./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-28.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-28.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1 --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 18ba50d64852b68ea2515543b9d6fd69509342b6bbaf4189c80d892ba3751848 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:21:32,322 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:21:32,379 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 13:21:32,384 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:21:32,385 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:21:32,406 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:21:32,407 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:21:32,407 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:21:32,407 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:21:32,407 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:21:32,407 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:21:32,407 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:21:32,408 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:21:32,408 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:21:32,408 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:21:32,408 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:21:32,408 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:21:32,408 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:21:32,408 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:21:32,408 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:21:32,408 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:21:32,409 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:21:32,409 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:21:32,409 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:21:32,409 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:21:32,409 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:21:32,409 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:21:32,409 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:21:32,409 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:21:32,409 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:21:32,409 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:21:32,409 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:21:32,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:21:32,410 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:21:32,410 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:21:32,410 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:21:32,410 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:21:32,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:21:32,410 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:21:32,410 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:21:32,410 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:21:32,410 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:21:32,411 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:21:32,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:21:32,411 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:21:32,411 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:21:32,411 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:21:32,411 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:21:32,411 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_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1 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 -> 18ba50d64852b68ea2515543b9d6fd69509342b6bbaf4189c80d892ba3751848 [2024-12-02 13:21:32,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:21:32,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:21:32,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:21:32,660 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:21:32,660 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:21:32,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-28.i [2024-12-02 13:21:35,301 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/data/645d50029/893aa412aace4551b3f9d7b0ea89167e/FLAGf5bc476b8 [2024-12-02 13:21:35,543 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:21:35,544 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-28.i [2024-12-02 13:21:35,553 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/data/645d50029/893aa412aace4551b3f9d7b0ea89167e/FLAGf5bc476b8 [2024-12-02 13:21:35,862 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/data/645d50029/893aa412aace4551b3f9d7b0ea89167e [2024-12-02 13:21:35,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:21:35,865 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:21:35,866 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:21:35,866 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:21:35,869 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:21:35,869 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:21:35" (1/1) ... [2024-12-02 13:21:35,870 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4766ccc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:35, skipping insertion in model container [2024-12-02 13:21:35,870 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:21:35" (1/1) ... [2024-12-02 13:21:35,884 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:21:35,982 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_82842da3-7ef4-422d-969e-87b746577f66/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-28.i[916,929] [2024-12-02 13:21:36,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:21:36,087 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:21:36,098 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_82842da3-7ef4-422d-969e-87b746577f66/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-28.i[916,929] [2024-12-02 13:21:36,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:21:36,165 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:21:36,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:36 WrapperNode [2024-12-02 13:21:36,166 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:21:36,167 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:21:36,167 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:21:36,167 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:21:36,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:36" (1/1) ... [2024-12-02 13:21:36,187 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:36" (1/1) ... [2024-12-02 13:21:36,235 INFO L138 Inliner]: procedures = 26, calls = 79, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 399 [2024-12-02 13:21:36,235 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:21:36,236 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:21:36,236 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:21:36,236 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:21:36,245 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:36" (1/1) ... [2024-12-02 13:21:36,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:36" (1/1) ... [2024-12-02 13:21:36,250 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:36" (1/1) ... [2024-12-02 13:21:36,273 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]. [2024-12-02 13:21:36,274 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:36" (1/1) ... [2024-12-02 13:21:36,274 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:36" (1/1) ... [2024-12-02 13:21:36,286 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:36" (1/1) ... [2024-12-02 13:21:36,288 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:36" (1/1) ... [2024-12-02 13:21:36,292 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:36" (1/1) ... [2024-12-02 13:21:36,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:36" (1/1) ... [2024-12-02 13:21:36,299 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:36" (1/1) ... [2024-12-02 13:21:36,304 