./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-78.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_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/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_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-78.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/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_25a17835-9a09-4f7f-885e-52f791f53b1d/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 b1fd945e1ce3809aaa8f913c5bb91c12197d059ef9416e557ca516343fb44c25 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:31:53,107 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:31:53,215 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:31:53,222 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:31:53,223 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:31:53,254 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:31:53,255 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:31:53,256 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:31:53,257 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:31:53,258 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:31:53,258 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:31:53,259 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:31:53,260 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:31:53,260 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:31:53,261 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:31:53,262 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:31:53,262 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:31:53,263 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:31:53,264 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:31:53,264 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:31:53,265 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:31:53,266 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:31:53,267 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:31:53,268 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:31:53,268 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:31:53,269 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:31:53,269 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:31:53,270 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:31:53,270 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:31:53,271 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:31:53,271 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:31:53,272 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:31:53,272 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:31:53,273 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:31:53,273 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:31:53,274 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:31:53,274 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:31:53,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:31:53,276 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:31:53,276 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:31:53,277 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:31:53,277 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:31:53,278 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:31:53,278 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:31:53,278 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:31:53,279 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:31:53,279 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:31:53,279 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_25a17835-9a09-4f7f-885e-52f791f53b1d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1fd945e1ce3809aaa8f913c5bb91c12197d059ef9416e557ca516343fb44c25 [2023-11-23 21:31:53,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:31:53,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:31:53,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:31:53,588 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:31:53,589 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:31:53,590 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-78.i [2023-11-23 21:31:56,855 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:31:57,177 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:31:57,178 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-78.i [2023-11-23 21:31:57,191 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire/data/077f9039a/843c0f4e617c45c798a418289c977aa1/FLAGf17e4be15 [2023-11-23 21:31:57,211 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire/data/077f9039a/843c0f4e617c45c798a418289c977aa1 [2023-11-23 21:31:57,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:31:57,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:31:57,226 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:31:57,226 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:31:57,233 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:31:57,237 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:31:57" (1/1) ... [2023-11-23 21:31:57,239 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@152b2bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:57, skipping insertion in model container [2023-11-23 21:31:57,239 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:31:57" (1/1) ... [2023-11-23 21:31:57,288 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:31:57,507 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_25a17835-9a09-4f7f-885e-52f791f53b1d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-78.i[915,928] [2023-11-23 21:31:57,551 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:31:57,569 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:31:57,584 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_25a17835-9a09-4f7f-885e-52f791f53b1d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-78.i[915,928] [2023-11-23 21:31:57,609 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:31:57,629 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:31:57,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:57 WrapperNode [2023-11-23 21:31:57,630 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:31:57,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:31:57,631 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:31:57,632 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:31:57,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:57" (1/1) ... [2023-11-23 21:31:57,651 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:57" (1/1) ... [2023-11-23 21:31:57,686 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 124 [2023-11-23 21:31:57,687 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:31:57,687 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:31:57,688 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:31:57,688 