./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-12.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-12.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2 --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 aa1e77145a453bb1c8c30584a939ce2ad6e9e6ba71078979a914a9b565af9d38 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:25:07,781 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:25:07,885 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 11:25:07,890 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:25:07,891 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:25:07,925 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:25:07,925 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:25:07,926 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:25:07,928 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:25:07,929 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:25:07,931 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:25:07,932 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:25:07,932 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:25:07,933 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 11:25:07,933 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:25:07,933 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:25:07,934 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 11:25:07,934 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 11:25:07,937 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:25:07,937 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 11:25:07,937 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 11:25:07,938 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 11:25:07,939 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:25:07,939 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:25:07,940 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:25:07,940 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 11:25:07,940 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:25:07,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:25:07,941 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:25:07,941 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:25:07,941 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:25:07,942 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:25:07,942 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:25:07,942 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:25:07,942 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:25:07,943 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:25:07,943 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:25:07,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:25:07,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:25:07,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:25:07,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:25:07,944 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:25:07,945 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 11:25:07,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 11:25:07,945 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:25:07,946 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:25:07,946 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:25:07,946 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_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa1e77145a453bb1c8c30584a939ce2ad6e9e6ba71078979a914a9b565af9d38 [2024-11-02 11:25:08,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:25:08,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:25:08,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:25:08,330 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:25:08,330 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:25:08,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-12.i Unable to find full path for "g++" [2024-11-02 11:25:10,597 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:25:10,857 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:25:10,859 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-12.i [2024-11-02 11:25:10,875 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/data/03eea41b6/dd887e9860734b2c9cdb3bb074603336/FLAG850e2572b [2024-11-02 11:25:10,893 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/data/03eea41b6/dd887e9860734b2c9cdb3bb074603336 [2024-11-02 11:25:10,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:25:10,897 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:25:10,899 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:25:10,899 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:25:10,906 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:25:10,907 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:25:10" (1/1) ... [2024-11-02 11:25:10,908 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e21987f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:10, skipping insertion in model container [2024-11-02 11:25:10,909 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:25:10" (1/1) ... [2024-11-02 11:25:10,942 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:25:11,209 WARN L251 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_3c94adad-9846-469b-ade7-12d60594d7d6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-12.i[915,928] [2024-11-02 11:25:11,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:25:11,311 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:25:11,328 WARN L251 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_3c94adad-9846-469b-ade7-12d60594d7d6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-12.i[915,928] [2024-11-02 11:25:11,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:25:11,394 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:25:11,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:11 WrapperNode [2024-11-02 11:25:11,396 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:25:11,397 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:25:11,397 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:25:11,397 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:25:11,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:11" (1/1) ... [2024-11-02 11:25:11,420 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:11" (1/1) ... [2024-11-02 11:25:11,467 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2024-11-02 11:25:11,468 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:25:11,471 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:25:11,471 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:25:11,472 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:25:11,482 