./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-87.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-87.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E --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 1d6740d93249b8004eae6c6ec99a57fdd342d0b18a807811334b011905a57c0b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:18:47,225 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:18:47,317 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:18:47,324 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:18:47,324 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:18:47,355 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:18:47,356 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:18:47,357 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:18:47,358 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:18:47,358 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:18:47,359 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:18:47,359 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:18:47,359 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:18:47,359 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:18:47,360 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:18:47,360 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:18:47,360 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:18:47,360 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:18:47,360 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:18:47,360 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:18:47,360 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:18:47,361 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:18:47,361 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:18:47,361 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:18:47,361 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:18:47,362 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:18:47,362 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:18:47,362 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:18:47,362 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:18:47,362 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:18:47,362 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:18:47,362 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:18:47,362 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:18:47,362 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:18:47,363 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:18:47,363 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:18:47,363 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:18:47,363 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:18:47,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:18:47,363 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:18:47,363 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:18:47,363 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:18:47,364 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:18:47,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:18:47,364 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:18:47,364 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:18:47,364 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:18:47,364 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E 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 -> 1d6740d93249b8004eae6c6ec99a57fdd342d0b18a807811334b011905a57c0b [2024-11-14 05:18:47,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:18:47,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:18:47,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:18:47,696 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:18:47,697 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:18:47,699 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-87.i Unable to find full path for "g++" [2024-11-14 05:18:49,609 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:18:49,931 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:18:49,935 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-87.i [2024-11-14 05:18:49,948 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/data/024ac7ca8/2a2776c8ca31489ebe48a4f4fba0ea4d/FLAG664e76deb [2024-11-14 05:18:49,966 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/data/024ac7ca8/2a2776c8ca31489ebe48a4f4fba0ea4d [2024-11-14 05:18:49,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:18:49,970 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:18:49,971 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:18:49,971 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:18:49,976 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:18:49,976 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:18:49" (1/1) ... [2024-11-14 05:18:49,977 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@452aaf1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:49, skipping insertion in model container [2024-11-14 05:18:49,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:18:49" (1/1) ... [2024-11-14 05:18:49,993 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:18:50,150 WARN L250 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_79feeb44-bc51-4b0a-8867-51e988abedcc/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-87.i[915,928] [2024-11-14 05:18:50,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:18:50,198 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:18:50,207 WARN L250 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_79feeb44-bc51-4b0a-8867-51e988abedcc/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-87.i[915,928] [2024-11-14 05:18:50,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:18:50,247 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:18:50,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:50 WrapperNode [2024-11-14 05:18:50,248 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:18:50,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:18:50,249 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:18:50,249 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:18:50,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:50" (1/1) ... [2024-11-14 05:18:50,269 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:50" (1/1) ... [2024-11-14 05:18:50,304 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 125 [2024-11-14 05:18:50,305 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:18:50,305 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:18:50,305 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:18:50,305 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:18:50,316 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:50" (1/1) ... [2024-11-14 05:18:50,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:50" (1/1) ... [2024-11-14 05:18:50,318 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:50" (1/1) ... [2024-11-14 05:18:50,318 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:50" (1/1) ... [2024-11-14 05:18:50,326 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:50" (1/1) ... [2024-11-14 05:18:50,330 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:50" (1/1) ... [2024-11-14 05:18:50,331 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:50" (1/1) ... [2024-11-14 05:18:50,332 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:50" (1/1) ... [2024-11-14 