./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-94.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_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/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_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-94.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/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_1b09735c-0348-4027-b862-2f09d4be7631/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 daecda5a34625d8e7f3f0a930a730363a7677d8fd3b8cd0943f5f6f1bfbdafff --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:34:41,836 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:34:41,956 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:34:41,961 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:34:41,961 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:34:42,011 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:34:42,012 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:34:42,013 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:34:42,014 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:34:42,019 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:34:42,020 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:34:42,021 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:34:42,021 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:34:42,023 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:34:42,024 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:34:42,024 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:34:42,024 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:34:42,025 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:34:42,025 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:34:42,026 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:34:42,026 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:34:42,027 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:34:42,028 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:34:42,028 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:34:42,029 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:34:42,029 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:34:42,029 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:34:42,030 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:34:42,030 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:34:42,031 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:34:42,032 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:34:42,032 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:34:42,032 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:34:42,033 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:34:42,033 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:34:42,034 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:34:42,035 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:34:42,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:42,035 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:34:42,035 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:34:42,036 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:34:42,036 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:34:42,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:34:42,036 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:34:42,037 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:34:42,037 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:34:42,037 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:34:42,038 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_1b09735c-0348-4027-b862-2f09d4be7631/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> daecda5a34625d8e7f3f0a930a730363a7677d8fd3b8cd0943f5f6f1bfbdafff [2023-11-23 20:34:42,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:34:42,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:34:42,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:34:42,369 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:34:42,370 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:34:42,372 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-94.i [2023-11-23 20:34:45,620 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:34:45,838 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:34:45,839 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-94.i [2023-11-23 20:34:45,846 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/data/d48403a8e/0f55ff9f3d7343c49ed4cdee08362b3b/FLAGdc3a0b4a3 [2023-11-23 20:34:45,862 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/data/d48403a8e/0f55ff9f3d7343c49ed4cdee08362b3b [2023-11-23 20:34:45,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:34:45,866 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:34:45,868 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:45,868 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:34:45,874 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:34:45,878 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:45" (1/1) ... [2023-11-23 20:34:45,879 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32ff78af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:45, skipping insertion in model container [2023-11-23 20:34:45,879 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:45" (1/1) ... [2023-11-23 20:34:45,910 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:34:46,048 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_1b09735c-0348-4027-b862-2f09d4be7631/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-94.i[915,928] [2023-11-23 20:34:46,076 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:46,087 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:34:46,100 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_1b09735c-0348-4027-b862-2f09d4be7631/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-94.i[915,928] [2023-11-23 20:34:46,115 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:46,128 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:34:46,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:46 WrapperNode [2023-11-23 20:34:46,128 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:46,129 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:46,130 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:34:46,130 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:34:46,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:46" (1/1) ... [2023-11-23 20:34:46,155 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:46" (1/1) ... [2023-11-23 20:34:46,190 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 82 [2023-11-23 20:34:46,191 