./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-15.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-15.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ --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 b8e52945473f8a7c8eae1b0fc6b7ff8d7bdd237133fbc5cccb42de41250f237e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:59:36,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:59:36,163 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:59:36,169 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:59:36,169 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:59:36,199 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:59:36,200 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:59:36,201 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:59:36,202 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:59:36,202 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:59:36,203 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:59:36,204 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:59:36,204 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:59:36,205 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:59:36,206 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:59:36,206 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:59:36,207 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:59:36,208 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:59:36,208 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:59:36,209 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:59:36,209 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:59:36,210 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:59:36,211 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:59:36,212 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:59:36,212 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:59:36,213 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:59:36,213 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:59:36,214 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:59:36,214 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:59:36,215 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:59:36,215 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:59:36,216 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:59:36,216 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:59:36,217 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:59:36,217 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:59:36,218 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:59:36,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:59:36,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:59:36,220 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:59:36,220 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:59:36,221 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:59:36,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:59:36,222 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:59:36,222 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:59:36,223 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:59:36,223 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_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8e52945473f8a7c8eae1b0fc6b7ff8d7bdd237133fbc5cccb42de41250f237e [2023-11-19 04:59:36,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:59:36,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:59:36,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:59:36,558 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:59:36,559 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:59:36,561 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-15.i [2023-11-19 04:59:39,776 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:59:39,999 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:59:40,000 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-15.i [2023-11-19 04:59:40,009 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/data/ce33c235a/a63eea805b5642ff87caa583e538c0bf/FLAG91e1ef347 [2023-11-19 04:59:40,023 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/data/ce33c235a/a63eea805b5642ff87caa583e538c0bf [2023-11-19 04:59:40,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:59:40,028 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:59:40,030 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:59:40,030 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:59:40,034 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:59:40,035 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:59:40" (1/1) ... [2023-11-19 04:59:40,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d2817a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:40, skipping insertion in model container [2023-11-19 04:59:40,036 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:59:40" (1/1) ... [2023-11-19 04:59:40,067 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:59:40,269 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_06fc4da4-6e76-45c9-885d-337795ee33f7/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-15.i[915,928] [2023-11-19 04:59:40,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:59:40,319 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:59:40,331 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_06fc4da4-6e76-45c9-885d-337795ee33f7/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-15.i[915,928] [2023-11-19 04:59:40,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:59:40,375 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:59:40,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:40 WrapperNode [2023-11-19 04:59:40,376 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:59:40,377 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:59:40,377 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:59:40,378 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:59:40,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:40" (1/1) ... [2023-11-19 04:59:40,394 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:40" (1/1) ... [2023-11-19 04:59:40,434 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 93 [2023-11-19 04:59:40,435 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:59:40,435 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:59:40,436 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:59:40,436 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:59:40,446 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:40" (1/1) ... [2023-11-19 04:59:40,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:40" (1/1) ... [2023-11-19 04:59:40,449 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:40" (1/1) ... [2023-11-19 04:59:40,451 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:40" (1/1) ... [2023-11-19 04:59:40,456 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:40" (1/1) ... [2023-11-19 04:59:40,472 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:40" (1/1) ... [2023-11-19 04:59:40,474 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:40" (1/1) ... [2023-11-19 04:59:40,475 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:40" (1/1) ... [2023-11-19 04:59:40,479 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:59:40,480 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:59:40,480 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:59:40,480 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:59:40,481 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:40" (1/1) ... [2023-11-19 04:59:40,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:59:40,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:59:40,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:59:40,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:59:40,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:59:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:59:40,546 