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:21:36,305 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:21:36,305 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:21:36,305 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:21:36,306 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:36" (1/1) ... [2024-12-02 13:21:36,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:21:36,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:21:36,335 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:21:36,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:21:36,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:21:36,360 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 13:21:36,360 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 13:21:36,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:21:36,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:21:36,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:21:36,455 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:21:36,457 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:21:36,962 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-12-02 13:21:36,962 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:21:36,974 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:21:36,975 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:21:36,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:21:36 BoogieIcfgContainer [2024-12-02 13:21:36,975 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:21:36,977 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:21:36,977 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:21:36,982 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:21:36,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:21:35" (1/3) ... [2024-12-02 13:21:36,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b48bb0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:21:36, skipping insertion in model container [2024-12-02 13:21:36,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:36" (2/3) ... [2024-12-02 13:21:36,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b48bb0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:21:36, skipping insertion in model container [2024-12-02 13:21:36,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:21:36" (3/3) ... [2024-12-02 13:21:36,984 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-28.i [2024-12-02 13:21:36,998 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:21:37,001 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-28.i that has 2 procedures, 176 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 13:21:37,058 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:21:37,070 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;@3885edfe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:21:37,070 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:21:37,074 INFO L276 IsEmpty]: Start isEmpty. Operand has 176 states, 107 states have (on average 1.3925233644859814) internal successors, (149), 108 states have internal predecessors, (149), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 13:21:37,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-12-02 13:21:37,093 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:21:37,094 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:21:37,095 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:21:37,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:21:37,100 INFO L85 PathProgramCache]: Analyzing trace with hash -877605464, now seen corresponding path program 1 times [2024-12-02 13:21:37,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:21:37,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54190330] [2024-12-02 13:21:37,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:21:37,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:21:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:21:37,528 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 8450 trivial. 0 not checked. [2024-12-02 13:21:37,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:21:37,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54190330] [2024-12-02 13:21:37,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54190330] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:21:37,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422137289] [2024-12-02 13:21:37,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:21:37,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:21:37,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:21:37,533 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:21:37,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:21:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:21:37,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 13:21:37,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:21:37,854 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 8450 trivial. 0 not checked. [2024-12-02 13:21:37,854 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:21:37,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422137289] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:21:37,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:21:37,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 13:21:37,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389644916] [2024-12-02 13:21:37,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:21:37,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 13:21:37,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:21:37,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 13:21:37,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:21:37,878 INFO L87 Difference]: Start difference. First operand has 176 states, 107 states have (on average 1.3925233644859814) internal successors, (149), 108 states have internal predecessors, (149), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 2 states have call successors, (66) [2024-12-02 13:21:37,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:21:37,922 INFO L93 Difference]: Finished difference Result 345 states and 622 transitions. [2024-12-02 13:21:37,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 13:21:37,924 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 2 states have call successors, (66) Word has length 405 [2024-12-02 13:21:37,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:21:37,930 INFO L225 Difference]: With dead ends: 345 [2024-12-02 13:21:37,931 INFO L226 Difference]: Without dead ends: 172 [2024-12-02 13:21:37,935 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 406 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:21:37,937 INFO L435 NwaCegarLoop]: 274 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, 274 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 [2024-12-02 13:21:37,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:21:37,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-12-02 13:21:37,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2024-12-02 13:21:37,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 104 states have (on average 1.3653846153846154) internal successors, (142), 104 states have internal predecessors, (142), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 13:21:37,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 274 transitions. [2024-12-02 13:21:37,989 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 274 transitions. Word has length 405 [2024-12-02 13:21:37,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:21:37,989 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 274 transitions. [2024-12-02 13:21:37,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 2 states have call successors, (66) [2024-12-02 13:21:37,990 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 274 transitions. [2024-12-02 