024-11-09 01:18:14,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:18:14,719 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 92 transitions. [2024-11-09 01:18:14,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-09 01:18:14,719 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 92 transitions. [2024-11-09 01:18:14,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-09 01:18:14,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:18:14,722 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:18:14,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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)] Ended with exit code 0 [2024-11-09 01:18:14,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 01:18:14,922 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:18:14,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:18:14,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1549664797, now seen corresponding path program 1 times [2024-11-09 01:18:14,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:18:14,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348899851] [2024-11-09 01:18:14,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:18:14,924 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 01:18:14,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:18:14,925 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 01:18:14,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 01:18:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:18:15,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 01:18:15,030 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:18:47,235 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-09 01:18:47,235 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:18:47,235 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:18:47,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348899851] [2024-11-09 01:18:47,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348899851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:18:47,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:18:47,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-09 01:18:47,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368420639] [2024-11-09 01:18:47,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:18:47,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 01:18:47,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:18:47,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 01:18:47,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-09 01:18:47,238 INFO L87 Difference]: Start difference. First operand 72 states and 92 transitions. Second operand has 15 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 14 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-09 01:18:49,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:18:49,576 INFO L93 Difference]: Finished difference Result 116 states and 140 transitions. [2024-11-09 01:18:49,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 01:18:49,578 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 14 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 105 [2024-11-09 01:18:49,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:18:49,579 INFO L225 Difference]: With dead ends: 116 [2024-11-09 01:18:49,579 INFO L226 Difference]: Without dead ends: 114 [2024-11-09 01:18:49,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2024-11-09 01:18:49,581 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 156 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:18:49,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 446 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 01:18:49,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-09 01:18:49,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 70. [2024-11-09 01:18:49,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 49 states have (on average 1.183673469387755) internal successors, (58), 49 states have internal predecessors, (58), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 01:18:49,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 90 transitions. [2024-11-09 01:18:49,595 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 90 transitions. Word has length 105 [2024-11-09 01:18:49,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:18:49,596 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 90 transitions. [2024-11-09 01:18:49,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 14 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-09 01:18:49,597 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 90 transitions. [2024-11-09 01:18:49,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-09 01:18:49,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:18:49,599 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:18:49,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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)] Forceful destruction successful, exit code 0 [2024-11-09 01:18:49,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 01:18:49,800 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:18:49,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:18:49,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1725052659, now seen corresponding path program 1 times [2024-11-09 01:18:49,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:18:49,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359691035] [2024-11-09 01:18:49,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:18:49,801 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 01:18:49,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:18:49,803 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 01:18:49,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 (7)] Waiting until timeout for monitored process [2024-11-09 01:18:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:18:49,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 01:18:49,910 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:19:33,736 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 174 proven. 120 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-09 01:19:33,737 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:22:19,904 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-09 01:22:19,904 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:22:19,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359691035] [2024-11-09 01:22:19,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359691035] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:22:19,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:22:19,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [22] total 31 [2024-11-09 01:22:19,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995378649] [2024-11-09 01:22:19,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:22:19,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 01:22:19,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:22:19,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 01:22:19,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=762, Unknown=0, NotChecked=0, Total=930 [2024-11-09 01:22:19,908 INFO L87 Difference]: Start difference. First operand 70 states and 90 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-09 01:22:30,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:30,660 INFO L93 Difference]: Finished difference Result 115 states and 142 transitions. [2024-11-09 01:22:30,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 01:22:30,661 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 105 [2024-11-09 01:22:30,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:30,663 INFO L225 Difference]: With dead ends: 115 [2024-11-09 01:22:30,663 INFO L226 Difference]: Without dead ends: 113 [2024-11-09 01:22:30,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=211, Invalid=979, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 01:22:30,665 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 131 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:30,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 432 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-09 01:22:30,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-09 01:22:30,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 96. [2024-11-09 01:22:30,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 72 states have (on average 1.2083333333333333) internal successors, (87), 73 states have internal predecessors, (87), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 01:22:30,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 123 transitions. [2024-11-09 01:22:30,687 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 123 transitions. Word has length 105 [2024-11-09 01:22:30,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:30,687 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 123 transitions. [2024-11-09 01:22:30,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-09 01:22:30,688 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 123 transitions. [2024-11-09 01:22:30,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-09 01:22:30,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:30,690 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:22:30,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 (7)] Ended with exit code 0 [2024-11-09 01:22:30,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 01:22:30,891 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:22:30,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:30,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1044994289, now seen corresponding path program 1 times [2024-11-09 01:22:30,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:22:30,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019201999] [2024-11-09 01:22:30,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:30,893 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 01:22:30,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:22:30,896 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 01:22:30,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-09 01:22:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:31,007 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 01:22:31,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:24:30,792 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-09 01:24:30,793 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:24:30,793 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:24:30,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019201999] [2024-11-09 01:24:30,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2019201999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:24:30,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:24:30,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 01:24:30,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621943025] [2024-11-09 01:24:30,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:24:30,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 01:24:30,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:24:30,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 01:24:30,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:24:30,795 INFO L87 Difference]: Start difference. First operand 96 states and 123 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-09 01:24:31,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:24:31,401 INFO L93 Difference]: Finished difference Result 154 states and 194 transitions. [2024-11-09 01:24:31,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 01:24:31,401 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 105 [2024-11-09 01:24:31,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:24:31,403 INFO L225 Difference]: With dead ends: 154 [2024-11-09 01:24:31,403 INFO L226 Difference]: Without dead ends: 152 [2024-11-09 01:24:31,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-09 01:24:31,405 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 120 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:24:31,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 501 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:24:31,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-09 01:24:31,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 112. [2024-11-09 01:24:31,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 81 states have (on average 1.1975308641975309) internal successors, (97), 82 states have internal predecessors, (97), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:24:31,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 145 transitions. [2024-11-09 01:24:31,428 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 145 transitions. Word has length 105 [2024-11-09 01:24:31,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:24:31,429 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 145 transitions. [2024-11-09 01:24:31,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-09 01:24:31,429 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 145 transitions. [2024-11-09 01:24:31,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-09 01:24:31,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:24:31,431 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:24:31,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-09 01:24:31,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 01:24:31,632 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:24:31,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:24:31,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1701464590, now seen corresponding path program 1 times [2024-11-09 01:24:31,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:24:31,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1032832776] [2024-11-09 01:24:31,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:24:31,633 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 01:24:31,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:24:31,634 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/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 01:24:31,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cadff4-a98b-4984-a4d8-d4892ab5abac/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-09 01:24:31,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:24:31,737 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-09 01:24:31,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:38,306 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 265 proven. 117 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-09 01:25:38,306 INFO L311 TraceCheckSpWp]: Computing backward predicates...