./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-17.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_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/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_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-17.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/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_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/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 152e91bdfeeca351de118ff3a888feb233fa9303b75d50bec7a3322cb6905be6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:09:15,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:09:15,868 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:09:15,878 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:09:15,879 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:09:15,916 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:09:15,917 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:09:15,918 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:09:15,919 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:09:15,924 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:09:15,924 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:09:15,925 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:09:15,926 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:09:15,928 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:09:15,928 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:09:15,929 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:09:15,929 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:09:15,929 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:09:15,930 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:09:15,930 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:09:15,931 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:09:15,931 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:09:15,932 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:09:15,933 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:09:15,933 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:09:15,934 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:09:15,934 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:09:15,934 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:09:15,935 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:09:15,935 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:09:15,937 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:09:15,937 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:09:15,937 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:09:15,937 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:09:15,938 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:09:15,938 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:09:15,938 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:09:15,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:15,939 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:09:15,939 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:09:15,939 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:09:15,940 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:09:15,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:09:15,940 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:09:15,941 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:09:15,941 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:09:15,941 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:09:15,941 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_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 152e91bdfeeca351de118ff3a888feb233fa9303b75d50bec7a3322cb6905be6 [2023-11-23 21:09:16,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:09:16,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:09:16,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:09:16,284 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:09:16,285 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:09:16,286 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-17.i [2023-11-23 21:09:19,417 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:09:19,644 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:09:19,645 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-17.i [2023-11-23 21:09:19,654 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/data/a057b8178/25bfea17d63848da81b63e761a6864a7/FLAGbd37ad1aa [2023-11-23 21:09:19,667 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/data/a057b8178/25bfea17d63848da81b63e761a6864a7 [2023-11-23 21:09:19,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:09:19,670 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:09:19,672 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:19,672 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:09:19,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:09:19,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:19" (1/1) ... [2023-11-23 21:09:19,690 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e9f4df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:19, skipping insertion in model container [2023-11-23 21:09:19,690 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:19" (1/1) ... [2023-11-23 21:09:19,719 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:09:19,887 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_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-17.i[915,928] [2023-11-23 21:09:19,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:19,942 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:09:19,954 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_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-17.i[915,928] [2023-11-23 21:09:19,979 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:19,996 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:09:19,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:19 WrapperNode [2023-11-23 21:09:19,996 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:19,997 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:19,998 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:09:19,998 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:09:20,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:19" (1/1) ... [2023-11-23 21:09:20,015 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:19" (1/1) ... [2023-11-23 21:09:20,045 INFO L138 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 139 [2023-11-23 21:09:20,046 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:20,047 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:09:20,047 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:09:20,047 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:09:20,057 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:19" (1/1) ... [2023-11-23 21:09:20,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:19" (1/1) ... [2023-11-23 21:09:20,059 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:19" (1/1) ... [2023-11-23 21:09:20,060 