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:31:57,698 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:57" (1/1) ... [2023-11-23 21:31:57,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:57" (1/1) ... [2023-11-23 21:31:57,702 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:57" (1/1) ... [2023-11-23 21:31:57,702 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:57" (1/1) ... [2023-11-23 21:31:57,710 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:57" (1/1) ... [2023-11-23 21:31:57,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:57" (1/1) ... [2023-11-23 21:31:57,720 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:57" (1/1) ... [2023-11-23 21:31:57,721 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:57" (1/1) ... [2023-11-23 21:31:57,725 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:31:57,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:31:57,726 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:31:57,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:31:57,727 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:57" (1/1) ... [2023-11-23 21:31:57,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:31:57,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:31:57,770 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:31:57,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:31:57,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:31:57,815 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:31:57,815 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:31:57,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:31:57,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:31:57,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:31:57,911 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:31:57,914 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:31:58,207 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:31:58,332 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:31:58,332 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:31:58,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:31:58 BoogieIcfgContainer [2023-11-23 21:31:58,334 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:31:58,337 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:31:58,338 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:31:58,342 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:31:58,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:31:57" (1/3) ... [2023-11-23 21:31:58,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c71178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:31:58, skipping insertion in model container [2023-11-23 21:31:58,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:57" (2/3) ... [2023-11-23 21:31:58,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c71178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:31:58, skipping insertion in model container [2023-11-23 21:31:58,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:31:58" (3/3) ... [2023-11-23 21:31:58,346 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-78.i [2023-11-23 21:31:58,369 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:31:58,370 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:31:58,427 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:31:58,436 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;@22659d0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:31:58,436 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:31:58,441 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 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 21:31:58,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-23 21:31:58,458 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:31:58,460 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] [2023-11-23 21:31:58,460 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:31:58,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:31:58,469 INFO L85 PathProgramCache]: Analyzing trace with hash 847395660, now seen corresponding path program 1 times [2023-11-23 21:31:58,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:31:58,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266725218] [2023-11-23 21:31:58,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:58,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:31:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:31:58,863 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:31:59,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:31:59,184 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:31:59,187 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:31:59,189 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:31:59,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:31:59,204 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:31:59,211 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:31:59,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:31:59 BoogieIcfgContainer [2023-11-23 21:31:59,347 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:31:59,350 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:31:59,350 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:31:59,350 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:31:59,351 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:31:58" (3/4) ... [2023-11-23 21:31:59,357 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:31:59,358 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:31:59,360 INFO L158 Benchmark]: Toolchain (without parser) took 2137.87ms. Allocated memory is still 195.0MB. Free memory was 145.6MB in the beginning and 68.0MB in the end (delta: 77.6MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. [2023-11-23 21:31:59,361 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 146.8MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:31:59,363 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.12ms. Allocated memory is still 195.0MB. Free memory was 144.8MB in the beginning and 133.1MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 21:31:59,364 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.68ms. Allocated memory is still 195.0MB. Free memory was 133.1MB in the beginning and 131.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:31:59,407 INFO L158 Benchmark]: Boogie Preprocessor took 37.43ms. Allocated memory is still 195.0MB. Free memory was 131.0MB in the beginning and 129.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:31:59,408 INFO L158 Benchmark]: RCFGBuilder took 608.73ms. Allocated memory is still 195.0MB. Free memory was 129.3MB in the beginning and 105.8MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-23 21:31:59,411 INFO L158 Benchmark]: TraceAbstraction took 1009.68ms. Allocated memory is still 195.0MB. Free memory was 105.0MB in the beginning and 68.5MB in the end (delta: 36.5MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-23 21:31:59,411 INFO L158 Benchmark]: Witness Printer took 9.05ms. Allocated memory is still 195.0MB. Free memory was 68.5MB in the beginning and 68.0MB in the end (delta: 432.