./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-80.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1011759-0068-4b51-bbfe-d043cefaa1b3/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1011759-0068-4b51-bbfe-d043cefaa1b3/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1011759-0068-4b51-bbfe-d043cefaa1b3/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1011759-0068-4b51-bbfe-d043cefaa1b3/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-80.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1011759-0068-4b51-bbfe-d043cefaa1b3/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1011759-0068-4b51-bbfe-d043cefaa1b3/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f77e8c9f93ca54d94eb905f2ce3291ad784a62b1b2b1f919a3731c7174a0c943 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:30:12,509 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:30:12,590 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1011759-0068-4b51-bbfe-d043cefaa1b3/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:30:12,595 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:30:12,595 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:30:12,619 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:30:12,619 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:30:12,620 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:30:12,620 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:30:12,620 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:30:12,620 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:30:12,621 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:30:12,621 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:30:12,621 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:30:12,621 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:30:12,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:30:12,622 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:30:12,622 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:30:12,622 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:30:12,622 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:30:12,622 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:30:12,622 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:30:12,622 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:30:12,622 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:30:12,623 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:30:12,623 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:30:12,623 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:30:12,623 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:30:12,623 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:30:12,623 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:30:12,623 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:30:12,623 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:30:12,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:30:12,624 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:30:12,624 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:30:12,624 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:30:12,624 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:30:12,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:30:12,627 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:30:12,627 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:30:12,627 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:30:12,627 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:30:12,627 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_e1011759-0068-4b51-bbfe-d043cefaa1b3/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f77e8c9f93ca54d94eb905f2ce3291ad784a62b1b2b1f919a3731c7174a0c943 [2024-11-13 15:30:12,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:30:12,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:30:12,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:30:12,999 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:30:12,999 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:30:13,001 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1011759-0068-4b51-bbfe-d043cefaa1b3/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-80.i Unable to find full path for "g++" [2024-11-13 15:30:15,081 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:30:15,467 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:30:15,470 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1011759-0068-4b51-bbfe-d043cefaa1b3/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-80.i [2024-11-13 15:30:15,485 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1011759-0068-4b51-bbfe-d043cefaa1b3/bin/uautomizer-verify-qhAvR1uOyd/data/59e2e5eb2/94d2f7158679441b9e95e519cc6b004d/FLAGd6fe6d13d [2024-11-13 15:30:15,507 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1011759-0068-4b51-bbfe-d043cefaa1b3/bin/uautomizer-verify-qhAvR1uOyd/data/59e2e5eb2/94d2f7158679441b9e95e519cc6b004d [2024-11-13 15:30:15,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:30:15,512 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:30:15,516 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:30:15,517 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:30:15,523 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:30:15,524 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:30:15" (1/1) ... [2024-11-13 15:30:15,525 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6dd1f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:15, skipping insertion in model container [2024-11-13 15:30:15,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:30:15" (1/1) ... [2024-11-13 15:30:15,558 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:30:15,733 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_e1011759-0068-4b51-bbfe-d043cefaa1b3/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-80.i[916,929] [2024-11-13 15:30:15,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:30:15,870 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:30:15,884 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_e1011759-0068-4b51-bbfe-d043cefaa1b3/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-80.i[916,929] [2024-11-13 15:30:15,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:30:15,997 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:30:15,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:15 WrapperNode [2024-11-13 15:30:15,998 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:30:15,999 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:30:16,000 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:30:16,000 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:30:16,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:15" (1/1) ... [2024-11-13 15:30:16,028 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:15" (1/1) ... [2024-11-13 15:30:16,071 INFO L138 Inliner]: procedures = 29, calls = 244, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 810 [2024-11-13 15:30:16,072 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:30:16,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:30:16,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:30:16,073 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:30:16,083 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:15" (1/1) ... [2024-11-13 15:30:16,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:15" (1/1) ... [2024-11-13 15:30:16,090 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:15" (1/1) ... [2024-11-13 15:30:16,121 INFO L175 MemorySlicer]: Split 199 memory accesses to 18 slices as follows [2, 3, 11, 8, 12, 13, 6, 14, 5, 22, 22, 14, 16, 8, 8, 3, 23, 9]. 12 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 19 writes are split as follows [0, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2024-11-13 15:30:16,122 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:15" (1/1) ... [2024-11-13 15:30:16,122 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:15" (1/1) ... [2024-11-13 15:30:16,164 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:15" (1/1) ... [2024-11-13 15:30:16,179 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:15" (1/1) ... [2024-11-13 15:30:16,189 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:15" (1/1) ... [2024-11-13 15:30:16,197 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:15" (1/1) ... [2024-11-13 15:30:16,212 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:30:16,217 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:30:16,221 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:30:16,222 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:30:16,223 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:15" (1/1) ... [2024-11-13 15:30:16,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:30:16,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1011759-0068-4b51-bbfe-d043cefaa1b3/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:30:16,259 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1011759-0068-4b51-bbfe-d043cefaa1b3/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:30:16,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1011759-0068-4b51-bbfe-d043cefaa1b3/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:30:16,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:30:16,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 15:30:16,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 15:30:16,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 15:30:16,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-13 15:30:16,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-13 15:30:16,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-13 15:30:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-13 15:30:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-13 15:30:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-13 15:30:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-13 15:30:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-13 15:30:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-13 15:30:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-13 15:30:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-13 15:30:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-13 15:30:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-13 15:30:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-13 15:30:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-13 15:30:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-13 15:30:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-13 15:30:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-13 15:30:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-13 15:30:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-13 15:30:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-13 15:30:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-13 15:30:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-13 15:30:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-13 15:30:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-11-13 15:30:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-11-13 15:30:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-11-13 15:30:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2024-11-13 15:30:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2024-11-13 15:30:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2024-11-13 15:30:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2024-11-13 15:30:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#16 [2024-11-13 15:30:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#17 [2024-11-13 15:30:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-13 15:30:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-13 15:30:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-13 