./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-37.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_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/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_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/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_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/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 6764ffc30d83572229fdd52ac34e537de9a6022f894af07ea29e6b16dee068e4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:11:32,893 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:11:32,973 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:11:32,978 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:11:32,979 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:11:33,009 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:11:33,010 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:11:33,010 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:11:33,011 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:11:33,012 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:11:33,013 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:11:33,013 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:11:33,014 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:11:33,014 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:11:33,015 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:11:33,016 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:11:33,016 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:11:33,017 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:11:33,018 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:11:33,018 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:11:33,019 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:11:33,020 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:11:33,021 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:11:33,021 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:11:33,022 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:11:33,022 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:11:33,023 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:11:33,024 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:11:33,024 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:11:33,025 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:11:33,025 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:11:33,026 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:11:33,026 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:11:33,027 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:11:33,027 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:11:33,028 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:11:33,028 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:11:33,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:11:33,029 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:11:33,030 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:11:33,030 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:11:33,031 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:11:33,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:11:33,031 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:11:33,032 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:11:33,032 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:11:33,032 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:11:33,033 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_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6764ffc30d83572229fdd52ac34e537de9a6022f894af07ea29e6b16dee068e4 [2023-11-23 21:11:33,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:11:33,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:11:33,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:11:33,329 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:11:33,330 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:11:33,331 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-37.i [2023-11-23 21:11:36,698 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:11:36,933 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:11:36,934 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-37.i [2023-11-23 21:11:36,944 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/data/45b678bf9/2b0b2276fdb8454dab4ffebc134dec4e/FLAG6fedad3ca [2023-11-23 21:11:36,961 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/data/45b678bf9/2b0b2276fdb8454dab4ffebc134dec4e [2023-11-23 21:11:36,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:11:36,966 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:11:36,967 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:11:36,967 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:11:36,973 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:11:36,974 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:11:36" (1/1) ... [2023-11-23 21:11:36,976 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e292781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:36, skipping insertion in model container [2023-11-23 21:11:36,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:11:36" (1/1) ... [2023-11-23 21:11:37,014 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:11:37,239 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_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-37.i[913,926] [2023-11-23 21:11:37,310 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:11:37,323 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:11:37,336 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_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-37.i[913,926] [2023-11-23 21:11:37,371 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:11:37,389 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:11:37,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:37 WrapperNode [2023-11-23 21:11:37,390 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:11:37,391 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:11:37,391 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:11:37,392 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:11:37,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:37" (1/1) ... [2023-11-23 21:11:37,411 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:37" (1/1) ... [2023-11-23 21:11:37,468 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 144 [2023-11-23 21:11:37,469 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:11:37,470 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:11:37,470 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:11:37,470 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:11:37,480 