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:19" (1/1) ... [2023-11-23 21:09:20,067 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:19" (1/1) ... [2023-11-23 21:09:20,071 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:19" (1/1) ... [2023-11-23 21:09:20,073 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:19" (1/1) ... [2023-11-23 21:09:20,075 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:19" (1/1) ... [2023-11-23 21:09:20,078 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:09:20,079 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:09:20,079 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:09:20,079 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:09:20,080 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:19" (1/1) ... [2023-11-23 21:09:20,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:20,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:20,122 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:09:20,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:09:20,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:09:20,163 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:09:20,163 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:09:20,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:09:20,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:09:20,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:09:20,245 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:09:20,248 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:09:20,559 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:09:20,820 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:09:20,821 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:09:20,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:20 BoogieIcfgContainer [2023-11-23 21:09:20,822 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:09:20,825 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:09:20,825 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:09:20,828 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:09:20,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:09:19" (1/3) ... [2023-11-23 21:09:20,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7636f0de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:20, skipping insertion in model container [2023-11-23 21:09:20,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:19" (2/3) ... [2023-11-23 21:09:20,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7636f0de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:20, skipping insertion in model container [2023-11-23 21:09:20,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:20" (3/3) ... [2023-11-23 21:09:20,831 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-17.i [2023-11-23 21:09:20,851 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:09:20,851 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:09:20,901 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:09:20,908 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;@5b965b53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:09:20,909 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:09:20,913 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 21:09:20,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-23 21:09:20,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:20,925 INFO L195 NwaCegarLoop]: trace histogram [23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:20,926 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:20,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:20,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1519043930, now seen corresponding path program 1 times [2023-11-23 21:09:20,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:20,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268118826] [2023-11-23 21:09:20,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:20,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:21,111 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:09:21,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1286664435] [2023-11-23 21:09:21,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:21,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:21,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:21,115 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:09:21,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:09:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:09:21,469 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:09:21,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:09:21,617 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:09:21,620 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:09:21,621 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:09:21,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:09:21,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:09:21,834 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:09:21,838 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:09:21,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:09:21 BoogieIcfgContainer [2023-11-23 21:09:21,956 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:09:21,956 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:09:21,957 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:09:21,957 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:09:21,957 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:20" (3/4) ... [2023-11-23 21:09:21,959 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:09:21,961 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:09:21,962 INFO L158 Benchmark]: Toolchain (without parser) took 2291.30ms. Allocated memory is still 157.3MB. Free memory was 114.3MB in the beginning and 78.4MB in the end (delta: 35.9MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2023-11-23 21:09:21,963 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:09:21,964 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.93ms. Allocated memory is still 157.3MB. Free memory was 114.0MB in the beginning and 101.9MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 21:09:21,965 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.47ms. Allocated memory is still 157.3MB. Free memory was 101.9MB in the beginning and 99.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:09:21,969 INFO L158 Benchmark]: Boogie Preprocessor took 31.47ms. Allocated memory is still 157.3MB. Free memory was 99.6MB in the beginning and 98.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:09:21,970 INFO L158 Benchmark]: RCFGBuilder took 743.75ms. Allocated memory is still 157.3MB. Free memory was 98.1MB in the beginning and 116.2MB in the end (delta: -18.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-23 21:09:21,972 INFO L158 Benchmark]: TraceAbstraction took 1130.78ms. Allocated memory is still 157.3MB. Free memory was 115.6MB in the beginning and 79.0MB in the end (delta: 36.