05:18:50,334 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:18:50,335 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:18:50,335 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:18:50,335 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:18:50,336 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:50" (1/1) ... [2024-11-14 05:18:50,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:18:50,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:18:50,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:18:50,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:18:50,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:18:50,396 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:18:50,397 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:18:50,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:18:50,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:18:50,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:18:50,482 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:18:50,485 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:18:50,853 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-14 05:18:50,853 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:18:51,100 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:18:51,104 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:18:51,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:18:51 BoogieIcfgContainer [2024-11-14 05:18:51,105 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:18:51,107 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:18:51,110 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:18:51,114 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:18:51,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:18:49" (1/3) ... [2024-11-14 05:18:51,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10005f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:18:51, skipping insertion in model container [2024-11-14 05:18:51,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:50" (2/3) ... [2024-11-14 05:18:51,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10005f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:18:51, skipping insertion in model container [2024-11-14 05:18:51,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:18:51" (3/3) ... [2024-11-14 05:18:51,117 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-87.i [2024-11-14 05:18:51,130 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:18:51,132 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-87.i that has 2 procedures, 30 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:18:51,190 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:18:51,204 INFO L333 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, 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;@7ed77c0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:18:51,205 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:18:51,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 05:18:51,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-14 05:18:51,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:18:51,217 INFO L215 NwaCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:18:51,217 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:18:51,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:18:51,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1292188679, now seen corresponding path program 1 times [2024-11-14 05:18:51,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:18:51,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894637023] [2024-11-14 05:18:51,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:18:51,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:18:51,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:18:51,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [293656046] [2024-11-14 05:18:51,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:18:51,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:18:51,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:18:51,607 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:18:51,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:18:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:18:51,819 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:18:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:18:51,995 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 05:18:51,997 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:18:51,998 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 05:18:52,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:18:52,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 05:18:52,203 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 05:18:52,247 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:18:52,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:18:52 BoogieIcfgContainer [2024-11-14 05:18:52,250 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:18:52,251 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:18:52,251 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:18:52,251 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:18:52,251 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:18:51" (3/4) ... [2024-11-14 05:18:52,254 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 05:18:52,255 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:18:52,256 INFO L158 Benchmark]: Toolchain (without parser) took 2285.88ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 99.0MB in the end (delta: 20.0MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2024-11-14 05:18:52,256 INFO L158 Benchmark]: CDTParser took 1.27ms. Allocated memory is still 167.8MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:18:52,256 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.46ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 106.4MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:18:52,257 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.62ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 104.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:18:52,257 INFO L158 Benchmark]: Boogie Preprocessor took 29.27ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 103.5MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:18:52,258 INFO L158 Benchmark]: RCFGBuilder took 769.65ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 69.7MB in the end (delta: 33.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-14 05:18:52,258 INFO L158 Benchmark]: TraceAbstraction took 1143.05ms. Allocated memory is still 142.6MB. Free memory was 69.3MB in the beginning and 99.1MB in the end (delta: -29.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:18:52,258 INFO L158 Benchmark]: Witness Printer took 4.11ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 99.0MB in the end (delta: 27.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:18:52,261 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.27ms. Allocated memory is still 167.8MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.46ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 106.4MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.62ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 104.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.27ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 103.5MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 769.65ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 69.7MB in the end (delta: 33.