./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-48.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-48.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91 --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 171a765531b95b232fbab2e745bfaf521ee849c63dff03ab59f51e1f7468f906 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:51:05,064 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:51:05,143 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-24 23:51:05,150 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:51:05,151 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:51:05,180 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:51:05,181 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:51:05,182 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:51:05,183 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:51:05,183 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:51:05,184 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:51:05,184 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:51:05,185 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:51:05,185 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:51:05,186 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:51:05,187 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:51:05,187 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:51:05,188 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:51:05,188 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:51:05,189 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:51:05,189 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:51:05,190 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:51:05,191 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:51:05,191 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:51:05,191 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:51:05,192 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:51:05,192 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:51:05,193 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:51:05,193 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:51:05,193 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:51:05,194 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:51:05,194 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:51:05,195 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:51:05,195 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:51:05,196 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:51:05,196 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:51:05,196 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:51:05,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:51:05,197 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:51:05,197 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:51:05,197 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:51:05,197 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:51:05,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:51:05,198 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:51:05,198 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:51:05,198 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:51:05,198 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:51:05,199 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_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 171a765531b95b232fbab2e745bfaf521ee849c63dff03ab59f51e1f7468f906 [2023-11-24 23:51:05,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:51:05,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:51:05,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:51:05,496 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:51:05,497 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:51:05,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-48.i [2023-11-24 23:51:08,631 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:51:08,843 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:51:08,843 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-48.i [2023-11-24 23:51:08,853 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/data/2447fd3fa/81ef0b93fe524aab84d99da9a97b8e2b/FLAG7718d937c [2023-11-24 23:51:08,876 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/data/2447fd3fa/81ef0b93fe524aab84d99da9a97b8e2b [2023-11-24 23:51:08,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:51:08,880 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:51:08,882 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:51:08,882 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:51:08,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:51:08,893 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:51:08" (1/1) ... [2023-11-24 23:51:08,894 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f20621c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:08, skipping insertion in model container [2023-11-24 23:51:08,895 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:51:08" (1/1) ... [2023-11-24 23:51:08,937 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:51:09,093 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_164e4d01-f704-48b0-8a4a-ae03ad8430a1/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-48.i[917,930] [2023-11-24 23:51:09,152 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:51:09,164 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:51:09,177 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_164e4d01-f704-48b0-8a4a-ae03ad8430a1/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-48.i[917,930] [2023-11-24 23:51:09,213 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:51:09,230 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:51:09,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:09 WrapperNode [2023-11-24 23:51:09,231 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:51:09,232 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:51:09,232 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:51:09,232 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:51:09,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:09" (1/1) ... [2023-11-24 23:51:09,248 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:09" (1/1) ... [2023-11-24 23:51:09,295 INFO L138 Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 146 [2023-11-24 23:51:09,296 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:51:09,296 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:51:09,296 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:51:09,297 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:51:09,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:09" (1/1) ... [2023-11-24 23:51:09,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:09" (1/1) ... [2023-11-24 23:51:09,311 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:09" (1/1) ... [2023-11-24 23:51:09,311 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:09" (1/1) ... [2023-11-24 