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:46,192 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:34:46,192 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:34:46,192 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:34:46,206 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:46" (1/1) ... [2023-11-23 20:34:46,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:46" (1/1) ... [2023-11-23 20:34:46,209 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:46" (1/1) ... [2023-11-23 20:34:46,210 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:46" (1/1) ... [2023-11-23 20:34:46,215 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:46" (1/1) ... [2023-11-23 20:34:46,219 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:46" (1/1) ... [2023-11-23 20:34:46,221 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:46" (1/1) ... [2023-11-23 20:34:46,222 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:46" (1/1) ... [2023-11-23 20:34:46,238 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:34:46,239 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:34:46,239 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:34:46,239 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:34:46,240 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:46" (1/1) ... [2023-11-23 20:34:46,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:46,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:46,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:34:46,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:34:46,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:34:46,341 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:34:46,342 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:34:46,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:34:46,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:34:46,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:34:46,442 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:34:46,444 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:34:46,762 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:34:46,888 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:34:46,894 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:34:46,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:46 BoogieIcfgContainer [2023-11-23 20:34:46,896 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:34:46,899 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:34:46,900 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:34:46,904 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:34:46,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:34:45" (1/3) ... [2023-11-23 20:34:46,907 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a05f02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:46, skipping insertion in model container [2023-11-23 20:34:46,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:46" (2/3) ... [2023-11-23 20:34:46,907 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a05f02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:46, skipping insertion in model container [2023-11-23 20:34:46,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:46" (3/3) ... [2023-11-23 20:34:46,909 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-94.i [2023-11-23 20:34:46,933 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:34:46,934 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:34:46,992 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:34:46,999 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;@7862a4b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:34:46,999 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:34:47,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 20:34:47,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-23 20:34:47,024 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:47,025 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 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 20:34:47,026 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:47,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:47,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1814295670, now seen corresponding path program 1 times [2023-11-23 20:34:47,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:47,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78638743] [2023-11-23 20:34:47,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:47,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:34:47,266 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:34:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:34:47,469 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:34:47,471 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:34:47,473 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:34:47,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:34:47,481 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 20:34:47,486 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:34:47,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:34:47 BoogieIcfgContainer [2023-11-23 20:34:47,549 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:34:47,550 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:34:47,550 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:34:47,550 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:34:47,551 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:46" (3/4) ... [2023-11-23 20:34:47,553 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:34:47,554 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:34:47,554 INFO L158 Benchmark]: Toolchain (without parser) took 1688.32ms. Allocated memory is still 165.7MB. Free memory was 126.7MB in the beginning and 129.0MB in the end (delta: -2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:34:47,555 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:34:47,556 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.79ms. Allocated memory is still 165.7MB. Free memory was 126.7MB in the beginning and 114.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 20:34:47,556 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.77ms. Allocated memory is still 165.7MB. Free memory was 114.7MB in the beginning and 112.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:34:47,557 INFO L158 Benchmark]: Boogie Preprocessor took 46.37ms. Allocated memory is still 165.7MB. Free memory was 112.6MB in the beginning and 111.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:34:47,558 INFO L158 Benchmark]: RCFGBuilder took 657.15ms. Allocated memory is still 165.7MB. Free memory was 111.2MB in the beginning and 89.0MB in the end (delta: 22.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-23 20:34:47,558 INFO L158 Benchmark]: TraceAbstraction took 650.25ms. Allocated memory is still 165.7MB. Free memory was 88.7MB in the beginning and 129.9MB in the end (delta: -41.2MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2023-11-23 20:34:47,559 INFO L158 Benchmark]: Witness Printer took 3.95ms. Allocated memory is still 165.7MB. Free memory was 129.9MB in the beginning and 129.0MB in the end (delta: 912.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:34:47,562 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.79ms. Allocated memory is still 165.7MB. Free memory was 126.7MB in the beginning and 114.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.77ms. Allocated memory is still 165.7MB. Free memory was 114.7MB in the beginning and 112.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.37ms. Allocated memory is still 165.7MB. Free memory was 112.6MB in the beginning and 111.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 657.15ms. Allocated memory is still 165.7MB. Free memory was 111.2MB in the beginning and 89.0MB in the end (delta: 22.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 650.25ms. Allocated memory is still 165.7MB. Free memory was 88.7MB in the beginning and 129.9MB in the end (delta: -41.2MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. * Witness Printer took 3.95ms. Allocated memory is still 165.7MB. Free memory was 129.9MB in the beginning and 129.0MB in the end (delta: 912.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of shiftRight at line 33. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 2; [L23] unsigned short int var_1_2 = 45931; [L24] unsigned short int var_1_3 = 30067; [L25] unsigned short int var_1_4 = 256; [L26] unsigned short int var_1_5 = 10000; [L27] unsigned short int var_1_6 = 5; [L28] signed long int var_1_7 = -5; [L62] isInitial = 1 [L63] FCALL initially() [L64] COND TRUE 1 [L65] FCALL updateLastVariables() [L66] CALL updateVariables() [L39] var_1_2 = __VERIFIER_nondet_ushort() [L40] CALL assume_abort_if_not(var_1_2 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_1=2, var_1_2=65534, var_1_3=30067, var_1_4=256, var_1_5=10000, var_1_6=5, var_1_7=-5] [L20] COND FALSE !(!cond) [L40] RET assume_abort_if_not(var_1_2 >= 32767) VAL [isInitial=1, var_1_1=2, var_1_2=65534, var_1_3=30067, var_1_4=256, var_1_5=10000, var_1_6=5, var_1_7=-5] [L41] CALL assume_abort_if_not(var_1_2 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_1=2, var_1_2=65534, var_1_3=30067, var_1_4=256, var_1_5=10000, var_1_6=5, var_1_7=-5] [L20] COND FALSE !(!cond) [L41] RET assume_abort_if_not(var_1_2 <= 65534) VAL [isInitial=1, var_1_1=2, var_1_2=65534, var_1_3=30067, var_1_4=256, var_1_5=10000, var_1_6=5, var_1_7=-5] [L42] var_1_3 = __VERIFIER_nondet_ushort() [L43] CALL assume_abort_if_not(var_1_3 >= 24575) VAL [\old(cond)=1, isInitial=1, var_1_1=2, var_1_2=65534, var_1_3=24575, var_1_4=256, var_1_5=10000, var_1_6=5, var_1_7=-5] [L20] COND FALSE !(!cond) [L43] RET assume_abort_if_not(var_1_3 >= 24575) VAL [isInitial=1, var_1_1=2, var_1_2=65534, var_1_3=24575, var_1_4=256, var_1_5=10000, var_1_6=5, var_1_7=-5] [L44] CALL assume_abort_if_not(var_1_3 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_1=2, var_1_2=65534, var_1_3=24575, var_1_4=256, var_1_5=10000, var_1_6=5, var_1_7=-5] [L20] COND FALSE !(!cond) [L44] RET assume_abort_if_not(var_1_3 <= 32767) VAL [isInitial=1, var_1_1=2, var_1_2=65534, var_1_3=24575, var_1_4=256, var_1_5=10000, var_1_6=5, var_1_7=-5] [L45] var_1_4 = __VERIFIER_nondet_ushort() [L46] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=2, var_1_2=65534, var_1_3=24575, var_1_5=10000, var_1_6=5, var_1_7=-5] [L20] COND FALSE !(!cond) [L46] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_1=2, var_1_2=65534, var_1_3=24575, var_1_5=10000, var_1_6=5, var_1_7=-5] [L47] CALL assume_abort_if_not(var_1_4 <= 8192) VAL [\old(cond)=1, isInitial=1, var_1_1=2, var_1_2=65534, var_1_3=24575, var_1_4=8192, var_1_5=10000, var_1_6=5, var_1_7=-5] [L20] COND FALSE !(!cond) [L47] RET assume_abort_if_not(var_1_4 <= 8192) VAL [isInitial=1, var_1_1=2, var_1_2=65534, var_1_3=24575, var_1_4=8192, var_1_5=10000, var_1_6=5, var_1_7=-5] [L48] var_1_5 = __VERIFIER_nondet_ushort() [L49] CALL assume_abort_if_not(var_1_5 >= 8191) VAL [\old(cond)=1, isInitial=1, var_1_1=2, var_1_2=65534, var_1_3=24575, var_1_4=8192, var_1_5=8191, var_1_6=5, var_1_7=-5] [L20] COND FALSE !(!cond) [L49] RET assume_abort_if_not(var_1_5 >= 8191) VAL [isInitial=1, var_1_1=2, var_1_2=65534, var_1_3=24575, var_1_4=8192, var_1_5=8191, var_1_6=5, var_1_7=-5] [L50] CALL assume_abort_if_not(var_1_5 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_1=2, var_1_2=65534, var_1_3=24575, var_1_4=8192, var_1_5=8191, var_1_6=5, var_1_7=-5] [L20] COND FALSE !(!cond) [L50] RET assume_abort_if_not(var_1_5 <= 16383) VAL [isInitial=1, var_1_1=2, var_1_2=65534, var_1_3=24575, var_1_4=8192, var_1_5=8191, var_1_6=5, var_1_7=-5] [L51] var_1_6 = __VERIFIER_nondet_ushort() [L52] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=2, var_1_2=65534, var_1_3=24575, var_1_4=8192, var_1_5=8191, var_1_7=-5] [L20] COND FALSE !(!cond) [L52] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_1=2, var_1_2=65534, var_1_3=24575, var_1_4=8192, var_1_5=8191, var_1_7=-5] [L53] CALL assume_abort_if_not(var_1_6 <= 8191) VAL [\old(cond)=1, isInitial=1, var_1_1=2, var_1_2=65534, var_1_3=24575, var_1_4=8192, var_1_5=8191, var_1_6=0, var_1_7=-5] [L20] COND FALSE !(!cond) [L53] RET assume_abort_if_not(var_1_6 <= 8191) VAL [isInitial=1, var_1_1=2, var_1_2=65534, var_1_3=24575, var_1_4=8192, var_1_5=8191, var_1_6=0, var_1_7=-5] [L66] RET updateVariables() [L67] CALL step() [L32] var_1_1 = (var_1_2 - ((var_1_3 - var_1_4) - (var_1_5 - var_1_6))) [L33] EXPR (var_1_3 + var_1_6) >> var_1_1 [L33] signed long int stepLocal_0 = (var_1_3 + var_1_6) >> var_1_1; [L34] COND FALSE !(var_1_4 != stepLocal_0) [L67] RET step() [L68] CALL, EXPR property() [L58] EXPR (var_1_1 == ((unsigned short int) (var_1_2 - ((var_1_3 - var_1_4) - (var_1_5 - var_1_6))))) && ((var_1_4 != ((var_1_3 + var_1_6) >> var_1_1)) ? (var_1_7 == ((signed long int) var_1_2)) : 1) [L58] EXPR (var_1_3 + var_1_6) >> var_1_1 [L58] EXPR (var_1_1 == ((unsigned short int) (var_1_2 - ((var_1_3 - var_1_4) - (var_1_5 - var_1_6))))) && ((var_1_4 != ((var_1_3 + var_1_6) >> var_1_1)) ? (var_1_7 == ((signed long int) var_1_2)) : 1) [L58-L59] return (var_1_1 == ((unsigned short int) (var_1_2 - ((var_1_3 - var_1_4) - (var_1_5 - var_1_6))))) && ((var_1_4 != ((var_1_3 + var_1_6) >> var_1_1)) ? (var_1_7 == ((signed long int) var_1_2)) : 1) ; [L68] RET, EXPR property() [L68] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=57342, var_1_2=65534, var_1_3=24575, var_1_4=8192, var_1_5=8191, var_1_6=0, var_1_7=-5] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=57342, var_1_2=65534, var_1_3=24575, var_1_4=8192, var_1_5=8191, var_1_6=0, var_1_7=-5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 10, 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=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 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 20:34:47,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/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_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/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_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-94.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/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_1b09735c-0348-4027-b862-2f09d4be7631/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 daecda5a34625d8e7f3f0a930a730363a7677d8fd3b8cd0943f5f6f1bfbdafff --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:34:50,234 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:34:50,354 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 20:34:50,363 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:34:50,363 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:34:50,401 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:34:50,402 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:34:50,403 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:34:50,404 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:34:50,408 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:34:50,409 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:34:50,409 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:34:50,410 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:34:50,412 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:34:50,412 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:34:50,412 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:34:50,414 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:34:50,414 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:34:50,415 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:34:50,416 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:34:50,416 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:34:50,417 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:34:50,417 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:34:50,418 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:34:50,418 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:34:50,418 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:34:50,419 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:34:50,419 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:34:50,420 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:34:50,420 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:34:50,422 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:34:50,422 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 20:34:50,422 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:34:50,423 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:34:50,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:50,423 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:34:50,424 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:34:50,424 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:34:50,424 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:34:50,425 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:34:50,426 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:34:50,426 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:34:50,427 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:34:50,427 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:34:50,427 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_1b09735c-0348-4027-b862-2f09d4be7631/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> daecda5a34625d8e7f3f0a930a730363a7677d8fd3b8cd0943f5f6f1bfbdafff [2023-11-23 20:34:50,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:34:50,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:34:50,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:34:50,802 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:34:50,803 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:34:50,804 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-94.i [2023-11-23 20:34:53,939 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:34:54,182 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:34:54,182 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-94.i [2023-11-23 20:34:54,189 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/data/211e6f764/9f7a5dc39d8949529bd8b145df1c0aaf/FLAG55bb5e5bb [2023-11-23 20:34:54,202 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/data/211e6f764/9f7a5dc39d8949529bd8b145df1c0aaf [2023-11-23 20:34:54,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:34:54,207 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:34:54,208 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:54,208 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:34:54,213 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:34:54,214 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:54" (1/1) ... [2023-11-23 20:34:54,215 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@780f882a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:54, skipping insertion in model container [2023-11-23 20:34:54,215 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:54" (1/1) ... [2023-11-23 20:34:54,240 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:34:54,399 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_1b09735c-0348-4027-b862-2f09d4be7631/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-94.i[915,928] [2023-11-23 20:34:54,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:54,467 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:34:54,486 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_1b09735c-0348-4027-b862-2f09d4be7631/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-94.i[915,928] [2023-11-23 20:34:54,508 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:54,531 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:34:54,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:54 WrapperNode [2023-11-23 20:34:54,531 