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1143.05ms. Allocated memory is still 142.6MB. Free memory was 69.3MB in the beginning and 99.1MB in the end (delta: -29.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.11ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 99.0MB in the end (delta: 27.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of shiftRight at line 52, overapproximation of someBinaryFLOATComparisonOperation at line 83, overapproximation of someBinaryFLOATComparisonOperation at line 93. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 1; [L23] unsigned char var_1_2 = 0; [L24] unsigned long int var_1_3 = 3164414017; [L25] unsigned long int var_1_4 = 128; [L26] signed char var_1_5 = -128; [L27] signed char var_1_6 = 10; [L28] signed char var_1_7 = 50; [L29] float var_1_8 = 5.1; [L30] float var_1_9 = 63.75; [L31] signed char var_1_10 = 100; [L32] signed long int var_1_12 = 5; [L33] signed char last_1_var_1_10 = 100; [L97] isInitial = 1 [L98] FCALL initially() [L99] int k_loop; [L100] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=0, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L100] COND TRUE k_loop < 1 [L101] CALL updateLastVariables() [L90] last_1_var_1_10 = var_1_10 [L101] RET updateLastVariables() [L102] CALL updateVariables() [L67] var_1_2 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L69] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L70] var_1_3 = __VERIFIER_nondet_ulong() [L71] CALL assume_abort_if_not(var_1_3 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_3 >= 2147483647) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L72] CALL assume_abort_if_not(var_1_3 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_3 <= 4294967294) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L73] var_1_4 = __VERIFIER_nondet_ulong() [L74] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L75] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=6442450938, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=6442450938, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L76] var_1_6 = __VERIFIER_nondet_char() [L77] CALL assume_abort_if_not(var_1_6 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=6442450938, var_1_5=-128, var_1_6=4, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_6 >= -126) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=6442450938, var_1_5=-128, var_1_6=4, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L78] CALL assume_abort_if_not(var_1_6 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=6442450938, var_1_5=-128, var_1_6=4, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_6 <= 126) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=6442450938, var_1_5=-128, var_1_6=4, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L79] var_1_7 = __VERIFIER_nondet_char() [L80] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=6442450938, var_1_5=-128, var_1_6=4, var_1_7=101, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=6442450938, var_1_5=-128, var_1_6=4, var_1_7=101, var_1_8=51/10, var_1_9=255/4] [L81] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=6442450938, var_1_5=-128, var_1_6=4, var_1_7=101, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=6442450938, var_1_5=-128, var_1_6=4, var_1_7=101, var_1_8=51/10, var_1_9=255/4] [L82] var_1_9 = __VERIFIER_nondet_float() [L83] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=6442450938, var_1_5=-128, var_1_6=4, var_1_7=101, var_1_8=51/10] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=6442450938, var_1_5=-128, var_1_6=4, var_1_7=101, var_1_8=51/10] [L84] var_1_12 = __VERIFIER_nondet_long() [L85] CALL assume_abort_if_not(var_1_12 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=6442450938, var_1_5=-128, var_1_6=4, var_1_7=101, var_1_8=51/10] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_12 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=6442450938, var_1_5=-128, var_1_6=4, var_1_7=101, var_1_8=51/10] [L86] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=6442450938, var_1_5=-128, var_1_6=4, var_1_7=101, var_1_8=51/10] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=6442450938, var_1_5=-128, var_1_6=4, var_1_7=101, var_1_8=51/10] [L87] CALL assume_abort_if_not(var_1_12 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=6442450938, var_1_5=-128, var_1_6=4, var_1_7=101, var_1_8=51/10] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_12 != 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=6442450938, var_1_5=-128, var_1_6=4, var_1_7=101, var_1_8=51/10] [L102] RET updateVariables() [L103] CALL step() [L37] COND TRUE \read(var_1_2) [L38] var_1_1 = ((((var_1_3 - var_1_4) < 0 ) ? -(var_1_3 - var_1_4) : (var_1_3 - var_1_4))) [L40] signed long int stepLocal_1 = -8; [L41] unsigned long int stepLocal_0 = var_1_1; [L42] COND FALSE !(stepLocal_1 < var_1_4) [L49] var_1_5 = -2 [L51] unsigned long int stepLocal_3 = var_1_1; [L52] EXPR var_1_4 >> var_1_3 [L52] unsigned long int stepLocal_2 = var_1_4 >> var_1_3; [L53] COND FALSE !(var_1_6 >= stepLocal_2) [L58] COND FALSE !((var_1_1 + (var_1_6 / var_1_12)) < var_1_1) [L103] RET step() [L104] CALL, EXPR property() [L93] EXPR ((var_1_2 ? (var_1_1 == ((unsigned long int) ((((var_1_3 - var_1_4) < 0 ) ? -(var_1_3 - var_1_4) : (var_1_3 - var_1_4))))) : 1) && ((-8 < var_1_4) ? ((var_1_4 != var_1_1) ? (var_1_5 == ((signed char) (((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))) - var_1_7))) : (var_1_5 == ((signed char) var_1_6))) : (var_1_5 == ((signed char) -2)))) && ((var_1_6 >= (var_1_4 >> var_1_3)) ? ((var_1_6 != var_1_1) ? (var_1_8 == ((float) var_1_9)) : 1) : 1) [L93] EXPR var_1_4 >> var_1_3 [L93] EXPR ((var_1_2 ? (var_1_1 == ((unsigned long int) ((((var_1_3 - var_1_4) < 0 ) ? -(var_1_3 - var_1_4) : (var_1_3 - var_1_4))))) : 1) && ((-8 < var_1_4) ? ((var_1_4 != var_1_1) ? (var_1_5 == ((signed char) (((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))) - var_1_7))) : (var_1_5 == ((signed char) var_1_6))) : (var_1_5 == ((signed char) -2)))) && ((var_1_6 >= (var_1_4 >> var_1_3)) ? ((var_1_6 != var_1_1) ? (var_1_8 == ((float) var_1_9)) : 1) : 1) [L93-L94] return (((var_1_2 ? (var_1_1 == ((unsigned long int) ((((var_1_3 - var_1_4) < 0 ) ? -(var_1_3 - var_1_4) : (var_1_3 - var_1_4))))) : 1) && ((-8 < var_1_4) ? ((var_1_4 != var_1_1) ? (var_1_5 == ((signed char) (((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))) - var_1_7))) : (var_1_5 == ((signed char) var_1_6))) : (var_1_5 == ((signed char) -2)))) && ((var_1_6 >= (var_1_4 >> var_1_3)) ? ((var_1_6 != var_1_1) ? (var_1_8 == ((float) var_1_9)) : 1) : 1)) && (((var_1_1 + (var_1_6 / var_1_12)) < var_1_1) ? ((var_1_7 >= last_1_var_1_10) ? (var_1_10 == ((signed char) -32)) : (var_1_10 == ((signed char) var_1_7))) : 1) ; [L104] RET, EXPR property() [L104] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=5, var_1_2=1, var_1_3=6442450943, var_1_4=6442450938, var_1_5=-2, var_1_6=4, var_1_7=101, var_1_8=51/10, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=5, var_1_2=1, var_1_3=6442450943, var_1_4=6442450938, var_1_5=-2, var_1_6=4, var_1_7=101, var_1_8=51/10, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 14, 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=30occurred 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, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 2 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 [2024-11-14 05:18:52,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-87.