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:37" (1/1) ... [2023-11-23 21:11:37,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:37" (1/1) ... [2023-11-23 21:11:37,484 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:37" (1/1) ... [2023-11-23 21:11:37,485 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:37" (1/1) ... [2023-11-23 21:11:37,497 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:37" (1/1) ... [2023-11-23 21:11:37,506 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:37" (1/1) ... [2023-11-23 21:11:37,509 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:37" (1/1) ... [2023-11-23 21:11:37,511 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:37" (1/1) ... [2023-11-23 21:11:37,516 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:11:37,524 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:11:37,524 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:11:37,524 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:11:37,525 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:37" (1/1) ... [2023-11-23 21:11:37,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:11:37,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:11:37,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:11:37,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:11:37,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:11:37,606 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:11:37,606 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:11:37,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:11:37,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:11:37,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:11:37,697 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:11:37,699 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:11:38,201 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:11:38,399 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:11:38,399 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:11:38,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:11:38 BoogieIcfgContainer [2023-11-23 21:11:38,402 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:11:38,404 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:11:38,405 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:11:38,408 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:11:38,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:11:36" (1/3) ... [2023-11-23 21:11:38,409 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab5ec26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:11:38, skipping insertion in model container [2023-11-23 21:11:38,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:37" (2/3) ... [2023-11-23 21:11:38,410 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab5ec26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:11:38, skipping insertion in model container [2023-11-23 21:11:38,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:11:38" (3/3) ... [2023-11-23 21:11:38,412 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-37.i [2023-11-23 21:11:38,431 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:11:38,432 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:11:38,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:11:38,513 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;@47d8a640, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:11:38,513 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:11:38,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 21:11:38,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-23 21:11:38,529 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:11:38,530 INFO L195 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:11:38,530 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:11:38,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:11:38,536 INFO L85 PathProgramCache]: Analyzing trace with hash -562607876, now seen corresponding path program 1 times [2023-11-23 21:11:38,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:11:38,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12476743] [2023-11-23 21:11:38,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:11:38,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:11:38,706 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:11:38,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [487068520] [2023-11-23 21:11:38,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:11:38,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:11:38,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:11:38,709 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:11:38,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:11:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:11:39,279 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:11:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:11:39,413 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:11:39,416 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:11:39,417 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:11:39,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:11:39,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:11:39,638 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:11:39,642 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:11:39,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:11:39 BoogieIcfgContainer [2023-11-23 21:11:39,735 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:11:39,736 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:11:39,736 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:11:39,736 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:11:39,745 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:11:38" (3/4) ... [2023-11-23 21:11:39,747 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:11:39,749 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:11:39,750 INFO L158 Benchmark]: Toolchain (without parser) took 2784.00ms. Allocated memory is still 220.2MB. Free memory was 180.7MB in the beginning and 151.9MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-23 21:11:39,750 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:11:39,751 INFO L158 Benchmark]: CACSL2BoogieTranslator took 423.14ms. Allocated memory is still 220.2MB. Free memory was 180.7MB in the beginning and 167.0MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:11:39,751 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.91ms. Allocated memory is still 220.2MB. Free memory was 166.6MB in the beginning and 163.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:11:39,752 INFO L158 Benchmark]: Boogie Preprocessor took 46.93ms. Allocated memory is still 220.2MB. Free memory was 163.4MB in the beginning and 161.