13:21:37,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-12-02 13:21:37,999 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:21:37,999 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:21:38,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:21:38,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 13:21:38,200 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:21:38,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:21:38,201 INFO L85 PathProgramCache]: Analyzing trace with hash 164546332, now seen corresponding path program 1 times [2024-12-02 13:21:38,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:21:38,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988094802] [2024-12-02 13:21:38,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:21:38,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:21:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:21:38,936 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-12-02 13:21:38,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:21:38,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988094802] [2024-12-02 13:21:38,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988094802] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:21:38,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:21:38,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:21:38,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876902393] [2024-12-02 13:21:38,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:21:38,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:21:38,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:21:38,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:21:38,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:21:38,940 INFO L87 Difference]: Start difference. First operand 172 states and 274 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2024-12-02 13:21:39,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:21:39,003 INFO L93 Difference]: Finished difference Result 510 states and 816 transitions. [2024-12-02 13:21:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:21:39,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 405 [2024-12-02 13:21:39,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:21:39,010 INFO L225 Difference]: With dead ends: 510 [2024-12-02 13:21:39,010 INFO L226 Difference]: Without dead ends: 341 [2024-12-02 13:21:39,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:21:39,012 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 154 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:21:39,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 537 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:21:39,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-12-02 13:21:39,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 339. [2024-12-02 13:21:39,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 204 states have (on average 1.3676470588235294) internal successors, (279), 204 states have internal predecessors, (279), 132 states have call successors, (132), 2 states have call predecessors, (132), 2 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2024-12-02 13:21:39,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 543 transitions. [2024-12-02 13:21:39,082 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 543 transitions. Word has length 405 [2024-12-02 13:21:39,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:21:39,083 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 543 transitions. [2024-12-02 13:21:39,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2024-12-02 13:21:39,084 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 543 transitions. [2024-12-02 13:21:39,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2024-12-02 13:21:39,088 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:21:39,088 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:21:39,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:21:39,088 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:21:39,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:21:39,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1159144113, now seen corresponding path program 1 times [2024-12-02 13:21:39,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:21:39,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170310164] [2024-12-02 13:21:39,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:21:39,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:21:39,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:26:55,374 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-12-02 13:26:55,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:26:55,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170310164] [2024-12-02 13:26:55,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170310164] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:26:55,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:26:55,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 13:26:55,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381656965] [2024-12-02 13:26:55,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:26:55,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 13:26:55,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:26:55,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 13:26:55,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:26:55,383 INFO L87 Difference]: Start difference. First operand 339 states and 543 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2024-12-02 13:26:56,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:26:56,828 INFO L93 Difference]: Finished difference Result 849 states and 1329 transitions. [2024-12-02 13:26:56,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 13:26:56,829 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 406 [2024-12-02 13:26:56,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:26:56,834 INFO L225 Difference]: With dead ends: 849 [2024-12-02 13:26:56,834 INFO L226 Difference]: Without dead ends: 513 [2024-12-02 13:26:56,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:26:56,836 INFO L435 NwaCegarLoop]: 252 mSDtfsCounter, 109 mSDsluCounter, 1625 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 1877 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:26:56,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 1877 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 13:26:56,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-12-02 13:26:56,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 373. [2024-12-02 13:26:56,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 238 states have (on average 1.3907563025210083) internal successors, (331), 238 states have internal predecessors, (331), 132 states have call successors, (132), 2 states have call predecessors, (132), 2 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2024-12-02 13:26:56,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 595 transitions. [2024-12-02 13:26:56,886 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 595 transitions. Word has length 406 [2024-12-02 13:26:56,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:26:56,887 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 595 transitions. [2024-12-02 13:26:56,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2024-12-02 13:26:56,888 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 595 transitions. [2024-12-02 13:26:56,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2024-12-02 13:26:56,891 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:26:56,891 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:26:56,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:26:56,891 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:26:56,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:26:56,892 INFO L85 PathProgramCache]: Analyzing trace with hash 766117103, now seen corresponding path program 1 times [2024-12-02 13:26:56,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:26:56,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476308467] [2024-12-02 13:26:56,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:26:56,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:26:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:26:57,153 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-12-02 13:26:57,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:26:57,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476308467] [2024-12-02 13:26:57,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476308467] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:26:57,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:26:57,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:26:57,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027436432] [2024-12-02 13:26:57,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:26:57,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:26:57,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:26:57,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:26:57,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:26:57,155 INFO L87 Difference]: Start difference. First operand 373 states and 595 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2024-12-02 13:26:57,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:26:57,770 INFO L93 Difference]: Finished difference Result 1537 states and 2454 transitions. [2024-12-02 13:26:57,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:26:57,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 406 [2024-12-02 13:26:57,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:26:57,777 INFO L225 Difference]: With dead ends: 1537 [2024-12-02 13:26:57,778 INFO L226 Difference]: Without dead ends: 1167 [2024-12-02 13:26:57,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:26:57,780 INFO L435 NwaCegarLoop]: 282 mSDtfsCounter, 595 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 531 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 531 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:26:57,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 1072 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [531 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:26:57,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2024-12-02 13:26:57,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 747. [2024-12-02 13:26:57,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 478 states have (on average 1.3849372384937237) internal successors, (662), 478 states have internal predecessors, (662), 264 states have call successors, (264), 4 states have call predecessors, (264), 4 states have return successors, (264), 264 states have call predecessors, (264), 264 states have call successors, (264) [2024-12-02 13:26:57,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1190 transitions. [2024-12-02 13:26:57,900 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1190 transitions. Word has length 406 [2024-12-02 13:26:57,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:26:57,901 INFO L471 AbstractCegarLoop]: Abstraction has 747 states and 1190 transitions. [2024-12-02 13:26:57,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2024-12-02 13:26:57,901 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1190 transitions. [2024-12-02 13:26:57,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2024-12-02 13:26:57,904 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:26:57,905 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:26:57,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:26:57,905 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:26:57,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:26:57,905 INFO L85 PathProgramCache]: Analyzing trace with hash 148026863, now seen corresponding path program 1 times [2024-12-02 13:26:57,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:26:57,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97537226] [2024-12-02 13:26:57,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:26:57,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:26:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:30,108 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-12-02 13:29:30,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:29:30,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97537226] [2024-12-02 13:29:30,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97537226] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:30,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:30,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 13:29:30,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669769696] [2024-12-02 13:29:30,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:30,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 13:29:30,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:29:30,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 13:29:30,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-12-02 13:29:30,110 INFO L87 Difference]: Start difference. First operand 747 states and 1190 transitions. Second operand has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 2 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2024-12-02 13:29:35,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:35,226 INFO L93 Difference]: Finished difference Result 1654 states and 2599 transitions. [2024-12-02 13:29:35,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 13:29:35,227 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 2 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 406 [2024-12-02 13:29:35,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:35,234 INFO L225 Difference]: With dead ends: 1654 [2024-12-02 13:29:35,234 INFO L226 Difference]: Without dead ends: 910 [2024-12-02 13:29:35,238 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2024-12-02 13:29:35,240 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 691 mSDsluCounter, 1349 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 1611 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:29:35,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 1611 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-12-02 13:29:35,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2024-12-02 13:29:35,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 765. [2024-12-02 13:29:35,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 496 states have (on average 1.3951612903225807) internal successors, (692), 496 states have internal predecessors, (692), 264 states have call successors, (264), 4 states have call predecessors, (264), 4 states have return successors, (264), 264 states have call predecessors, (264), 264 states have call successors, (264) [2024-12-02 13:29:35,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1220 transitions. [2024-12-02 13:29:35,355 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1220 transitions. Word has length 406 [2024-12-02 13:29:35,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:35,356 INFO L471 AbstractCegarLoop]: Abstraction has 765 states and 1220 transitions. [2024-12-02 13:29:35,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 2 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2024-12-02 13:29:35,356 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1220 transitions. [2024-12-02 13:29:35,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2024-12-02 13:29:35,365 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:35,365 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:35,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 13:29:35,365 