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:31:59,415 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 146.8MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 404.12ms. Allocated memory is still 195.0MB. Free memory was 144.8MB in the beginning and 133.1MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.68ms. Allocated memory is still 195.0MB. Free memory was 133.1MB in the beginning and 131.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.43ms. Allocated memory is still 195.0MB. Free memory was 131.0MB in the beginning and 129.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 608.73ms. Allocated memory is still 195.0MB. Free memory was 129.3MB in the beginning and 105.8MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1009.68ms. Allocated memory is still 195.0MB. Free memory was 105.0MB in the beginning and 68.5MB in the end (delta: 36.5MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 9.05ms. Allocated memory is still 195.0MB. Free memory was 68.5MB in the beginning and 68.0MB in the end (delta: 432.5kB). 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 59, overapproximation of someUnaryDOUBLEoperation at line 36. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = -200; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 1; [L25] signed long int var_1_6 = 128; [L26] signed long int var_1_7 = 10; [L27] signed short int var_1_8 = 0; [L28] signed short int var_1_9 = 25; [L29] signed short int var_1_10 = 32; [L30] signed short int var_1_11 = 1000; [L31] signed short int var_1_12 = 25; [L32] signed short int var_1_13 = 128; [L33] unsigned long int var_1_14 = 5; [L34] float var_1_15 = 8.25; [L35] float var_1_16 = 63.5; [L36] float var_1_17 = -0.6; [L37] signed long int last_1_var_1_1 = -200; [L103] isInitial = 1 [L104] FCALL initially() [L105] COND TRUE 1 [L106] CALL updateLastVariables() [L96] last_1_var_1_1 = var_1_1 [L106] RET updateLastVariables() [L107] CALL updateVariables() [L63] var_1_2 = __VERIFIER_nondet_uchar() [L64] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-200, var_1_10=32, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_3=1, var_1_6=128, var_1_7=10, var_1_8=0, var_1_9=25] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_1=-200, var_1_10=32, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_3=1, var_1_6=128, var_1_7=10, var_1_8=0, var_1_9=25] [L65] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-200, var_1_10=32, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=128, var_1_7=10, var_1_8=0, var_1_9=25] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_1=-200, var_1_10=32, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=128, var_1_7=10, var_1_8=0, var_1_9=25] [L66] var_1_3 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-200, var_1_10=32, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_6=128, var_1_7=10, var_1_8=0, var_1_9=25] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_1=-200, var_1_10=32, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_6=128, var_1_7=10, var_1_8=0, var_1_9=25] [L68] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-200, var_1_10=32, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=128, var_1_7=10, var_1_8=0, var_1_9=25] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, last_1_var_1_1=-200, var_1_10=32, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=128, var_1_7=10, var_1_8=0, var_1_9=25] [L69] var_1_6 = __VERIFIER_nondet_long() [L70] CALL assume_abort_if_not(var_1_6 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-200, var_1_10=32, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=10, var_1_8=0, var_1_9=25] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_6 >= -1) VAL [isInitial=1, last_1_var_1_1=-200, var_1_10=32, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=10, var_1_8=0, var_1_9=25] [L71] CALL assume_abort_if_not(var_1_6 <= 2147483646) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-200, var_1_10=32, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=10, var_1_8=0, var_1_9=25] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_6 <= 2147483646) VAL [isInitial=1, last_1_var_1_1=-200, var_1_10=32, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=10, var_1_8=0, var_1_9=25] [L72] var_1_7 = __VERIFIER_nondet_long() [L73] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-200, var_1_10=32, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=25] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_1=-200, var_1_10=32, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=25] [L74] CALL assume_abort_if_not(var_1_7 <= 2147483646) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-200, var_1_10=32, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=25] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_7 <= 2147483646) VAL [isInitial=1, last_1_var_1_1=-200, var_1_10=32, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=25] [L75] var_1_9 = __VERIFIER_nondet_short() [L76] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-200, var_1_10=32, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_1=-200, var_1_10=32, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L77] CALL assume_abort_if_not(var_1_9 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-200, var_1_10=32, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_9 <= 16383) VAL [isInitial=1, last_1_var_1_1=-200, var_1_10=32, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L78] var_1_10 = __VERIFIER_nondet_short() [L79] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-200, var_1_10=4, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_1=-200, var_1_10=4, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L80] CALL assume_abort_if_not(var_1_10 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-200, var_1_10=4, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_10 <= 16383) VAL [isInitial=1, last_1_var_1_1=-200, var_1_10=4, var_1_11=1000, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L81] var_1_11 = __VERIFIER_nondet_short() [L82] CALL assume_abort_if_not(var_1_11 >= -8191) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-200, var_1_10=4, var_1_11=-1, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_11 >= -8191) VAL [isInitial=1, last_1_var_1_1=-200, var_1_10=4, var_1_11=-1, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L83] CALL assume_abort_if_not(var_1_11 <= 8192) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-200, var_1_10=4, var_1_11=-1, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_11 <= 8192) VAL [isInitial=1, last_1_var_1_1=-200, var_1_10=4, var_1_11=-1, var_1_12=25, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L84] var_1_12 = __VERIFIER_nondet_short() [L85] CALL assume_abort_if_not(var_1_12 >= -8191) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-200, var_1_10=4, var_1_11=-1, var_1_12=8191, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_12 >= -8191) VAL [isInitial=1, last_1_var_1_1=-200, var_1_10=4, var_1_11=-1, var_1_12=8191, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L86] CALL assume_abort_if_not(var_1_12 <= 8191) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-200, var_1_10=4, var_1_11=-1, var_1_12=8191, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_12 <= 8191) VAL [isInitial=1, last_1_var_1_1=-200, var_1_10=4, var_1_11=-1, var_1_12=8191, var_1_13=128, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L87] var_1_13 = __VERIFIER_nondet_short() [L88] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-200, var_1_10=4, var_1_11=-1, var_1_12=8191, var_1_13=0, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_1=-200, var_1_10=4, var_1_11=-1, var_1_12=8191, var_1_13=0, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L89] CALL assume_abort_if_not(var_1_13 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-200, var_1_10=4, var_1_11=-1, var_1_12=8191, var_1_13=0, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_13 <= 32766) VAL [isInitial=1, last_1_var_1_1=-200, var_1_10=4, var_1_11=-1, var_1_12=8191, var_1_13=0, var_1_14=5, var_1_15=33/4, var_1_16=127/2, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L90] var_1_16 = __VERIFIER_nondet_float() [L91] CALL assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-200, var_1_10=4, var_1_11=-1, var_1_12=8191, var_1_13=0, var_1_14=5, var_1_15=33/4, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=-200, var_1_10=4, var_1_11=-1, var_1_12=8191, var_1_13=0, var_1_14=5, var_1_15=33/4, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L92] var_1_17 = __VERIFIER_nondet_float() [L93] CALL assume_abort_if_not((var_1_17 >= -922337.2036854765600e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-200, var_1_10=4, var_1_11=-1, var_1_12=8191, var_1_13=0, var_1_14=5, var_1_15=33/4, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not((var_1_17 >= -922337.2036854765600e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=-200, var_1_10=4, var_1_11=-1, var_1_12=8191, var_1_13=0, var_1_14=5, var_1_15=33/4, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=0, var_1_9=4] [L107] RET updateVariables() [L108] CALL step() [L41] COND TRUE \read(var_1_3) [L42] var_1_14 = (2931747731u - var_1_10) [L44] unsigned char stepLocal_1 = var_1_3; [L45] unsigned char stepLocal_0 = var_1_2; [L46] COND TRUE var_1_2 && stepLocal_1 [L47] COND FALSE !(stepLocal_0 && (var_1_14 > last_1_var_1_1)) [L50] var_1_1 = var_1_6 [L53] COND FALSE !(var_1_14 > var_1_14) [L56] var_1_8 = (((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))) - var_1_13) [L58] COND TRUE var_1_11 >= var_1_1 [L59] var_1_15 = ((((var_1_16) > (var_1_17)) ? (var_1_16) : (var_1_17))) [L108] RET step() [L109] CALL, EXPR property() [L99-L100] return ((((var_1_2 && var_1_3) ? ((var_1_2 && (var_1_14 > last_1_var_1_1)) ? (var_1_1 == ((signed long int) (var_1_6 - var_1_7))) : (var_1_1 == ((signed long int) var_1_6))) : 1) && ((var_1_14 > var_1_14) ? (var_1_8 == ((signed short int) ((var_1_9 - var_1_10) + ((((-4) < ((var_1_11 + var_1_12))) ? (-4) : ((var_1_11 + var_1_12))))))) : (var_1_8 == ((signed short int) (((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))) - var_1_13))))) && (var_1_3 ? (var_1_14 == ((unsigned long int) (2931747731u - var_1_10))) : 1)) && ((var_1_11 >= var_1_1) ? (var_1_15 == ((float) ((((var_1_16) > (var_1_17)) ? (var_1_16) : (var_1_17))))) : 1) ; [L109] RET, EXPR property() [L109] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_1=-200, var_1_10=4, var_1_11=-1, var_1_12=8191, var_1_13=0, var_1_14=2931747727, var_1_15=33/4, var_1_16=33/4, var_1_17=33/4, var_1_1=-1, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=4, var_1_9=4] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_1=-200, var_1_10=4, var_1_11=-1, var_1_12=8191, var_1_13=0, var_1_14=2931747727, var_1_15=33/4, var_1_16=33/4, var_1_17=33/4, var_1_1=-1, var_1_2=1, var_1_3=1, var_1_6=-1, var_1_7=0, var_1_8=4, var_1_9=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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=40occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 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 21:31:59,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/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_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/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_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-78.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/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_25a17835-9a09-4f7f-885e-52f791f53b1d/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 b1fd945e1ce3809aaa8f913c5bb91c12197d059ef9416e557ca516343fb44c25 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:32:02,282 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:32:02,423 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:32:02,433 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:32:02,433 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:32:02,482 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:32:02,483 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:32:02,484 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:32:02,485 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:32:02,490 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:32:02,490 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:32:02,491 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:32:02,491 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:32:02,493 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:32:02,494 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:32:02,494 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:32:02,495 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:32:02,496 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:32:02,496 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:32:02,497 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:32:02,497 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:32:02,498 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:32:02,498 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:32:02,499 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:32:02,499 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:32:02,500 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:32:02,500 