./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire --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 d381484f1da05d6ba1f8b104325630e07c954c02d7e654b9eb3ca4a77db060bc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:18:30,680 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:18:30,835 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:18:30,851 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:18:30,852 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:18:30,906 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:18:30,907 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:18:30,907 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:18:30,909 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:18:30,915 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:18:30,916 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:18:30,918 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:18:30,918 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:18:30,921 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:18:30,921 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:18:30,922 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:18:30,922 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:18:30,923 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:18:30,923 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:18:30,924 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:18:30,924 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:18:30,925 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:18:30,926 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:18:30,927 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:18:30,927 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:18:30,928 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:18:30,928 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:18:30,929 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:18:30,929 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:18:30,930 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:18:30,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:18:30,932 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:18:30,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:18:30,932 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:18:30,932 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:18:30,933 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:18:30,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:18:30,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:30,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:18:30,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:18:30,934 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:18:30,935 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:18:30,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:18:30,935 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:18:30,936 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:18:30,936 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:18:30,936 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:18:30,937 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_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d381484f1da05d6ba1f8b104325630e07c954c02d7e654b9eb3ca4a77db060bc [2023-11-23 21:18:31,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:18:31,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:18:31,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:18:31,381 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:18:31,381 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:18:31,383 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-2.i [2023-11-23 21:18:34,614 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:18:34,911 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:18:34,912 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-2.i [2023-11-23 21:18:34,924 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/data/59f46c542/0736d1f01f9d499aaa4757b7dab8dcf2/FLAG79dd9c750 [2023-11-23 21:18:34,939 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/data/59f46c542/0736d1f01f9d499aaa4757b7dab8dcf2 [2023-11-23 21:18:34,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:18:34,944 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:18:34,948 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:34,948 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:18:34,954 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:18:34,955 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:34" (1/1) ... [2023-11-23 21:18:34,956 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19b2d6c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:34, skipping insertion in model container [2023-11-23 21:18:34,956 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:34" (1/1) ... [2023-11-23 21:18:35,004 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:18:35,192 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-2.i[912,925] [2023-11-23 21:18:35,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:18:35,288 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:18:35,302 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-2.i[912,925] [2023-11-23 21:18:35,349 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:18:35,375 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:18:35,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35 WrapperNode [2023-11-23 21:18:35,376 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:35,377 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:18:35,377 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:18:35,378 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:18:35,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,398 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,439 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 143 [2023-11-23 21:18:35,440 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:18:35,441 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:18:35,441 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:18:35,441 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:18:35,451 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,464 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,465 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,474 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,491 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,494 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,495 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,499 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:18:35,510 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:18:35,510 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:18:35,510 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:18:35,511 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:35,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:18:35,544 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:18:35,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:18:35,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:18:35,574 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:18:35,574 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:18:35,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:18:35,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:18:35,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:18:35,655 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:18:35,661 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:18:36,034 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:18:36,302 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:18:36,302 