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:35,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:35,367 INFO L85 PathProgramCache]: Analyzing trace with hash 138075759, now seen corresponding path program 1 times [2024-12-02 13:29:35,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:29:35,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400216160] [2024-12-02 13:29:35,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:35,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:35,580 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-12-02 13:29:35,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:29:35,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400216160] [2024-12-02 13:29:35,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400216160] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:35,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:35,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:29:35,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23202382] [2024-12-02 13:29:35,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:35,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:29:35,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:29:35,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:29:35,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:29:35,583 INFO L87 Difference]: Start difference. First operand 765 states and 1220 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2024-12-02 13:29:36,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:36,047 INFO L93 Difference]: Finished difference Result 2347 states and 3727 transitions. [2024-12-02 13:29:36,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:29:36,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 406 [2024-12-02 13:29:36,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:36,054 INFO L225 Difference]: With dead ends: 2347 [2024-12-02 13:29:36,054 INFO L226 Difference]: Without dead ends: 1585 [2024-12-02 13:29:36,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:29:36,057 INFO L435 NwaCegarLoop]: 298 mSDtfsCounter, 221 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:29:36,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 995 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:29:36,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2024-12-02 13:29:36,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1457. [2024-12-02 13:29:36,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1457 states, 920 states have (on average 1.376086956521739) internal successors, (1266), 920 states have internal predecessors, (1266), 528 states have call successors, (528), 8 states have call predecessors, (528), 8 states have return successors, (528), 528 states have call predecessors, (528), 528 states have call successors, (528) [2024-12-02 13:29:36,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 2322 transitions. [2024-12-02 13:29:36,226 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 2322 transitions. Word has length 406 [2024-12-02 13:29:36,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:36,227 INFO L471 AbstractCegarLoop]: Abstraction has 1457 states and 2322 transitions. [2024-12-02 13:29:36,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2024-12-02 13:29:36,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 2322 transitions. [2024-12-02 13:29:36,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2024-12-02 13:29:36,229 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:36,229 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:36,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 13:29:36,229 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:36,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:36,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1061170869, now seen corresponding path program 1 times [2024-12-02 13:29:36,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:29:36,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699211156] [2024-12-02 13:29:36,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:36,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:36,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:31:26,401 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-12-02 13:31:26,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:31:26,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699211156] [2024-12-02 13:31:26,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699211156] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:31:26,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:31:26,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 13:31:26,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188260149] [2024-12-02 13:31:26,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:31:26,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 13:31:26,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:31:26,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 13:31:26,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:31:26,403 INFO L87 Difference]: Start difference. First operand 1457 states and 2322 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2024-12-02 13:31:31,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:31:31,169 INFO L93 Difference]: Finished difference Result 2410 states and 3802 transitions. [2024-12-02 13:31:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 13:31:31,169 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 407 [2024-12-02 13:31:31,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:31:31,176 INFO L225 Difference]: With dead ends: 2410 [2024-12-02 13:31:31,176 INFO L226 Difference]: Without dead ends: 1648 [2024-12-02 13:31:31,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:31:31,179 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 374 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:31:31,179 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 1489 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-12-02 13:31:31,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2024-12-02 13:31:31,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1469. [2024-12-02 13:31:31,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 932 states have (on average 1.3733905579399142) internal successors, (1280), 932 states have internal predecessors, (1280), 528 states have call successors, (528), 8 states have call predecessors, (528), 8 states have return successors, (528), 528 states have call predecessors, (528), 528 states have call successors, (528) [2024-12-02 13:31:31,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2336 transitions. [2024-12-02 13:31:31,304 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2336 transitions. Word has length 407 [2024-12-02 13:31:31,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:31:31,305 INFO L471 AbstractCegarLoop]: Abstraction has 1469 states and 2336 transitions. [2024-12-02 13:31:31,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2024-12-02 13:31:31,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2336 transitions. [2024-12-02 13:31:31,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2024-12-02 13:31:31,307 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:31:31,307 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:31:31,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 13:31:31,307 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:31:31,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:31:31,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1252868171, now seen corresponding path program 1 times [2024-12-02 13:31:31,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:31:31,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819205014] [2024-12-02 13:31:31,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:31:31,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:31:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:33:05,169 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-12-02 13:33:05,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101 [2024-12-02 13:33:05,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 13:33:05,170 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.postprocessInterpolant(NestedInterpolantsBuilder.java:472) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.buildPredicates(NestedInterpolantsBuilder.