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E --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 1d6740d93249b8004eae6c6ec99a57fdd342d0b18a807811334b011905a57c0b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:18:54,845 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:18:54,954 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 05:18:54,963 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:18:54,964 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:18:55,000 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:18:55,001 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:18:55,001 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:18:55,002 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:18:55,002 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:18:55,002 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:18:55,002 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:18:55,002 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:18:55,002 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:18:55,002 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:18:55,002 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:18:55,003 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:18:55,003 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:18:55,003 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:18:55,003 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:18:55,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:18:55,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:18:55,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:18:55,003 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:18:55,004 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:18:55,004 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 05:18:55,004 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:18:55,006 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 05:18:55,006 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:18:55,018 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:18:55,018 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:18:55,018 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:18:55,018 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 05:18:55,018 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:18:55,019 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:18:55,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:18:55,022 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:18:55,022 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:18:55,022 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:18:55,022 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 05:18:55,023 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 05:18:55,023 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:18:55,023 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:18:55,023 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E 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 -> 1d6740d93249b8004eae6c6ec99a57fdd342d0b18a807811334b011905a57c0b [2024-11-14 05:18:55,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:18:55,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:18:55,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:18:55,352 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:18:55,352 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:18:55,353 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-87.i Unable to find full path for "g++" [2024-11-14 05:18:57,162 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:18:57,434 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:18:57,435 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-87.i [2024-11-14 05:18:57,462 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/data/09679989b/bbb6d46ea1e64951bbe954ddcdd72d8b/FLAG82b62a20a [2024-11-14 05:18:57,494 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/data/09679989b/bbb6d46ea1e64951bbe954ddcdd72d8b [2024-11-14 05:18:57,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:18:57,500 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:18:57,502 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:18:57,502 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:18:57,506 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:18:57,507 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:18:57" (1/1) ... [2024-11-14 05:18:57,508 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fe70e5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:57, skipping insertion in model container [2024-11-14 05:18:57,508 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:18:57" (1/1) ... [2024-11-14 05:18:57,523 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:18:57,684 WARN L250 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_79feeb44-bc51-4b0a-8867-51e988abedcc/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-87.i[915,928] [2024-11-14 05:18:57,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:18:57,767 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:18:57,780 WARN L250 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_79feeb44-bc51-4b0a-8867-51e988abedcc/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-87.i[915,928] [2024-11-14 05:18:57,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:18:57,839 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:18:57,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:57 WrapperNode [2024-11-14 05:18:57,839 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:18:57,841 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:18:57,841 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:18:57,841 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:18:57,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:57" (1/1) ... [2024-11-14 05:18:57,858 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:57" (1/1) ... [2024-11-14 05:18:57,880 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 104 [2024-11-14 05:18:57,880 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:18:57,881 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:18:57,881 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:18:57,881 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:18:57,888 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:57" (1/1) ... [2024-11-14 05:18:57,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:57" (1/1) ... [2024-11-14 05:18:57,891 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:57" (1/1) ... [2024-11-14 05:18:57,892 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:57" (1/1) ... [2024-11-14 05:18:57,899 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:57" (1/1) ... [2024-11-14 05:18:57,902 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:57" (1/1) ... [2024-11-14 05:18:57,904 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:57" (1/1) ... [2024-11-14 05:18:57,905 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:57" (1/1) ... [2024-11-14 05:18:57,908 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:18:57,909 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:18:57,909 