./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-52.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_8bf0b1db-3404-4b8a-8c63-1ad11b29fa79/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf0b1db-3404-4b8a-8c63-1ad11b29fa79/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf0b1db-3404-4b8a-8c63-1ad11b29fa79/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf0b1db-3404-4b8a-8c63-1ad11b29fa79/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-52.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf0b1db-3404-4b8a-8c63-1ad11b29fa79/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf0b1db-3404-4b8a-8c63-1ad11b29fa79/bin/uautomizer-verify-qhAvR1uOyd --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e36708b959d2766ccb3dd17186f87fc0beb353908e35aa36052ba70a089a0487 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:30:10,473 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:30:10,597 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf0b1db-3404-4b8a-8c63-1ad11b29fa79/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 13:30:10,603 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:30:10,604 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:30:10,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:30:10,637 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:30:10,638 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:30:10,638 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:30:10,638 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:30:10,639 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:30:10,639 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:30:10,640 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:30:10,640 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:30:10,641 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:30:10,641 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:30:10,642 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:30:10,642 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:30:10,642 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:30:10,642 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:30:10,642 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:30:10,642 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:30:10,643 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:30:10,644 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:30:10,644 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:30:10,644 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:30:10,644 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:30:10,644 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:30:10,644 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:30:10,644 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:30:10,645 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:30:10,645 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:30:10,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:30:10,645 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:30:10,645 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:30:10,645 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:30:10,645 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:30:10,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:30:10,645 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:30:10,646 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:30:10,646 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:30:10,646 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:30:10,646 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_8bf0b1db-3404-4b8a-8c63-1ad11b29fa79/bin/uautomizer-verify-qhAvR1uOyd 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 -> Automizer 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 -> e36708b959d2766ccb3dd17186f87fc0beb353908e35aa36052ba70a089a0487 [2024-11-13 13:30:11,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:30:11,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:30:11,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:30:11,035 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:30:11,036 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:30:11,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf0b1db-3404-4b8a-8c63-1ad11b29fa79/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-52.i Unable to find full path for "g++" [2024-11-13 13:30:13,242 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:30:13,597 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:30:13,611 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf0b1db-3404-4b8a-8c63-1ad11b29fa79/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-52.i [2024-11-13 13:30:13,633 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf0b1db-3404-4b8a-8c63-1ad11b29fa79/bin/uautomizer-verify-qhAvR1uOyd/data/3c03b091f/7801f4bc3af44d8baf1c7a98f8b9cef4/FLAG81cc0e4e1 [2024-11-13 13:30:13,656 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf0b1db-3404-4b8a-8c63-1ad11b29fa79/bin/uautomizer-verify-qhAvR1uOyd/data/3c03b091f/7801f4bc3af44d8baf1c7a98f8b9cef4 [2024-11-13 13:30:13,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:30:13,661 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:30:13,665 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:30:13,665 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:30:13,672 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:30:13,673 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:30:13" (1/1) ... [2024-11-13 13:30:13,677 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@379200e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:13, skipping insertion in model container [2024-11-13 13:30:13,677 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:30:13" (1/1) ... [2024-11-13 13:30:13,713 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:30:13,936 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_8bf0b1db-3404-4b8a-8c63-1ad11b29fa79/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-52.i[915,928] [2024-11-13 13:30:14,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:30:14,079 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:30:14,096 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_8bf0b1db-3404-4b8a-8c63-1ad11b29fa79/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-52.i[915,928] [2024-11-13 13:30:14,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:30:14,198 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:30:14,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:14 WrapperNode [2024-11-13 13:30:14,199 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:30:14,200 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:30:14,200 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:30:14,200 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:30:14,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:14" (1/1) ... [2024-11-13 13:30:14,227 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:14" (1/1) ... [2024-11-13 13:30:14,290 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 165 [2024-11-13 13:30:14,291 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:30:14,292 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:30:14,292 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:30:14,292 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:30:14,304 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:14" (1/1) ... [2024-11-13 13:30:14,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:14" (1/1) ... [2024-11-13 13:30:14,307 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:14" (1/1) ... [2024-11-13 13:30:14,329 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 13:30:14,330 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:14" (1/1) ... [2024-11-13 13:30:14,330 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:14" (1/1) ... [2024-11-13 13:30:14,339 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:14" (1/1) ... [2024-11-13 13:30:14,351 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:14" (1/1) ... [2024-11-13 13:30:14,354 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:14" (1/1) ... [2024-11-13 13:30:14,359 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:14" (1/1) ... [2024-11-13 13:30:14,366 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:30:14,367 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:30:14,368 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:30:14,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:30:14,370 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:14" (1/1) ... [2024-11-13 13:30:14,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:30:14,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf0b1db-3404-4b8a-8c63-1ad11b29fa79/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:30:14,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf0b1db-3404-4b8a-8c63-1ad11b29fa79/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:30:14,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf0b1db-3404-4b8a-8c63-1ad11b29fa79/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:30:14,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:30:14,454 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 13:30:14,455 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 13:30:14,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:30:14,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:30:14,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:30:14,588 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:30:14,590 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:30:15,142 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-13 13:30:15,142 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:30:15,157 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:30:15,157 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:30:15,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:30:15 BoogieIcfgContainer [2024-11-13 13:30:15,158 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:30:15,161 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:30:15,161 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:30:15,167 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:30:15,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:30:13" (1/3) ... [2024-11-13 13:30:15,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b65c60a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:30:15, skipping insertion in model container [2024-11-13 13:30:15,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:14" (2/3) ... [2024-11-13 13:30:15,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b65c60a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:30:15, skipping insertion in model container [2024-11-13 13:30:15,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:30:15" (3/3) ... [2024-11-13 13:30:15,170 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-52.i [2024-11-13 13:30:15,191 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:30:15,193 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-52.i that has 2 procedures, 70 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:30:15,262 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:30:15,277 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=PETRI_NET, 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;@e3edf8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:30:15,277 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:30:15,282 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 47 states have internal predecessors, (63), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-13 13:30:15,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-13 13:30:15,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:30:15,297 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:30:15,298 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:30:15,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:30:15,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1605903281, now seen corresponding path program 1 times [2024-11-13 13:30:15,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:30:15,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53745193] [2024-11-13 13:30:15,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:30:15,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:30:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:15,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:30:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:15,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 13:30:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:15,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 13:30:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:15,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 13:30:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:15,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 13:30:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:15,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:30:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:15,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 13:30:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:15,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 13:30:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:15,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 13:30:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:15,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 13:30:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:15,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 13:30:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:15,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 13:30:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:15,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 13:30:15,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:15,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 13:30:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:15,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-13 13:30:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:15,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-13 13:30:15,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:15,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-13 13:30:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:15,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 13:30:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:15,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-13 13:30:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:15,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-13 13:30:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:15,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-13 13:30:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:15,874 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-13 13:30:15,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:30:15,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53745193] [2024-11-13 13:30:15,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53745193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:30:15,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:30:15,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:30:15,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586729919] [2024-11-13 13:30:15,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:30:15,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 13:30:15,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:30:15,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 13:30:15,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:30:15,916 INFO L87 Difference]: Start difference. First operand has 70 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 47 states have internal predecessors, (63), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-13 13:30:15,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:30:15,952 INFO L93 Difference]: Finished difference Result 133 states and 225 transitions. [2024-11-13 13:30:15,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 13:30:15,955 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) Word has length 139 [2024-11-13 13:30:15,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:30:15,966 INFO L225 Difference]: With dead ends: 133 [2024-11-13 13:30:15,967 INFO L226 Difference]: Without dead ends: 66 [2024-11-13 13:30:15,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:30:15,974 INFO L432 NwaCegarLoop]: 98 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, 98 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 [2024-11-13 13:30:15,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:30:15,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-13 13:30:16,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-11-13 13:30:16,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 43 states have (on average 1.302325581395349) internal successors, (56), 43 states have internal predecessors, (56), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-13 13:30:16,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 98 transitions. [2024-11-13 13:30:16,037 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 98 transitions. Word has length 139 [2024-11-13 13:30:16,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:30:16,038 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 98 transitions. [2024-11-13 13:30:16,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-13 13:30:16,038 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 98 transitions. [2024-11-13 13:30:16,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-13 13:30:16,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:30:16,044 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:30:16,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:30:16,045 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:30:16,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:30:16,046 INFO L85 PathProgramCache]: Analyzing trace with hash 882529075, now seen corresponding path program 1 times [2024-11-13 13:30:16,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:30:16,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478374157] [2024-11-13 13:30:16,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:30:16,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:30:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat