./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7a26da9ee2780f5d9a0a4d48e71eedd7b2efc6ac4df03b63ed45f991a1f4f81b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:30:31,780 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:30:31,872 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:30:31,878 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:30:31,879 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:30:31,904 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:30:31,905 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:30:31,906 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:30:31,906 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:30:31,907 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:30:31,908 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:30:31,908 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:30:31,909 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:30:31,910 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:30:31,910 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:30:31,911 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:30:31,912 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:30:31,912 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:30:31,913 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:30:31,913 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:30:31,914 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:30:31,915 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:30:31,916 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:30:31,916 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:30:31,917 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:30:31,917 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:30:31,918 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:30:31,918 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:30:31,919 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:30:31,919 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:30:31,919 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:30:31,920 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:30:31,920 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:30:31,921 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:30:31,921 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:30:31,921 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:30:31,922 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:30:31,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:31,922 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:30:31,923 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:30:31,923 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:30:31,923 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:30:31,924 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:30:31,924 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:30:31,924 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:30:31,924 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:30:31,925 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:30:31,925 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_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a26da9ee2780f5d9a0a4d48e71eedd7b2efc6ac4df03b63ed45f991a1f4f81b [2023-11-23 21:30:32,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:30:32,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:30:32,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:30:32,337 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:30:32,338 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:30:32,339 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-5.i [2023-11-23 21:30:35,662 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:30:35,922 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:30:35,922 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-5.i [2023-11-23 21:30:35,954 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/data/b6f41284d/22ed0264a5cd417d9951a4210e30fb88/FLAG50f560983 [2023-11-23 21:30:35,975 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/data/b6f41284d/22ed0264a5cd417d9951a4210e30fb88 [2023-11-23 21:30:35,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:30:35,981 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:30:35,982 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:35,983 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:30:35,992 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:30:35,993 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:35" (1/1) ... [2023-11-23 21:30:35,995 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fcd07b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:35, skipping insertion in model container [2023-11-23 21:30:35,995 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:35" (1/1) ... [2023-11-23 21:30:36,034 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:30:36,191 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-5.i[918,931] [2023-11-23 21:30:36,288 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:36,302 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:30:36,316 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-5.i[918,931] [2023-11-23 21:30:36,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:36,410 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:30:36,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36 WrapperNode [2023-11-23 21:30:36,411 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:36,412 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:36,413 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:30:36,413 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:30:36,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (1/1) ... [2023-11-23 21:30:36,435 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (1/1) ... [2023-11-23 21:30:36,513 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 169 [2023-11-23 21:30:36,513 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:36,514 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:30:36,514 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:30:36,514 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:30:36,524 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (1/1) ... [2023-11-23 21:30:36,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (1/1) ... [2023-11-23 21:30:36,530 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (1/1) ... [2023-11-23 21:30:36,530 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (1/1) ... [2023-11-23 21:30:36,546 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (1/1) ... [2023-11-23 21:30:36,550 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (1/1) ... [2023-11-23 21:30:36,554 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (1/1) ... [2023-11-23 21:30:36,557 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (1/1) ... [2023-11-23 21:30:36,563 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:30:36,565 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:30:36,565 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:30:36,565 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:30:36,566 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (1/1) ... [2023-11-23 21:30:36,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:36,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:30:36,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:30:36,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:30:36,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:30:36,652 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:30:36,652 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:30:36,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:30:36,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:30:36,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:30:36,798 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:30:36,801 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:30:37,291 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:30:37,661 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:30:37,662 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:30:37,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:37 BoogieIcfgContainer [2023-11-23 21:30:37,664 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:30:37,668 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:30:37,669 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:30:37,672 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:30:37,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:30:35" (1/3) ... [2023-11-23 21:30:37,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150beb19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:37, skipping insertion in model container [2023-11-23 21:30:37,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (2/3) ... [2023-11-23 21:30:37,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150beb19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:37, skipping insertion in model container [2023-11-23 21:30:37,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:37" (3/3) ... [2023-11-23 21:30:37,678 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-5.i [2023-11-23 21:30:37,696 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:30:37,697 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:30:37,746 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:30:37,754 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5009a46f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:30:37,754 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:30:37,759 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-23 21:30:37,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-23 21:30:37,770 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:37,771 INFO L195 NwaCegarLoop]: trace histogram [19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:37,772 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:37,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:37,781 INFO L85 PathProgramCache]: Analyzing trace with hash -618758185, now seen corresponding path program 1 times [2023-11-23 21:30:37,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:37,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028726603] [2023-11-23 21:30:37,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:37,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:38,039 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:30:38,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [297009311] [2023-11-23 21:30:38,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:38,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:30:38,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:30:38,048 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:30:38,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:30:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:30:38,875 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:30:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:30:39,076 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:30:39,079 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:30:39,080 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:30:39,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:30:39,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:30:39,295 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:30:39,300 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:30:39,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:30:39 BoogieIcfgContainer [2023-11-23 21:30:39,433 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:30:39,435 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:30:39,436 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:30:39,436 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:30:39,437 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:37" (3/4) ... [2023-11-23 21:30:39,438 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:30:39,439 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:30:39,440 INFO L158 Benchmark]: Toolchain (without parser) took 3459.79ms. Allocated memory is still 132.1MB. Free memory was 91.0MB in the beginning and 82.4MB in the end (delta: 8.6MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2023-11-23 21:30:39,441 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:30:39,441 INFO L158 Benchmark]: CACSL2BoogieTranslator took 429.19ms. Allocated memory is still 132.1MB. Free memory was 91.0MB in the beginning and 75.7MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:30:39,442 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.03ms. Allocated memory is still 132.1MB. Free memory was 75.7MB in the beginning and 70.9MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 21:30:39,443 INFO L158 Benchmark]: Boogie Preprocessor took 49.73ms. Allocated memory is still 132.1MB. Free memory was 70.9MB in the beginning and 68.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:30:39,443 INFO L158 Benchmark]: RCFGBuilder took 1099.27ms. Allocated memory is still 132.1MB. Free memory was 68.3MB in the beginning and 74.3MB in the end (delta: -6.0MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2023-11-23 21:30:39,444 INFO L158 Benchmark]: TraceAbstraction took 1765.40ms. Allocated memory is still 132.1MB. Free memory was 73.6MB in the beginning and 83.2MB in the end (delta: -9.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:30:39,449 INFO L158 Benchmark]: Witness Printer took 4.73ms. Allocated memory is still 132.1MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:30:39,458 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 109.1MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 429.19ms. Allocated memory is still 132.1MB. Free memory was 91.0MB in the beginning and 75.7MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.03ms. Allocated memory is still 132.1MB. Free memory was 75.7MB in the beginning and 70.9MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.73ms. Allocated memory is still 132.1MB. Free memory was 70.9MB in the beginning and 68.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1099.27ms. Allocated memory is still 132.1MB. Free memory was 68.3MB in the beginning and 74.3MB in the end (delta: -6.0MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1765.40ms. Allocated memory is still 132.1MB. Free memory was 73.6MB in the beginning and 83.2MB in the end (delta: -9.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.73ms. Allocated memory is still 132.1MB. Free memory is still 82.4MB. 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 shiftRight at line 87, overapproximation of someBinaryArithmeticDOUBLEoperation at line 83, overapproximation of someUnaryDOUBLEoperation at line 117, overapproximation of someBinaryDOUBLEComparisonOperation at line 53, overapproximation of someBinaryArithmeticFLOAToperation at line 114. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 10; [L23] unsigned char var_1_4 = 128; [L24] unsigned char var_1_5 = 1; [L25] unsigned long int var_1_6 = 5; [L26] unsigned char var_1_9 = 0; [L27] unsigned char var_1_10 = 64; [L28] unsigned char var_1_11 = 64; [L29] unsigned short int var_1_12 = 25; [L30] unsigned short int var_1_14 = 31408; [L31] double var_1_15 = 64.375; [L32] double var_1_16 = 10.85; [L33] double var_1_17 = 128.8; [L34] double var_1_18 = 2.6; [L35] unsigned char var_1_19 = 0; [L36] unsigned char var_1_20 = 0; [L37] signed short int var_1_21 = -64; [L38] signed long int var_1_22 = -32; [L39] signed char var_1_26 = 25; [L40] signed char var_1_27 = 4; [L41] unsigned long int var_1_28 = 32; [L42] signed short int var_1_30 = 5; [L43] unsigned long int var_1_32 = 4; [L44] float var_1_34 = 31.25; [L45] double var_1_39 = 7.4; [L46] signed long int var_1_44 = 25; [L47] unsigned short int last_1_var_1_12 = 25; [L48] double last_1_var_1_15 = 64.375; [L170] isInitial = 1 [L171] FCALL initially() [L172] COND TRUE 1 [L173] CALL updateLastVariables() [L162] last_1_var_1_12 = var_1_12 [L163] last_1_var_1_15 = var_1_15 [L173] RET updateLastVariables() [L174] CALL updateVariables() [L130] var_1_4 = __VERIFIER_nondet_uchar() [L131] CALL assume_abort_if_not(var_1_4 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=64, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=1, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L131] RET assume_abort_if_not(var_1_4 >= 127) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=64, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=1, var_1_6=5, var_1_9=0] [L132] CALL assume_abort_if_not(var_1_4 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=64, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=1, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L132] RET assume_abort_if_not(var_1_4 <= 254) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=64, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=1, var_1_6=5, var_1_9=0] [L133] var_1_5 = __VERIFIER_nondet_uchar() [L134] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=64, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L134] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=64, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_6=5, var_1_9=0] [L135] CALL assume_abort_if_not(var_1_5 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=64, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L135] RET assume_abort_if_not(var_1_5 <= 127) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=64, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L136] var_1_10 = __VERIFIER_nondet_uchar() [L137] CALL assume_abort_if_not(var_1_10 >= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L137] RET assume_abort_if_not(var_1_10 >= 63) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L138] CALL assume_abort_if_not(var_1_10 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L138] RET assume_abort_if_not(var_1_10 <= 127) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L139] var_1_11 = __VERIFIER_nondet_uchar() [L140] CALL assume_abort_if_not(var_1_11 >= 64) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L140] RET assume_abort_if_not(var_1_11 >= 64) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L141] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L141] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L142] var_1_14 = __VERIFIER_nondet_ushort() [L143] CALL assume_abort_if_not(var_1_14 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L143] RET assume_abort_if_not(var_1_14 >= 16383) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L144] CALL assume_abort_if_not(var_1_14 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L144] RET assume_abort_if_not(var_1_14 <= 32767) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L145] var_1_16 = __VERIFIER_nondet_double() [L146] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L147] var_1_17 = __VERIFIER_nondet_double() [L148] CALL assume_abort_if_not((var_1_17 >= -922337.2036854765600e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not((var_1_17 >= -922337.2036854765600e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L149] var_1_18 = __VERIFIER_nondet_double() [L150] CALL assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L150] RET assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L151] var_1_20 = __VERIFIER_nondet_uchar() [L152] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_19=0, var_1_1=10, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_19=0, var_1_1=10, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L153] CALL assume_abort_if_not(var_1_20 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L153] RET assume_abort_if_not(var_1_20 <= 0) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L154] var_1_26 = __VERIFIER_nondet_char() [L155] CALL assume_abort_if_not(var_1_26 >= 16) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=16, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L155] RET assume_abort_if_not(var_1_26 >= 16) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=16, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L156] CALL assume_abort_if_not(var_1_26 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=16, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L156] RET assume_abort_if_not(var_1_26 <= 32) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=16, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L157] var_1_27 = __VERIFIER_nondet_char() [L158] CALL assume_abort_if_not(var_1_27 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=16, var_1_27=6, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L158] RET assume_abort_if_not(var_1_27 >= 0) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=16, var_1_27=6, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L159] CALL assume_abort_if_not(var_1_27 <= 16) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=16, var_1_27=6, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not(var_1_27 <= 16) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=16, var_1_27=6, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=0] [L174] RET updateVariables() [L175] CALL step() [L52] COND FALSE !(last_1_var_1_12 > var_1_4) [L57] COND FALSE !(((- 64) + var_1_6) == var_1_6) [L60] var_1_1 = (((((128) < (var_1_4)) ? (128) : (var_1_4))) - 64) [L62] COND FALSE !(var_1_5 == (var_1_6 / var_1_4)) [L65] var_1_9 = ((var_1_10 + var_1_11) - var_1_5) [L67] var_1_21 = var_1_10 [L68] unsigned long int stepLocal_3 = var_1_6; [L69] unsigned char stepLocal_2 = var_1_4; [L70] COND FALSE !(stepLocal_2 < var_1_1) [L75] unsigned long int stepLocal_0 = (((var_1_6) > (var_1_4)) ? (var_1_6) : (var_1_4)); [L76] COND TRUE ((((var_1_21) < 0 ) ? -(var_1_21) : (var_1_21))) <= stepLocal_0 [L77] var_1_12 = ((var_1_14 - var_1_5) + ((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6)))) [L81] signed long int stepLocal_1 = ~ (var_1_5 * var_1_1); [L82] COND TRUE stepLocal_1 <= var_1_12 [L83] var_1_15 = (((((5.25 - var_1_16)) > (var_1_17)) ? ((5.25 - var_1_16)) : (var_1_17))) [L87] EXPR ((((var_1_12) < (var_1_5)) ? (var_1_12) : (var_1_5))) >> (var_1_26 - var_1_27) [L87] COND FALSE !(var_1_4 <= (((((var_1_12) < (var_1_5)) ? (var_1_12) : (var_1_5))) >> (var_1_26 - var_1_27))) [L90] var_1_22 = var_1_5 [L92] COND FALSE !(8.4 <= var_1_16) [L95] var_1_28 = ((((var_1_1) < 0 ) ? -(var_1_1) : (var_1_1))) [L97] COND TRUE var_1_18 == ((((32.5) < (var_1_17)) ? (32.5) : (var_1_17))) [L98] var_1_30 = var_1_27 [L108] COND FALSE !(\read(var_1_20)) [L111] COND FALSE !(\read(var_1_20)) [L120] COND TRUE -256 < (var_1_4 * 10) [L121] COND FALSE !(var_1_17 >= var_1_16) [L127] var_1_44 = var_1_1 [L175] RET step() [L176] CALL, EXPR property() [L166-L167] return (((((((((- 64) + var_1_6) == var_1_6) ? (var_1_1 == ((unsigned char) (((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) - var_1_5))) : (var_1_1 == ((unsigned char) (((((128) < (var_1_4)) ? (128) : (var_1_4))) - 64)))) && ((last_1_var_1_12 > var_1_4) ? (((- last_1_var_1_15) < last_1_var_1_15) ? (var_1_6 == ((unsigned long int) 10u)) : 1) : 1)) && ((var_1_5 == (var_1_6 / var_1_4)) ? (var_1_9 == ((unsigned char) ((((var_1_5) < (((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) ? (var_1_5) : (((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4)))))))) : (var_1_9 == ((unsigned char) ((var_1_10 + var_1_11) - var_1_5))))) && ((((((var_1_21) < 0 ) ? -(var_1_21) : (var_1_21))) <= ((((var_1_6) > (var_1_4)) ? (var_1_6) : (var_1_4)))) ? (var_1_12 == ((unsigned short int) ((var_1_14 - var_1_5) + ((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6)))))) : (var_1_12 == ((unsigned short int) var_1_6)))) && (((~ (var_1_5 * var_1_1)) <= var_1_12) ? (var_1_15 == ((double) (((((5.25 - var_1_16)) > (var_1_17)) ? ((5.25 - var_1_16)) : (var_1_17))))) : (var_1_15 == ((double) ((((((((var_1_17) < (var_1_16)) ? (var_1_17) : (var_1_16)))) < (var_1_18)) ? (((((var_1_17) < (var_1_16)) ? (var_1_17) : (var_1_16)))) : (var_1_18))))))) && ((var_1_4 < var_1_1) ? ((var_1_6 > var_1_21) ? (var_1_19 == ((unsigned char) var_1_20)) : 1) : 1)) && (var_1_21 == ((signed short int) var_1_10)) ; [L176] RET, EXPR property() [L176] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=16261, var_1_14=16383, var_1_15=2, var_1_16=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=127, var_1_22=127, var_1_26=16, var_1_27=6, var_1_28=64, var_1_30=6, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=64, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=64] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=127, var_1_11=64, var_1_12=16261, var_1_14=16383, var_1_15=2, var_1_16=0, var_1_17=0, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=127, var_1_22=127, var_1_26=16, var_1_27=6, var_1_28=64, var_1_30=6, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=64, var_1_4=128, var_1_5=127, var_1_6=5, var_1_9=64] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 1, TraceHistogramMax: 19, 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=39occurred 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, 0.8s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:30:39,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7a26da9ee2780f5d9a0a4d48e71eedd7b2efc6ac4df03b63ed45f991a1f4f81b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:30:42,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:30:42,511 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:30:42,521 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:30:42,522 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:30:42,563 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:30:42,563 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:30:42,564 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:30:42,565 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:30:42,566 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:30:42,566 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:30:42,567 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:30:42,567 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:30:42,568 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:30:42,569 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:30:42,569 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:30:42,570 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:30:42,571 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:30:42,572 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:30:42,572 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:30:42,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:30:42,574 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:30:42,574 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:30:42,575 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:30:42,575 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:30:42,576 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:30:42,576 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:30:42,577 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:30:42,577 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:30:42,578 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:30:42,578 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:30:42,579 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:30:42,579 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:30:42,579 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:30:42,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:42,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:30:42,580 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:30:42,581 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:30:42,581 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:30:42,581 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:30:42,581 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:30:42,582 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:30:42,582 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:30:42,582 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:30:42,583 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_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a26da9ee2780f5d9a0a4d48e71eedd7b2efc6ac4df03b63ed45f991a1f4f81b [2023-11-23 21:30:42,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:30:42,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:30:42,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:30:42,978 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:30:42,978 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:30:42,980 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-5.i [2023-11-23 21:30:46,482 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:30:46,853 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:30:46,854 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-5.i [2023-11-23 21:30:46,863 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/data/4b9fc5954/9ba4d2df82f841d5aaacc6109675411f/FLAG8bf7ce126 [2023-11-23 21:30:46,877 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/data/4b9fc5954/9ba4d2df82f841d5aaacc6109675411f [2023-11-23 21:30:46,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:30:46,881 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:30:46,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:46,883 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:30:46,888 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:30:46,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:46" (1/1) ... [2023-11-23 21:30:46,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25153fd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:46, skipping insertion in model container [2023-11-23 21:30:46,891 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:46" (1/1) ... [2023-11-23 21:30:46,925 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:30:47,125 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-5.i[918,931] [2023-11-23 21:30:47,202 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:47,220 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:30:47,234 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-5.i[918,931] [2023-11-23 21:30:47,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:47,330 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:30:47,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:47 WrapperNode [2023-11-23 21:30:47,331 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:47,332 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:47,333 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:30:47,333 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:30:47,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:47" (1/1) ... [2023-11-23 21:30:47,384 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:47" (1/1) ... [2023-11-23 21:30:47,438 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 162 [2023-11-23 21:30:47,439 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:47,439 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:30:47,440 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:30:47,440 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:30:47,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:47" (1/1) ... [2023-11-23 21:30:47,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:47" (1/1) ... [2023-11-23 21:30:47,475 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:47" (1/1) ... [2023-11-23 21:30:47,476 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:47" (1/1) ... [2023-11-23 21:30:47,504 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:47" (1/1) ... [2023-11-23 21:30:47,508 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:47" (1/1) ... [2023-11-23 21:30:47,511 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:47" (1/1) ... [2023-11-23 21:30:47,530 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:47" (1/1) ... [2023-11-23 21:30:47,542 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:30:47,543 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:30:47,544 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:30:47,544 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:30:47,545 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:47" (1/1) ... [2023-11-23 21:30:47,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:47,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:30:47,588 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:30:47,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:30:47,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:30:47,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:30:47,642 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:30:47,642 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:30:47,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:30:47,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:30:47,784 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:30:47,788 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:30:48,732 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:30:48,807 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:30:48,807 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:30:48,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:48 BoogieIcfgContainer [2023-11-23 21:30:48,808 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:30:48,811 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:30:48,811 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:30:48,815 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:30:48,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:30:46" (1/3) ... [2023-11-23 21:30:48,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31241428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:48, skipping insertion in model container [2023-11-23 21:30:48,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:47" (2/3) ... [2023-11-23 21:30:48,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31241428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:48, skipping insertion in model container [2023-11-23 21:30:48,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:48" (3/3) ... [2023-11-23 21:30:48,828 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-5.i [2023-11-23 21:30:48,847 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:30:48,847 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:30:48,902 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:30:48,910 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@31028233, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:30:48,910 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:30:48,917 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 43 states have (on average 1.558139534883721) internal successors, (67), 44 states have internal predecessors, (67), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-23 21:30:48,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-23 21:30:48,932 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:48,933 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:48,933 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:48,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:48,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1408999872, now seen corresponding path program 1 times [2023-11-23 21:30:48,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:30:48,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1784965211] [2023-11-23 21:30:48,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:48,963 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:30:48,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:30:48,965 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:30:48,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:30:49,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:49,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:30:49,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:30:49,426 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-23 21:30:49,426 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:30:49,427 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:30:49,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1784965211] [2023-11-23 21:30:49,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1784965211] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:49,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:49,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:30:49,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115507969] [2023-11-23 21:30:49,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:49,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:30:49,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:30:49,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:30:49,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:30:49,469 INFO L87 Difference]: Start difference. First operand has 65 states, 43 states have (on average 1.558139534883721) internal successors, (67), 44 states have internal predecessors, (67), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-23 21:30:49,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:49,999 INFO L93 Difference]: Finished difference Result 127 states and 227 transitions. [2023-11-23 21:30:50,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:30:50,011 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 126 [2023-11-23 21:30:50,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:50,019 INFO L225 Difference]: With dead ends: 127 [2023-11-23 21:30:50,020 INFO L226 Difference]: Without dead ends: 63 [2023-11-23 21:30:50,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:30:50,028 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:50,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:30:50,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-23 21:30:50,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-11-23 21:30:50,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 42 states have internal predecessors, (60), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-23 21:30:50,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 98 transitions. [2023-11-23 21:30:50,081 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 98 transitions. Word has length 126 [2023-11-23 21:30:50,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:50,081 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 98 transitions. [2023-11-23 21:30:50,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-23 21:30:50,082 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 98 transitions. [2023-11-23 21:30:50,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-23 21:30:50,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:50,086 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:50,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-23 21:30:50,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:30:50,296 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:50,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:50,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1404721396, now seen corresponding path program 1 times [2023-11-23 21:30:50,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:30:50,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495871108] [2023-11-23 21:30:50,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:50,300 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:30:50,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:30:50,301 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:30:50,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 21:30:50,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:50,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:30:50,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:30:50,836 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-23 21:30:50,836 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:30:50,837 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:30:50,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495871108] [2023-11-23 21:30:50,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495871108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:50,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:50,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:30:50,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488373426] [2023-11-23 21:30:50,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:50,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:30:50,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:30:50,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:30:50,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:50,845 INFO L87 Difference]: Start difference. First operand 63 states and 98 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-23 21:30:51,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:51,601 INFO L93 Difference]: Finished difference Result 125 states and 195 transitions. [2023-11-23 21:30:51,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:30:51,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 127 [2023-11-23 21:30:51,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:51,616 INFO L225 Difference]: With dead ends: 125 [2023-11-23 21:30:51,616 INFO L226 Difference]: Without dead ends: 63 [2023-11-23 21:30:51,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:51,619 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 22 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:51,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 163 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 21:30:51,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-23 21:30:51,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-11-23 21:30:51,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 42 states have internal predecessors, (59), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-23 21:30:51,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 97 transitions. [2023-11-23 21:30:51,637 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 97 transitions. Word has length 127 [2023-11-23 21:30:51,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:51,639 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 97 transitions. [2023-11-23 21:30:51,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-23 21:30:51,640 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 97 transitions. [2023-11-23 21:30:51,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-23 21:30:51,642 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:51,642 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:51,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:30:51,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:30:51,849 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:51,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:51,850 INFO L85 PathProgramCache]: Analyzing trace with hash 703656818, now seen corresponding path program 1 times [2023-11-23 21:30:51,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:30:51,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1326098070] [2023-11-23 21:30:51,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:51,851 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:30:51,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:30:51,854 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:30:51,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 21:30:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:52,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:30:52,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:30:52,503 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 270 proven. 12 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2023-11-23 21:30:52,504 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:30:52,888 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 42 proven. 12 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-11-23 21:30:52,889 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:30:52,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1326098070] [2023-11-23 21:30:52,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1326098070] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:30:52,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1194416499] [2023-11-23 21:30:52,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:52,896 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:30:52,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:30:52,900 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:30:52,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-23 21:30:53,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:53,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:30:53,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:30:53,514 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-23 21:30:53,515 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:30:53,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1194416499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:53,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:30:53,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 8 [2023-11-23 21:30:53,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35595381] [2023-11-23 21:30:53,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:53,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:30:53,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:30:53,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:30:53,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:30:53,519 INFO L87 Difference]: Start difference. First operand 63 states and 97 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-23 21:30:54,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:54,201 INFO L93 Difference]: Finished difference Result 159 states and 241 transitions. [2023-11-23 21:30:54,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:30:54,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 127 [2023-11-23 21:30:54,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:54,205 INFO L225 Difference]: With dead ends: 159 [2023-11-23 21:30:54,205 INFO L226 Difference]: Without dead ends: 97 [2023-11-23 21:30:54,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 371 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:30:54,208 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 49 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:54,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 217 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 21:30:54,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-23 21:30:54,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 94. [2023-11-23 21:30:54,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 59 states have (on average 1.305084745762712) internal successors, (77), 60 states have internal predecessors, (77), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-23 21:30:54,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 141 transitions. [2023-11-23 21:30:54,228 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 141 transitions. Word has length 127 [2023-11-23 21:30:54,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:54,232 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 141 transitions. [2023-11-23 21:30:54,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-23 21:30:54,232 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 141 transitions. [2023-11-23 21:30:54,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-23 21:30:54,235 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:54,235 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:54,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:30:54,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:30:54,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt [2023-11-23 21:30:54,636 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:54,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:54,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1816303116, now seen corresponding path program 1 times [2023-11-23 21:30:54,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:30:54,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [261651007] [2023-11-23 21:30:54,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:54,638 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:30:54,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:30:54,646 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:30:54,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-23 21:30:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:55,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 21:30:55,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:30:57,456 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 162 proven. 96 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2023-11-23 21:30:57,456 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:30:58,953 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:30:58,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [261651007] [2023-11-23 21:30:58,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [261651007] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:30:58,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1388892645] [2023-11-23 21:30:58,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:58,955 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:30:58,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:30:58,960 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:30:58,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-23 21:31:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:00,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 21:31:00,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:31:02,378 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 162 proven. 96 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2023-11-23 21:31:02,379 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:31:03,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1388892645] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:31:03,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559273616] [2023-11-23 21:31:03,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:03,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:31:03,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:31:03,176 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:31:03,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cf6557-ff07-4ece-aa04-4d03f24ef9a9/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 21:31:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:03,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-23 21:31:03,410 INFO L285 TraceCheckSpWp]: Computing forward predicates...