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:18:36,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:36 BoogieIcfgContainer [2023-11-23 21:18:36,304 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:18:36,307 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:18:36,307 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:18:36,311 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:18:36,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:18:34" (1/3) ... [2023-11-23 21:18:36,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c884e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:18:36, skipping insertion in model container [2023-11-23 21:18:36,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (2/3) ... [2023-11-23 21:18:36,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c884e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:18:36, skipping insertion in model container [2023-11-23 21:18:36,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:36" (3/3) ... [2023-11-23 21:18:36,315 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-2.i [2023-11-23 21:18:36,339 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:18:36,339 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:18:36,394 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:18:36,403 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@247c2cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:18:36,405 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:18:36,410 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-23 21:18:36,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-23 21:18:36,425 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:36,427 INFO L195 NwaCegarLoop]: trace histogram [21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:18:36,428 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:18:36,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:36,436 INFO L85 PathProgramCache]: Analyzing trace with hash -418711651, now seen corresponding path program 1 times [2023-11-23 21:18:36,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:36,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544446791] [2023-11-23 21:18:36,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:36,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:36,686 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:18:36,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1138119858] [2023-11-23 21:18:36,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:36,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:18:36,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:18:36,692 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:18:36,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:18:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:18:36,957 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:18:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:18:37,129 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:18:37,132 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:18:37,133 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:18:37,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:18:37,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:18:37,353 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:18:37,357 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:18:37,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:18:37 BoogieIcfgContainer [2023-11-23 21:18:37,437 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:18:37,438 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:18:37,438 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:18:37,439 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:18:37,439 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:36" (3/4) ... [2023-11-23 21:18:37,442 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:18:37,451 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:18:37,453 INFO L158 Benchmark]: Toolchain (without parser) took 2508.94ms. Allocated memory was 142.6MB in the beginning and 180.4MB in the end (delta: 37.7MB). Free memory was 102.2MB in the beginning and 108.9MB in the end (delta: -6.7MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2023-11-23 21:18:37,454 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:18:37,454 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.69ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 88.5MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:18:37,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.73ms. Allocated memory is still 142.6MB. Free memory was 88.5MB in the beginning and 86.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:18:37,456 INFO L158 Benchmark]: Boogie Preprocessor took 68.14ms. Allocated memory is still 142.6MB. Free memory was 86.1MB in the beginning and 84.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:18:37,457 INFO L158 Benchmark]: RCFGBuilder took 794.58ms. Allocated memory was 142.6MB in the beginning and 180.4MB in the end (delta: 37.7MB). Free memory was 84.0MB in the beginning and 146.7MB in the end (delta: -62.7MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2023-11-23 21:18:37,457 INFO L158 Benchmark]: TraceAbstraction took 1130.39ms. Allocated memory is still 180.4MB. Free memory was 145.6MB in the beginning and 108.9MB in the end (delta: 36.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-23 21:18:37,458 INFO L158 Benchmark]: Witness Printer took 13.59ms. Allocated memory is still 180.4MB. Free memory is still 108.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:18:37,461 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 428.69ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 88.5MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.73ms. Allocated memory is still 142.6MB. Free memory was 88.5MB in the beginning and 86.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.14ms. Allocated memory is still 142.6MB. Free memory was 86.1MB in the beginning and 84.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 794.58ms. Allocated memory was 142.6MB in the beginning and 180.4MB in the end (delta: 37.7MB). Free memory was 84.0MB in the beginning and 146.7MB in the end (delta: -62.7MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1130.39ms. Allocated memory is still 180.4MB. Free memory was 145.6MB in the beginning and 108.9MB in the end (delta: 36.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 13.59ms. Allocated memory is still 180.4MB. Free memory is still 108.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 69, overapproximation of someBinaryArithmeticDOUBLEoperation at line 86, overapproximation of someBinaryDOUBLEComparisonOperation at line 56, overapproximation of someBinaryArithmeticFLOAToperation at line 48. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 3.95; [L23] unsigned char var_1_2 = 50; [L24] unsigned char var_1_3 = 10; [L25] float var_1_4 = 9999999.8; [L26] float var_1_5 = 8.6; [L27] unsigned long int var_1_6 = 10000; [L28] unsigned char var_1_7 = 1; [L29] double var_1_8 = 64.5; [L30] unsigned char var_1_9 = 0; [L31] float var_1_10 = 255.25; [L32] float var_1_11 = 7.5; [L33] float var_1_12 = 0.0; [L34] float var_1_13 = 64.8; [L35] double var_1_14 = 127.75; [L36] signed char var_1_15 = 8; [L37] signed char var_1_16 = 32; [L38] unsigned char var_1_17 = 0; [L39] unsigned char var_1_18 = 0; [L40] double var_1_19 = 2.25; [L41] unsigned char var_1_20 = 0; [L42] unsigned short int var_1_21 = 256; [L134] isInitial = 1 [L135] FCALL initially() [L136] COND TRUE 1 [L137] FCALL updateLastVariables() [L138] CALL updateVariables() [L92] var_1_2 = __VERIFIER_nondet_uchar() [L93] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_3=10, var_1_4=49999999/5, var_1_5=43/5, var_1_6=10000, var_1_7=1, var_1_8=129/2, var_1_9=0] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_3=10, var_1_4=49999999/5, var_1_5=43/5, var_1_6=10000, var_1_7=1, var_1_8=129/2, var_1_9=0] [L94] CALL assume_abort_if_not(var_1_2 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_3=10, var_1_4=49999999/5, var_1_5=43/5, var_1_6=10000, var_1_7=1, var_1_8=129/2, var_1_9=0] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_2 <= 255) VAL [isInitial=1, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_3=10, var_1_4=49999999/5, var_1_5=43/5, var_1_6=10000, var_1_7=1, var_1_8=129/2, var_1_9=0] [L95] var_1_3 = __VERIFIER_nondet_uchar() [L96] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_4=49999999/5, var_1_5=43/5, var_1_6=10000, var_1_7=1, var_1_8=129/2, var_1_9=0] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_4=49999999/5, var_1_5=43/5, var_1_6=10000, var_1_7=1, var_1_8=129/2, var_1_9=0] [L97] CALL assume_abort_if_not(var_1_3 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_4=49999999/5, var_1_5=43/5, var_1_6=10000, var_1_7=1, var_1_8=129/2, var_1_9=0] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_3 <= 255) VAL [isInitial=1, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_4=49999999/5, var_1_5=43/5, var_1_6=10000, var_1_7=1, var_1_8=129/2, var_1_9=0] [L98] var_1_4 = __VERIFIER_nondet_float() [L99] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=43/5, var_1_6=10000, var_1_7=1, var_1_8=129/2, var_1_9=0] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=43/5, var_1_6=10000, var_1_7=1, var_1_8=129/2, var_1_9=0] [L100] var_1_5 = __VERIFIER_nondet_float() [L101] CALL assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_8=129/2, var_1_9=0] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_8=129/2, var_1_9=0] [L102] var_1_7 = __VERIFIER_nondet_uchar() [L103] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_8=129/2, var_1_9=0] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_8=129/2, var_1_9=0] [L104] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_8=129/2, var_1_9=0] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_8=129/2, var_1_9=0] [L105] var_1_8 = __VERIFIER_nondet_double() [L106] CALL assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L107] var_1_9 = __VERIFIER_nondet_uchar() [L108] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1] [L109] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L110] var_1_11 = __VERIFIER_nondet_float() [L111] CALL assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1021/4, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1021/4, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L112] CALL assume_abort_if_not(var_1_11 != 0.0F) VAL [\old(cond)=1, isInitial=1, var_1_10=1021/4, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_11 != 0.0F) VAL [isInitial=1, var_1_10=1021/4, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L113] var_1_12 = __VERIFIER_nondet_float() [L114] CALL assume_abort_if_not((var_1_12 >= 4611686.018427382800e+12F && 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=1021/4, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not((var_1_12 >= 4611686.018427382800e+12F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1021/4, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L115] var_1_13 = __VERIFIER_nondet_float() [L116] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1021/4, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1021/4, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L117] var_1_15 = __VERIFIER_nondet_char() [L118] CALL assume_abort_if_not(var_1_15 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_10=1021/4, var_1_14=511/4, var_1_15=0, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L118] RET assume_abort_if_not(var_1_15 >= -1) VAL [isInitial=1, var_1_10=1021/4, var_1_14=511/4, var_1_15=0, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L119] CALL assume_abort_if_not(var_1_15 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=1021/4, var_1_14=511/4, var_1_15=0, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L119] RET assume_abort_if_not(var_1_15 <= 127) VAL [isInitial=1, var_1_10=1021/4, var_1_14=511/4, var_1_15=0, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L120] var_1_16 = __VERIFIER_nondet_char() [L121] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1021/4, var_1_14=511/4, var_1_15=0, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L121] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, var_1_10=1021/4, var_1_14=511/4, var_1_15=0, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L122] CALL assume_abort_if_not(var_1_16 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=1021/4, var_1_14=511/4, var_1_15=0, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L122] RET assume_abort_if_not(var_1_16 <= 127) VAL [isInitial=1, var_1_10=1021/4, var_1_14=511/4, var_1_15=0, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L123] var_1_18 = __VERIFIER_nondet_uchar() [L124] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1021/4, var_1_14=511/4, var_1_15=0, var_1_16=1, var_1_17=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L124] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, var_1_10=1021/4, var_1_14=511/4, var_1_15=0, var_1_16=1, var_1_17=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L125] CALL assume_abort_if_not(var_1_18 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1021/4, var_1_14=511/4, var_1_15=0, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L125] RET assume_abort_if_not(var_1_18 <= 0) VAL [isInitial=1, var_1_10=1021/4, var_1_14=511/4, var_1_15=0, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_6=10000, var_1_7=1, var_1_9=0] [L138] RET updateVariables() [L139] CALL step() [L46] COND TRUE var_1_2 <= var_1_3 [L47] COND FALSE !(var_1_3 > var_1_2) [L50] var_1_1 = var_1_5 [L55] COND TRUE \read(var_1_7) [L56] COND TRUE ((((var_1_1) > (((((var_1_5) > (199.78)) ? (var_1_5) : (199.78))))) ? (var_1_1) : (((((var_1_5) > (199.78)) ? (var_1_5) : (199.78)))))) != (var_1_4 - var_1_8) [L57] COND FALSE !((var_1_2 != var_1_3) || var_1_9) [L60] var_1_6 = 5u [L68] COND FALSE !((var_1_5 / var_1_11) >= (var_1_8 - var_1_4)) [L71] var_1_10 = 4.2f [L73] COND FALSE !((var_1_15 - ((((0) < (var_1_16)) ? (0) : (var_1_16)))) > var_1_6) [L76] COND FALSE !(var_1_6 <= (var_1_16 * var_1_2)) [L83] var_1_17 = var_1_18 [L85] COND FALSE !(var_1_14 < var_1_11) [L88] var_1_20 = var_1_16 [L89] var_1_21 = var_1_16 [L139] RET step() [L140] CALL, EXPR property() [L130-L131] return ((((((((var_1_2 <= var_1_3) ? ((var_1_3 > var_1_2) ? (var_1_1 == ((float) (var_1_4 - var_1_5))) : (var_1_1 == ((float) var_1_5))) : (var_1_1 == ((float) var_1_4))) && (var_1_7 ? ((((((var_1_1) > (((((var_1_5) > (199.78)) ? (var_1_5) : (199.78))))) ? (var_1_1) : (((((var_1_5) > (199.78)) ? (var_1_5) : (199.78)))))) != (var_1_4 - var_1_8)) ? (((var_1_2 != var_1_3) || var_1_9) ? (var_1_6 == ((unsigned long int) var_1_2)) : (var_1_6 == ((unsigned long int) 5u))) : (var_1_6 == ((unsigned long int) var_1_2))) : (var_1_6 == ((unsigned long int) var_1_2)))) && (((var_1_5 / var_1_11) >= (var_1_8 - var_1_4)) ? (var_1_10 == ((float) (((((var_1_5 - (var_1_12 - var_1_13))) < (var_1_4)) ? ((var_1_5 - (var_1_12 - var_1_13))) : (var_1_4))))) : (var_1_10 == ((float) 4.2f)))) && (((var_1_15 - ((((0) < (var_1_16)) ? (0) : (var_1_16)))) > var_1_6) ? (var_1_14 == ((double) var_1_12)) : 1)) && ((var_1_6 <= (var_1_16 * var_1_2)) ? (((var_1_5 + var_1_1) <= 127.025f) ? (var_1_17 == ((unsigned char) var_1_18)) : (var_1_17 == ((unsigned char) var_1_18))) : (var_1_17 == ((unsigned char) var_1_18)))) && ((var_1_14 < var_1_11) ? (var_1_19 == ((double) (var_1_13 - 256.4))) : 