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:54,533 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:54,533 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:34:54,533 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:34:54,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:54" (1/1) ... [2023-11-23 20:34:54,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:54" (1/1) ... [2023-11-23 20:34:54,570 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 70 [2023-11-23 20:34:54,570 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:54,571 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:34:54,571 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:34:54,571 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:34:54,580 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:54" (1/1) ... [2023-11-23 20:34:54,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:54" (1/1) ... [2023-11-23 20:34:54,584 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:54" (1/1) ... [2023-11-23 20:34:54,584 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:54" (1/1) ... [2023-11-23 20:34:54,593 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:54" (1/1) ... [2023-11-23 20:34:54,597 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:54" (1/1) ... [2023-11-23 20:34:54,599 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:54" (1/1) ... [2023-11-23 20:34:54,600 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:54" (1/1) ... [2023-11-23 20:34:54,604 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:34:54,605 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:34:54,605 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:34:54,605 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:34:54,606 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:54" (1/1) ... [2023-11-23 20:34:54,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:54,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:54,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:34:54,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:34:54,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:34:54,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:34:54,686 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:34:54,686 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:34:54,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:34:54,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:34:54,764 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:34:54,767 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:34:55,039 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:34:55,085 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:34:55,085 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:34:55,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:55 BoogieIcfgContainer [2023-11-23 20:34:55,086 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:34:55,088 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:34:55,088 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:34:55,092 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:34:55,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:34:54" (1/3) ... [2023-11-23 20:34:55,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79eccaff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:55, skipping insertion in model container [2023-11-23 20:34:55,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:54" (2/3) ... [2023-11-23 20:34:55,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79eccaff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:55, skipping insertion in model container [2023-11-23 20:34:55,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:55" (3/3) ... [2023-11-23 20:34:55,095 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-94.i [2023-11-23 20:34:55,113 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:34:55,113 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:34:55,159 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:34:55,166 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;@290639a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:34:55,167 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:34:55,171 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 20:34:55,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 20:34:55,186 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:55,186 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 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 20:34:55,187 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:55,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:55,193 INFO L85 PathProgramCache]: Analyzing trace with hash 662216717, now seen corresponding path program 1 times [2023-11-23 20:34:55,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:34:55,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1287786088] [2023-11-23 20:34:55,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:55,207 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 20:34:55,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:34:55,213 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/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 20:34:55,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/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 20:34:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:55,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 20:34:55,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:34:55,828 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-23 20:34:55,829 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:34:55,830 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:34:55,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1287786088] [2023-11-23 20:34:55,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1287786088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:55,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:55,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:34:55,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698292924] [2023-11-23 20:34:55,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:55,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:34:55,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:34:55,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:34:55,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:34:55,883 INFO L87 Difference]: Start difference. First operand has 29 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-23 20:34:56,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:56,093 INFO L93 Difference]: Finished difference Result 60 states and 102 transitions. [2023-11-23 20:34:56,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 20:34:56,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 61 [2023-11-23 20:34:56,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:56,105 INFO L225 Difference]: With dead ends: 60 [2023-11-23 20:34:56,106 INFO L226 Difference]: Without dead ends: 32 [2023-11-23 20:34:56,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:34:56,116 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 13 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:56,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 77 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:34:56,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-23 20:34:56,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2023-11-23 20:34:56,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 20:34:56,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2023-11-23 20:34:56,155 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 61 [2023-11-23 20:34:56,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:56,157 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2023-11-23 20:34:56,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-23 20:34:56,161 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2023-11-23 20:34:56,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 20:34:56,165 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:56,165 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 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 20:34:56,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-23 20:34:56,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/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 20:34:56,369 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:56,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:56,369 INFO L85 PathProgramCache]: Analyzing trace with hash 662276299, now seen corresponding path program 1 times [2023-11-23 20:34:56,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:34:56,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1699528094] [2023-11-23 20:34:56,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:56,371 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 20:34:56,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:34:56,372 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/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 20:34:56,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/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 20:34:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:56,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 20:34:56,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:34:56,698 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-23 20:34:56,699 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:34:56,699 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:34:56,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1699528094] [2023-11-23 20:34:56,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1699528094] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:56,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:56,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:34:56,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169642320] [2023-11-23 20:34:56,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:56,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:34:56,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:34:56,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:34:56,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:34:56,711 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-23 20:34:57,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:57,062 INFO L93 Difference]: Finished difference Result 31 states and 41 transitions. [2023-11-23 20:34:57,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:34:57,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 61 [2023-11-23 20:34:57,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:57,065 INFO L225 Difference]: With dead ends: 31 [2023-11-23 20:34:57,065 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 20:34:57,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-23 20:34:57,067 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 6 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:57,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 90 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 20:34:57,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 20:34:57,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 20:34:57,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:34:57,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 20:34:57,070 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2023-11-23 20:34:57,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:57,070 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 20:34:57,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-23 20:34:57,071 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 20:34:57,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:34:57,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:34:57,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 20:34:57,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/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 20:34:57,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 20:34:57,310 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 37) no Hoare annotation was computed. [2023-11-23 20:34:57,311 INFO L902 garLoopResultBuilder]: At program point L64-2(lines 64 70) the Hoare annotation is: true [2023-11-23 20:34:57,312 INFO L899 garLoopResultBuilder]: For program point L64-3(lines 64 70) no Hoare annotation was computed. [2023-11-23 20:34:57,313 INFO L902 garLoopResultBuilder]: At program point L52(line 52) the Hoare annotation is: true [2023-11-23 20:34:57,314 INFO L902 garLoopResultBuilder]: At program point L52-1(line 52) the Hoare annotation is: true [2023-11-23 20:34:57,315 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-23 20:34:57,315 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-23 20:34:57,315 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-23 20:34:57,316 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2023-11-23 20:34:57,316 INFO L902 garLoopResultBuilder]: At program point L40(line 40) the Hoare annotation is: true [2023-11-23 20:34:57,316 INFO L902 garLoopResultBuilder]: At program point L40-1(line 40) the Hoare annotation is: true [2023-11-23 20:34:57,316 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-23 20:34:57,317 INFO L899 garLoopResultBuilder]: For program point L53(lines 38 54) no Hoare annotation was computed. [2023-11-23 20:34:57,317 INFO L902 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: true [2023-11-23 20:34:57,318 INFO L902 garLoopResultBuilder]: At program point L49-1(line 49) the Hoare annotation is: true [2023-11-23 20:34:57,321 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2023-11-23 20:34:57,326 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 20:34:57,327 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2023-11-23 20:34:57,327 INFO L902 garLoopResultBuilder]: At program point L46(line 46) the Hoare annotation is: true [2023-11-23 20:34:57,327 INFO L902 garLoopResultBuilder]: At program point L46-1(line 46) the Hoare annotation is: true [2023-11-23 20:34:57,327 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 20:34:57,327 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 36) no Hoare annotation was computed. [2023-11-23 20:34:57,328 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2023-11-23 20:34:57,328 INFO L902 garLoopResultBuilder]: At program point L43(line 43) the Hoare annotation is: true [2023-11-23 20:34:57,328 INFO L902 garLoopResultBuilder]: At program point L43-1(line 43) the Hoare annotation is: true [2023-11-23 20:34:57,328 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-23 20:34:57,329 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-23 20:34:57,329 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-23 20:34:57,329 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-23 20:34:57,333 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-23 20:34:57,335 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:34:57,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:34:57 BoogieIcfgContainer [2023-11-23 20:34:57,347 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:34:57,347 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:34:57,347 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:34:57,348 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:34:57,349 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:55" (3/4) ... [2023-11-23 20:34:57,351 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:34:57,356 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-23 20:34:57,364 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-23 20:34:57,364 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-23 20:34:57,364 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 20:34:57,365 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:34:57,494 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 20:34:57,494 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 20:34:57,494 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:34:57,495 INFO L158 Benchmark]: Toolchain (without parser) took 3288.68ms. Allocated memory was 81.8MB in the beginning and 109.1MB in the end (delta: 27.3MB). Free memory was 58.0MB in the beginning and 74.8MB in the end (delta: -16.8MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2023-11-23 20:34:57,496 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 81.8MB. Free memory was 57.3MB in the beginning and 57.1MB in the end (delta: 155.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:34:57,496 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.99ms. Allocated memory is still 81.8MB. Free memory was 57.8MB in the beginning and 46.0MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 20:34:57,496 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.78ms. Allocated memory is still 81.8MB. Free memory was 46.0MB in the beginning and 44.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:34:57,497 INFO L158 Benchmark]: Boogie Preprocessor took 32.79ms. Allocated memory is still 81.8MB. Free memory was 44.1MB in the beginning and 42.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:34:57,497 INFO L158 Benchmark]: RCFGBuilder took 481.47ms. Allocated memory is still 81.8MB. Free memory was 42.6MB in the beginning and 53.2MB in the end (delta: -10.6MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2023-11-23 20:34:57,498 INFO L158 Benchmark]: TraceAbstraction took 2258.63ms. Allocated memory was 81.8MB in the beginning and 109.1MB in the end (delta: 27.3MB). Free memory was 52.5MB in the beginning and 79.8MB in the end (delta: -27.3MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. [2023-11-23 20:34:57,498 INFO L158 Benchmark]: Witness Printer took 147.26ms. Allocated memory is still 109.1MB. Free memory was 79.8MB in the beginning and 74.8MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:34:57,502 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 81.8MB. Free memory was 57.3MB in the beginning and 57.1MB in the end (delta: 155.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.99ms. Allocated memory is still 81.8MB. Free memory was 57.8MB in the beginning and 46.0MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.78ms. Allocated memory is still 81.8MB. Free memory was 46.0MB in the beginning and 44.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.79ms. Allocated memory is still 81.8MB. Free memory was 44.1MB in the beginning and 42.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 481.47ms. Allocated memory is still 81.8MB. Free memory was 42.6MB in the beginning and 53.2MB in the end (delta: -10.6MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2258.63ms. Allocated memory was 81.8MB in the beginning and 109.1MB in the end (delta: 27.3MB). Free memory was 52.5MB in the beginning and 79.8MB in the end (delta: -27.3MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. * Witness Printer took 147.26ms. Allocated memory is still 109.1MB. Free memory was 79.8MB in the beginning and 74.8MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 2, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 167 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 105 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 62 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 31 PreInvPairs, 43 NumberOfFragments, 12 HoareAnnotationTreeSize, 31 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 228 SizeOfPredicates, 21 NumberOfNonLiveVariables, 211 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 360/360 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-23 20:34:57,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b09735c-0348-4027-b862-2f09d4be7631/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 Writing output log to file Ultimate.log Result: TRUE