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-23 21:09:21,973 INFO L158 Benchmark]: Witness Printer took 4.22ms. Allocated memory is still 157.3MB. Free memory was 79.0MB in the beginning and 78.4MB in the end (delta: 577.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:09:21,979 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.93ms. Allocated memory is still 157.3MB. Free memory was 114.0MB in the beginning and 101.9MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.47ms. Allocated memory is still 157.3MB. Free memory was 101.9MB in the beginning and 99.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.47ms. Allocated memory is still 157.3MB. Free memory was 99.6MB in the beginning and 98.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 743.75ms. Allocated memory is still 157.3MB. Free memory was 98.1MB in the beginning and 116.2MB in the end (delta: -18.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1130.78ms. Allocated memory is still 157.3MB. Free memory was 115.6MB in the beginning and 79.0MB in the end (delta: 36.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 4.22ms. Allocated memory is still 157.3MB. Free memory was 79.0MB in the beginning and 78.4MB in the end (delta: 577.9kB). 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 someBinaryDOUBLEComparisonOperation at line 42, overapproximation of shiftRight at line 45, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 10000000.8; [L23] double var_1_3 = 16.2; [L24] double var_1_4 = 7.5; [L25] double var_1_5 = 49.6; [L26] signed short int var_1_6 = -10; [L27] unsigned long int var_1_7 = 3280833198; [L28] unsigned long int var_1_8 = 10000000; [L29] signed short int var_1_10 = 1; [L30] signed long int var_1_11 = -32; [L31] double var_1_12 = 128.25; [L32] double var_1_13 = 4.4; [L33] signed long int var_1_14 = -1; [L34] signed long int var_1_15 = 4; [L35] signed long int var_1_16 = 64; [L36] signed long int var_1_17 = 4; [L37] unsigned char var_1_18 = 1; [L38] unsigned char var_1_19 = 1; [L100] isInitial = 1 [L101] FCALL initially() [L102] COND TRUE 1 [L103] FCALL updateLastVariables() [L104] CALL updateVariables() [L56] var_1_3 = __VERIFIER_nondet_double() [L57] CALL assume_abort_if_not((var_1_3 >= -461168.6018427382800e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 4611686.018427382800e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=-32, var_1_12=513/4, var_1_13=22/5, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_4=15/2, var_1_5=248/5, var_1_6=-10, var_1_7=3280833198, var_1_8=10000000] [L20] COND FALSE !(!cond) [L57] RET assume_abort_if_not((var_1_3 >= -461168.6018427382800e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 4611686.018427382800e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=-32, var_1_12=513/4, var_1_13=22/5, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_4=15/2, var_1_5=248/5, var_1_6=-10, var_1_7=3280833198, var_1_8=10000000] [L58] var_1_4 = __VERIFIER_nondet_double() [L59] CALL assume_abort_if_not((var_1_4 >= -461168.6018427382800e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 4611686.018427382800e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=-32, var_1_12=513/4, var_1_13=22/5, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_5=248/5, var_1_6=-10, var_1_7=3280833198, var_1_8=10000000] [L20] COND FALSE !(!cond) [L59] RET assume_abort_if_not((var_1_4 >= -461168.6018427382800e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 4611686.018427382800e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=-32, var_1_12=513/4, var_1_13=22/5, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_5=248/5, var_1_6=-10, var_1_7=3280833198, var_1_8=10000000] [L60] var_1_5 = __VERIFIER_nondet_double() [L61] CALL assume_abort_if_not((var_1_5 >= -230584.3009213691390e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 2305843.009213691390e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=-32, var_1_12=513/4, var_1_13=22/5, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=3280833198, var_1_8=10000000] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not((var_1_5 >= -230584.3009213691390e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 2305843.009213691390e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=-32, var_1_12=513/4, var_1_13=22/5, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=3280833198, var_1_8=10000000] [L62] var_1_7 = __VERIFIER_nondet_ulong() [L63] CALL assume_abort_if_not(var_1_7 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=-32, var_1_12=513/4, var_1_13=22/5, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=10000000] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_7 >= 2147483647) VAL [isInitial=1, var_1_10=1, var_1_11=-32, var_1_12=513/4, var_1_13=22/5, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=10000000] [L64] CALL assume_abort_if_not(var_1_7 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=-32, var_1_12=513/4, var_1_13=22/5, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=10000000] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_7 <= 4294967295) VAL [isInitial=1, var_1_10=1, var_1_11=-32, var_1_12=513/4, var_1_13=22/5, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=10000000] [L65] var_1_8 = __VERIFIER_nondet_ulong() [L66] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=-32, var_1_12=513/4, var_1_13=22/5, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=-32, var_1_12=513/4, var_1_13=22/5, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295] [L67] CALL assume_abort_if_not(var_1_8 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=-32, var_1_12=513/4, var_1_13=22/5, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_8 <= 2147483647) VAL [isInitial=1, var_1_10=1, var_1_11=-32, var_1_12=513/4, var_1_13=22/5, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L68] var_1_10 = __VERIFIER_nondet_short() [L69] CALL assume_abort_if_not(var_1_10 >= -32767) VAL [\old(cond)=1, isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_12=513/4, var_1_13=22/5, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_10 >= -32767) VAL [isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_12=513/4, var_1_13=22/5, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L70] CALL assume_abort_if_not(var_1_10 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_12=513/4, var_1_13=22/5, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_10 <= 32766) VAL [isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_12=513/4, var_1_13=22/5, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L71] var_1_12 = __VERIFIER_nondet_double() [L72] CALL assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_13=22/5, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_13=22/5, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L73] CALL assume_abort_if_not(var_1_12 != 0.0F) VAL [\old(cond)=1, isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_13=22/5, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_12 != 0.0F) VAL [isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_13=22/5, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L74] var_1_13 = __VERIFIER_nondet_double() [L75] CALL assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L76] CALL assume_abort_if_not(var_1_13 != 0.0F) VAL [\old(cond)=1, isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_13 != 0.0F) VAL [isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L77] var_1_14 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_14 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_14 >= -1) VAL [isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L79] CALL assume_abort_if_not(var_1_14 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_14 <= 2147483646) VAL [isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=4, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L80] var_1_15 = __VERIFIER_nondet_long() [L81] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=31, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=31, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L82] CALL assume_abort_if_not(var_1_15 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=31, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_15 <= 2147483646) VAL [isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=31, var_1_16=64, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L83] var_1_16 = __VERIFIER_nondet_long() [L84] CALL assume_abort_if_not(var_1_16 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=31, var_1_16=-1, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_16 >= -1) VAL [isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=31, var_1_16=-1, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L85] CALL assume_abort_if_not(var_1_16 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=31, var_1_16=-1, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_16 <= 2147483646) VAL [isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=31, var_1_16=-1, var_1_17=4, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L86] var_1_17 = __VERIFIER_nondet_long() [L87] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=31, var_1_16=-1, var_1_17=31, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=31, var_1_16=-1, var_1_17=31, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L88] CALL assume_abort_if_not(var_1_17 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=31, var_1_16=-1, var_1_17=31, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_17 <= 2147483646) VAL [isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=31, var_1_16=-1, var_1_17=31, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L89] var_1_19 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_19 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=31, var_1_16=-1, var_1_17=31, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_19 >= 1) VAL [isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=31, var_1_16=-1, var_1_17=31, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L91] CALL assume_abort_if_not(var_1_19 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=31, var_1_16=-1, var_1_17=31, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_19 <= 1) VAL [isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=31, var_1_16=-1, var_1_17=31, var_1_18=1, var_1_19=1, var_1_1=50000004/5, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L104] RET updateVariables() [L105] CALL step() [L42] COND TRUE (var_1_5 * (- var_1_3)) != ((var_1_4 / 255.25) / ((((var_1_12) < (var_1_13)) ? (var_1_12) : (var_1_13)))) [L43] var_1_11 = (((((var_1_14 - var_1_15)) > ((var_1_16 - var_1_17))) ? ((var_1_14 - var_1_15)) : ((var_1_16 - var_1_17)))) [L45] EXPR var_1_15 >> var_1_11 [L45] COND FALSE !(((var_1_15 >> var_1_11) * var_1_7) <= var_1_17) [L48] COND TRUE \read(var_1_18) [L49] var_1_1 = (var_1_3 + ((((var_1_4) < ((49.5 + var_1_5))) ? (var_1_4) : ((49.5 + var_1_5))))) [L51] COND FALSE !((((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7))) - var_1_8) < var_1_11) [L105] RET step() [L106] CALL, EXPR property() [L96] EXPR (((var_1_18 ? (var_1_1 == ((double) (var_1_3 + ((((var_1_4) < ((49.5 + var_1_5))) ? (var_1_4) : ((49.5 + var_1_5))))))) : 1) && (((((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7))) - var_1_8) < var_1_11) ? (var_1_6 == ((signed short int) var_1_10)) : 1)) && (((var_1_5 * (- var_1_3)) != ((var_1_4 / 255.25) / ((((var_1_12) < (var_1_13)) ? (var_1_12) : (var_1_13))))) ? (var_1_11 == ((signed long int) (((((var_1_14 - var_1_15)) > ((var_1_16 - var_1_17))) ? ((var_1_14 - var_1_15)) : ((var_1_16 - var_1_17)))))) : 1)) && ((((var_1_15 >> var_1_11) * var_1_7) <= var_1_17) ? (var_1_18 == ((unsigned char) var_1_19)) : 1) [L96-L97] return (((var_1_18 ? (var_1_1 == ((double) (var_1_3 + ((((var_1_4) < ((49.5 + var_1_5))) ? (var_1_4) : ((49.5 + var_1_5))))))) : 1) && (((((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7))) - var_1_8) < var_1_11) ? (var_1_6 == ((signed short int) var_1_10)) : 1)) && (((var_1_5 * (- var_1_3)) != ((var_1_4 / 255.25) / ((((var_1_12) < (var_1_13)) ? (var_1_12) : (var_1_13))))) ? (var_1_11 == ((signed long int) (((((var_1_14 - var_1_15)) > ((var_1_16 - var_1_17))) ? ((var_1_14 - var_1_15)) : ((var_1_16 - var_1_17)))))) : 1)) && ((((var_1_15 >> var_1_11) * var_1_7) <= var_1_17) ? (var_1_18 == ((unsigned char) var_1_19)) : 1) ; [L106] RET, EXPR property() [L106] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=31, var_1_16=-1, var_1_17=31, var_1_18=1, var_1_19=1, var_1_1=0, var_1_6=-10, var_1_7=4294967295, var_1_8=31] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=-32767, var_1_11=-32, var_1_14=-1, var_1_15=31, var_1_16=-1, var_1_17=31, var_1_18=1, var_1_19=1, var_1_1=0, var_1_6=-10, var_1_7=4294967295, var_1_8=31] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 23, 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=45occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 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 21:09:22,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/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_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/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_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-17.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/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_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/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 152e91bdfeeca351de118ff3a888feb233fa9303b75d50bec7a3322cb6905be6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:09:24,775 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:09:24,909 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:09:24,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:09:24,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:09:24,964 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:09:24,965 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:09:24,966 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:09:24,967 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:09:24,972 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:09:24,972 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:09:24,973 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:09:24,973 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:09:24,975 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:09:24,976 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:09:24,976 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:09:24,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:09:24,978 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:09:24,978 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:09:24,979 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:09:24,980 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:09:24,980 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:09:24,981 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:09:24,981 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:09:24,981 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:09:24,982 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:09:24,982 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:09:24,983 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:09:24,983 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:09:24,984 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:09:24,985 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:09:24,985 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:09:24,986 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:09:24,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:09:24,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:24,987 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:09:24,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:09:24,987 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:09:24,988 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:09:24,989 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:09:24,989 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:09:24,990 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:09:24,990 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:09:24,990 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:09:24,991 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_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 152e91bdfeeca351de118ff3a888feb233fa9303b75d50bec7a3322cb6905be6 [2023-11-23 21:09:25,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:09:25,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:09:25,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:09:25,438 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:09:25,438 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:09:25,439 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-17.i [2023-11-23 21:09:28,582 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:09:28,884 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:09:28,884 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-17.i [2023-11-23 21:09:28,894 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/data/bdcfabead/39c0acc240684cdaa7ef1ac5d28791cb/FLAGaf0d4d1c0 [2023-11-23 21:09:28,907 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/data/bdcfabead/39c0acc240684cdaa7ef1ac5d28791cb [2023-11-23 21:09:28,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:09:28,912 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:09:28,913 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:28,913 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:09:28,919 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:09:28,919 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:28" (1/1) ... [2023-11-23 21:09:28,920 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47ab8209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:28, skipping insertion in model container [2023-11-23 21:09:28,920 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:28" (1/1) ... [2023-11-23 21:09:28,947 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:09:29,136 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_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-17.i[915,928] [2023-11-23 21:09:29,225 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:29,242 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:09:29,265 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_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-17.i[915,928] [2023-11-23 21:09:29,307 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:29,326 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:09:29,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:29 WrapperNode [2023-11-23 21:09:29,326 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:29,327 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:29,328 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:09:29,328 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:09:29,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:29" (1/1) ... [2023-11-23 21:09:29,348 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:29" (1/1) ... [2023-11-23 21:09:29,376 INFO L138 Inliner]: procedures = 27, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 121 [2023-11-23 21:09:29,376 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:29,377 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:09:29,377 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:09:29,378 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:09:29,387 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:29" (1/1) ... [2023-11-23 21:09:29,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:29" (1/1) ... [2023-11-23 21:09:29,392 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:29" (1/1) ... [2023-11-23 21:09:29,393 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:29" (1/1) ... [2023-11-23 21:09:29,403 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:29" (1/1) ... [2023-11-23 21:09:29,407 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:29" (1/1) ... [2023-11-23 21:09:29,409 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:29" (1/1) ... [2023-11-23 21:09:29,411 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:29" (1/1) ... [2023-11-23 21:09:29,416 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:09:29,417 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:09:29,417 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:09:29,417 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:09:29,418 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:29" (1/1) ... [2023-11-23 21:09:29,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:29,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:29,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:09:29,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:09:29,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:09:29,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:09:29,531 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:09:29,532 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:09:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:09:29,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:09:29,653 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:09:29,656 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:09:37,802 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:09:37,855 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:09:37,855 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:09:37,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:37 BoogieIcfgContainer [2023-11-23 21:09:37,856 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:09:37,858 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:09:37,858 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:09:37,861 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:09:37,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:09:28" (1/3) ... [2023-11-23 21:09:37,862 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61236708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:37, skipping insertion in model container [2023-11-23 21:09:37,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:29" (2/3) ... [2023-11-23 21:09:37,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61236708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:37, skipping insertion in model container [2023-11-23 21:09:37,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:37" (3/3) ... [2023-11-23 21:09:37,864 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-17.i [2023-11-23 21:09:37,883 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:09:37,883 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:09:37,931 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:09:37,938 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;@73a70c3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:09:37,939 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:09:37,943 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 21:09:37,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-23 21:09:37,958 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:37,959 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:37,960 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:37,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:37,965 INFO L85 PathProgramCache]: Analyzing trace with hash 347085318, now seen corresponding path program 1 times [2023-11-23 21:09:37,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:09:37,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506374088] [2023-11-23 21:09:37,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:37,982 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 21:09:37,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:09:37,985 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/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 21:09:38,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/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 21:09:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:39,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:09:39,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:39,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2023-11-23 21:09:39,598 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:09:39,598 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:09:39,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506374088] [2023-11-23 21:09:39,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506374088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:39,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:39,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:09:39,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705680854] [2023-11-23 21:09:39,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:39,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:09:39,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:09:39,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:09:39,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:09:39,639 INFO L87 Difference]: Start difference. First operand has 53 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 21:09:42,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:09:42,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:42,335 INFO L93 Difference]: Finished difference Result 103 states and 185 transitions. [2023-11-23 21:09:42,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:09:42,531 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 137 [2023-11-23 21:09:42,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:42,539 INFO L225 Difference]: With dead ends: 103 [2023-11-23 21:09:42,539 INFO L226 Difference]: Without dead ends: 51 [2023-11-23 21:09:42,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 136 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 21:09:42,546 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:42,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 74 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2023-11-23 21:09:42,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-23 21:09:42,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-23 21:09:42,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 21:09:42,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 77 transitions. [2023-11-23 21:09:42,596 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 77 transitions. Word has length 137 [2023-11-23 21:09:42,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:42,597 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 77 transitions. [2023-11-23 21:09:42,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 21:09:42,598 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 77 transitions. [2023-11-23 21:09:42,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-23 21:09:42,602 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:42,602 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:42,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:09:42,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/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 21:09:42,827 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:42,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:42,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1242348428, now seen corresponding path program 1 times [2023-11-23 21:09:42,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:09:42,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [338102921] [2023-11-23 21:09:42,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:42,830 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 21:09:42,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:09:42,831 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/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 21:09:42,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb24fc-537f-4fe5-bb1e-0633ac66b411/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 21:09:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:44,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-23 21:09:44,326 INFO L285 TraceCheckSpWp]: Computing forward predicates...