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:11" (1/1) ... [2024-11-02 11:25:11,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:11" (1/1) ... [2024-11-02 11:25:11,485 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:11" (1/1) ... [2024-11-02 11:25:11,485 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:11" (1/1) ... [2024-11-02 11:25:11,496 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:11" (1/1) ... [2024-11-02 11:25:11,503 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:11" (1/1) ... [2024-11-02 11:25:11,504 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:11" (1/1) ... [2024-11-02 11:25:11,506 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:11" (1/1) ... [2024-11-02 11:25:11,509 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:25:11,510 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:25:11,510 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:25:11,510 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:25:11,512 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:11" (1/1) ... [2024-11-02 11:25:11,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:25:11,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:25:11,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:25:11,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:25:11,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:25:11,605 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 11:25:11,605 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 11:25:11,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 11:25:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:25:11,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:25:11,689 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:25:11,691 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:25:11,987 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-02 11:25:11,987 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:25:12,167 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:25:12,167 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 11:25:12,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:25:12 BoogieIcfgContainer [2024-11-02 11:25:12,168 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:25:12,172 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:25:12,172 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:25:12,176 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:25:12,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:25:10" (1/3) ... [2024-11-02 11:25:12,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b655372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:25:12, skipping insertion in model container [2024-11-02 11:25:12,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:11" (2/3) ... [2024-11-02 11:25:12,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b655372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:25:12, skipping insertion in model container [2024-11-02 11:25:12,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:25:12" (3/3) ... [2024-11-02 11:25:12,180 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-12.i [2024-11-02 11:25:12,201 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:25:12,201 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 11:25:12,261 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:25:12,271 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@640c2005, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:25:12,272 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 11:25:12,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-02 11:25:12,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-02 11:25:12,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:12,289 INFO L215 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:12,292 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:25:12,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:12,298 INFO L85 PathProgramCache]: Analyzing trace with hash -351856985, now seen corresponding path program 1 times [2024-11-02 11:25:12,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:25:12,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528624105] [2024-11-02 11:25:12,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:12,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:25:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 11:25:12,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [870326983] [2024-11-02 11:25:12,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:12,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:25:12,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:25:12,669 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:25:12,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 11:25:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 11:25:12,826 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 11:25:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 11:25:12,938 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 11:25:12,941 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 11:25:12,944 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 11:25:12,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-02 11:25:13,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:25:13,151 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 11:25:13,209 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 11:25:13,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:25:13 BoogieIcfgContainer [2024-11-02 11:25:13,213 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 11:25:13,214 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 11:25:13,214 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 11:25:13,214 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 11:25:13,215 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:25:12" (3/4) ... [2024-11-02 11:25:13,218 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 11:25:13,223 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 11:25:13,224 INFO L158 Benchmark]: Toolchain (without parser) took 2326.76ms. Allocated memory was 167.8MB in the beginning and 216.0MB in the end (delta: 48.2MB). Free memory was 128.8MB in the beginning and 161.2MB in the end (delta: -32.4MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2024-11-02 11:25:13,225 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:25:13,226 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.50ms. Allocated memory is still 167.8MB. Free memory was 128.8MB in the beginning and 114.