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:59:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:59:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:59:40,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:59:40,616 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:59:40,618 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:59:40,823 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:59:41,022 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:59:41,031 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:59:41,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:59:41 BoogieIcfgContainer [2023-11-19 04:59:41,036 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:59:41,038 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:59:41,038 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:59:41,041 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:59:41,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:59:40" (1/3) ... [2023-11-19 04:59:41,043 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391e48e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:59:41, skipping insertion in model container [2023-11-19 04:59:41,043 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:40" (2/3) ... [2023-11-19 04:59:41,043 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391e48e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:59:41, skipping insertion in model container [2023-11-19 04:59:41,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:59:41" (3/3) ... [2023-11-19 04:59:41,045 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-15.i [2023-11-19 04:59:41,064 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:59:41,064 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:59:41,111 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:59:41,118 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;@3f4811c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:59:41,118 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:59:41,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:59:41,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-19 04:59:41,131 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:59:41,132 INFO L195 NwaCegarLoop]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:59:41,132 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:59:41,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:59:41,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1366781354, now seen corresponding path program 1 times [2023-11-19 04:59:41,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:59:41,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378260312] [2023-11-19 04:59:41,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:59:41,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:59:41,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:59:41,357 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:59:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:59:41,487 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:59:41,489 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:59:41,490 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:59:41,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:59:41,499 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:59:41,509 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:59:41,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:59:41 BoogieIcfgContainer [2023-11-19 04:59:41,583 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:59:41,586 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:59:41,586 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:59:41,586 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:59:41,587 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:59:41" (3/4) ... [2023-11-19 04:59:41,591 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:59:41,592 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:59:41,594 INFO L158 Benchmark]: Toolchain (without parser) took 1565.23ms. Allocated memory is still 163.6MB. Free memory was 125.4MB in the beginning and 77.5MB in the end (delta: 47.9MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. [2023-11-19 04:59:41,594 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 130.0MB. Free memory is still 97.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:59:41,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.69ms. Allocated memory is still 163.6MB. Free memory was 125.4MB in the beginning and 125.8MB in the end (delta: -324.7kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 04:59:41,596 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.84ms. Allocated memory is still 163.6MB. Free memory was 125.8MB in the beginning and 124.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:59:41,597 INFO L158 Benchmark]: Boogie Preprocessor took 43.81ms. Allocated memory is still 163.6MB. Free memory was 124.3MB in the beginning and 122.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:59:41,607 INFO L158 Benchmark]: RCFGBuilder took 556.08ms. Allocated memory is still 163.6MB. Free memory was 122.4MB in the beginning and 100.6MB in the end (delta: 21.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 04:59:41,608 INFO L158 Benchmark]: TraceAbstraction took 545.20ms. Allocated memory is still 163.6MB. Free memory was 100.0MB in the beginning and 77.5MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 04:59:41,609 INFO L158 Benchmark]: Witness Printer took 6.59ms. Allocated memory is still 163.6MB. Free memory is still 77.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:59:41,614 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 130.0MB. Free memory is still 97.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.69ms. Allocated memory is still 163.6MB. Free memory was 125.4MB in the beginning and 125.8MB in the end (delta: -324.7kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.84ms. Allocated memory is still 163.6MB. Free memory was 125.8MB in the beginning and 124.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.81ms. Allocated memory is still 163.6MB. Free memory was 124.3MB in the beginning and 122.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 556.08ms. Allocated memory is still 163.6MB. Free memory was 122.4MB in the beginning and 100.6MB in the end (delta: 21.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 545.20ms. Allocated memory is still 163.6MB. Free memory was 100.0MB in the beginning and 77.5MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 6.59ms. Allocated memory is still 163.6MB. Free memory is still 77.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 83. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -128; [L23] unsigned short int var_1_3 = 16; [L24] unsigned long int var_1_7 = 1000; [L25] signed char var_1_8 = -4; [L26] signed short int var_1_9 = 2; [L27] unsigned char var_1_10 = 1; [L28] unsigned char var_1_11 = 0; [L29] double var_1_12 = 0.95; [L30] double var_1_13 = 9.8; [L31] signed short int last_1_var_1_9 = 2; [L32] unsigned char last_1_var_1_10 = 1; [L87] isInitial = 1 [L88] FCALL initially() [L89] int k_loop; [L90] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_3=16, var_1_7=1000, var_1_8=-4, var_1_9=2] [L90] COND TRUE k_loop < 1 [L91] CALL updateLastVariables() [L79] last_1_var_1_9 = var_1_9 [L80] last_1_var_1_10 = var_1_10 [L91] RET updateLastVariables() [L92] CALL updateVariables() [L63] var_1_3 = __VERIFIER_nondet_ushort() [L64] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_7=1000, var_1_8=-4, var_1_9=2] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_7=1000, var_1_8=-4, var_1_9=2] [L65] CALL assume_abort_if_not(var_1_3 <= 65535) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_7=1000, var_1_8=-4, var_1_9=2] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_3 <= 65535) VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_7=1000, var_1_8=-4, var_1_9=2] [L66] var_1_7 = __VERIFIER_nondet_ulong() [L67] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_7=65536, var_1_8=-4, var_1_9=2] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_7=65536, var_1_8=-4, var_1_9=2] [L68] CALL assume_abort_if_not(var_1_7 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_7=65536, var_1_8=-4, var_1_9=2] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_7 <= 4294967295) VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_7=65536, var_1_8=-4, var_1_9=2] [L69] var_1_8 = __VERIFIER_nondet_char() [L70] CALL assume_abort_if_not(var_1_8 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_7=65536, var_1_8=2, var_1_9=2] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_8 >= -127) VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_7=65536, var_1_8=2, var_1_9=2] [L71] CALL assume_abort_if_not(var_1_8 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_7=65536, var_1_8=2, var_1_9=2] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_8 <= 126) VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_7=65536, var_1_8=2, var_1_9=2] [L72] var_1_11 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_7=65536, var_1_8=2, var_1_9=2] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_7=65536, var_1_8=2, var_1_9=2] [L74] CALL assume_abort_if_not(var_1_11 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_7=65536, var_1_8=2, var_1_9=2] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_11 <= 0) VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_7=65536, var_1_8=2, var_1_9=2] [L75] var_1_13 = __VERIFIER_nondet_double() [L76] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=65541, var_1_1=-128, var_1_7=65536, var_1_8=2, var_1_9=2] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=65541, var_1_1=-128, var_1_7=65536, var_1_8=2, var_1_9=2] [L92] RET updateVariables() [L93] CALL step() [L36] signed long int stepLocal_2 = last_1_var_1_9; [L37] unsigned char stepLocal_1 = (- var_1_7) <= last_1_var_1_9; [L38] unsigned char stepLocal_0 = last_1_var_1_10; [L39] COND TRUE stepLocal_0 || ((~ last_1_var_1_9) >= last_1_var_1_9) [L40] COND FALSE !(last_1_var_1_9 < stepLocal_2) [L49] var_1_1 = var_1_8 [L54] var_1_10 = var_1_11 [L55] var_1_12 = var_1_13 [L56] COND FALSE !(\read(var_1_10)) [L93] RET step() [L94] CALL, EXPR property() [L83-L84] return ((((last_1_var_1_10 || ((~ last_1_var_1_9) >= last_1_var_1_9)) ? ((last_1_var_1_9 < last_1_var_1_9) ? ((! last_1_var_1_10) ? (((last_1_var_1_9 > last_1_var_1_9) && ((- var_1_7) <= last_1_var_1_9)) ? (var_1_1 == ((signed char) var_1_8)) : (var_1_1 == ((signed char) var_1_8))) : 1) : (var_1_1 == ((signed char) var_1_8))) : (var_1_1 == ((signed char) var_1_8))) && (var_1_10 ? ((((4131182089u - var_1_3) - 200u) < var_1_1) ? (var_1_9 == ((signed short int) var_1_8)) : 1) : 1)) && (var_1_10 == ((unsigned char) var_1_11))) && (var_1_12 == ((double) var_1_13)) ; [L94] RET, EXPR property() [L94] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=0, var_1_11=0, var_1_12=65541, var_1_13=65541, var_1_1=2, var_1_3=65535, var_1_7=65536, var_1_8=2, var_1_9=2] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=0, var_1_11=0, var_1_12=65541, var_1_13=65541, var_1_1=2, var_1_3=65535, var_1_7=65536, var_1_8=2, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 9, 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=23occurred 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, 36 NumberOfCodeBlocks, 36 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 [2023-11-19 04:59:41,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-15.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ --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 b8e52945473f8a7c8eae1b0fc6b7ff8d7bdd237133fbc5cccb42de41250f237e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:59:44,468 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:59:44,627 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:59:44,638 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:59:44,639 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:59:44,694 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:59:44,695 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:59:44,695 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:59:44,697 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:59:44,703 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:59:44,703 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:59:44,704 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:59:44,704 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:59:44,706 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:59:44,707 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:59:44,707 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:59:44,709 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:59:44,709 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:59:44,710 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:59:44,711 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:59:44,712 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:59:44,713 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:59:44,713 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:59:44,714 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:59:44,714 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:59:44,715 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:59:44,715 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:59:44,716 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:59:44,716 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:59:44,717 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:59:44,718 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:59:44,719 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:59:44,719 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:59:44,719 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:59:44,720 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:59:44,720 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:59:44,721 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:59:44,721 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:59:44,721 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:59:44,722 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:59:44,723 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:59:44,723 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:59:44,723 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_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8e52945473f8a7c8eae1b0fc6b7ff8d7bdd237133fbc5cccb42de41250f237e [2023-11-19 04:59:45,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:59:45,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:59:45,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:59:45,163 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:59:45,164 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:59:45,166 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-15.i [2023-11-19 04:59:48,465 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:59:48,775 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:59:48,777 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-15.i [2023-11-19 04:59:48,789 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/data/055a0cefe/16c3a9c6e310404f838186af56d137f8/FLAG22cf31b95 [2023-11-19 04:59:48,809 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/data/055a0cefe/16c3a9c6e310404f838186af56d137f8 [2023-11-19 04:59:48,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:59:48,818 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:59:48,823 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:59:48,823 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:59:48,829 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:59:48,830 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:59:48" (1/1) ... [2023-11-19 04:59:48,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bf99f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:48, skipping insertion in model container [2023-11-19 04:59:48,832 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:59:48" (1/1) ... [2023-11-19 04:59:48,877 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:59:49,081 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_06fc4da4-6e76-45c9-885d-337795ee33f7/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-15.i[915,928] [2023-11-19 04:59:49,153 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:59:49,178 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:59:49,200 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_06fc4da4-6e76-45c9-885d-337795ee33f7/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-15.i[915,928] [2023-11-19 04:59:49,232 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:59:49,257 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:59:49,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:49 WrapperNode [2023-11-19 04:59:49,258 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:59:49,260 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:59:49,260 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:59:49,260 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:59:49,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:49" (1/1) ... [2023-11-19 04:59:49,294 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:49" (1/1) ... [2023-11-19 04:59:49,334 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 92 [2023-11-19 04:59:49,335 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:59:49,336 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:59:49,337 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:59:49,337 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:59:49,347 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:49" (1/1) ... [2023-11-19 04:59:49,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:49" (1/1) ... [2023-11-19 04:59:49,358 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:49" (1/1) ... [2023-11-19 04:59:49,359 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:49" (1/1) ... [2023-11-19 04:59:49,375 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:49" (1/1) ... [2023-11-19 04:59:49,378 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:49" (1/1) ... [2023-11-19 04:59:49,381 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:49" (1/1) ... [2023-11-19 04:59:49,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:49" (1/1) ... [2023-11-19 04:59:49,387 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:59:49,388 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:59:49,388 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:59:49,389 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:59:49,390 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:49" (1/1) ... [2023-11-19 04:59:49,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:59:49,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:59:49,421 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:59:49,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:59:49,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:59:49,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:59:49,452 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:59:49,452 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:59:49,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:59:49,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:59:49,546 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:59:49,549 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:59:49,858 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:59:49,866 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:59:49,867 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:59:49,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:59:49 BoogieIcfgContainer [2023-11-19 04:59:49,871 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:59:49,875 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:59:49,875 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:59:49,879 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:59:49,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:59:48" (1/3) ... [2023-11-19 04:59:49,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2fb849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:59:49, skipping insertion in model container [2023-11-19 04:59:49,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:49" (2/3) ... [2023-11-19 04:59:49,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2fb849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:59:49, skipping insertion in model container [2023-11-19 04:59:49,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:59:49" (3/3) ... [2023-11-19 04:59:49,883 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-15.i [2023-11-19 04:59:49,905 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:59:49,906 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:59:49,973 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:59:49,981 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;@21316e9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:59:49,982 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:59:49,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:59:50,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 04:59:50,001 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:59:50,003 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:59:50,005 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:59:50,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:59:50,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1369718972, now seen corresponding path program 1 times [2023-11-19 04:59:50,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:59:50,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2037795483] [2023-11-19 04:59:50,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:59:50,034 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 [2023-11-19 04:59:50,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:59:50,037 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:59:50,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:59:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:59:50,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:59:50,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:59:50,343 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-19 04:59:50,345 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:59:50,346 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:59:50,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2037795483] [2023-11-19 04:59:50,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2037795483] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:59:50,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:59:50,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:59:50,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237719200] [2023-11-19 04:59:50,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:59:50,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:59:50,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:59:50,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:59:50,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:59:50,402 INFO L87 Difference]: Start difference. First operand has 41 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 04:59:50,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:59:50,447 INFO L93 Difference]: Finished difference Result 79 states and 122 transitions. [2023-11-19 04:59:50,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:59:50,450 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 62 [2023-11-19 04:59:50,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:59:50,460 INFO L225 Difference]: With dead ends: 79 [2023-11-19 04:59:50,460 INFO L226 Difference]: Without dead ends: 37 [2023-11-19 04:59:50,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:59:50,469 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:59:50,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:59:50,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-19 04:59:50,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-11-19 04:59:50,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:59:50,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 50 transitions. [2023-11-19 04:59:50,552 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 50 transitions. Word has length 62 [2023-11-19 04:59:50,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:59:50,553 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 50 transitions. [2023-11-19 04:59:50,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 04:59:50,554 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions. [2023-11-19 04:59:50,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 04:59:50,561 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:59:50,561 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:59:50,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:59:50,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:59:50,766 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:59:50,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:59:50,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1314089786, now seen corresponding path program 1 times [2023-11-19 04:59:50,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:59:50,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646868001] [2023-11-19 04:59:50,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:59:50,769 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 [2023-11-19 04:59:50,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:59:50,771 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:59:50,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:59:50,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:59:50,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:59:50,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:59:51,147 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 04:59:51,148 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:59:51,149 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:59:51,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [646868001] [2023-11-19 04:59:51,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [646868001] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:59:51,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:59:51,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:59:51,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083844138] [2023-11-19 04:59:51,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:59:51,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:59:51,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:59:51,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:59:51,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:59:51,158 INFO L87 Difference]: Start difference. First operand 37 states and 50 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 04:59:51,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:59:51,374 INFO L93 Difference]: Finished difference Result 105 states and 144 transitions. [2023-11-19 04:59:51,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:59:51,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 62 [2023-11-19 04:59:51,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:59:51,377 INFO L225 Difference]: With dead ends: 105 [2023-11-19 04:59:51,378 INFO L226 Difference]: Without dead ends: 71 [2023-11-19 04:59:51,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:59:51,380 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 42 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:59:51,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 174 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:59:51,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-19 04:59:51,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 60. [2023-11-19 04:59:51,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 39 states have internal predecessors, (46), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 04:59:51,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 82 transitions. [2023-11-19 04:59:51,398 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 82 transitions. Word has length 62 [2023-11-19 04:59:51,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:59:51,399 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 82 transitions. [2023-11-19 04:59:51,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 04:59:51,399 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 82 transitions. [2023-11-19 04:59:51,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-19 04:59:51,401 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:59:51,401 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:59:51,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:59:51,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:59:51,605 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:59:51,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:59:51,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1257039997, now seen corresponding path program 1 times [2023-11-19 04:59:51,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:59:51,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575559620] [2023-11-19 04:59:51,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:59:51,608 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 [2023-11-19 04:59:51,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:59:51,613 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:59:51,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 04:59:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:59:51,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 04:59:51,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:00:03,326 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-19 05:00:03,327 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:00:03,327 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:00:03,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575559620] [2023-11-19 05:00:03,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575559620] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:00:03,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:00:03,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-19 05:00:03,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178678327] [2023-11-19 05:00:03,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:00:03,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 05:00:03,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:00:03,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 05:00:03,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-19 05:00:03,331 INFO L87 Difference]: Start difference. First operand 60 states and 82 transitions. Second operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 05:00:05,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:00:05,815 INFO L93 Difference]: Finished difference Result 156 states and 203 transitions. [2023-11-19 05:00:05,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-19 05:00:05,816 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 63 [2023-11-19 05:00:05,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:00:05,819 INFO L225 Difference]: With dead ends: 156 [2023-11-19 05:00:05,819 INFO L226 Difference]: Without dead ends: 122 [2023-11-19 05:00:05,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=196, Invalid=616, Unknown=0, NotChecked=0, Total=812 [2023-11-19 05:00:05,822 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 117 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-19 05:00:05,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 309 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-19 05:00:05,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-11-19 05:00:05,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 94. [2023-11-19 05:00:05,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 64 states have (on average 1.109375) internal successors, (71), 65 states have internal predecessors, (71), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-19 05:00:05,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 115 transitions. [2023-11-19 05:00:05,845 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 115 transitions. Word has length 63 [2023-11-19 05:00:05,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:00:05,846 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 115 transitions. [2023-11-19 05:00:05,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 05:00:05,846 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 115 transitions. [2023-11-19 05:00:05,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 05:00:05,848 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:00:05,848 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:00:05,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 05:00:06,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:00:06,053 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:00:06,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:00:06,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1437898979, now seen corresponding path program 1 times [2023-11-19 05:00:06,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:00:06,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064432498] [2023-11-19 05:00:06,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:00:06,055 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 [2023-11-19 05:00:06,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:00:06,061 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:00:06,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 05:00:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:00:06,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:00:06,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:00:06,365 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 05:00:06,365 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:00:06,366 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:00:06,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064432498] [2023-11-19 05:00:06,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064432498] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:00:06,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:00:06,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:00:06,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938732518] [2023-11-19 05:00:06,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:00:06,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:00:06,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:00:06,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:00:06,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:00:06,369 INFO L87 Difference]: Start difference. First operand 94 states and 115 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:00:06,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:00:06,537 INFO L93 Difference]: Finished difference Result 135 states and 163 transitions. [2023-11-19 05:00:06,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:00:06,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 64 [2023-11-19 05:00:06,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:00:06,539 INFO L225 Difference]: With dead ends: 135 [2023-11-19 05:00:06,540 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 05:00:06,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:00:06,543 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 31 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:00:06,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 49 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:00:06,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 05:00:06,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 05:00:06,545 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) [2023-11-19 05:00:06,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 05:00:06,545 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2023-11-19 05:00:06,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:00:06,546 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 05:00:06,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:00:06,546 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 05:00:06,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 05:00:06,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:00:06,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-19 05:00:06,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:00:06,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 05:00:08,213 INFO L895 garLoopResultBuilder]: At program point L64(line 64) the Hoare annotation is: (let ((.cse0 (= ~var_1_9~0 (_ bv2 16))) (.cse1 (= ~last_1_var_1_9~0 (_ bv2 16))) (.cse2 (bvsle ((_ zero_extend 24) ~var_1_11~0) (_ bv0 32))) (.cse3 (let ((.cse6 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0))) (.cse5 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0))) (or (and (fp.leq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse5)) (fp.geq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse6))) (and (fp.leq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse6))) (fp.geq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse5))))))) (.cse4 (= currentRoundingMode roundNearestTiesToEven))) (or (and (= ~var_1_1~0 ~var_1_8~0) .cse0 .cse1 (= ~var_1_13~0 ~var_1_12~0) (= |ULTIMATE.start_property_#res#1| (_ bv1 32)) .cse2 .cse3 (= ~var_1_10~0 ~var_1_11~0) .cse4) (and .cse0 .cse1 .cse2 .cse3 (= ~last_1_var_1_10~0 (_ bv1 8)) .cse4 (= (_ bv1 8) ~var_1_10~0)))) [2023-11-19 05:00:08,214 INFO L895 garLoopResultBuilder]: At program point L64-1(line 64) the Hoare annotation is: (let ((.cse0 (= ~var_1_9~0 (_ bv2 16))) (.cse1 (= ~last_1_var_1_9~0 (_ bv2 16))) (.cse2 (bvsle ((_ zero_extend 24) ~var_1_11~0) (_ bv0 32))) (.cse3 (let ((.cse6 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0))) (.cse5 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0))) (or (and (fp.leq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse5)) (fp.geq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse6))) (and (fp.leq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse6))) (fp.geq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse5))))))) (.cse4 (= currentRoundingMode roundNearestTiesToEven))) (or (and (= ~var_1_1~0 ~var_1_8~0) .cse0 .cse1 (= ~var_1_13~0 ~var_1_12~0) (= |ULTIMATE.start_property_#res#1| (_ bv1 32)) .cse2 .cse3 (= ~var_1_10~0 ~var_1_11~0) .cse4) (and .cse0 .cse1 .cse2 .cse3 (= ~last_1_var_1_10~0 (_ bv1 8)) .cse4 (= (_ bv1 8) ~var_1_10~0)))) [2023-11-19 05:00:08,214 INFO L899 garLoopResultBuilder]: For program point L56(lines 56 60) no Hoare annotation was computed. [2023-11-19 05:00:08,214 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-19 05:00:08,214 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-19 05:00:08,214 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-19 05:00:08,215 INFO L895 garLoopResultBuilder]: At program point L73(line 73) the Hoare annotation is: (and (= ~var_1_9~0 (_ bv2 16)) (= ~last_1_var_1_9~0 (_ bv2 16)) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-19 05:00:08,215 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 86 98) no Hoare annotation was computed. [2023-11-19 05:00:08,215 INFO L895 garLoopResultBuilder]: At program point L73-1(line 73) the Hoare annotation is: (and (= ~var_1_9~0 (_ bv2 16)) (= ~last_1_var_1_9~0 (_ bv2 16)) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-19 05:00:08,215 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 50) no Hoare annotation was computed. [2023-11-19 05:00:08,215 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2023-11-19 05:00:08,215 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 05:00:08,216 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 05:00:08,216 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 59) no Hoare annotation was computed. [2023-11-19 05:00:08,216 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-19 05:00:08,216 INFO L899 garLoopResultBuilder]: For program point L90-2(lines 90 96) no Hoare annotation was computed. [2023-11-19 05:00:08,216 INFO L895 garLoopResultBuilder]: At program point L90-3(lines 90 96) the Hoare annotation is: (let ((.cse0 (= ~var_1_9~0 (_ bv2 16))) (.cse1 (= ~last_1_var_1_9~0 (_ bv2 16))) (.cse2 (bvsle ((_ zero_extend 24) ~var_1_11~0) (_ bv0 32))) (.cse3 (let ((.cse6 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0))) (.cse5 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0))) (or (and (fp.leq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse5)) (fp.geq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse6))) (and (fp.leq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse6))) (fp.geq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse5))))))) (.cse4 (= currentRoundingMode roundNearestTiesToEven))) (or (and (= ~var_1_1~0 ~var_1_8~0) .cse0 .cse1 (= ~var_1_13~0 ~var_1_12~0) (= |ULTIMATE.start_property_#res#1| (_ bv1 32)) .cse2 .cse3 (= ~var_1_10~0 ~var_1_11~0) .cse4) (and .cse0 .cse1 .cse2 .cse3 (= ~last_1_var_1_10~0 (_ bv1 8)) .cse4 (= (_ bv1 8) ~var_1_10~0)))) [2023-11-19 05:00:08,217 INFO L899 garLoopResultBuilder]: For program point L90-4(lines 90 96) no Hoare annotation was computed. [2023-11-19 05:00:08,217 INFO L899 garLoopResultBuilder]: For program point L78(lines 78 81) no Hoare annotation was computed. [2023-11-19 05:00:08,217 INFO L899 garLoopResultBuilder]: For program point property_returnLabel#1(lines 82 85) no Hoare annotation was computed. [2023-11-19 05:00:08,217 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2023-11-19 05:00:08,217 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 47) no Hoare annotation was computed. [2023-11-19 05:00:08,218 INFO L895 garLoopResultBuilder]: At program point L70(line 70) the Hoare annotation is: (and (= ~var_1_9~0 (_ bv2 16)) (= ~last_1_var_1_9~0 (_ bv2 16)) (bvsle ((_ zero_extend 24) ~var_1_11~0) (_ bv0 32)) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0))) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0))) (or (and (fp.leq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse0)) (fp.geq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse1))) (and (fp.leq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse1))) (fp.geq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse0)))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-19 05:00:08,218 INFO L895 garLoopResultBuilder]: At program point L70-1(line 70) the Hoare annotation is: (and (= ~var_1_9~0 (_ bv2 16)) (= ~last_1_var_1_9~0 (_ bv2 16)) (bvsle ((_ zero_extend 24) ~var_1_11~0) (_ bv0 32)) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0))) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0))) (or (and (fp.leq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse0)) (fp.geq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse1))) (and (fp.leq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse1))) (fp.geq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse0)))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-19 05:00:08,218 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 34) no Hoare annotation was computed. [2023-11-19 05:00:08,218 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 05:00:08,218 INFO L899 garLoopResultBuilder]: For program point L42(lines 42 46) no Hoare annotation was computed. [2023-11-19 05:00:08,218 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 05:00:08,219 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2023-11-19 05:00:08,219 INFO L895 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (let ((.cse0 (= ~var_1_9~0 (_ bv2 16))) (.cse1 (= ~last_1_var_1_9~0 (_ bv2 16))) (.cse2 (bvsle ((_ zero_extend 24) ~var_1_11~0) (_ bv0 32))) (.cse3 (let ((.cse6 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0))) (.cse5 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0))) (or (and (fp.leq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse5)) (fp.geq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse6))) (and (fp.leq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse6))) (fp.geq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse5))))))) (.cse4 (= currentRoundingMode roundNearestTiesToEven))) (or (and (= ~var_1_1~0 ~var_1_8~0) .cse0 .cse1 (= ~var_1_13~0 ~var_1_12~0) (= |ULTIMATE.start_property_#res#1| (_ bv1 32)) .cse2 .cse3 (= ~var_1_10~0 ~var_1_11~0) .cse4) (and .cse0 .cse1 .cse2 .cse3 (= ~last_1_var_1_10~0 (_ bv1 8)) .cse4 (= (_ bv1 8) ~var_1_10~0)))) [2023-11-19 05:00:08,219 INFO L895 garLoopResultBuilder]: At program point L67-1(line 67) the Hoare annotation is: (let ((.cse0 (= ~var_1_9~0 (_ bv2 16))) (.cse1 (= ~last_1_var_1_9~0 (_ bv2 16))) (.cse2 (bvsle ((_ zero_extend 24) ~var_1_11~0) (_ bv0 32))) (.cse3 (let ((.cse6 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0))) (.cse5 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0))) (or (and (fp.leq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse5)) (fp.geq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse6))) (and (fp.leq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse6))) (fp.geq ~var_1_13~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse5))))))) (.cse4 (= currentRoundingMode roundNearestTiesToEven))) (or (and (= ~var_1_1~0 ~var_1_8~0) .cse0 .cse1 (= ~var_1_13~0 ~var_1_12~0) (= |ULTIMATE.start_property_#res#1| (_ bv1 32)) .cse2 .cse3 (= ~var_1_10~0 ~var_1_11~0) .cse4) (and .cse0 .cse1 .cse2 .cse3 (= ~last_1_var_1_10~0 (_ bv1 8)) .cse4 (= (_ bv1 8) ~var_1_10~0)))) [2023-11-19 05:00:08,219 INFO L895 garLoopResultBuilder]: At program point L76(line 76) the Hoare annotation is: (and (= ~var_1_9~0 (_ bv2 16)) (= ~last_1_var_1_9~0 (_ bv2 16)) (bvsle ((_ zero_extend 24) ~var_1_11~0) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-19 05:00:08,220 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 62 77) no Hoare annotation was computed. [2023-11-19 05:00:08,220 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 53) no Hoare annotation was computed. [2023-11-19 05:00:08,220 INFO L899 garLoopResultBuilder]: For program point L39-1(lines 39 53) no Hoare annotation was computed. [2023-11-19 05:00:08,220 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2023-11-19 05:00:08,220 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 61) no Hoare annotation was computed. [2023-11-19 05:00:08,220 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-19 05:00:08,221 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-19 05:00:08,221 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-19 05:00:08,221 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-19 05:00:08,226 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 05:00:08,229 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:00:08,245 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-19 05:00:08,246 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-19 05:00:08,247 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-19 05:00:08,247 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-19 05:00:08,247 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-19 05:00:08,248 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-19 05:00:08,248 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-19 05:00:08,249 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-19 05:00:08,249 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-19 05:00:08,249 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-19 05:00:08,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:00:08 BoogieIcfgContainer [2023-11-19 05:00:08,251 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:00:08,251 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:00:08,252 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:00:08,252 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:00:08,253 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:59:49" (3/4) ... [2023-11-19 05:00:08,255 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 05:00:08,261 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-19 05:00:08,267 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-19 05:00:08,268 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 05:00:08,268 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 05:00:08,269 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 05:00:08,320 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((var_1_1 == var_1_8) && (var_1_9 == 2)) && (last_1_var_1_9 == 2)) && (var_1_13 == var_1_12)) && (\result == 1)) && (var_1_11 <= 0)) && (var_1_10 == var_1_11)) || (((((var_1_9 == 2) && (last_1_var_1_9 == 2)) && (var_1_11 <= 0)) && (last_1_var_1_10 == 1)) && (1 == var_1_10))) [2023-11-19 05:00:08,363 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((var_1_1 == var_1_8) && (var_1_9 == 2)) && (last_1_var_1_9 == 2)) && (var_1_13 == var_1_12)) && (\result == 1)) && (var_1_11 <= 0)) && (var_1_10 == var_1_11)) || (((((var_1_9 == 2) && (last_1_var_1_9 == 2)) && (var_1_11 <= 0)) && (last_1_var_1_10 == 1)) && (1 == var_1_10))) [2023-11-19 05:00:08,429 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 05:00:08,430 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 05:00:08,430 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:00:08,431 INFO L158 Benchmark]: Toolchain (without parser) took 19612.81ms. Allocated memory was 73.4MB in the beginning and 312.5MB in the end (delta: 239.1MB). Free memory was 50.4MB in the beginning and 285.7MB in the end (delta: -235.3MB). Peak memory consumption was 187.2MB. Max. memory is 16.1GB. [2023-11-19 05:00:08,431 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 73.4MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:00:08,432 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.19ms. Allocated memory is still 73.4MB. Free memory was 50.2MB in the beginning and 37.9MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 05:00:08,432 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.33ms. Allocated memory is still 73.4MB. Free memory was 37.6MB in the beginning and 35.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:00:08,433 INFO L158 Benchmark]: Boogie Preprocessor took 50.87ms. Allocated memory is still 73.4MB. Free memory was 35.9MB in the beginning and 34.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:00:08,434 INFO L158 Benchmark]: RCFGBuilder took 483.37ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 34.0MB in the beginning and 66.8MB in the end (delta: -32.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 05:00:08,434 INFO L158 Benchmark]: TraceAbstraction took 18376.29ms. Allocated memory was 96.5MB in the beginning and 312.5MB in the end (delta: 216.0MB). Free memory was 66.1MB in the beginning and 108.0MB in the end (delta: -41.9MB). Peak memory consumption was 174.1MB. Max. memory is 16.1GB. [2023-11-19 05:00:08,435 INFO L158 Benchmark]: Witness Printer took 178.71ms. Allocated memory is still 312.5MB. Free memory was 108.0MB in the beginning and 285.7MB in the end (delta: -177.8MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2023-11-19 05:00:08,438 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 73.4MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 436.19ms. Allocated memory is still 73.4MB. Free memory was 50.2MB in the beginning and 37.9MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.33ms. Allocated memory is still 73.4MB. Free memory was 37.6MB in the beginning and 35.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.87ms. Allocated memory is still 73.4MB. Free memory was 35.9MB in the beginning and 34.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 483.37ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 34.0MB in the beginning and 66.8MB in the end (delta: -32.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 18376.29ms. Allocated memory was 96.5MB in the beginning and 312.5MB in the end (delta: 216.0MB). Free memory was 66.1MB in the beginning and 108.0MB in the end (delta: -41.9MB). Peak memory consumption was 174.1MB. Max. memory is 16.1GB. * Witness Printer took 178.71ms. Allocated memory is still 312.5MB. Free memory was 108.0MB in the beginning and 285.7MB in the end (delta: -177.8MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated * 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, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.3s, OverallIterations: 4, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 191 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 190 mSDsluCounter, 586 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 395 mSDsCounter, 88 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 371 IncrementalHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 88 mSolverCounterUnsat, 191 mSDtfsCounter, 371 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 268 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=3, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 39 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 68 PreInvPairs, 88 NumberOfFragments, 694 HoareAnnotationTreeSize, 68 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 1009 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 12.1s InterpolantComputationTime, 251 NumberOfCodeBlocks, 251 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 247 ConstructedInterpolants, 0 QuantifiedInterpolants, 887 SizeOfPredicates, 21 NumberOfNonLiveVariables, 452 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 576/576 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: 90]: Loop Invariant Derived loop invariant: ((((((((var_1_1 == var_1_8) && (var_1_9 == 2)) && (last_1_var_1_9 == 2)) && (var_1_13 == var_1_12)) && (\result == 1)) && (var_1_11 <= 0)) && (var_1_10 == var_1_11)) || (((((var_1_9 == 2) && (last_1_var_1_9 == 2)) && (var_1_11 <= 0)) && (last_1_var_1_10 == 1)) && (1 == var_1_10))) RESULT: Ultimate proved your program to be correct! [2023-11-19 05:00:08,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fc4da4-6e76-45c9-885d-337795ee33f7/bin/utaipan-verify-t7M7D8N6sZ/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