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:11:39,753 INFO L158 Benchmark]: RCFGBuilder took 878.18ms. Allocated memory is still 220.2MB. Free memory was 161.3MB in the beginning and 125.6MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-23 21:11:39,753 INFO L158 Benchmark]: TraceAbstraction took 1330.93ms. Allocated memory is still 220.2MB. Free memory was 125.0MB in the beginning and 151.9MB in the end (delta: -26.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:11:39,754 INFO L158 Benchmark]: Witness Printer took 12.92ms. Allocated memory is still 220.2MB. Free memory is still 151.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:11:39,757 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 423.14ms. Allocated memory is still 220.2MB. Free memory was 180.7MB in the beginning and 167.0MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.91ms. Allocated memory is still 220.2MB. Free memory was 166.6MB in the beginning and 163.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.93ms. Allocated memory is still 220.2MB. Free memory was 163.4MB in the beginning and 161.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 878.18ms. Allocated memory is still 220.2MB. Free memory was 161.3MB in the beginning and 125.6MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1330.93ms. Allocated memory is still 220.2MB. Free memory was 125.0MB in the beginning and 151.9MB in the end (delta: -26.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 12.92ms. Allocated memory is still 220.2MB. Free memory is still 151.9MB. 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 66, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryArithmeticDOUBLEoperation at line 56. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 256; [L23] unsigned short int var_1_2 = 51640; [L24] unsigned short int var_1_3 = 5; [L25] float var_1_7 = 128.8; [L26] unsigned char var_1_8 = 2; [L27] float var_1_9 = 256.5; [L28] float var_1_10 = 7.25; [L29] signed char var_1_11 = 64; [L30] signed char var_1_12 = -16; [L31] double var_1_13 = 0.9; [L32] unsigned char var_1_14 = 1; [L33] double var_1_15 = 0.0; [L34] double var_1_16 = 1.275; [L35] unsigned short int var_1_17 = 8; [L36] unsigned short int var_1_18 = 35331; [L37] signed char var_1_19 = -128; [L38] double var_1_20 = 0.0; [L39] double var_1_21 = 0.0; [L40] signed char var_1_22 = -8; [L41] float last_1_var_1_10 = 7.25; [L42] double last_1_var_1_13 = 0.9; [L43] unsigned short int last_1_var_1_17 = 8; [L44] signed char last_1_var_1_19 = -128; [L134] isInitial = 1 [L135] FCALL initially() [L136] COND TRUE 1 [L137] CALL updateLastVariables() [L124] last_1_var_1_10 = var_1_10 [L125] last_1_var_1_13 = var_1_13 [L126] last_1_var_1_17 = var_1_17 [L127] last_1_var_1_19 = var_1_19 [L137] RET updateLastVariables() [L138] CALL updateVariables() [L90] var_1_2 = __VERIFIER_nondet_ushort() [L91] CALL assume_abort_if_not(var_1_2 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-16, var_1_13=9/10, var_1_14=1, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=5, var_1_7=644/5, var_1_8=2, var_1_9=513/2] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_2 >= 32767) VAL [isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-16, var_1_13=9/10, var_1_14=1, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=5, var_1_7=644/5, var_1_8=2, var_1_9=513/2] [L92] CALL assume_abort_if_not(var_1_2 <= 65535) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-16, var_1_13=9/10, var_1_14=1, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=5, var_1_7=644/5, var_1_8=2, var_1_9=513/2] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_2 <= 65535) VAL [isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-16, var_1_13=9/10, var_1_14=1, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=5, var_1_7=644/5, var_1_8=2, var_1_9=513/2] [L93] var_1_3 = __VERIFIER_nondet_ushort() [L94] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-16, var_1_13=9/10, var_1_14=1, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_7=644/5, var_1_8=2, var_1_9=513/2] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-16, var_1_13=9/10, var_1_14=1, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_7=644/5, var_1_8=2, var_1_9=513/2] [L95] CALL assume_abort_if_not(var_1_3 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-16, var_1_13=9/10, var_1_14=1, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2, var_1_9=513/2] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_3 <= 32767) VAL [isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-16, var_1_13=9/10, var_1_14=1, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2, var_1_9=513/2] [L96] var_1_8 = __VERIFIER_nondet_uchar() [L97] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-16, var_1_13=9/10, var_1_14=1, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_9=513/2] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-16, var_1_13=9/10, var_1_14=1, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_9=513/2] [L98] CALL assume_abort_if_not(var_1_8 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-16, var_1_13=9/10, var_1_14=1, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_9=513/2] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_8 <= 255) VAL [isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-16, var_1_13=9/10, var_1_14=1, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_9=513/2] [L99] CALL assume_abort_if_not(var_1_8 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-16, var_1_13=9/10, var_1_14=1, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2, var_1_9=513/2] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_8 != 0) VAL [isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-16, var_1_13=9/10, var_1_14=1, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2, var_1_9=513/2] [L100] var_1_9 = __VERIFIER_nondet_float() [L101] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-16, var_1_13=9/10, var_1_14=1, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-16, var_1_13=9/10, var_1_14=1, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L102] var_1_12 = __VERIFIER_nondet_char() [L103] CALL assume_abort_if_not(var_1_12 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_14=1, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(var_1_12 >= -127) VAL [isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_14=1, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L104] CALL assume_abort_if_not(var_1_12 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_14=1, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_12 <= 126) VAL [isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_14=1, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L105] var_1_14 = __VERIFIER_nondet_uchar() [L106] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L107] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_14=1, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_14=1, var_1_15=0, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L108] var_1_15 = __VERIFIER_nondet_double() [L109] CALL assume_abort_if_not((var_1_15 >= 2305843.009213691390e+12F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_14=1, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not((var_1_15 >= 2305843.009213691390e+12F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_14=1, var_1_16=51/40, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L110] var_1_16 = __VERIFIER_nondet_double() [L111] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_14=1, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_14=1, var_1_17=8, var_1_18=35331, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L112] var_1_18 = __VERIFIER_nondet_ushort() [L113] CALL assume_abort_if_not(var_1_18 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_14=1, var_1_17=8, var_1_18=65534, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(var_1_18 >= 32767) VAL [isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_14=1, var_1_17=8, var_1_18=65534, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L114] CALL assume_abort_if_not(var_1_18 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_14=1, var_1_17=8, var_1_18=65534, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(var_1_18 <= 65534) VAL [isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_14=1, var_1_17=8, var_1_18=65534, var_1_19=-128, var_1_1=256, var_1_20=0, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L115] var_1_20 = __VERIFIER_nondet_double() [L116] CALL assume_abort_if_not((var_1_20 >= 4611686.018427387900e+12F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854776000e+12F && var_1_20 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_14=1, var_1_17=8, var_1_18=65534, var_1_19=-128, var_1_1=256, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not((var_1_20 >= 4611686.018427387900e+12F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854776000e+12F && var_1_20 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_14=1, var_1_17=8, var_1_18=65534, var_1_19=-128, var_1_1=256, var_1_21=0, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L117] var_1_21 = __VERIFIER_nondet_double() [L118] CALL assume_abort_if_not((var_1_21 >= 4611686.018427387900e+12F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854776000e+12F && var_1_21 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_14=1, var_1_17=8, var_1_18=65534, var_1_19=-128, var_1_1=256, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L20] COND FALSE !(!cond) [L118] RET assume_abort_if_not((var_1_21 >= 4611686.018427387900e+12F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854776000e+12F && var_1_21 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_14=1, var_1_17=8, var_1_18=65534, var_1_19=-128, var_1_1=256, var_1_22=-8, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L119] var_1_22 = __VERIFIER_nondet_char() [L120] CALL assume_abort_if_not(var_1_22 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_14=1, var_1_17=8, var_1_18=65534, var_1_19=-128, var_1_1=256, var_1_22=-127, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L20] COND FALSE !(!cond) [L120] RET assume_abort_if_not(var_1_22 >= -127) VAL [isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_14=1, var_1_17=8, var_1_18=65534, var_1_19=-128, var_1_1=256, var_1_22=-127, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L121] CALL assume_abort_if_not(var_1_22 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_14=1, var_1_17=8, var_1_18=65534, var_1_19=-128, var_1_1=256, var_1_22=-127, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L20] COND FALSE !(!cond) [L121] RET assume_abort_if_not(var_1_22 <= 126) VAL [isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=29/4, var_1_11=64, var_1_12=-1, var_1_13=9/10, var_1_14=1, var_1_17=8, var_1_18=65534, var_1_19=-128, var_1_1=256, var_1_22=-127, var_1_2=65535, var_1_3=136, var_1_7=644/5, var_1_8=2] [L138] RET updateVariables() [L139] CALL step() [L48] signed long int stepLocal_2 = var_1_3 + last_1_var_1_19; [L49] COND TRUE \read(var_1_14) [L50] COND TRUE last_1_var_1_13 <= var_1_9 [L51] var_1_13 = var_1_9 [L60] COND TRUE var_1_13 > ((var_1_20 - var_1_15) - (var_1_21 - var_1_16)) [L61] var_1_19 = ((((var_1_12) > (var_1_22)) ? (var_1_12) : (var_1_22))) [L65] var_1_17 = (var_1_18 - var_1_3) [L66] COND TRUE (var_1_17 >= var_1_17) || (var_1_9 > last_1_var_1_10) [L67] var_1_10 = var_1_9 [L69] COND TRUE var_1_10 >= var_1_10 [L70] COND TRUE var_1_9 < var_1_10 [L71] var_1_11 = var_1_12 [L74] COND TRUE (var_1_2 - var_1_3) > var_1_17 [L75] var_1_1 = (((((((((var_1_11 + var_1_3)) < (var_1_2)) ? ((var_1_11 + var_1_3)) : (var_1_2)))) < (var_1_17)) ? ((((((var_1_11 + var_1_3)) < (var_1_2)) ? ((var_1_11 + var_1_3)) : (var_1_2)))) : (var_1_17))) [L79] signed long int stepLocal_1 = var_1_1 / ((((2) < (var_1_2)) ? (2) : (var_1_2))); [L80] unsigned short int stepLocal_0 = var_1_3; [L81] COND TRUE (var_1_19 / var_1_8) < stepLocal_1 [L82] COND FALSE !(var_1_1 >= stepLocal_0) [L85] var_1_7 = var_1_9 [L139] RET step() [L140] CALL, EXPR property() [L130-L131] return ((((((((var_1_2 - var_1_3) > var_1_17) ? (var_1_1 == ((signed long int) (((((((((var_1_11 + var_1_3)) < (var_1_2)) ? ((var_1_11 + var_1_3)) : (var_1_2)))) < (var_1_17)) ? ((((((var_1_11 + var_1_3)) < (var_1_2)) ? ((var_1_11 + var_1_3)) : (var_1_2)))) : (var_1_17))))) : (var_1_1 == ((signed long int) 0))) && (((var_1_19 / var_1_8) < (var_1_1 / ((((2) < (var_1_2)) ? (2) : (var_1_2))))) ? ((var_1_1 >= var_1_3) ? (var_1_7 == ((float) 0.75f)) : (var_1_7 == ((float) var_1_9))) : 1)) && (((var_1_17 >= var_1_17) || (var_1_9 > last_1_var_1_10)) ? (var_1_10 == ((float) var_1_9)) : 1)) && ((var_1_10 >= var_1_10) ? ((var_1_9 < var_1_10) ? (var_1_11 == ((signed char) var_1_12)) : 1) : 1)) && (var_1_14 ? ((last_1_var_1_13 <= var_1_9) ? (var_1_13 == ((double) var_1_9)) : ((((((last_1_var_1_17) < ((var_1_2 * last_1_var_1_17))) ? (last_1_var_1_17) : ((var_1_2 * last_1_var_1_17)))) == (var_1_3 + last_1_var_1_19)) ? (var_1_13 == ((double) 8.75)) : (var_1_13 == ((double) (16.5 + ((var_1_15 - 49.35) - var_1_16)))))) : 1)) && (var_1_17 == ((unsigned short int) (var_1_18 - var_1_3)))) && ((var_1_13 > ((var_1_20 - var_1_15) - (var_1_21 - var_1_16))) ? (var_1_19 == ((signed char) ((((var_1_12) > (var_1_22)) ? (var_1_12) : (var_1_22))))) : (var_1_19 == ((signed char) var_1_12))) ; [L140] RET, EXPR