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-02 11:25:13,230 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.52ms. Allocated memory is still 167.8MB. Free memory was 114.6MB in the beginning and 112.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 11:25:13,231 INFO L158 Benchmark]: Boogie Preprocessor took 38.03ms. Allocated memory is still 167.8MB. Free memory was 112.1MB in the beginning and 110.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:25:13,232 INFO L158 Benchmark]: RCFGBuilder took 657.90ms. Allocated memory is still 167.8MB. Free memory was 110.4MB in the beginning and 84.3MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-02 11:25:13,233 INFO L158 Benchmark]: TraceAbstraction took 1041.05ms. Allocated memory was 167.8MB in the beginning and 216.0MB in the end (delta: 48.2MB). Free memory was 83.6MB in the beginning and 161.2MB in the end (delta: -77.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:25:13,233 INFO L158 Benchmark]: Witness Printer took 9.13ms. Allocated memory is still 216.0MB. Free memory is still 161.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:25:13,237 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 497.50ms. Allocated memory is still 167.8MB. Free memory was 128.8MB in the beginning and 114.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.52ms. Allocated memory is still 167.8MB. Free memory was 114.6MB in the beginning and 112.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.03ms. Allocated memory is still 167.8MB. Free memory was 112.1MB in the beginning and 110.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 657.90ms. Allocated memory is still 167.8MB. Free memory was 110.4MB in the beginning and 84.3MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1041.05ms. Allocated memory was 167.8MB in the beginning and 216.0MB in the end (delta: 48.2MB). Free memory was 83.6MB in the beginning and 161.2MB in the end (delta: -77.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 9.13ms. Allocated memory is still 216.0MB. Free memory is still 161.2MB. 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 61, overapproximation of someBinaryArithmeticFLOAToperation at line 61. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] signed long int var_1_2 = -8; [L24] signed long int var_1_3 = 128; [L25] unsigned char var_1_5 = 0; [L26] float var_1_6 = 128.625; [L27] float var_1_7 = 2.625; [L28] float var_1_8 = 25.5; [L29] float var_1_9 = 4.75; [L30] float var_1_10 = 16.4; [L31] float var_1_11 = 0.2; [L32] float var_1_12 = 499.1; [L33] unsigned char var_1_13 = 0; [L34] signed long int var_1_14 = -8; [L35] unsigned char var_1_15 = 1; [L36] unsigned char last_1_var_1_13 = 0; [L101] isInitial = 1 [L102] FCALL initially() [L103] COND TRUE 1 [L104] CALL updateLastVariables() [L94] last_1_var_1_13 = var_1_13 [L104] RET updateLastVariables() [L105] CALL updateVariables() [L66] var_1_2 = __VERIFIER_nondet_long() [L67] CALL assume_abort_if_not(var_1_2 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=0, var_1_10=82/5, var_1_11=1/5, var_1_12=4991/10, var_1_13=0, var_1_14=-8, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=128, var_1_5=0, var_1_6=1029/8, var_1_7=21/8, var_1_8=51/2, var_1_9=19/4] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_2 >= -2147483648) VAL [isInitial=1, last_1_var_1_13=0, var_1_10=82/5, var_1_11=1/5, var_1_12=4991/10, var_1_13=0, var_1_14=-8, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=128, var_1_5=0, var_1_6=1029/8, var_1_7=21/8, var_1_8=51/2, var_1_9=19/4] [L68] CALL assume_abort_if_not(var_1_2 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=0, var_1_10=82/5, var_1_11=1/5, var_1_12=4991/10, var_1_13=0, var_1_14=-8, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=128, var_1_5=0, var_1_6=1029/8, var_1_7=21/8, var_1_8=51/2, var_1_9=19/4] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_2 <= 2147483647) VAL [isInitial=1, last_1_var_1_13=0, var_1_10=82/5, var_1_11=1/5, var_1_12=4991/10, var_1_13=0, var_1_14=-8, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=128, var_1_5=0, var_1_6=1029/8, var_1_7=21/8, var_1_8=51/2, var_1_9=19/4] [L69] var_1_3 = __VERIFIER_nondet_long() [L70] CALL assume_abort_if_not(var_1_3 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=0, var_1_10=82/5, var_1_11=1/5, var_1_12=4991/10, var_1_13=0, var_1_14=-8, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8, var_1_7=21/8, var_1_8=51/2, var_1_9=19/4] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_3 >= -2147483648) VAL [isInitial=1, last_1_var_1_13=0, var_1_10=82/5, var_1_11=1/5, var_1_12=4991/10, var_1_13=0, var_1_14=-8, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8, var_1_7=21/8, var_1_8=51/2, var_1_9=19/4] [L71] CALL assume_abort_if_not(var_1_3 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=0, var_1_10=82/5, var_1_11=1/5, var_1_12=4991/10, var_1_13=0, var_1_14=-8, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8, var_1_7=21/8, var_1_8=51/2, var_1_9=19/4] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_3 <= 2147483647) VAL [isInitial=1, last_1_var_1_13=0, var_1_10=82/5, var_1_11=1/5, var_1_12=4991/10, var_1_13=0, var_1_14=-8, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8, var_1_7=21/8, var_1_8=51/2, var_1_9=19/4] [L72] var_1_5 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=0, var_1_10=82/5, var_1_11=1/5, var_1_12=4991/10, var_1_13=0, var_1_14=-8, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_6=1029/8, var_1_7=21/8, var_1_8=51/2, var_1_9=19/4] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_13=0, var_1_10=82/5, var_1_11=1/5, var_1_12=4991/10, var_1_13=0, var_1_14=-8, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_6=1029/8, var_1_7=21/8, var_1_8=51/2, var_1_9=19/4] [L74] CALL assume_abort_if_not(var_1_5 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=0, var_1_10=82/5, var_1_11=1/5, var_1_12=4991/10, var_1_13=0, var_1_14=-8, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8, var_1_7=21/8, var_1_8=51/2, var_1_9=19/4] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_5 <= 0) VAL [isInitial=1, last_1_var_1_13=0, var_1_10=82/5, var_1_11=1/5, var_1_12=4991/10, var_1_13=0, var_1_14=-8, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8, var_1_7=21/8, var_1_8=51/2, var_1_9=19/4] [L75] var_1_7 = __VERIFIER_nondet_float() [L76] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=0, var_1_10=82/5, var_1_11=1/5, var_1_12=4991/10, var_1_13=0, var_1_14=-8, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8, var_1_8=51/2, var_1_9=19/4] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=0, var_1_10=82/5, var_1_11=1/5, var_1_12=4991/10, var_1_13=0, var_1_14=-8, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8, var_1_8=51/2, var_1_9=19/4] [L77] var_1_8 = __VERIFIER_nondet_float() [L78] CALL assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=0, var_1_10=82/5, var_1_11=1/5, var_1_12=4991/10, var_1_13=0, var_1_14=-8, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8, var_1_9=19/4] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=0, var_1_10=82/5, var_1_11=1/5, var_1_12=4991/10, var_1_13=0, var_1_14=-8, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8, var_1_9=19/4] [L79] var_1_9 = __VERIFIER_nondet_float() [L80] CALL assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=0, var_1_10=82/5, var_1_11=1/5, var_1_12=4991/10, var_1_13=0, var_1_14=-8, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=0, var_1_10=82/5, var_1_11=1/5, var_1_12=4991/10, var_1_13=0, var_1_14=-8, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8] [L81] var_1_10 = __VERIFIER_nondet_float() [L82] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=0, var_1_11=1/5, var_1_12=4991/10, var_1_13=0, var_1_14=-8, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=0, var_1_11=1/5, var_1_12=4991/10, var_1_13=0, var_1_14=-8, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8] [L83] var_1_12 = __VERIFIER_nondet_float() [L84] CALL assume_abort_if_not((var_1_12 >= -461168.6018427382800e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=0, var_1_11=1/5, var_1_13=0, var_1_14=-8, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not((var_1_12 >= -461168.6018427382800e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=0, var_1_11=1/5, var_1_13=0, var_1_14=-8, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8] [L85] var_1_14 = __VERIFIER_nondet_long() [L86] CALL assume_abort_if_not(var_1_14 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=0, var_1_11=1/5, var_1_13=0, var_1_14=1, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_14 >= -2147483648) VAL [isInitial=1, last_1_var_1_13=0, var_1_11=1/5, var_1_13=0, var_1_14=1, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8] [L87] CALL assume_abort_if_not(var_1_14 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=0, var_1_11=1/5, var_1_13=0, var_1_14=1, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_14 <= 2147483647) VAL [isInitial=1, last_1_var_1_13=0, var_1_11=1/5, var_1_13=0, var_1_14=1, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8] [L88] CALL assume_abort_if_not(var_1_14 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=0, var_1_11=1/5, var_1_13=0, var_1_14=1, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_14 != 0) VAL [isInitial=1, last_1_var_1_13=0, var_1_11=1/5, var_1_13=0, var_1_14=1, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8] [L89] var_1_15 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_15 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=0, var_1_11=1/5, var_1_13=0, var_1_14=1, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_15 >= 1) VAL [isInitial=1, last_1_var_1_13=0, var_1_11=1/5, var_1_13=0, var_1_14=1, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8] [L91] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=0, var_1_11=1/5, var_1_13=0, var_1_14=1, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, last_1_var_1_13=0, var_1_11=1/5, var_1_13=0, var_1_14=1, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8] [L105] RET updateVariables() [L106] CALL step() [L40] signed long int stepLocal_1 = var_1_3; [L41] signed long int stepLocal_0 = var_1_2; [L42] COND FALSE !(! (-50 < var_1_2)) [L51] COND FALSE !(var_1_2 > (var_1_3 / var_1_14)) [L58] var_1_13 = var_1_5 [L60] COND FALSE !(\read(var_1_13)) [L63] var_1_11 = (((((2.5f) < (((((31.75f) > (var_1_12)) ? (31.75f) : (var_1_12))))) ? (2.5f) : (((((31.75f) > (var_1_12)) ? (31.75f) : (var_1_12)))))) + 0.125f) [L106] RET step() [L107] CALL, EXPR property() [L97-L98] return ((((! (-50 < var_1_2)) ? ((var_1_2 != var_1_3) ? ((var_1_3 <= var_1_2) ? (var_1_1 == ((unsigned char) (last_1_var_1_13 && var_1_5))) : 1) : (var_1_1 == ((unsigned char) var_1_5))) : 1) && (var_1_13 ? (var_1_6 == ((float) (((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8))) - var_1_9)) > (var_1_10)) ? ((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8))) - var_1_9)) : (var_1_10))))) : 1)) && (var_1_11 == ((float) (((((2.5f) < (((((31.75f) > (var_1_12)) ? (31.75f) : (var_1_12))))) ? (2.5f) : (((((31.75f) > (var_1_12)) ? (31.75f) : (var_1_12)))))) + 0.125f)))) && ((var_1_2 > (var_1_3 / var_1_14)) ? (var_1_1 ? (var_1_13 == ((unsigned char) (! var_1_15))) : (var_1_13 == ((unsigned char) 0))) : (var_1_13 == ((unsigned char) var_1_5))) ; [L107] RET, EXPR property() [L107] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_13=0, var_1_10=0, var_1_13=0, var_1_14=1, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8] [L19] reach_error() VAL [isInitial=1, last_1_var_1_13=0, var_1_10=0, var_1_13=0, var_1_14=1, var_1_15=1, var_1_1=0, var_1_2=-49, var_1_3=-49, var_1_5=0, var_1_6=1029/8] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-02 11:25:13,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-12.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2 --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 aa1e77145a453bb1c8c30584a939ce2ad6e9e6ba71078979a914a9b565af9d38 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:25:15,814 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:25:15,947 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-02 11:25:15,955 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:25:15,955 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:25:16,008 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:25:16,011 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:25:16,011 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:25:16,012 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:25:16,013 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:25:16,013 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:25:16,013 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:25:16,014 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:25:16,016 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:25:16,016 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:25:16,017 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:25:16,019 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:25:16,019 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:25:16,019 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:25:16,020 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:25:16,020 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:25:16,024 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:25:16,024 