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:18:57,909 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:18:57,910 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:57" (1/1) ... [2024-11-14 05:18:57,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:18:57,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:18:57,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:18:57,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:18:57,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:18:57,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 05:18:57,980 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:18:57,980 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:18:57,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:18:57,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:18:58,080 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:18:58,082 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:18:58,472 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-14 05:18:58,472 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:18:58,487 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:18:58,488 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:18:58,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:18:58 BoogieIcfgContainer [2024-11-14 05:18:58,489 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:18:58,491 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:18:58,491 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:18:58,496 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:18:58,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:18:57" (1/3) ... [2024-11-14 05:18:58,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592af5d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:18:58, skipping insertion in model container [2024-11-14 05:18:58,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:57" (2/3) ... [2024-11-14 05:18:58,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592af5d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:18:58, skipping insertion in model container [2024-11-14 05:18:58,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:18:58" (3/3) ... [2024-11-14 05:18:58,499 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-87.i [2024-11-14 05:18:58,515 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:18:58,516 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-87.i that has 2 procedures, 49 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:18:58,574 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:18:58,585 INFO L333 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, 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;@21286826, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:18:58,585 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:18:58,589 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 05:18:58,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-14 05:18:58,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:18:58,599 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:18:58,599 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:18:58,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:18:58,604 INFO L85 PathProgramCache]: Analyzing trace with hash 2003978763, now seen corresponding path program 1 times [2024-11-14 05:18:58,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:18:58,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811722958] [2024-11-14 05:18:58,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:18:58,615 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 [2024-11-14 05:18:58,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:18:58,617 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 05:18:58,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 05:18:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:18:58,836 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 05:18:58,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:18:58,898 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-14 05:18:58,898 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:18:58,899 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:18:58,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811722958] [2024-11-14 05:18:58,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811722958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:18:58,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:18:58,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:18:58,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796032283] [2024-11-14 05:18:58,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:18:58,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:18:58,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:18:58,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:18:58,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:18:58,926 INFO L87 Difference]: Start difference. First operand has 49 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 05:18:58,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:18:58,948 INFO L93 Difference]: Finished difference Result 95 states and 155 transitions. [2024-11-14 05:18:58,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:18:58,951 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 92 [2024-11-14 05:18:58,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:18:58,956 INFO L225 Difference]: With dead ends: 95 [2024-11-14 05:18:58,956 INFO L226 Difference]: Without dead ends: 45 [2024-11-14 05:18:58,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:18:58,962 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:18:58,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:18:58,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-14 05:18:58,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-14 05:18:58,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 05:18:58,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 65 transitions. [2024-11-14 05:18:59,001 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 65 transitions. Word has length 92 [2024-11-14 05:18:59,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:18:59,001 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 65 transitions. [2024-11-14 05:18:59,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 05:18:59,002 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2024-11-14 05:18:59,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-14 05:18:59,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:18:59,006 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:18:59,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-14 05:18:59,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 05:18:59,207 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:18:59,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:18:59,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1551977607, now seen corresponding path program 1 times [2024-11-14 05:18:59,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:18:59,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162040615] [2024-11-14 05:18:59,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:18:59,209 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 [2024-11-14 05:18:59,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:18:59,212 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 05:18:59,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 05:18:59,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:18:59,432 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:18:59,438 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:19:00,137 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 186 proven. 