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:32:02,501 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:32:02,501 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:32:02,501 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:32:02,503 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:32:02,503 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:32:02,504 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:32:02,504 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:32:02,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:32:02,505 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:32:02,505 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:32:02,505 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:32:02,505 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:32:02,506 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:32:02,507 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:32:02,507 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:32:02,507 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:32:02,508 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:32:02,508 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_25a17835-9a09-4f7f-885e-52f791f53b1d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1fd945e1ce3809aaa8f913c5bb91c12197d059ef9416e557ca516343fb44c25 [2023-11-23 21:32:02,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:32:02,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:32:02,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:32:02,978 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:32:02,978 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:32:02,980 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-78.i [2023-11-23 21:32:06,154 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:32:06,510 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:32:06,510 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-78.i [2023-11-23 21:32:06,518 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire/data/588a75d45/6e1f251874944f91aabe271b8e7af56b/FLAG02023c880 [2023-11-23 21:32:06,538 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire/data/588a75d45/6e1f251874944f91aabe271b8e7af56b [2023-11-23 21:32:06,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:32:06,549 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:32:06,555 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:32:06,555 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:32:06,561 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:32:06,565 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:06" (1/1) ... [2023-11-23 21:32:06,567 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@139a459d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:06, skipping insertion in model container [2023-11-23 21:32:06,567 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:06" (1/1) ... [2023-11-23 21:32:06,606 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:32:06,816 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_25a17835-9a09-4f7f-885e-52f791f53b1d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-78.i[915,928] [2023-11-23 21:32:06,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:32:06,921 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:32:06,938 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_25a17835-9a09-4f7f-885e-52f791f53b1d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-78.i[915,928] [2023-11-23 21:32:06,978 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:32:07,007 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:32:07,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:07 WrapperNode [2023-11-23 21:32:07,008 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:32:07,009 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:32:07,010 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:32:07,010 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:32:07,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:07" (1/1) ... [2023-11-23 21:32:07,047 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:07" (1/1) ... [2023-11-23 21:32:07,087 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117 [2023-11-23 21:32:07,088 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:32:07,088 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:32:07,088 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:32:07,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:32:07,098 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:07" (1/1) ... [2023-11-23 21:32:07,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:07" (1/1) ... [2023-11-23 21:32:07,103 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:07" (1/1) ... [2023-11-23 21:32:07,103 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:07" (1/1) ... [2023-11-23 21:32:07,112 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:07" (1/1) ... [2023-11-23 21:32:07,127 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:07" (1/1) ... [2023-11-23 21:32:07,130 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:07" (1/1) ... [2023-11-23 21:32:07,139 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:07" (1/1) ... [2023-11-23 21:32:07,142 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:32:07,147 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:32:07,148 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:32:07,148 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:32:07,149 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:07" (1/1) ... [2023-11-23 21:32:07,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:32:07,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:32:07,194 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:32:07,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:32:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:32:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:32:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:32:07,244 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:32:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:32:07,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:32:07,365 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:32:07,368 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:32:07,711 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:32:07,804 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:32:07,804 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:32:07,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:07 BoogieIcfgContainer [2023-11-23 21:32:07,806 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:32:07,808 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:32:07,808 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:32:07,812 