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:25:16,025 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:25:16,025 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 11:25:16,025 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 11:25:16,025 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:25:16,026 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 11:25:16,026 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:25:16,026 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:25:16,027 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:25:16,027 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:25:16,030 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 11:25:16,030 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:25:16,031 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:25:16,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:25:16,031 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:25:16,032 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:25:16,032 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:25:16,033 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 11:25:16,033 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 11:25:16,034 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:25:16,034 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:25:16,034 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:25:16,034 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_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa1e77145a453bb1c8c30584a939ce2ad6e9e6ba71078979a914a9b565af9d38 [2024-11-02 11:25:16,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:25:16,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:25:16,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:25:16,595 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:25:16,596 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:25:16,597 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-12.i Unable to find full path for "g++" [2024-11-02 11:25:19,294 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:25:19,617 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:25:19,618 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-12.i [2024-11-02 11:25:19,633 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/data/fa22b094a/d9fe385f69ce4c238228fc9e0f45fdb1/FLAG82027d53f [2024-11-02 11:25:19,657 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/data/fa22b094a/d9fe385f69ce4c238228fc9e0f45fdb1 [2024-11-02 11:25:19,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:25:19,664 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:25:19,668 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:25:19,668 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:25:19,675 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:25:19,676 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:25:19" (1/1) ... [2024-11-02 11:25:19,677 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b0239fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:19, skipping insertion in model container [2024-11-02 11:25:19,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:25:19" (1/1) ... [2024-11-02 11:25:19,721 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:25:20,037 WARN L251 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_3c94adad-9846-469b-ade7-12d60594d7d6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-12.i[915,928] [2024-11-02 11:25:20,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:25:20,199 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:25:20,238 WARN L251 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_3c94adad-9846-469b-ade7-12d60594d7d6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-12.i[915,928] [2024-11-02 11:25:20,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:25:20,349 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:25:20,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:20 WrapperNode [2024-11-02 11:25:20,351 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:25:20,352 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:25:20,353 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:25:20,353 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:25:20,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:20" (1/1) ... [2024-11-02 11:25:20,386 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:20" (1/1) ... [2024-11-02 11:25:20,441 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 111 [2024-11-02 11:25:20,442 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:25:20,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:25:20,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:25:20,447 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:25:20,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:20" (1/1) ... [2024-11-02 11:25:20,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:20" (1/1) ... [2024-11-02 11:25:20,467 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:20" (1/1) ... [2024-11-02 11:25:20,471 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:20" (1/1) ... [2024-11-02 11:25:20,492 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:20" (1/1) ... [2024-11-02 11:25:20,500 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:20" (1/1) ... [2024-11-02 11:25:20,507 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:20" (1/1) ... [2024-11-02 11:25:20,510 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:20" (1/1) ... [2024-11-02 11:25:20,521 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:25:20,523 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:25:20,526 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:25:20,527 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:25:20,528 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:20" (1/1) ... [2024-11-02 11:25:20,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:25:20,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:25:20,578 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:25:20,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:25:20,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:25:20,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 11:25:20,626 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 11:25:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 11:25:20,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:25:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:25:20,743 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:25:20,748 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:25:21,700 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-02 11:25:21,701 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:25:21,722 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:25:21,723 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 11:25:21,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:25:21 BoogieIcfgContainer [2024-11-02 11:25:21,724 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:25:21,728 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:25:21,729 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:25:21,734 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:25:21,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:25:19" (1/3) ... [2024-11-02 11:25:21,736 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69084ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:25:21, skipping insertion in model container [2024-11-02 11:25:21,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:20" (2/3) ... [2024-11-02 11:25:21,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69084ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:25:21, skipping insertion in model container [2024-11-02 11:25:21,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:25:21" (3/3) ... [2024-11-02 11:25:21,740 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-12.i [2024-11-02 11:25:21,765 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:25:21,765 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 11:25:21,875 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:25:21,886 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@74a58714, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:25:21,886 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 11:25:21,893 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-02 11:25:21,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-02 11:25:21,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:21,912 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:21,912 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:25:21,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:21,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1297832078, now seen corresponding path program 1 times [2024-11-02 11:25:21,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 11:25:21,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1111664778] [2024-11-02 11:25:21,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:21,941 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-02 11:25:21,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 11:25:21,970 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-02 11:25:21,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-02 11:25:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:22,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 11:25:22,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:25:22,581 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 206 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-02 11:25:22,581 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 11:25:22,582 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 11:25:22,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1111664778] [2024-11-02 11:25:22,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1111664778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:25:22,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:25:22,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 11:25:22,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317687361] [2024-11-02 11:25:22,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:25:22,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 11:25:22,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 11:25:22,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 11:25:22,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 11:25:22,640 INFO L87 Difference]: Start difference. First operand has 52 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-02 11:25:22,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:22,687 INFO L93 Difference]: Finished difference Result 97 states and 162 transitions. [2024-11-02 11:25:22,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 11:25:22,691 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 103 [2024-11-02 11:25:22,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:22,703 INFO L225 Difference]: With dead ends: 97 [2024-11-02 11:25:22,704 INFO L226 Difference]: Without dead ends: 48 [2024-11-02 11:25:22,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 11:25:22,718 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 11:25:22,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 11:25:22,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-02 11:25:22,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-02 11:25:22,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-02 11:25:22,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 69 transitions. [2024-11-02 11:25:22,791 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 69 transitions. Word has length 103 [2024-11-02 11:25:22,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:22,793 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 69 transitions. [2024-11-02 11:25:22,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-02 11:25:22,794 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 69 transitions. [2024-11-02 11:25:22,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-02 11:25:22,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:22,798 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:22,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-02 11:25:23,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-02 11:25:23,002 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:25:23,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:23,004 INFO L85 PathProgramCache]: Analyzing trace with hash -431060418, now seen corresponding path program 1 times [2024-11-02 11:25:23,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 11:25:23,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [86471435] [2024-11-02 11:25:23,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:23,007 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-02 11:25:23,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 11:25:23,014 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-02 11:25:23,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-02 11:25:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:23,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 11:25:23,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:25:24,190 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 225 proven. 30 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-02 11:25:24,190 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 11:25:24,593 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 30 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-02 11:25:24,596 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 11:25:24,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [86471435] [2024-11-02 11:25:24,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [86471435] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 11:25:24,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [878918232] [2024-11-02 11:25:24,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:24,597 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-02 11:25:24,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/cvc4 [2024-11-02 11:25:24,602 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-02 11:25:24,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-02 11:25:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:25,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-02 11:25:25,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:25:26,428 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 225 proven. 30 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-02 11:25:26,430 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 11:25:26,812 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 30 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-02 11:25:26,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [878918232] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 11:25:26,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383279165] [2024-11-02 11:25:26,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:26,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:25:26,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:25:26,816 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:25:26,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-02 11:25:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:26,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 11:25:26,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:25:27,260 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 225 proven. 30 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-02 11:25:27,261 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 11:25:27,651 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 30 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-02 11:25:27,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383279165] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 11:25:27,652 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-02 11:25:27,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 8 [2024-11-02 11:25:27,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628389536] [2024-11-02 11:25:27,654 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-02 11:25:27,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-02 11:25:27,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 11:25:27,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-02 11:25:27,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-02 11:25:27,658 INFO L87 Difference]: Start difference. First operand 48 states and 69 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-02 11:25:29,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:29,111 INFO L93 Difference]: Finished difference Result 154 states and 215 transitions. [2024-11-02 11:25:29,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-02 11:25:29,112 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 103 [2024-11-02 11:25:29,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:29,116 INFO L225 Difference]: With dead ends: 154 [2024-11-02 11:25:29,116 INFO L226 Difference]: Without dead ends: 109 [2024-11-02 11:25:29,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 624 GetRequests, 604 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2024-11-02 11:25:29,119 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 92 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:25:29,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 140 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-02 11:25:29,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-02 11:25:29,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 53. [2024-11-02 11:25:29,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 34 states have internal predecessors, (41), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-02 11:25:29,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 73 transitions. [2024-11-02 11:25:29,149 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 73 transitions. Word has length 103 [2024-11-02 11:25:29,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:29,151 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 73 transitions. [2024-11-02 11:25:29,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-02 11:25:29,152 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 73 transitions. [2024-11-02 11:25:29,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-02 11:25:29,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:29,156 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:29,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-02 11:25:29,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-02 11:25:29,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/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)] Forceful destruction successful, exit code 0 [2024-11-02 11:25:29,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-02 11:25:29,761 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:25:29,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:29,762 INFO L85 PathProgramCache]: Analyzing trace with hash -373802116, now seen corresponding path program 1 times [2024-11-02 11:25:29,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 11:25:29,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [847285485] [2024-11-02 11:25:29,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:29,764 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-02 11:25:29,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 11:25:29,767 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-02 11:25:29,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c94adad-9846-469b-ade7-12d60594d7d6/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-02 11:25:30,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:30,090 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-02 11:25:30,095 INFO L278 TraceCheckSpWp]: Computing forward predicates...