property() [L140] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=35/4, var_1_11=-1, var_1_12=-1, var_1_13=35/4, var_1_14=1, var_1_17=65398, var_1_18=65534, var_1_19=-1, var_1_1=135, var_1_22=-127, var_1_2=65535, var_1_3=136, var_1_7=35/4, var_1_8=2, var_1_9=35/4] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=29/4, last_1_var_1_13=9/10, last_1_var_1_17=8, last_1_var_1_19=-128, var_1_10=35/4, var_1_11=-1, var_1_12=-1, var_1_13=35/4, var_1_14=1, var_1_17=65398, var_1_18=65534, var_1_19=-1, var_1_1=135, var_1_22=-127, var_1_2=65535, var_1_3=136, var_1_7=35/4, var_1_8=2, var_1_9=35/4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 20, 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=41occurred 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, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 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 21:11:39,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/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_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/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_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/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_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/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 6764ffc30d83572229fdd52ac34e537de9a6022f894af07ea29e6b16dee068e4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:11:42,605 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:11:42,748 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:11:42,758 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:11:42,759 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:11:42,804 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:11:42,805 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:11:42,806 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:11:42,807 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:11:42,812 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:11:42,813 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:11:42,813 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:11:42,814 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:11:42,816 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:11:42,816 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:11:42,817 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:11:42,818 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:11:42,819 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:11:42,819 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:11:42,820 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:11:42,821 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:11:42,822 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:11:42,822 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:11:42,822 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:11:42,823 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:11:42,823 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:11:42,824 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:11:42,824 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:11:42,825 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:11:42,825 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:11:42,827 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:11:42,827 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:11:42,828 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:11:42,828 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:11:42,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:11:42,829 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:11:42,829 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:11:42,829 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:11:42,830 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:11:42,831 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:11:42,831 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:11:42,832 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:11:42,832 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:11:42,832 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:11:42,833 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_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6764ffc30d83572229fdd52ac34e537de9a6022f894af07ea29e6b16dee068e4 [2023-11-23 21:11:43,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:11:43,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:11:43,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:11:43,281 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:11:43,281 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:11:43,283 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-37.i [2023-11-23 21:11:46,948 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:11:47,304 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:11:47,305 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-37.i [2023-11-23 21:11:47,317 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/data/0eb8073de/8f58bbd95ed24b2dbab49e04ebf50175/FLAG2b3418a13 [2023-11-23 21:11:47,344 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/data/0eb8073de/8f58bbd95ed24b2dbab49e04ebf50175 [2023-11-23 21:11:47,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:11:47,360 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:11:47,365 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:11:47,365 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:11:47,372 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:11:47,373 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:11:47" (1/1) ... [2023-11-23 21:11:47,375 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47330433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:47, skipping insertion in model container [2023-11-23 21:11:47,375 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:11:47" (1/1) ... [2023-11-23 21:11:47,416 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:11:47,613 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_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-37.i[913,926] [2023-11-23 21:11:47,704 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:11:47,726 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:11:47,744 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_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-37.i[913,926] [2023-11-23 21:11:47,789 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:11:47,833 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:11:47,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:47 WrapperNode [2023-11-23 21:11:47,834 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:11:47,835 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:11:47,835 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:11:47,835 