23:51:09,323 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:09" (1/1) ... [2023-11-24 23:51:09,327 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:09" (1/1) ... [2023-11-24 23:51:09,331 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:09" (1/1) ... [2023-11-24 23:51:09,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:09" (1/1) ... [2023-11-24 23:51:09,339 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:51:09,340 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:51:09,341 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:51:09,341 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:51:09,347 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:09" (1/1) ... [2023-11-24 23:51:09,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:51:09,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:51:09,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:51:09,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:51:09,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:51:09,447 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:51:09,447 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:51:09,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:51:09,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:51:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:51:09,587 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:51:09,590 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:51:10,084 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:51:10,317 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:51:10,317 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:51:10,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:51:10 BoogieIcfgContainer [2023-11-24 23:51:10,319 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:51:10,323 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:51:10,324 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:51:10,328 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:51:10,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:51:08" (1/3) ... [2023-11-24 23:51:10,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef03214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:51:10, skipping insertion in model container [2023-11-24 23:51:10,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:09" (2/3) ... [2023-11-24 23:51:10,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef03214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:51:10, skipping insertion in model container [2023-11-24 23:51:10,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:51:10" (3/3) ... [2023-11-24 23:51:10,333 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-48.i [2023-11-24 23:51:10,355 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:51:10,355 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:51:10,424 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:51:10,431 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;@1162c208, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:51:10,431 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:51:10,435 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-24 23:51:10,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-24 23:51:10,446 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:51:10,447 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:51:10,447 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:51:10,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:51:10,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1729085466, now seen corresponding path program 1 times [2023-11-24 23:51:10,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:51:10,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390026162] [2023-11-24 23:51:10,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:51:10,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:51:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:51:10,952 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:51:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:51:11,347 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:51:11,350 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:51:11,351 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 23:51:11,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:51:11,362 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 23:51:11,370 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:51:11,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:51:11 BoogieIcfgContainer [2023-11-24 23:51:11,500 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:51:11,501 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:51:11,501 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:51:11,501 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:51:11,501 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:51:10" (3/4) ... [2023-11-24 23:51:11,504 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:51:11,505 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:51:11,506 INFO L158 Benchmark]: Toolchain (without parser) took 2625.44ms. Allocated memory was 121.6MB in the beginning and 163.6MB in the end (delta: 41.9MB). Free memory was 75.8MB in the beginning and 117.3MB in the end (delta: -41.4MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2023-11-24 23:51:11,507 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 121.6MB. Free memory is still 92.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:51:11,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.67ms. Allocated memory is still 121.6MB. Free memory was 75.8MB in the beginning and 61.8MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 23:51:11,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.58ms. Allocated memory is still 121.6MB. Free memory was 61.4MB in the beginning and 58.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:51:11,511 INFO L158 Benchmark]: Boogie Preprocessor took 43.33ms. Allocated memory is still 121.6MB. Free memory was 58.2MB in the beginning and 56.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:51:11,516 INFO L158 Benchmark]: RCFGBuilder took 978.78ms. Allocated memory was 121.6MB in the beginning and 163.6MB in the end (delta: 41.9MB). Free memory was 56.1MB in the beginning and 111.7MB in the end (delta: -55.5MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2023-11-24 23:51:11,519 INFO L158 Benchmark]: TraceAbstraction took 1176.72ms. Allocated memory is still 163.6MB. Free memory was 110.8MB in the beginning and 117.3MB in the end (delta: -6.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-24 23:51:11,519 INFO L158 Benchmark]: Witness Printer took 4.37ms. Allocated memory is still 163.6MB. Free memory is still 117.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:51:11,524 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 121.6MB. Free memory is still 92.