./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-66.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-66.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh --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 57396a3f6522baf465f10477ff1b4f4e1deccf80d42129ee9d03d8e74cd20ef5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:34:05,131 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:34:05,198 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 16:34:05,203 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:34:05,204 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:34:05,228 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:34:05,228 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:34:05,229 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:34:05,230 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:34:05,230 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:34:05,231 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:34:05,231 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:34:05,232 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:34:05,232 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:34:05,233 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:34:05,233 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:34:05,234 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:34:05,234 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:34:05,235 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:34:05,235 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:34:05,236 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:34:05,236 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:34:05,237 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:34:05,238 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:34:05,238 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:34:05,239 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:34:05,239 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:34:05,239 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:34:05,240 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:34:05,240 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:34:05,240 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:34:05,241 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:34:05,241 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:34:05,242 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:34:05,242 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:34:05,242 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:34:05,242 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:34:05,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:34:05,243 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:34:05,243 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:34:05,243 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:34:05,244 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:34:05,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:34:05,244 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:34:05,244 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:34:05,244 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:34:05,244 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:34:05,245 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_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57396a3f6522baf465f10477ff1b4f4e1deccf80d42129ee9d03d8e74cd20ef5 [2023-12-02 16:34:05,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:34:05,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:34:05,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:34:05,492 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:34:05,493 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:34:05,494 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-66.i [2023-12-02 16:34:08,297 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:34:08,514 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:34:08,515 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-66.i [2023-12-02 16:34:08,525 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/data/5a787e550/b1b240f656c547d280ce0864d649ac47/FLAG0b9e66ee7 [2023-12-02 16:34:08,542 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/data/5a787e550/b1b240f656c547d280ce0864d649ac47 [2023-12-02 16:34:08,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:34:08,547 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:34:08,549 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:34:08,549 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:34:08,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:34:08,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:34:08" (1/1) ... [2023-12-02 16:34:08,558 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c65fb0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:08, skipping insertion in model container [2023-12-02 16:34:08,559 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:34:08" (1/1) ... [2023-12-02 16:34:08,591 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:34:08,751 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_9babcab1-4342-468b-a4b7-87ed139ef449/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-66.i[915,928] [2023-12-02 16:34:08,798 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:34:08,810 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:34:08,822 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_9babcab1-4342-468b-a4b7-87ed139ef449/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-66.i[915,928] [2023-12-02 16:34:08,848 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:34:08,870 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:34:08,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:08 WrapperNode [2023-12-02 16:34:08,870 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:34:08,871 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:34:08,872 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:34:08,872 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:34:08,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:08" (1/1) ... [2023-12-02 16:34:08,889 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:08" (1/1) ... [2023-12-02 16:34:08,930 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 108 [2023-12-02 16:34:08,931 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:34:08,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:34:08,932 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:34:08,932 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:34:08,944 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:08" (1/1) ... [2023-12-02 16:34:08,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:08" (1/1) ... [2023-12-02 16:34:08,947 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:08" (1/1) ... [2023-12-02 16:34:08,948 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:08" (1/1) ... [2023-12-02 16:34:08,959 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:08" (1/1) ... [2023-12-02 16:34:08,963 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:08" (1/1) ... [2023-12-02 16:34:08,966 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:08" (1/1) ... [2023-12-02 16:34:08,969 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:08" (1/1) ... [2023-12-02 16:34:08,973 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:34:08,974 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:34:08,974 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:34:08,974 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:34:08,975 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:08" (1/1) ... [2023-12-02 16:34:08,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:34:08,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:34:09,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:34:09,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:34:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:34:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 16:34:09,056 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 16:34:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:34:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:34:09,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:34:09,133 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:34:09,135 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:34:09,400 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:34:09,496 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:34:09,497 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:34:09,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:34:09 BoogieIcfgContainer [2023-12-02 16:34:09,499 