54 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-14 05:19:00,138 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:19:00,256 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:19:00,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162040615] [2024-11-14 05:19:00,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [162040615] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:19:00,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1500796129] [2024-11-14 05:19:00,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:00,257 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:19:00,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:19:00,259 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:19:00,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-14 05:19:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:00,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 05:19:00,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:19:01,360 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 186 proven. 54 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-14 05:19:01,361 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:19:01,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1500796129] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:19:01,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605353498] [2024-11-14 05:19:01,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:01,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:19:01,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:19:01,417 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:19:01,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 05:19:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:01,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 05:19:01,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:19:02,295 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 165 proven. 75 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-14 05:19:02,296 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:31:10,596 WARN L286 SmtUtils]: Spent 7.23s on a formula simplification. DAG size of input: 132 DAG size of output: 96 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:31:51,982 WARN L286 SmtUtils]: Spent 8.98s on a formula simplification that was a NOOP. DAG size: 128 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:32:21,774 WARN L286 SmtUtils]: Spent 12.10s on a formula simplification. DAG size of input: 107 DAG size of output: 102 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:32:38,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605353498] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:32:38,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:32:38,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 11] total 13 [2024-11-14 05:32:38,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335837370] [2024-11-14 05:32:38,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:32:38,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 05:32:38,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:32:38,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 05:32:38,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=358, Unknown=1, NotChecked=0, Total=462 [2024-11-14 05:32:38,425 INFO L87 Difference]: Start difference. First operand 45 states and 65 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 3 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-14 05:33:01,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:33:01,413 INFO L93 Difference]: Finished difference Result 146 states and 196 transitions. [2024-11-14 05:33:01,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-14 05:33:01,415 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 3 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 92 [2024-11-14 05:33:01,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:33:01,418 INFO L225 Difference]: With dead ends: 146 [2024-11-14 05:33:01,418 INFO L226 Difference]: Without dead ends: 104 [2024-11-14 05:33:01,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 98.6s TimeCoverageRelationStatistics Valid=269, Invalid=851, Unknown=2, NotChecked=0, Total=1122 [2024-11-14 05:33:01,420 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 90 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:33:01,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 240 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-14 05:33:01,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-14 05:33:01,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 73. [2024-11-14 05:33:01,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 52 states have (on average 1.25) internal successors, (65), 53 states have internal predecessors, (65), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 05:33:01,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 97 transitions. [2024-11-14 05:33:01,455 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 97 transitions. Word has length 92 [2024-11-14 05:33:01,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:33:01,455 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 97 transitions. [2024-11-14 05:33:01,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 3 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-14 05:33:01,457 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 97 transitions. [2024-11-14 05:33:01,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-14 05:33:01,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:33:01,461 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:33:01,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/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)] Ended with exit code 0 [2024-11-14 05:33:01,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 05:33:01,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-14 05:33:02,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 05:33:02,066 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:33:02,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:33:02,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1925223959, now seen corresponding path program 1 times [2024-11-14 05:33:02,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:33:02,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [762282260] [2024-11-14 05:33:02,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:02,068 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 [2024-11-14 05:33:02,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:33:02,070 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 05:33:02,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79feeb44-bc51-4b0a-8867-51e988abedcc/bin/utaipan-verify-sOmjnqqW8E/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 (6)] Waiting until timeout for monitored process [2024-11-14 05:33:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:33:02,227 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 05:33:02,232 INFO L278 TraceCheckSpWp]: Computing forward predicates...