1)) && (var_1_20 == ((unsigned char) var_1_16))) && (var_1_21 == ((unsigned short int) var_1_16)) ; [L140] RET, EXPR property() [L140] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=21/5, var_1_12=0, var_1_14=511/4, var_1_15=0, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=2, var_1_20=1, var_1_21=1, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=5, var_1_7=1, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=21/5, var_1_12=0, var_1_14=511/4, var_1_15=0, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=2, var_1_20=1, var_1_21=1, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=5, var_1_7=1, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 21, 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=43occurred 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:18:37,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire --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 d381484f1da05d6ba1f8b104325630e07c954c02d7e654b9eb3ca4a77db060bc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:18:40,312 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:18:40,462 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:18:40,471 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:18:40,471 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:18:40,520 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:18:40,521 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:18:40,521 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:18:40,523 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:18:40,528 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:18:40,528 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:18:40,529 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:18:40,530 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:18:40,531 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:18:40,532 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:18:40,532 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:18:40,534 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:18:40,534 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:18:40,535 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:18:40,536 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:18:40,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:18:40,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:18:40,538 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:18:40,538 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:18:40,539 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:18:40,539 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:18:40,540 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:18:40,540 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:18:40,541 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:18:40,541 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:18:40,543 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:18:40,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:18:40,544 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:18:40,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:18:40,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:40,545 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:18:40,545 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:18:40,545 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:18:40,546 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:18:40,547 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:18:40,547 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:18:40,548 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:18:40,548 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:18:40,548 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:18:40,549 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d381484f1da05d6ba1f8b104325630e07c954c02d7e654b9eb3ca4a77db060bc [2023-11-23 21:18:40,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:18:41,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:18:41,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:18:41,005 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:18:41,006 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:18:41,007 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-2.i [2023-11-23 21:18:44,388 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:18:44,696 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:18:44,696 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-2.i [2023-11-23 21:18:44,706 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/data/e56618164/2090359ebd5d4636821aa8b7ee4ef2be/FLAG8fbd2978c [2023-11-23 21:18:44,741 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/data/e56618164/2090359ebd5d4636821aa8b7ee4ef2be [2023-11-23 21:18:44,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:18:44,746 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:18:44,748 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:44,748 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:18:44,753 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:18:44,755 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:44" (1/1) ... [2023-11-23 21:18:44,756 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@628a5466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:44, skipping insertion in model container [2023-11-23 21:18:44,756 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:44" (1/1) ... [2023-11-23 21:18:44,790 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:18:44,958 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-2.i[912,925] [2023-11-23 21:18:45,030 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:18:45,047 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:18:45,061 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-2.i[912,925] [2023-11-23 21:18:45,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:18:45,110 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:18:45,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:45 WrapperNode [2023-11-23 21:18:45,110 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:45,112 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:18:45,112 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:18:45,112 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:18:45,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:45" (1/1) ... [2023-11-23 21:18:45,134 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:45" (1/1) ... [2023-11-23 21:18:45,163 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 141 [2023-11-23 21:18:45,164 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:18:45,165 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:18:45,165 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:18:45,165 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:18:45,174 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:45" (1/1) ... [2023-11-23 21:18:45,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:45" (1/1) ... [2023-11-23 21:18:45,180 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:45" (1/1) ... [2023-11-23 21:18:45,180 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:45" (1/1) ... [2023-11-23 21:18:45,192 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:45" (1/1) ... [2023-11-23 21:18:45,196 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:45" (1/1) ... [2023-11-23 21:18:45,200 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:45" (1/1) ... [2023-11-23 21:18:45,202 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:45" (1/1) ... [2023-11-23 21:18:45,208 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:18:45,210 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:18:45,211 