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:32:07,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:32:06" (1/3) ... [2023-11-23 21:32:07,813 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45696669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:07, skipping insertion in model container [2023-11-23 21:32:07,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:07" (2/3) ... [2023-11-23 21:32:07,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45696669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:07, skipping insertion in model container [2023-11-23 21:32:07,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:07" (3/3) ... [2023-11-23 21:32:07,818 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-78.i [2023-11-23 21:32:07,840 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:32:07,840 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:32:07,907 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:32:07,916 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;@68eac0d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:32:07,917 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:32:07,922 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 28 states have internal predecessors, (37), 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 21:32:07,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-23 21:32:07,964 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:07,965 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] [2023-11-23 21:32:07,966 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:07,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:07,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1419358635, now seen corresponding path program 1 times [2023-11-23 21:32:07,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:32:07,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1087849503] [2023-11-23 21:32:07,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:07,995 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 21:32:07,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:32:08,000 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/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 21:32:08,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/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 21:32:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:08,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:32:08,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:32:08,329 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2023-11-23 21:32:08,330 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:32:08,331 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:32:08,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1087849503] [2023-11-23 21:32:08,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1087849503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:08,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:08,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:32:08,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260412933] [2023-11-23 21:32:08,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:08,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:32:08,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:32:08,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:32:08,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:32:08,393 INFO L87 Difference]: Start difference. First operand has 50 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 28 states have internal predecessors, (37), 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 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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 21:32:08,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:08,467 INFO L93 Difference]: Finished difference Result 97 states and 172 transitions. [2023-11-23 21:32:08,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:32:08,471 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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 121 [2023-11-23 21:32:08,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:08,479 INFO L225 Difference]: With dead ends: 97 [2023-11-23 21:32:08,480 INFO L226 Difference]: Without dead ends: 48 [2023-11-23 21:32:08,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 120 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 21:32:08,489 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:08,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:32:08,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-23 21:32:08,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-23 21:32:08,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 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 21:32:08,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 71 transitions. [2023-11-23 21:32:08,547 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 71 transitions. Word has length 121 [2023-11-23 21:32:08,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:08,548 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 71 transitions. [2023-11-23 21:32:08,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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 21:32:08,549 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 71 transitions. [2023-11-23 21:32:08,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-23 21:32:08,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:08,553 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] [2023-11-23 21:32:08,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/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 21:32:08,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/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 21:32:08,758 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:08,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:08,758 INFO L85 PathProgramCache]: Analyzing trace with hash -530885869, now seen corresponding path program 1 times [2023-11-23 21:32:08,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:32:08,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [116562520] [2023-11-23 21:32:08,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:08,760 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 21:32:08,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:32:08,762 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/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 21:32:08,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a17835-9a09-4f7f-885e-52f791f53b1d/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 21:32:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:08,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 21:32:08,990 INFO L285 TraceCheckSpWp]: Computing forward predicates...