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:34:09,502 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:34:09,502 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:34:09,505 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:34:09,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:34:08" (1/3) ... [2023-12-02 16:34:09,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0bfcd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:34:09, skipping insertion in model container [2023-12-02 16:34:09,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:08" (2/3) ... [2023-12-02 16:34:09,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0bfcd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:34:09, skipping insertion in model container [2023-12-02 16:34:09,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:34:09" (3/3) ... [2023-12-02 16:34:09,509 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-66.i [2023-12-02 16:34:09,529 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:34:09,529 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:34:09,576 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:34:09,582 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;@d9af9e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:34:09,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:34:09,586 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 16:34:09,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-02 16:34:09,594 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:34:09,595 INFO L195 NwaCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:34:09,595 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:34:09,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:34:09,600 INFO L85 PathProgramCache]: Analyzing trace with hash -288601860, now seen corresponding path program 1 times [2023-12-02 16:34:09,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:34:09,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321767791] [2023-12-02 16:34:09,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:34:09,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:34:09,747 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:34:09,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1286195297] [2023-12-02 16:34:09,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:34:09,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:34:09,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:34:09,755 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:34:09,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 16:34:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:34:09,907 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 16:34:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:34:10,020 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 16:34:10,022 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 16:34:10,024 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 16:34:10,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 16:34:10,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 16:34:10,231 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 16:34:10,235 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:34:10,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:34:10 BoogieIcfgContainer [2023-12-02 16:34:10,292 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:34:10,293 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:34:10,293 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:34:10,293 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:34:10,293 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:34:09" (3/4) ... [2023-12-02 16:34:10,295 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 16:34:10,296 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:34:10,297 INFO L158 Benchmark]: Toolchain (without parser) took 1749.41ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 138.8MB in the beginning and 176.8MB in the end (delta: -38.0MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2023-12-02 16:34:10,297 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 180.4MB. Free memory is still 153.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:34:10,298 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.89ms. Allocated memory is still 180.4MB. Free memory was 138.4MB in the beginning and 126.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 16:34:10,298 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.54ms. Allocated memory is still 180.4MB. Free memory was 125.9MB in the beginning and 122.9MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 16:34:10,299 INFO L158 Benchmark]: Boogie Preprocessor took 41.53ms. Allocated memory is still 180.4MB. Free memory was 122.9MB in the beginning and 121.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:34:10,300 INFO L158 Benchmark]: RCFGBuilder took 524.80ms. Allocated memory is still 180.4MB. Free memory was 121.2MB in the beginning and 97.7MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-12-02 16:34:10,300 INFO L158 Benchmark]: TraceAbstraction took 790.29ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 96.9MB in the beginning and 176.8MB in the end (delta: -79.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:34:10,301 INFO L158 Benchmark]: Witness Printer took 3.11ms. Allocated memory is still 218.1MB. Free memory is still 176.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:34:10,304 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 180.4MB. Free memory is still 153.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.89ms. Allocated memory is still 180.4MB. Free memory was 138.4MB in the beginning and 126.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.54ms. Allocated memory is still 180.4MB. Free memory was 125.9MB in the beginning and 122.9MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.53ms. Allocated memory is still 180.4MB. Free memory was 122.9MB in the beginning and 121.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 524.80ms. Allocated memory is still 180.4MB. Free memory was 121.2MB in the beginning and 97.7MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 790.29ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 96.9MB in the beginning and 176.8MB in the end (delta: -79.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.11ms. Allocated memory is still 218.1MB. Free memory is still 176.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 83, overapproximation of someBinaryDOUBLEComparisonOperation at line 49. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 8; [L23] unsigned short int var_1_4 = 4; [L24] unsigned short int var_1_7 = 10000; [L25] unsigned short int var_1_9 = 38382; [L26] unsigned char var_1_10 = 0; [L27] unsigned char var_1_11 = 0; [L28] unsigned char var_1_12 = 100; [L29] double var_1_13 = 5.9; [L30] float var_1_15 = 9.375; [L31] double var_1_16 = 64.75; [L32] double var_1_17 = 99.5; [L33] float var_1_18 = 0.75; [L34] unsigned char last_1_var_1_10 = 0; [L35] double last_1_var_1_13 = 5.9; [L94] isInitial = 1 [L95] FCALL initially() [L96] int k_loop; [L97] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=100, var_1_13=59/10, var_1_15=75/8, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=4, var_1_7=10000, var_1_9=38382] [L97] COND TRUE k_loop < 1 [L98] CALL updateLastVariables() [L86] last_1_var_1_10 = var_1_10 [L87] last_1_var_1_13 = var_1_13 [L98] RET updateLastVariables() [L99] CALL updateVariables() [L60] var_1_4 = __VERIFIER_nondet_ushort() [L61] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=100, var_1_13=59/10, var_1_15=75/8, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_7=10000, var_1_9=38382] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=100, var_1_13=59/10, var_1_15=75/8, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_7=10000, var_1_9=38382] [L62] CALL assume_abort_if_not(var_1_4 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=100, var_1_13=59/10, var_1_15=75/8, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=10000, var_1_9=38382] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_4 <= 32767) VAL [isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=100, var_1_13=59/10, var_1_15=75/8, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=10000, var_1_9=38382] [L63] var_1_7 = __VERIFIER_nondet_ushort() [L64] CALL assume_abort_if_not(var_1_7 >= 8191) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=100, var_1_13=59/10, var_1_15=75/8, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=38382] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_7 >= 8191) VAL [isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=100, var_1_13=59/10, var_1_15=75/8, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=38382] [L65] CALL