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.67ms. Allocated memory is still 121.6MB. Free memory was 75.8MB in the beginning and 61.8MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.58ms. Allocated memory is still 121.6MB. Free memory was 61.4MB in the beginning and 58.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.33ms. Allocated memory is still 121.6MB. Free memory was 58.2MB in the beginning and 56.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 978.78ms. Allocated memory was 121.6MB in the beginning and 163.6MB in the end (delta: 41.9MB). Free memory was 56.1MB in the beginning and 111.7MB in the end (delta: -55.5MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1176.72ms. Allocated memory is still 163.6MB. Free memory was 110.8MB in the beginning and 117.3MB in the end (delta: -6.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 4.37ms. Allocated memory is still 163.6MB. Free memory is still 117.3MB. 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 45. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 10; [L23] unsigned char var_1_2 = 1; [L24] double var_1_3 = 0.0; [L25] double var_1_4 = 128.2; [L26] double var_1_5 = 50.1; [L27] double var_1_6 = 64.5; [L28] unsigned short int var_1_7 = 1; [L29] unsigned char var_1_8 = 5; [L30] double var_1_9 = 15.35; [L31] unsigned char var_1_10 = 10; [L32] unsigned char var_1_11 = 2; [L33] signed long int var_1_12 = 32; [L34] signed long int var_1_13 = 256; [L35] signed char var_1_14 = 1; [L36] unsigned char var_1_15 = 128; [L37] unsigned char var_1_16 = 0; [L38] signed char var_1_17 = -64; [L39] unsigned short int var_1_18 = 64; [L40] signed long int var_1_19 = 128; [L141] isInitial = 1 [L142] FCALL initially() [L143] COND TRUE 1 [L144] FCALL updateLastVariables() [L145] CALL updateVariables() [L98] var_1_2 = __VERIFIER_nondet_uchar() [L99] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_3=0, var_1_4=641/5, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_3=0, var_1_4=641/5, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L100] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_3=0, var_1_4=641/5, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_3=0, var_1_4=641/5, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L101] var_1_3 = __VERIFIER_nondet_double() [L102] CALL assume_abort_if_not((var_1_3 >= 4611686.018427387900e+12F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_4=641/5, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not((var_1_3 >= 4611686.018427387900e+12F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_4=641/5, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L103] var_1_4 = __VERIFIER_nondet_double() [L104] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 4611686.018427387900e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 4611686.018427387900e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L105] var_1_5 = __VERIFIER_nondet_double() [L106] CALL assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L107] var_1_6 = __VERIFIER_nondet_double() [L108] CALL assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=1, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=1, var_1_8=5, var_1_9=307/20] [L109] var_1_7 = __VERIFIER_nondet_ushort() [L110] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_8=5, var_1_9=307/20] [L111] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5, var_1_9=307/20] [L112] var_1_9 = __VERIFIER_nondet_double() [L113] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L114] CALL assume_abort_if_not(var_1_9 != 0.0F) VAL [\old(cond)=1, isInitial=1, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(var_1_9 != 0.0F) VAL [isInitial=1, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L115] var_1_10 = __VERIFIER_nondet_uchar() [L116] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L117] CALL assume_abort_if_not(var_1_10 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not(var_1_10 <= 254) VAL [isInitial=1, var_1_10=127, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L118] var_1_11 = __VERIFIER_nondet_uchar() [L119] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L20] COND FALSE !(!cond) [L119] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=127, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L120] CALL assume_abort_if_not(var_1_11 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=0, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L20] COND FALSE !(!cond) [L120] RET assume_abort_if_not(var_1_11 <= 254) VAL [isInitial=1, var_1_10=127, var_1_11=0, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L121] var_1_15 = __VERIFIER_nondet_uchar() [L122] CALL assume_abort_if_not(var_1_15 >= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=0, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L20] COND FALSE !(!cond) [L122] RET assume_abort_if_not(var_1_15 >= 127) VAL [isInitial=1, var_1_10=127, var_1_11=0, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L123] CALL assume_abort_if_not(var_1_15 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=0, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L20] COND FALSE !(!cond) [L123] RET assume_abort_if_not(var_1_15 <= 255) VAL [isInitial=1, var_1_10=127, var_1_11=0, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L124] var_1_16 = __VERIFIER_nondet_uchar() [L125] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=0, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L20] COND FALSE !(!cond) [L125] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, var_1_10=127, var_1_11=0, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L126] CALL assume_abort_if_not(var_1_16 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=0, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=126, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L20] COND FALSE !(!cond) [L126] RET assume_abort_if_not(var_1_16 <= 127) VAL [isInitial=1, var_1_10=127, var_1_11=0, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=126, var_1_17=-64, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L127] var_1_17 = __VERIFIER_nondet_char() [L128] CALL assume_abort_if_not(var_1_17 >= -126) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=0, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=126, var_1_17=126, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L20] COND FALSE !(!cond) [L128] RET assume_abort_if_not(var_1_17 >= -126) VAL [isInitial=1, var_1_10=127, var_1_11=0, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=126, var_1_17=126, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L129] CALL assume_abort_if_not(var_1_17 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=0, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=126, var_1_17=126, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L20] COND FALSE !