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:18:45,211 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:18:45,212 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:45" (1/1) ... [2023-11-23 21:18:45,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:45,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:18:45,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:18:45,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:18:45,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:18:45,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:18:45,301 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:18:45,301 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:18:45,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:18:45,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:18:45,427 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:18:45,431 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:18:56,890 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:18:56,951 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:18:56,951 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:18:56,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:56 BoogieIcfgContainer [2023-11-23 21:18:56,952 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:18:56,954 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:18:56,954 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:18:56,957 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:18:56,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:18:44" (1/3) ... [2023-11-23 21:18:56,959 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154381d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:18:56, skipping insertion in model container [2023-11-23 21:18:56,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:45" (2/3) ... [2023-11-23 21:18:56,959 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154381d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:18:56, skipping insertion in model container [2023-11-23 21:18:56,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:56" (3/3) ... [2023-11-23 21:18:56,961 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-2.i [2023-11-23 21:18:56,981 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:18:56,981 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:18:57,032 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:18:57,041 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2624cf4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:18:57,042 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:18:57,047 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 34 states have internal predecessors, (48), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-23 21:18:57,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-23 21:18:57,064 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:57,065 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:18:57,066 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:18:57,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:57,072 INFO L85 PathProgramCache]: Analyzing trace with hash -231186859, now seen corresponding path program 1 times [2023-11-23 21:18:57,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:18:57,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604301548] [2023-11-23 21:18:57,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:57,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:18:57,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:18:57,093 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:18:57,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:18:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:57,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:18:57,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:18:57,980 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2023-11-23 21:18:57,981 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:18:57,981 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:18:57,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604301548] [2023-11-23 21:18:57,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [604301548] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:57,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:57,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:18:57,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479495227] [2023-11-23 21:18:57,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:57,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:18:57,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:18:58,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:18:58,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:18:58,024 INFO L87 Difference]: Start difference. First operand has 57 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 34 states have internal predecessors, (48), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-23 21:19:00,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:00,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:19:00,357 INFO L93 Difference]: Finished difference Result 111 states and 199 transitions. [2023-11-23 21:19:00,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:19:00,418 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) Word has length 129 [2023-11-23 21:19:00,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:19:00,427 INFO L225 Difference]: With dead ends: 111 [2023-11-23 21:19:00,429 INFO L226 Difference]: Without dead ends: 55 [2023-11-23 21:19:00,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:19:00,441 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:19:00,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2023-11-23 21:19:00,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-23 21:19:00,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-11-23 21:19:00,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-23 21:19:00,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 85 transitions. [2023-11-23 21:19:00,500 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 85 transitions. Word has length 129 [2023-11-23 21:19:00,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:19:00,501 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 85 transitions. [2023-11-23 21:19:00,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-23 21:19:00,502 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 85 transitions. [2023-11-23 21:19:00,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-23 21:19:00,506 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:00,506 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:19:00,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:19:00,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:19:00,715 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:19:00,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:00,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1913163629, now seen corresponding path program 1 times [2023-11-23 21:19:00,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:19:00,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107283366] [2023-11-23 21:19:00,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:00,717 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:19:00,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:19:00,719 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:19:00,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_133e4c53-f2cd-42aa-a0a0-e934810fbb64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 21:19:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:19:01,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-23 21:19:01,630 INFO L285 TraceCheckSpWp]: Computing forward predicates...