assume_abort_if_not(var_1_7 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=100, var_1_13=59/10, var_1_15=75/8, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=38382] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_7 <= 16383) VAL [isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=100, var_1_13=59/10, var_1_15=75/8, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=38382] [L66] var_1_9 = __VERIFIER_nondet_ushort() [L67] CALL assume_abort_if_not(var_1_9 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=100, var_1_13=59/10, var_1_15=75/8, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_9 >= 32767) VAL [isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=100, var_1_13=59/10, var_1_15=75/8, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L68] CALL assume_abort_if_not(var_1_9 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=100, var_1_13=59/10, var_1_15=75/8, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_9 <= 65534) VAL [isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=100, var_1_13=59/10, var_1_15=75/8, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L69] var_1_11 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_12=100, var_1_13=59/10, var_1_15=75/8, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_12=100, var_1_13=59/10, var_1_15=75/8, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L71] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=100, var_1_13=59/10, var_1_15=75/8, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=100, var_1_13=59/10, var_1_15=75/8, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L72] var_1_12 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_13=59/10, var_1_15=75/8, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_13=59/10, var_1_15=75/8, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L74] CALL assume_abort_if_not(var_1_12 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=59/10, var_1_15=75/8, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_12 <= 254) VAL [isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=59/10, var_1_15=75/8, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L75] var_1_15 = __VERIFIER_nondet_float() [L76] CALL assume_abort_if_not((var_1_15 >= -922337.2036854776000e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=59/10, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not((var_1_15 >= -922337.2036854776000e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=59/10, var_1_16=259/4, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L77] var_1_16 = __VERIFIER_nondet_double() [L78] 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_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=59/10, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L20] COND FALSE !(!cond) [L78] 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_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=59/10, var_1_17=199/2, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L79] var_1_17 = __VERIFIER_nondet_double() [L80] 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_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=59/10, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L20] COND FALSE !(!cond) [L80] 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_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=59/10, var_1_18=3/4, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L81] var_1_18 = __VERIFIER_nondet_float() [L82] CALL assume_abort_if_not((var_1_18 >= -922337.2036854776000e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854776000e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=59/10, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not((var_1_18 >= -922337.2036854776000e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854776000e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=59/10, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L83] CALL assume_abort_if_not(var_1_18 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=59/10, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_18 != 0.0F) VAL [isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=59/10, var_1_1=8, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L99] RET updateVariables() [L100] CALL step() [L39] COND TRUE last_1_var_1_10 <= last_1_var_1_10 [L40] var_1_1 = (last_1_var_1_10 + ((last_1_var_1_10 + last_1_var_1_10) + (var_1_7 - last_1_var_1_10))) [L44] COND FALSE !(\read(var_1_11)) [L49] COND TRUE (last_1_var_1_13 + var_1_15) < 16.75f [L50] var_1_13 = ((((((((2.625) > (var_1_16)) ? (2.625) : (var_1_16)))) < (var_1_17)) ? (((((2.625) > (var_1_16)) ? (2.625) : (var_1_16)))) : (var_1_17))) [L100] RET step() [L101] CALL, EXPR property() [L90-L91] return (((last_1_var_1_10 <= last_1_var_1_10) ? (var_1_1 == ((unsigned short int) (last_1_var_1_10 + ((last_1_var_1_10 + last_1_var_1_10) + (var_1_7 - last_1_var_1_10))))) : (var_1_1 == ((unsigned short int) (var_1_9 - var_1_7)))) && (var_1_11 ? ((((var_1_4 % var_1_9) * var_1_1) >= var_1_7) ? (var_1_10 == ((unsigned char) var_1_12)) : 1) : 1)) && (((last_1_var_1_13 + var_1_15) < 16.75f) ? (var_1_13 == ((double) ((((((((2.625) > (var_1_16)) ? (2.625) : (var_1_16)))) < (var_1_17)) ? (((((2.625) > (var_1_16)) ? (2.625) : (var_1_16)))) : (var_1_17))))) : (((var_1_17 / var_1_18) <= 49.6) ? (var_1_13 == ((double) var_1_17)) : (var_1_13 == ((double) var_1_16)))) ; [L101] RET, EXPR property() [L101] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=2, var_1_16=0, var_1_17=2, var_1_1=8191, var_1_4=32767, var_1_7=8191, var_1_9=32768] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=0, last_1_var_1_13=59/10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=2, var_1_16=0, var_1_17=2, var_1_1=8191, var_1_4=32767, var_1_7=8191, var_1_9=32768] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 15, 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=33occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 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 [2023-12-02 16:34:10,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-66.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh --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 57396a3f6522baf465f10477ff1b4f4e1deccf80d42129ee9d03d8e74cd20ef5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:34:12,180 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:34:12,254 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 16:34:12,260 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:34:12,260 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:34:12,284 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:34:12,284 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:34:12,285 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:34:12,286 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:34:12,287 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:34:12,287 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:34:12,288 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:34:12,288 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:34:12,289 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:34:12,290 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:34:12,290 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:34:12,291 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:34:12,292 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:34:12,293 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:34:12,293 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:34:12,294 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:34:12,294 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:34:12,295 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:34:12,295 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:34:12,296 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 16:34:12,296 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 16:34:12,296 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 16:34:12,297 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:34:12,297 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:34:12,298 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:34:12,298 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:34:12,298 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 16:34:12,299 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:34:12,299 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:34:12,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:34:12,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:34:12,300 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:34:12,300 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:34:12,300 