(!cond) [L129] RET assume_abort_if_not(var_1_17 <= 126) VAL [isInitial=1, var_1_10=127, var_1_11=0, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=126, var_1_17=126, var_1_18=64, var_1_19=128, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L130] var_1_19 = __VERIFIER_nondet_long() [L131] CALL assume_abort_if_not(var_1_19 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=0, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=126, var_1_17=126, var_1_18=64, var_1_19=0, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L20] COND FALSE !(!cond) [L131] RET assume_abort_if_not(var_1_19 >= -2147483648) VAL [isInitial=1, var_1_10=127, var_1_11=0, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=126, var_1_17=126, var_1_18=64, var_1_19=0, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L132] CALL assume_abort_if_not(var_1_19 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=0, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=126, var_1_17=126, var_1_18=64, var_1_19=0, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L20] COND FALSE !(!cond) [L132] RET assume_abort_if_not(var_1_19 <= 2147483647) VAL [isInitial=1, var_1_10=127, var_1_11=0, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=126, var_1_17=126, var_1_18=64, var_1_19=0, var_1_1=10, var_1_2=0, var_1_7=0, var_1_8=5] [L145] RET updateVariables() [L146] CALL step() [L44] COND FALSE !(\read(var_1_2)) [L51] var_1_1 = 1 [L53] unsigned short int stepLocal_0 = var_1_7; [L54] COND FALSE !(var_1_6 > (var_1_5 / ((((var_1_3) > (var_1_9)) ? (var_1_3) : (var_1_9))))) [L57] COND FALSE !(var_1_1 <= stepLocal_0) [L60] var_1_8 = var_1_11 [L63] COND FALSE !(\read(var_1_2)) [L72] var_1_12 = var_1_8 [L74] COND FALSE !(\read(var_1_2)) [L77] signed long int stepLocal_1 = ((((var_1_15 - var_1_16)) > (var_1_13)) ? ((var_1_15 - var_1_16)) : (var_1_13)); [L78] COND FALSE !(var_1_10 == stepLocal_1) [L81] var_1_14 = var_1_17 [L83] COND TRUE var_1_7 == var_1_12 [L84] var_1_18 = (var_1_10 + ((((var_1_8) < (var_1_16)) ? (var_1_8) : (var_1_16)))) [L146] RET step() [L147] CALL, EXPR property() [L137-L138] return (((((var_1_2 ? ((((var_1_3 - var_1_4) - var_1_5) == (15.75 - var_1_6)) ? (var_1_1 == ((unsigned short int) (5 + var_1_7))) : (var_1_1 == ((unsigned short int) var_1_7))) : (var_1_1 == ((unsigned short int) 1))) && ((var_1_6 > (var_1_5 / ((((var_1_3) > (var_1_9)) ? (var_1_3) : (var_1_9))))) ? (var_1_8 == ((unsigned char) ((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10))))) : ((var_1_1 <= var_1_7) ? (var_1_8 == ((unsigned char) var_1_10)) : (var_1_8 == ((unsigned char) var_1_11))))) && (var_1_2 ? ((-128 > var_1_10) ? ((var_1_3 >= (2.75 / var_1_9)) ? (var_1_12 == ((signed long int) (var_1_11 + (var_1_1 + var_1_10)))) : (var_1_12 == ((signed long int) var_1_1))) : 1) : (var_1_12 == ((signed long int) var_1_8)))) && (var_1_2 ? (var_1_13 == ((signed long int) var_1_11)) : 1)) && ((var_1_10 == (((((var_1_15 - var_1_16)) > (var_1_13)) ? ((var_1_15 - var_1_16)) : (var_1_13)))) ? (var_1_14 == ((signed char) ((((var_1_17) < 0 ) ? -(var_1_17) : (var_1_17))))) : (var_1_14 == ((signed char) var_1_17)))) && ((var_1_7 == var_1_12) ? (var_1_18 == ((unsigned short int) (var_1_10 + ((((var_1_8) < (var_1_16)) ? (var_1_8) : (var_1_16)))))) : ((var_1_14 != var_1_16) ? ((-256 >= var_1_19) ? (var_1_18 == ((unsigned short int) var_1_16)) : (var_1_18 == ((unsigned short int) var_1_15))) : (var_1_18 == ((unsigned short int) var_1_10)))) ; [L147] RET, EXPR property() [L147] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=127, var_1_11=0, var_1_12=0, var_1_13=256, var_1_14=126, var_1_15=127, var_1_16=126, var_1_17=126, var_1_18=127, var_1_19=0, var_1_1=1, var_1_2=0, var_1_7=0, var_1_8=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=127, var_1_11=0, var_1_12=0, var_1_13=256, var_1_14=126, var_1_15=127, var_1_16=126, var_1_17=126, var_1_18=127, var_1_19=0, var_1_1=1, var_1_2=0, var_1_7=0, var_1_8=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 22, 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=44occurred 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, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 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 [2023-11-24 23:51:11,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-48.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91 --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 171a765531b95b232fbab2e745bfaf521ee849c63dff03ab59f51e1f7468f906 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:51:14,270 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:51:14,362 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-24 23:51:14,371 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:51:14,372 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:51:14,421 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:51:14,421 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:51:14,422 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:51:14,423 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:51:14,428 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:51:14,428 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:51:14,429 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:51:14,429 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:51:14,431 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:51:14,431 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:51:14,432 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:51:14,433 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:51:14,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:51:14,434 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:51:14,435 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:51:14,435 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:51:14,436 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:51:14,436 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:51:14,437 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:51:14,437 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:51:14,438 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:51:14,438 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:51:14,439 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:51:14,439 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:51:14,440 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:51:14,441 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:51:14,441 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:51:14,442 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:51:14,442 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:51:14,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:51:14,443 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:51:14,443 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:51:14,443 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:51:14,444 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:51:14,445 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:51:14,445 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:51:14,446 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:51:14,446 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:51:14,446 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:51:14,447 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_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 171a765531b95b232fbab2e745bfaf521ee849c63dff03ab59f51e1f7468f906 [2023-11-24 23:51:14,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:51:14,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:51:14,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:51:14,888 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:51:14,889 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:51:14,890 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-48.i [2023-11-24 23:51:17,984 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:51:18,293 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:51:18,295 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-48.i [2023-11-24 23:51:18,308 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/data/5b97fe8b6/c80439f0931d452095158f2f2f8f8e54/FLAGfaf4ae46e [2023-11-24 23:51:18,328 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/data/5b97fe8b6/c80439f0931d452095158f2f2f8f8e54 [2023-11-24 23:51:18,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:51:18,336 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:51:18,341 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:51:18,341 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:51:18,347 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:51:18,348 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:51:18" (1/1) ... [2023-11-24 23:51:18,349 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eec0cc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:18, skipping insertion in model container [2023-11-24 23:51:18,350 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:51:18" (1/1) ... [2023-11-24 23:51:18,398 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:51:18,598 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_164e4d01-f704-48b0-8a4a-ae03ad8430a1/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-48.i[917,930] [2023-11-24 23:51:18,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:51:18,715 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:51:18,732 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_164e4d01-f704-48b0-8a4a-ae03ad8430a1/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-48.i[917,930] [2023-11-24 23:51:18,789 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:51:18,818 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:51:18,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:18 WrapperNode [2023-11-24 23:51:18,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:51:18,821 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:51:18,821 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:51:18,821 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:51:18,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:18" (1/1) ... [2023-11-24 23:51:18,845 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:18" (1/1) ... [2023-11-24 23:51:18,879 INFO L138 Inliner]: procedures = 27, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 144 [2023-11-24 23:51:18,879 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:51:18,880 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:51:18,880 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:51:18,880 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:51:18,890 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:18" (1/1) ... [2023-11-24 23:51:18,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:18" (1/1) ... [2023-11-24 23:51:18,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:18" (1/1) ... [2023-11-24 23:51:18,903 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:18" (1/1) ... [2023-11-24 23:51:18,915 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:18" (1/1) ... [2023-11-24 23:51:18,918 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:18" (1/1) ... [2023-11-24 23:51:18,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:18" (1/1) ... [2023-11-24 23:51:18,930 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:18" (1/1) ... [2023-11-24 23:51:18,934 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:51:18,945 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:51:18,947 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:51:18,948 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:51:18,949 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:18" (1/1) ... [2023-11-24 23:51:18,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:51:18,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:51:18,995 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:51:19,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:51:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:51:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:51:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:51:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:51:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:51:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:51:19,131 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:51:19,134 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:51:33,114 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:51:33,171 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:51:33,172 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:51:33,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:51:33 BoogieIcfgContainer [2023-11-24 23:51:33,172 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:51:33,175 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:51:33,175 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:51:33,178 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:51:33,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:51:18" (1/3) ... [2023-11-24 23:51:33,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7221ac57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:51:33, skipping insertion in model container [2023-11-24 23:51:33,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:18" (2/3) ... [2023-11-24 23:51:33,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7221ac57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:51:33, skipping insertion in model container [2023-11-24 23:51:33,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:51:33" (3/3) ... [2023-11-24 23:51:33,182 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-48.i [2023-11-24 23:51:33,202 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:51:33,203 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:51:33,274 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:51:33,282 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;@1d681dc5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:51:33,282 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:51:33,287 