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:11:47,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:47" (1/1) ... [2023-11-23 21:11:47,874 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:47" (1/1) ... [2023-11-23 21:11:47,928 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 142 [2023-11-23 21:11:47,929 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:11:47,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:11:47,931 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:11:47,931 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:11:47,942 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:47" (1/1) ... [2023-11-23 21:11:47,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:47" (1/1) ... [2023-11-23 21:11:47,950 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:47" (1/1) ... [2023-11-23 21:11:47,950 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:47" (1/1) ... [2023-11-23 21:11:47,967 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:47" (1/1) ... [2023-11-23 21:11:47,972 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:47" (1/1) ... [2023-11-23 21:11:47,977 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:47" (1/1) ... [2023-11-23 21:11:47,979 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:47" (1/1) ... [2023-11-23 21:11:47,986 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:11:47,987 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:11:47,987 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:11:47,988 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:11:47,989 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:47" (1/1) ... [2023-11-23 21:11:47,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:11:48,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:11:48,051 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:11:48,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:11:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:11:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:11:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:11:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:11:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:11:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:11:48,265 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:11:48,274 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:11:57,262 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:11:57,310 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:11:57,311 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:11:57,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:11:57 BoogieIcfgContainer [2023-11-23 21:11:57,311 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:11:57,314 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:11:57,315 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:11:57,318 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:11:57,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:11:47" (1/3) ... [2023-11-23 21:11:57,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748fabeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:11:57, skipping insertion in model container [2023-11-23 21:11:57,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:47" (2/3) ... [2023-11-23 21:11:57,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748fabeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:11:57, skipping insertion in model container [2023-11-23 21:11:57,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:11:57" (3/3) ... [2023-11-23 21:11:57,322 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-37.i [2023-11-23 21:11:57,340 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:11:57,340 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:11:57,389 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:11:57,395 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;@27a9301b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:11:57,395 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:11:57,399 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 35 states have internal predecessors, (49), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 21:11:57,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-23 21:11:57,420 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:11:57,421 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:11:57,422 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:11:57,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:11:57,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1198207554, now seen corresponding path program 1 times [2023-11-23 21:11:57,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:11:57,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106605920] [2023-11-23 21:11:57,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:11:57,447 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 21:11:57,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:11:57,450 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/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 21:11:57,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/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 21:11:58,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:11:58,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:11:58,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:11:58,317 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2023-11-23 21:11:58,317 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:11:58,318 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:11:58,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106605920] [2023-11-23 21:11:58,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [106605920] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:11:58,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:11:58,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:11:58,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100057312] [2023-11-23 21:11:58,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:11:58,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:11:58,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:11:58,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:11:58,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:11:58,370 INFO L87 Difference]: Start difference. First operand has 57 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 35 states have internal predecessors, (49), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 21:12:00,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:12:00,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:00,621 INFO L93 Difference]: Finished difference Result 111 states and 196 transitions. [2023-11-23 21:12:00,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:12:00,686 