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 16:34:12,300 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 16:34:12,300 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:34:12,301 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:34:12,301 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:34:12,301 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:34:12,301 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_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57396a3f6522baf465f10477ff1b4f4e1deccf80d42129ee9d03d8e74cd20ef5 [2023-12-02 16:34:12,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:34:12,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:34:12,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:34:12,604 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:34:12,605 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:34:12,606 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-66.i [2023-12-02 16:34:15,365 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:34:15,555 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:34:15,555 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-66.i [2023-12-02 16:34:15,563 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/data/a207cba79/91c70a83adae4a38a5faf263fe33d9bc/FLAG85b891306 [2023-12-02 16:34:15,576 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/data/a207cba79/91c70a83adae4a38a5faf263fe33d9bc [2023-12-02 16:34:15,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:34:15,579 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:34:15,580 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:34:15,580 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:34:15,584 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:34:15,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:34:15" (1/1) ... [2023-12-02 16:34:15,586 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a4b9d4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:15, skipping insertion in model container [2023-12-02 16:34:15,586 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:34:15" (1/1) ... [2023-12-02 16:34:15,609 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:34:15,724 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_9babcab1-4342-468b-a4b7-87ed139ef449/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-66.i[915,928] [2023-12-02 16:34:15,760 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:34:15,774 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:34:15,784 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_9babcab1-4342-468b-a4b7-87ed139ef449/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-66.i[915,928] [2023-12-02 16:34:15,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:34:15,833 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:34:15,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:15 WrapperNode [2023-12-02 16:34:15,834 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:34:15,834 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:34:15,834 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:34:15,835 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:34:15,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:15" (1/1) ... [2023-12-02 16:34:15,850 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:15" (1/1) ... [2023-12-02 16:34:15,874 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 108 [2023-12-02 16:34:15,874 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:34:15,875 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:34:15,875 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:34:15,875 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:34:15,882 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:15" (1/1) ... [2023-12-02 16:34:15,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:15" (1/1) ... [2023-12-02 16:34:15,887 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:15" (1/1) ... [2023-12-02 16:34:15,887 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:15" (1/1) ... [2023-12-02 16:34:15,896 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:15" (1/1) ... [2023-12-02 16:34:15,899 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:15" (1/1) ... [2023-12-02 16:34:15,902 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:15" (1/1) ... [2023-12-02 16:34:15,904 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:15" (1/1) ... [2023-12-02 16:34:15,908 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:34:15,909 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:34:15,909 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:34:15,909 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:34:15,910 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:15" (1/1) ... [2023-12-02 16:34:15,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:34:15,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:34:15,935 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:34:15,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:34:15,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:34:15,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 16:34:15,980 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 16:34:15,981 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 16:34:15,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:34:15,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:34:16,064 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:34:16,067 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:34:23,566 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:34:23,614 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:34:23,614 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:34:23,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:34:23 BoogieIcfgContainer [2023-12-02 16:34:23,614 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:34:23,617 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:34:23,617 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:34:23,619 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:34:23,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:34:15" (1/3) ... [2023-12-02 16:34:23,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a4952d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:34:23, skipping insertion in model container [2023-12-02 16:34:23,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:34:15" (2/3) ... [2023-12-02 16:34:23,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a4952d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:34:23, skipping insertion in model container [2023-12-02 16:34:23,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:34:23" (3/3) ... [2023-12-02 16:34:23,622 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-66.i [2023-12-02 16:34:23,643 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:34:23,643 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:34:23,681 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:34:23,686 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;@1f6618ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:34:23,687 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:34:23,691 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 25 states have internal predecessors, (34), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 16:34:23,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-02 16:34:23,704 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:34:23,705 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:34:23,706 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:34:23,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:34:23,712 INFO L85 PathProgramCache]: Analyzing trace with hash 142787628, now seen corresponding path program 1 times [2023-12-02 16:34:23,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:34:23,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947520274] [2023-12-02 16:34:23,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:34:23,726 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 [2023-12-02 16:34:23,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:34:23,732 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 16:34:23,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9babcab1-4342-468b-a4b7-87ed139ef449/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 16:34:24,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:34:24,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 16:34:24,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:35:07,041 WARN L293 SmtUtils]: Spent 8.28s on a formula simplification that was a NOOP. DAG size: 73 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)