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 38 states have internal predecessors, (54), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-24 23:51:33,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-24 23:51:33,303 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:51:33,304 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:51:33,305 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:51:33,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:51:33,311 INFO L85 PathProgramCache]: Analyzing trace with hash 2026356256, now seen corresponding path program 1 times [2023-11-24 23:51:33,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:51:33,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687886404] [2023-11-24 23:51:33,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:51:33,327 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 [2023-11-24 23:51:33,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:51:33,369 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:51:33,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:51:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:51:35,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:51:35,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:51:35,405 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2023-11-24 23:51:35,405 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:51:35,406 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:51:35,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687886404] [2023-11-24 23:51:35,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687886404] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:51:35,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:51:35,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:51:35,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646227087] [2023-11-24 23:51:35,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:51:35,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 23:51:35,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:51:35,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 23:51:35,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:51:35,451 INFO L87 Difference]: Start difference. First operand has 62 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 38 states have internal predecessors, (54), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-24 23:51:39,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:51:39,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:51:39,301 INFO L93 Difference]: Finished difference Result 120 states and 214 transitions. [2023-11-24 23:51:39,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 23:51:39,760 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 136 [2023-11-24 23:51:39,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:51:39,770 INFO L225 Difference]: With dead ends: 120 [2023-11-24 23:51:39,770 INFO L226 Difference]: Without dead ends: 59 [2023-11-24 23:51:39,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:51:39,779 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:51:39,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2023-11-24 23:51:39,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-24 23:51:39,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-11-24 23:51:39,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 35 states have internal predecessors, (46), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-24 23:51:39,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 90 transitions. [2023-11-24 23:51:39,858 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 90 transitions. Word has length 136 [2023-11-24 23:51:39,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:51:39,859 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 90 transitions. [2023-11-24 23:51:39,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-24 23:51:39,861 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 90 transitions. [2023-11-24 23:51:39,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-24 23:51:39,874 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:51:39,874 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:51:39,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:51:40,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:51:40,102 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:51:40,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:51:40,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1592598632, now seen corresponding path program 1 times [2023-11-24 23:51:40,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:51:40,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881012706] [2023-11-24 23:51:40,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:51:40,104 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 [2023-11-24 23:51:40,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:51:40,108 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:51:40,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:51:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:51:42,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 23:51:42,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:51:42,425 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-24 23:51:42,425 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:51:42,426 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:51:42,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881012706] [2023-11-24 23:51:42,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881012706] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:51:42,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:51:42,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:51:42,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033361152] [2023-11-24 23:51:42,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:51:42,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:51:42,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:51:42,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:51:42,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:51:42,431 INFO L87 Difference]: Start difference. First operand 59 states and 90 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-24 23:51:46,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.88s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:51:48,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:51:50,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:51:50,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:51:50,988 INFO L93 Difference]: Finished difference Result 133 states and 203 transitions. [2023-11-24 23:51:50,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:51:50,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 136 [2023-11-24 23:51:50,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:51:50,992 INFO L225 Difference]: With dead ends: 133 [2023-11-24 23:51:50,993 INFO L226 Difference]: Without dead ends: 75 [2023-11-24 23:51:50,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:51:50,996 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 20 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-11-24 23:51:50,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 164 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 3 Unknown, 0 Unchecked, 8.5s Time] [2023-11-24 23:51:50,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-24 23:51:51,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 64. [2023-11-24 23:51:51,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 40 states have (on average 1.325) internal successors, (53), 40 states have internal predecessors, (53), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-24 23:51:51,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 97 transitions. [2023-11-24 23:51:51,011 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 97 transitions. Word has length 136 [2023-11-24 23:51:51,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:51:51,013 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 97 transitions. [2023-11-24 23:51:51,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-24 23:51:51,014 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 97 transitions. [2023-11-24 23:51:51,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-24 23:51:51,016 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:51:51,016 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:51:51,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:51:51,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:51:51,240 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:51:51,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:51:51,241 INFO L85 PathProgramCache]: Analyzing trace with hash -927361302, now seen corresponding path program 1 times [2023-11-24 23:51:51,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:51:51,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [607415335] [2023-11-24 23:51:51,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:51:51,242 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 [2023-11-24 23:51:51,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:51:51,244 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:51:51,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:51:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:51:53,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:51:53,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:51:56,703 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-24 23:51:56,704 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:51:56,704 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:51:56,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [607415335] [2023-11-24 23:51:56,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [607415335] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:51:56,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:51:56,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:51:56,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001123033] [2023-11-24 23:51:56,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:51:56,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:51:56,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:51:56,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:51:56,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:51:56,709 INFO L87 Difference]: Start difference. First operand 64 states and 97 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-24 23:52:00,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:52:02,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:52:04,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:52:06,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:52:08,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:52:09,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:52:09,236 INFO L93 Difference]: Finished difference Result 190 states and 289 transitions. [2023-11-24 23:52:09,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:52:09,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 136 [2023-11-24 23:52:09,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:52:09,243 INFO L225 Difference]: With dead ends: 190 [2023-11-24 23:52:09,244 INFO L226 Difference]: Without dead ends: 127 [2023-11-24 23:52:09,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:52:09,247 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 28 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:52:09,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 253 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 5 Unknown, 0 Unchecked, 12.4s Time] [2023-11-24 23:52:09,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-11-24 23:52:09,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2023-11-24 23:52:09,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 78 states have (on average 1.3205128205128205) internal successors, (103), 78 states have internal predecessors, (103), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-24 23:52:09,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 191 transitions. [2023-11-24 23:52:09,279 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 191 transitions. Word has length 136 [2023-11-24 23:52:09,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:52:09,281 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 191 transitions. [2023-11-24 23:52:09,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-24 23:52:09,281 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 191 transitions. [2023-11-24 23:52:09,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-24 23:52:09,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:52:09,284 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:52:09,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:52:09,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:52:09,509 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:52:09,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:52:09,510 INFO L85 PathProgramCache]: Analyzing trace with hash -925514260, now seen corresponding path program 1 times [2023-11-24 23:52:09,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:52:09,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [380444245] [2023-11-24 23:52:09,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:09,511 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 [2023-11-24 23:52:09,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:52:09,513 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:52:09,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164e4d01-f704-48b0-8a4a-ae03ad8430a1/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:52:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:11,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:52:11,488 INFO L285 TraceCheckSpWp]: Computing forward predicates...