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 125 [2023-11-23 21:12:00,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:00,719 INFO L225 Difference]: With dead ends: 111 [2023-11-23 21:12:00,719 INFO L226 Difference]: Without dead ends: 55 [2023-11-23 21:12:00,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 124 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 21:12:00,729 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:00,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 21:12:00,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-23 21:12:00,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-11-23 21:12:00,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 33 states have (on average 1.303030303030303) internal successors, (43), 33 states have internal predecessors, (43), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 21:12:00,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 83 transitions. [2023-11-23 21:12:00,785 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 83 transitions. Word has length 125 [2023-11-23 21:12:00,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:00,786 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 83 transitions. [2023-11-23 21:12:00,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 21:12:00,787 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 83 transitions. [2023-11-23 21:12:00,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-23 21:12:00,791 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:00,792 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:00,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/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)] Forceful destruction successful, exit code 0 [2023-11-23 21:12:01,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/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 21:12:01,010 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:01,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:01,011 INFO L85 PathProgramCache]: Analyzing trace with hash 222817922, now seen corresponding path program 1 times [2023-11-23 21:12:01,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:12:01,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [464975298] [2023-11-23 21:12:01,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:01,015 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 21:12:01,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:12:01,017 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/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 21:12:01,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/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 21:12:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:01,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 21:12:01,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:12:07,217 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 21 proven. 384 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2023-11-23 21:12:07,218 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:12:08,265 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 21 proven. 36 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-23 21:12:08,265 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:12:08,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [464975298] [2023-11-23 21:12:08,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [464975298] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:12:08,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1413274859] [2023-11-23 21:12:08,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:08,284 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:12:08,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:12:08,287 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:12:08,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-23 21:12:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:10,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 21:12:10,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:12:14,386 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 369 proven. 36 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2023-11-23 21:12:14,386 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:12:15,048 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 21 proven. 36 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-23 21:12:15,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1413274859] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:12:15,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588072932] [2023-11-23 21:12:15,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:15,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:12:15,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:12:15,056 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:12:15,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc3cf1e-c0e9-4088-af7b-957e8bb6b10c/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 21:12:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:15,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:12:15,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:12:19,558 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 369 proven. 36 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2023-11-23 21:12:19,558 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:12:20,177 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 21 proven. 36 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-23 21:12:20,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588072932] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:12:20,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-23 21:12:20,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 13 [2023-11-23 21:12:20,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403148001] [2023-11-23 21:12:20,179 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-23 21:12:20,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 21:12:20,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:12:20,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 21:12:20,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-23 21:12:20,184 INFO L87 Difference]: Start difference. First operand 55 states and 83 transitions. Second operand has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 4 states have call successors, (40), 3 states have call predecessors, (40), 6 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2023-11-23 21:12:24,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:12:26,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:12:28,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []