./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-31.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_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/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_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/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_753fab22-0165-4ee4-93aa-392d57b52ad8/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 9930e7e7388f7dfeb601d848298c3301ebab0d86295164196a4204cce117c042 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:08:03,805 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:08:03,877 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:08:03,883 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:08:03,884 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:08:03,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:08:03,935 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:08:03,936 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:08:03,937 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:08:03,938 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:08:03,938 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:08:03,939 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:08:03,940 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:08:03,940 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:08:03,941 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:08:03,942 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:08:03,942 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:08:03,943 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:08:03,944 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:08:03,944 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:08:03,945 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:08:03,946 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:08:03,946 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:08:03,947 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:08:03,947 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:08:03,948 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:08:03,948 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:08:03,949 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:08:03,950 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:08:03,950 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:08:03,950 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:08:03,951 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:08:03,952 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:08:03,952 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:08:03,953 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:08:03,971 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:08:03,972 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:08:03,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:03,973 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:08:03,973 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:08:03,973 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:08:03,974 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:08:03,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:08:03,975 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:08:03,975 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:08:03,975 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:08:03,976 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:08:03,976 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_753fab22-0165-4ee4-93aa-392d57b52ad8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9930e7e7388f7dfeb601d848298c3301ebab0d86295164196a4204cce117c042 [2023-11-23 21:08:04,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:08:04,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:08:04,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:08:04,323 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:08:04,324 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:08:04,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-31.i [2023-11-23 21:08:07,329 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:08:07,661 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:08:07,662 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-31.i [2023-11-23 21:08:07,675 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/data/cc89c9a7d/33e64b5862f74d438060b3a2b5918b0e/FLAGe1959ba95 [2023-11-23 21:08:07,697 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/data/cc89c9a7d/33e64b5862f74d438060b3a2b5918b0e [2023-11-23 21:08:07,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:08:07,705 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:08:07,709 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:07,710 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:08:07,715 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:08:07,718 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:07" (1/1) ... [2023-11-23 21:08:07,719 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@561409ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:07, skipping insertion in model container [2023-11-23 21:08:07,719 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:07" (1/1) ... [2023-11-23 21:08:07,757 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:08:07,924 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_753fab22-0165-4ee4-93aa-392d57b52ad8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-31.i[913,926] [2023-11-23 21:08:07,963 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:07,976 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:08:07,990 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_753fab22-0165-4ee4-93aa-392d57b52ad8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-31.i[913,926] [2023-11-23 21:08:08,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:08,045 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:08:08,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08 WrapperNode [2023-11-23 21:08:08,045 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:08,047 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:08,047 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:08:08,047 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:08:08,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,077 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,126 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 98 [2023-11-23 21:08:08,128 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:08,129 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:08:08,129 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:08:08,129 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:08:08,140 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,144 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,144 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,160 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,171 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,173 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,180 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,183 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:08:08,186 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:08:08,187 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:08:08,187 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:08:08,188 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:08,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:08:08,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:08:08,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:08:08,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:08:08,267 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:08:08,267 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:08:08,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:08:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:08:08,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:08:08,364 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:08:08,367 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:08:08,703 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:08:08,882 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:08:08,882 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:08:08,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:08 BoogieIcfgContainer [2023-11-23 21:08:08,884 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:08:08,887 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:08:08,887 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:08:08,891 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:08:08,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:08:07" (1/3) ... [2023-11-23 21:08:08,892 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@956735e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:08, skipping insertion in model container [2023-11-23 21:08:08,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (2/3) ... [2023-11-23 21:08:08,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@956735e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:08, skipping insertion in model container [2023-11-23 21:08:08,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:08" (3/3) ... [2023-11-23 21:08:08,899 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-31.i [2023-11-23 21:08:08,922 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:08:08,923 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:08:08,983 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:08:08,992 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;@3ca5e9d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:08:08,994 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:08:08,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 21:08:09,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-23 21:08:09,012 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:09,013 INFO L195 NwaCegarLoop]: trace histogram [11, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:08:09,014 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:09,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:09,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1921494112, now seen corresponding path program 1 times [2023-11-23 21:08:09,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:08:09,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178379406] [2023-11-23 21:08:09,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:09,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:08:09,242 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:08:09,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1621181978] [2023-11-23 21:08:09,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:09,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:08:09,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:08:09,250 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:08:09,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:08:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:08:09,428 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:08:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:08:09,533 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:08:09,535 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:08:09,537 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:08:09,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:08:09,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:08:09,767 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:08:09,771 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:08:09,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:08:09 BoogieIcfgContainer [2023-11-23 21:08:09,818 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:08:09,819 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:08:09,819 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:08:09,852 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:08:09,852 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:08" (3/4) ... [2023-11-23 21:08:09,855 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:08:09,856 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:08:09,858 INFO L158 Benchmark]: Toolchain (without parser) took 2152.00ms. Allocated memory is still 180.4MB. Free memory was 149.0MB in the beginning and 149.1MB in the end (delta: -130.2kB). Peak memory consumption was 74.6MB. Max. memory is 16.1GB. [2023-11-23 21:08:09,858 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:08:09,859 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.64ms. Allocated memory is still 180.4MB. Free memory was 148.6MB in the beginning and 136.3MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:08:09,860 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.49ms. Allocated memory is still 180.4MB. Free memory was 136.3MB in the beginning and 133.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:08:09,861 INFO L158 Benchmark]: Boogie Preprocessor took 55.85ms. Allocated memory is still 180.4MB. Free memory was 133.9MB in the beginning and 132.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:08:09,861 INFO L158 Benchmark]: RCFGBuilder took 698.90ms. Allocated memory is still 180.4MB. Free memory was 132.6MB in the beginning and 107.0MB in the end (delta: 25.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-23 21:08:09,862 INFO L158 Benchmark]: TraceAbstraction took 930.94ms. Allocated memory is still 180.4MB. Free memory was 106.6MB in the beginning and 80.2MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-23 21:08:09,863 INFO L158 Benchmark]: Witness Printer took 37.67ms. Allocated memory is still 180.4MB. Free memory was 80.2MB in the beginning and 149.2MB in the end (delta: -69.0MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2023-11-23 21:08:09,867 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.64ms. Allocated memory is still 180.4MB. Free memory was 148.6MB in the beginning and 136.3MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.49ms. Allocated memory is still 180.4MB. Free memory was 136.3MB in the beginning and 133.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.85ms. Allocated memory is still 180.4MB. Free memory was 133.9MB in the beginning and 132.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 698.90ms. Allocated memory is still 180.4MB. Free memory was 132.6MB in the beginning and 107.0MB in the end (delta: 25.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 930.94ms. Allocated memory is still 180.4MB. Free memory was 106.6MB in the beginning and 80.2MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 37.67ms. Allocated memory is still 180.4MB. Free memory was 80.2MB in the beginning and 149.2MB in the end (delta: -69.0MB). Peak memory consumption was 7.5MB. 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 38. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 200; [L23] unsigned char var_1_2 = 0; [L24] signed long int var_1_3 = 1107940323; [L25] unsigned char var_1_6 = 0; [L26] signed long int var_1_7 = 4; [L27] signed long int var_1_8 = -32; [L28] unsigned char var_1_9 = 64; [L29] unsigned char var_1_12 = 4; [L30] double var_1_13 = 0.97; [L31] double var_1_14 = 32.6; [L32] signed long int last_1_var_1_7 = 4; [L33] double last_1_var_1_13 = 0.97; [L100] isInitial = 1 [L101] FCALL initially() [L102] COND TRUE 1 [L103] CALL updateLastVariables() [L92] last_1_var_1_7 = var_1_7 [L93] last_1_var_1_13 = var_1_13 [L103] RET updateLastVariables() [L104] CALL updateVariables() [L73] var_1_2 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_3=1107940323, var_1_6=0, var_1_7=4, var_1_8=-32, var_1_9=64] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_3=1107940323, var_1_6=0, var_1_7=4, var_1_8=-32, var_1_9=64] [L75] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=0, var_1_3=1107940323, var_1_6=0, var_1_7=4, var_1_8=-32, var_1_9=64] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=0, var_1_3=1107940323, var_1_6=0, var_1_7=4, var_1_8=-32, var_1_9=64] [L76] var_1_3 = __VERIFIER_nondet_long() [L77] CALL assume_abort_if_not(var_1_3 >= 1073741822) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=0, var_1_3=1073741823, var_1_6=0, var_1_7=4, var_1_8=-32, var_1_9=64] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_3 >= 1073741822) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=0, var_1_3=1073741823, var_1_6=0, var_1_7=4, var_1_8=-32, var_1_9=64] [L78] CALL assume_abort_if_not(var_1_3 <= 2147483646) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=0, var_1_3=1073741823, var_1_6=0, var_1_7=4, var_1_8=-32, var_1_9=64] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_3 <= 2147483646) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=0, var_1_3=1073741823, var_1_6=0, var_1_7=4, var_1_8=-32, var_1_9=64] [L79] var_1_6 = __VERIFIER_nondet_uchar() [L80] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=0, var_1_3=1073741823, var_1_7=4, var_1_8=-32, var_1_9=64] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=0, var_1_3=1073741823, var_1_7=4, var_1_8=-32, var_1_9=64] [L81] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=0, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=-32, var_1_9=64] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=0, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=-32, var_1_9=64] [L82] var_1_8 = __VERIFIER_nondet_long() [L83] CALL assume_abort_if_not(var_1_8 >= -1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=0, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_8 >= -1073741823) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=0, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L84] CALL assume_abort_if_not(var_1_8 <= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=0, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_8 <= 1073741823) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=0, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L85] var_1_12 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=0, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=0, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L87] CALL assume_abort_if_not(var_1_12 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=0, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=0, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_12 <= 254) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=0, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=0, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L88] var_1_14 = __VERIFIER_nondet_double() [L89] CALL assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=0, var_1_13=97/100, var_1_1=200, var_1_2=0, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=0, var_1_13=97/100, var_1_1=200, var_1_2=0, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L104] RET updateVariables() [L105] CALL step() [L37] COND FALSE !(! (var_1_3 < (var_1_8 * last_1_var_1_7))) [L44] var_1_9 = var_1_12 [L46] COND FALSE !(var_1_9 < var_1_9) [L49] var_1_7 = (var_1_9 - var_1_3) [L51] COND FALSE !((var_1_9 + var_1_3) < var_1_9) [L62] var_1_13 = var_1_14 [L64] COND FALSE !(\read(var_1_2)) [L67] COND FALSE !(var_1_6 && (var_1_3 < var_1_9)) [L105] RET step() [L106] CALL, EXPR property() [L96-L97] return (((var_1_2 ? (var_1_1 == ((signed long int) ((var_1_3 - var_1_9) - var_1_9))) : ((var_1_6 && (var_1_3 < var_1_9)) ? (var_1_1 == ((signed long int) var_1_3)) : 1)) && ((var_1_9 < var_1_9) ? (var_1_7 == ((signed long int) (var_1_9 + var_1_9))) : (var_1_7 == ((signed long int) (var_1_9 - var_1_3))))) && ((! (var_1_3 < (var_1_8 * last_1_var_1_7))) ? ((((((last_1_var_1_13) < 0 ) ? -(last_1_var_1_13) : (last_1_var_1_13))) < last_1_var_1_13) ? (var_1_6 ? (var_1_9 == ((unsigned char) var_1_12)) : 1) : 1) : (var_1_9 == ((unsigned char) var_1_12)))) && (((var_1_9 + var_1_3) < var_1_9) ? ((var_1_2 && var_1_6) ? (var_1_6 ? (var_1_13 == ((double) 0.8)) : (var_1_13 == ((double) var_1_14))) : (var_1_13 == ((double) var_1_14))) : (var_1_13 == ((double) var_1_14))) ; [L106] RET, EXPR property() [L106] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=0, var_1_13=2, var_1_14=2, var_1_1=200, var_1_2=0, var_1_3=1073741823, var_1_6=1, var_1_7=-1073741823, var_1_8=268435456, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=0, var_1_13=2, var_1_14=2, var_1_1=200, var_1_2=0, var_1_3=1073741823, var_1_6=1, var_1_7=-1073741823, var_1_8=268435456, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 11, 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=26occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 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 21:08:09,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/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_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/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_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/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_753fab22-0165-4ee4-93aa-392d57b52ad8/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 9930e7e7388f7dfeb601d848298c3301ebab0d86295164196a4204cce117c042 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:08:12,633 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:08:12,721 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:08:12,728 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:08:12,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:08:12,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:08:12,768 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:08:12,769 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:08:12,770 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:08:12,775 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:08:12,776 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:08:12,776 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:08:12,777 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:08:12,779 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:08:12,779 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:08:12,780 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:08:12,781 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:08:12,781 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:08:12,782 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:08:12,783 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:08:12,784 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:08:12,784 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:08:12,785 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:08:12,785 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:08:12,786 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:08:12,786 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:08:12,787 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:08:12,787 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:08:12,788 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:08:12,788 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:08:12,790 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:08:12,790 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:08:12,790 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:08:12,791 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:08:12,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:12,792 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:08:12,792 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:08:12,792 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:08:12,793 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:08:12,794 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:08:12,794 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:08:12,795 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:08:12,795 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:08:12,795 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:08:12,796 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_753fab22-0165-4ee4-93aa-392d57b52ad8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9930e7e7388f7dfeb601d848298c3301ebab0d86295164196a4204cce117c042 [2023-11-23 21:08:13,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:08:13,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:08:13,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:08:13,237 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:08:13,238 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:08:13,239 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-31.i [2023-11-23 21:08:16,413 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:08:16,727 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:08:16,728 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-31.i [2023-11-23 21:08:16,736 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/data/8d06139cf/27936ea6a9334f94bd594995076a7d97/FLAGa3fa089f5 [2023-11-23 21:08:16,759 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/data/8d06139cf/27936ea6a9334f94bd594995076a7d97 [2023-11-23 21:08:16,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:08:16,769 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:08:16,773 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:16,773 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:08:16,780 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:08:16,784 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:16" (1/1) ... [2023-11-23 21:08:16,785 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b36bb69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:16, skipping insertion in model container [2023-11-23 21:08:16,785 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:16" (1/1) ... [2023-11-23 21:08:16,815 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:08:16,992 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_753fab22-0165-4ee4-93aa-392d57b52ad8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-31.i[913,926] [2023-11-23 21:08:17,031 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:17,049 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:08:17,063 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_753fab22-0165-4ee4-93aa-392d57b52ad8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-31.i[913,926] [2023-11-23 21:08:17,082 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:17,101 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:08:17,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17 WrapperNode [2023-11-23 21:08:17,102 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:17,104 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:17,104 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:08:17,104 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:08:17,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (1/1) ... [2023-11-23 21:08:17,125 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (1/1) ... [2023-11-23 21:08:17,152 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 96 [2023-11-23 21:08:17,152 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:17,153 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:08:17,153 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:08:17,154 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:08:17,164 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (1/1) ... [2023-11-23 21:08:17,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (1/1) ... [2023-11-23 21:08:17,172 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (1/1) ... [2023-11-23 21:08:17,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (1/1) ... [2023-11-23 21:08:17,190 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (1/1) ... [2023-11-23 21:08:17,201 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (1/1) ... [2023-11-23 21:08:17,205 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (1/1) ... [2023-11-23 21:08:17,217 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (1/1) ... [2023-11-23 21:08:17,221 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:08:17,222 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:08:17,222 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:08:17,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:08:17,223 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (1/1) ... [2023-11-23 21:08:17,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:17,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:08:17,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:08:17,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:08:17,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:08:17,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:08:17,321 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:08:17,321 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:08:17,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:08:17,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:08:17,445 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:08:17,449 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:08:17,838 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:08:17,882 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:08:17,883 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:08:17,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:17 BoogieIcfgContainer [2023-11-23 21:08:17,883 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:08:17,886 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:08:17,886 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:08:17,890 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:08:17,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:08:16" (1/3) ... [2023-11-23 21:08:17,891 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f104f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:17, skipping insertion in model container [2023-11-23 21:08:17,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (2/3) ... [2023-11-23 21:08:17,892 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f104f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:17, skipping insertion in model container [2023-11-23 21:08:17,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:17" (3/3) ... [2023-11-23 21:08:17,893 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-31.i [2023-11-23 21:08:17,913 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:08:17,914 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:08:17,966 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:08:17,973 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;@17ee0fdb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:08:17,974 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:08:17,979 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 21:08:17,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-23 21:08:17,990 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:17,991 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:08:17,992 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:17,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:17,998 INFO L85 PathProgramCache]: Analyzing trace with hash 30954485, now seen corresponding path program 1 times [2023-11-23 21:08:18,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:18,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104994994] [2023-11-23 21:08:18,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:18,014 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 21:08:18,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:18,024 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/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 21:08:18,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/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 21:08:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:18,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:08:18,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:18,299 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-23 21:08:18,299 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:18,300 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:18,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1104994994] [2023-11-23 21:08:18,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1104994994] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:18,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:18,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:08:18,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982228975] [2023-11-23 21:08:18,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:18,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:08:18,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:18,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:08:18,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:08:18,342 INFO L87 Difference]: Start difference. First operand has 39 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-23 21:08:18,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:18,429 INFO L93 Difference]: Finished difference Result 74 states and 129 transitions. [2023-11-23 21:08:18,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:08:18,434 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 70 [2023-11-23 21:08:18,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:18,443 INFO L225 Difference]: With dead ends: 74 [2023-11-23 21:08:18,443 INFO L226 Difference]: Without dead ends: 36 [2023-11-23 21:08:18,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 69 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 21:08:18,454 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:18,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:08:18,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-23 21:08:18,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-23 21:08:18,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 23 states have internal predecessors, (30), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 21:08:18,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 52 transitions. [2023-11-23 21:08:18,511 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 52 transitions. Word has length 70 [2023-11-23 21:08:18,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:18,513 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 52 transitions. [2023-11-23 21:08:18,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-23 21:08:18,515 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 52 transitions. [2023-11-23 21:08:18,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-23 21:08:18,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:18,522 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:08:18,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/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 21:08:18,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/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 21:08:18,727 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:18,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:18,728 INFO L85 PathProgramCache]: Analyzing trace with hash 88212787, now seen corresponding path program 1 times [2023-11-23 21:08:18,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:18,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1876563414] [2023-11-23 21:08:18,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:18,731 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 21:08:18,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:18,733 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/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 21:08:18,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_753fab22-0165-4ee4-93aa-392d57b52ad8/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 21:08:18,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:18,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-23 21:08:18,931 INFO L285 TraceCheckSpWp]: Computing forward predicates...