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:292) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:227) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 58 more [2024-12-02 13:33:05,174 INFO L158 Benchmark]: Toolchain (without parser) took 689309.51ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 118.3MB in the beginning and 793.2MB in the end (delta: -674.9MB). Peak memory consumption was 800.4MB. Max. memory is 16.1GB. [2024-12-02 13:33:05,175 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:33:05,175 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.28ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 97.8MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 13:33:05,175 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.92ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 90.2MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:33:05,175 INFO L158 Benchmark]: Boogie Preprocessor took 68.33ms. Allocated memory is still 142.6MB. Free memory was 90.2MB in the beginning and 77.6MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 13:33:05,176 INFO L158 Benchmark]: RCFGBuilder took 670.41ms. Allocated memory is still 142.6MB. Free memory was 77.5MB in the beginning and 82.9MB in the end (delta: -5.4MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2024-12-02 13:33:05,176 INFO L158 Benchmark]: TraceAbstraction took 688196.42ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 82.3MB in the beginning and 793.2MB in the end (delta: -710.9MB). Peak memory consumption was 767.6MB. Max. memory is 16.1GB. [2024-12-02 13:33:05,178 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.28ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 97.8MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.92ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 90.2MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.33ms. Allocated memory is still 142.6MB. Free memory was 90.2MB in the beginning and 77.6MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 670.41ms. Allocated memory is still 142.6MB. Free memory was 77.5MB in the beginning and 82.9MB in the end (delta: -5.4MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * TraceAbstraction took 688196.42ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 82.3MB in the beginning and 793.2MB in the end (delta: -710.9MB). Peak memory consumption was 767.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-28.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1 --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 18ba50d64852b68ea2515543b9d6fd69509342b6bbaf4189c80d892ba3751848 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:33:06,894 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:33:06,969 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 13:33:06,975 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:33:06,975 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:33:07,000 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:33:07,001 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:33:07,001 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:33:07,001 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:33:07,002 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:33:07,002 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:33:07,002 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:33:07,002 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:33:07,002 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:33:07,002 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:33:07,002 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:33:07,003 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:33:07,003 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:33:07,003 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:33:07,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:33:07,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:33:07,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:33:07,003 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:33:07,003 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 13:33:07,003 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 13:33:07,003 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 13:33:07,003 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:33:07,003 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:33:07,003 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:33:07,004 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:33:07,004 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:33:07,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:33:07,004 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:33:07,004 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:33:07,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:33:07,004 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:33:07,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:33:07,004 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:33:07,004 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:33:07,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:33:07,004 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:33:07,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:33:07,005 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:33:07,005 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:33:07,005 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 13:33:07,005 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 13:33:07,005 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:33:07,005 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:33:07,005 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:33:07,005 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:33:07,005 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_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1 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 -> 18ba50d64852b68ea2515543b9d6fd69509342b6bbaf4189c80d892ba3751848 [2024-12-02 13:33:07,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:33:07,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:33:07,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:33:07,254 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:33:07,254 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:33:07,255 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-28.i [2024-12-02 13:33:09,991 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/data/f9dd7decd/b36b2f65e2464b12a15d9144ae5daaf1/FLAG31ef739c9 [2024-12-02 13:33:10,193 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:33:10,193 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-28.i [2024-12-02 13:33:10,203 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/data/f9dd7decd/b36b2f65e2464b12a15d9144ae5daaf1/FLAG31ef739c9 [2024-12-02 13:33:10,218 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/data/f9dd7decd/b36b2f65e2464b12a15d9144ae5daaf1 [2024-12-02 13:33:10,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:33:10,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:33:10,223 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:33:10,223 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:33:10,228 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:33:10,228 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:33:10" (1/1) ... [2024-12-02 13:33:10,229 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20b46b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:10, skipping insertion in model container [2024-12-02 13:33:10,229 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:33:10" (1/1) ... [2024-12-02 13:33:10,253 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:33:10,380 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_82842da3-7ef4-422d-969e-87b746577f66/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-28.i[916,929] [2024-12-02 13:33:10,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:33:10,488 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:33:10,499 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_82842da3-7ef4-422d-969e-87b746577f66/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-28.i[916,929] [2024-12-02 13:33:10,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:33:10,565 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:33:10,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:10 WrapperNode [2024-12-02 13:33:10,566 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:33:10,567 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:33:10,567 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:33:10,567 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:33:10,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:10" (1/1) ... [2024-12-02 13:33:10,584 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:10" (1/1) ... [2024-12-02 13:33:10,611 INFO L138 Inliner]: procedures = 27, calls = 79, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 356 [2024-12-02 13:33:10,611 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:33:10,612 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:33:10,612 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:33:10,612 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:33:10,620 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:10" (1/1) ... [2024-12-02 13:33:10,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:10" (1/1) ... [2024-12-02 13:33:10,626 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:10" (1/1) ... [2024-12-02 13:33:10,641 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]. [2024-12-02 13:33:10,641 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:10" (1/1) ... [2024-12-02 13:33:10,641 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:10" (1/1) ... [2024-12-02 13:33:10,657 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:10" (1/1) ... [2024-12-02 13:33:10,658 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:10" (1/1) ... [2024-12-02 13:33:10,663 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:10" (1/1) ... [2024-12-02 13:33:10,666 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:10" (1/1) ... [2024-12-02 13:33:10,668 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:10" (1/1) ... [2024-12-02 13:33:10,673 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:33:10,674 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:33:10,674 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:33:10,674 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:33:10,675 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:10" (1/1) ... [2024-12-02 13:33:10,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:33:10,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:33:10,709 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:33:10,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:33:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:33:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 13:33:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 13:33:10,734 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 13:33:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:33:10,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:33:10,827 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:33:10,828 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:33:14,543 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-12-02 13:33:14,543 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:33:14,554 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:33:14,555 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:33:14,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:33:14 BoogieIcfgContainer [2024-12-02 13:33:14,555 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:33:14,564 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:33:14,564 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:33:14,567 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:33:14,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:33:10" (1/3) ... [2024-12-02 13:33:14,567 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9f7863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:33:14, skipping insertion in model container [2024-12-02 13:33:14,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:10" (2/3) ... [2024-12-02 13:33:14,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9f7863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:33:14, skipping insertion in model container [2024-12-02 13:33:14,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:33:14" (3/3) ... [2024-12-02 13:33:14,569 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-28.i [2024-12-02 13:33:14,578 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:33:14,580 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-28.i that has 2 procedures, 162 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 13:33:14,630 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:33:14,641 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;@78cfe67d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:33:14,641 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:33:14,645 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 93 states have (on average 1.3763440860215055) internal successors, (128), 94 states have internal predecessors, (128), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 13:33:14,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-12-02 13:33:14,665 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:33:14,666 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:33:14,666 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:33:14,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:33:14,672 INFO L85 PathProgramCache]: Analyzing trace with hash -581011094, now seen corresponding path program 1 times [2024-12-02 13:33:14,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:33:14,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [160492496] [2024-12-02 13:33:14,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:33:14,681 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 [2024-12-02 13:33:14,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:33:14,682 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 13:33:14,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 13:33:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:33:15,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 13:33:15,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:33:15,461 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 2506 proven. 0 refuted. 0 times theorem prover too weak. 6074 trivial. 0 not checked. [2024-12-02 13:33:15,461 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:33:15,462 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:33:15,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [160492496] [2024-12-02 13:33:15,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [160492496] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:33:15,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:33:15,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:33:15,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725249139] [2024-12-02 13:33:15,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:33:15,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 13:33:15,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:33:15,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 13:33:15,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:33:15,491 INFO L87 Difference]: Start difference. First operand has 162 states, 93 states have (on average 1.3763440860215055) internal successors, (128), 94 states have internal predecessors, (128), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2024-12-02 13:33:15,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:33:15,531 INFO L93 Difference]: Finished difference Result 317 states and 580 transitions. [2024-12-02 13:33:15,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 13:33:15,533 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 402 [2024-12-02 13:33:15,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:33:15,540 INFO L225 Difference]: With dead ends: 317 [2024-12-02 13:33:15,541 INFO L226 Difference]: Without dead ends: 158 [2024-12-02 13:33:15,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:33:15,546 INFO L435 NwaCegarLoop]: 253 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, 253 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 [2024-12-02 13:33:15,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:33:15,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-12-02 13:33:15,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-12-02 13:33:15,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 90 states have (on average 1.3444444444444446) internal successors, (121), 90 states have internal predecessors, (121), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 13:33:15,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 253 transitions. [2024-12-02 13:33:15,601 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 253 transitions. Word has length 402 [2024-12-02 13:33:15,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:33:15,601 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 253 transitions. [2024-12-02 13:33:15,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2024-12-02 13:33:15,602 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 253 transitions. [2024-12-02 13:33:15,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-12-02 13:33:15,610 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:33:15,611 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:33:15,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 13:33:15,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 13:33:15,811 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:33:15,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:33:15,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1063512970, now seen corresponding path program 1 times [2024-12-02 13:33:15,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:33:15,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677469538] [2024-12-02 13:33:15,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:33:15,813 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 [2024-12-02 13:33:15,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:33:15,815 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 13:33:15,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 13:33:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:33:16,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:33:16,534 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:33:18,188 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-12-02 13:33:18,189 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:33:18,189 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:33:18,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677469538] [2024-12-02 13:33:18,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1677469538] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:33:18,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:33:18,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:33:18,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707838179] [2024-12-02 13:33:18,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:33:18,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:33:18,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:33:18,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:33:18,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:33:18,192 INFO L87 Difference]: Start difference. First operand 158 states and 253 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2024-12-02 13:33:18,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:33:18,259 INFO L93 Difference]: Finished difference Result 468 states and 753 transitions. [2024-12-02 13:33:18,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:33:18,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 402 [2024-12-02 13:33:18,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:33:18,265 INFO L225 Difference]: With dead ends: 468 [2024-12-02 13:33:18,265 INFO L226 Difference]: Without dead ends: 313 [2024-12-02 13:33:18,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:33:18,267 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 64 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:33:18,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 495 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:33:18,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-12-02 13:33:18,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 311. [2024-12-02 13:33:18,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 176 states have (on average 1.3465909090909092) internal successors, (237), 176 states have internal predecessors, (237), 132 states have call successors, (132), 2 states have call predecessors, (132), 2 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2024-12-02 13:33:18,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 501 transitions. [2024-12-02 13:33:18,326 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 501 transitions. Word has length 402 [2024-12-02 13:33:18,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:33:18,328 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 501 transitions. [2024-12-02 13:33:18,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2024-12-02 13:33:18,328 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 501 transitions. [2024-12-02 13:33:18,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2024-12-02 13:33:18,336 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:33:18,336 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:33:18,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 13:33:18,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 13:33:18,537 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:33:18,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:33:18,537 INFO L85 PathProgramCache]: Analyzing trace with hash -491538706, now seen corresponding path program 1 times [2024-12-02 13:33:18,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:33:18,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087967578] [2024-12-02 13:33:18,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:33:18,539 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 [2024-12-02 13:33:18,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:33:18,540 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 13:33:18,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82842da3-7ef4-422d-969e-87b746577f66/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-12-02 13:33:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:33:19,258 INFO L256 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 13:33:19,270 INFO L279 TraceCheckSpWp]: Computing forward predicates...