15:30:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-13 15:30:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-13 15:30:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-13 15:30:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-13 15:30:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-13 15:30:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-11-13 15:30:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-11-13 15:30:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-11-13 15:30:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-11-13 15:30:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2024-11-13 15:30:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2024-11-13 15:30:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2024-11-13 15:30:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2024-11-13 15:30:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#16 [2024-11-13 15:30:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#17 [2024-11-13 15:30:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 15:30:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 15:30:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 15:30:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-13 15:30:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-13 15:30:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-13 15:30:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-13 15:30:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-13 15:30:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-13 15:30:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-13 15:30:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-13 15:30:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-13 15:30:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-13 15:30:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-13 15:30:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-13 15:30:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-13 15:30:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-13 15:30:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-13 15:30:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-13 15:30:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-13 15:30:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-13 15:30:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-13 15:30:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-13 15:30:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-13 15:30:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-13 15:30:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-11-13 15:30:16,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-11-13 15:30:16,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-11-13 15:30:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2024-11-13 15:30:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2024-11-13 15:30:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#12 [2024-11-13 15:30:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#13 [2024-11-13 15:30:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#14 [2024-11-13 15:30:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#15 [2024-11-13 15:30:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#16 [2024-11-13 15:30:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#17 [2024-11-13 15:30:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 15:30:16,307 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 15:30:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:30:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 15:30:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 15:30:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 15:30:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-13 15:30:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-13 15:30:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-13 15:30:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-13 15:30:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-13 15:30:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-13 15:30:16,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-13 15:30:16,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-13 15:30:16,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-13 15:30:16,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-13 15:30:16,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-13 15:30:16,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-13 15:30:16,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-13 15:30:16,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-13 15:30:16,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:30:16,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:30:16,663 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:30:16,667 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:30:17,764 INFO L? ?]: Removed 236 outVars from TransFormulas that were not future-live. [2024-11-13 15:30:17,764 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:30:17,786 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:30:17,788 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:30:17,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:30:17 BoogieIcfgContainer [2024-11-13 15:30:17,789 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:30:17,792 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:30:17,793 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:30:17,799 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:30:17,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:30:15" (1/3) ... [2024-11-13 15:30:17,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17f81cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:30:17, skipping insertion in model container [2024-11-13 15:30:17,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:30:15" (2/3) ... [2024-11-13 15:30:17,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17f81cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:30:17, skipping insertion in model container [2024-11-13 15:30:17,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:30:17" (3/3) ... [2024-11-13 15:30:17,804 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-80.i [2024-11-13 15:30:17,823 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:30:17,825 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-p_file-80.i that has 2 procedures, 154 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 15:30:17,913 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:30:17,933 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;@7bd5f236, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:30:17,933 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:30:17,941 INFO L276 IsEmpty]: Start isEmpty. Operand has 154 states, 134 states have (on average 1.455223880597015) internal successors, (195), 135 states have internal predecessors, (195), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-13 15:30:17,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-13 15:30:17,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:30:17,962 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:30:17,963 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:30:17,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:30:17,970 INFO L85 PathProgramCache]: Analyzing trace with hash -236521488, now seen corresponding path program 1 times [2024-11-13 15:30:17,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:30:17,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826169973] [2024-11-13 15:30:17,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:30:17,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:30:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:18,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:30:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:18,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:30:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:18,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:30:18,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:18,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:30:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:18,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:30:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:18,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:30:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:18,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:30:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:18,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:30:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:18,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:30:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:18,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:30:18,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:18,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:30:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:18,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 15:30:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:18,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:30:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:18,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 15:30:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:18,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:30:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:18,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 15:30:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:18,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-13 15:30:18,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:18,671 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-13 15:30:18,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:30:18,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826169973] [2024-11-13 15:30:18,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826169973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:30:18,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:30:18,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:30:18,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22086156] [2024-11-13 15:30:18,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:30:18,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:30:18,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:30:18,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:30:18,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:30:18,716 INFO L87 Difference]: Start difference. First operand has 154 states, 134 states have (on average 1.455223880597015) internal successors, (195), 135 states have internal predecessors, (195), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-13 15:30:18,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:30:18,774 INFO L93 Difference]: Finished difference Result 301 states and 469 transitions. [2024-11-13 15:30:18,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:30:18,777 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2024-11-13 15:30:18,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:30:18,788 INFO L225 Difference]: With dead ends: 301 [2024-11-13 15:30:18,788 INFO L226 Difference]: Without dead ends: 150 [2024-11-13 15:30:18,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:30:18,798 INFO L432 NwaCegarLoop]: 222 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, 222 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:30:18,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:30:18,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-13 15:30:18,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-13 15:30:18,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 131 states have (on average 1.4351145038167938) internal successors, (188), 131 states have internal predecessors, (188), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-13 15:30:18,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 222 transitions. [2024-11-13 15:30:18,870 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 222 transitions. Word has length 153 [2024-11-13 15:30:18,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:30:18,870 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 222 transitions. [2024-11-13 15:30:18,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-13 15:30:18,873 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 222 transitions. [2024-11-13 15:30:18,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-13 15:30:18,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:30:18,880 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:30:18,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:30:18,880 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:30:18,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:30:18,881 INFO L85 PathProgramCache]: Analyzing trace with hash -20923046, now seen corresponding path program 1 times [2024-11-13 15:30:18,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:30:18,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906877244] [2024-11-13 15:30:18,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:30:18,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:30:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:19,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:30:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:19,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:30:19,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:19,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:30:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:19,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:30:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:19,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:30:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:19,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:30:19,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:19,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:30:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:19,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:30:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:19,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:30:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:19,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:30:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:19,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:30:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:19,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 15:30:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:19,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:30:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:19,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 15:30:19,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:19,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:30:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:19,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 15:30:19,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:19,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-13 15:30:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:19,621 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-13 15:30:19,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:30:19,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906877244] [2024-11-13 15:30:19,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906877244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:30:19,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:30:19,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:30:19,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688740613] [2024-11-13 15:30:19,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:30:19,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:30:19,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:30:19,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:30:19,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:30:19,632 INFO L87 Difference]: Start difference. First operand 150 states and 222 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-13 15:30:19,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:30:19,726 INFO L93 Difference]: Finished difference Result 299 states and 444 transitions. [2024-11-13 15:30:19,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:30:19,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2024-11-13 15:30:19,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:30:19,732 INFO L225 Difference]: With dead ends: 299 [2024-11-13 15:30:19,732 INFO L226 Difference]: Without dead ends: 152 [2024-11-13 15:30:19,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:30:19,734 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:30:19,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 649 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:30:19,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-13 15:30:19,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-11-13 15:30:19,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 133 states have (on average 1.4285714285714286) internal successors, (190), 133 states have internal predecessors, (190), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-13 15:30:19,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 224 transitions. [2024-11-13 15:30:19,759 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 224 transitions. Word has length 153 [2024-11-13 15:30:19,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:30:19,765 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 224 transitions. [2024-11-13 15:30:19,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-13 15:30:19,765 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 224 transitions. [2024-11-13 15:30:19,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-13 15:30:19,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:30:19,767 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:30:19,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:30:19,768 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:30:19,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:30:19,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1587680996, now seen corresponding path program 1 times [2024-11-13 15:30:19,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:30:19,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912478123] [2024-11-13 15:30:19,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:30:19,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:30:19,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:30:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:30:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:30:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:30:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:30:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:30:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:30:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:30:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:30:20,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:30:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:30:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 15:30:20,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:30:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 15:30:20,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:30:20,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 15:30:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-13 15:30:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,459 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-13 15:30:20,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:30:20,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912478123] [2024-11-13 15:30:20,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912478123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:30:20,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:30:20,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:30:20,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935214156] [2024-11-13 15:30:20,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:30:20,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:30:20,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:30:20,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:30:20,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:30:20,461 INFO L87 Difference]: Start difference. First operand 152 states and 224 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-13 15:30:20,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:30:20,525 INFO L93 Difference]: Finished difference Result 303 states and 448 transitions. [2024-11-13 15:30:20,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:30:20,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 153 [2024-11-13 15:30:20,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:30:20,533 INFO L225 Difference]: With dead ends: 303 [2024-11-13 15:30:20,533 INFO L226 Difference]: Without dead ends: 154 [2024-11-13 15:30:20,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:30:20,535 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:30:20,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 649 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:30:20,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-13 15:30:20,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2024-11-13 15:30:20,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 135 states have (on average 1.4222222222222223) internal successors, (192), 135 states have internal predecessors, (192), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-13 15:30:20,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 226 transitions. [2024-11-13 15:30:20,557 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 226 transitions. Word has length 153 [2024-11-13 15:30:20,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:30:20,561 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 226 transitions. [2024-11-13 15:30:20,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-13 15:30:20,561 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 226 transitions. [2024-11-13 15:30:20,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-13 15:30:20,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:30:20,567 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:30:20,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:30:20,567 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:30:20,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:30:20,568 INFO L85 PathProgramCache]: Analyzing trace with hash -855052425, now seen corresponding path program 1 times [2024-11-13 15:30:20,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:30:20,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357337993] [2024-11-13 15:30:20,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:30:20,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:30:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:30:20,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:30:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:30:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:30:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:30:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:30:20,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:30:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:30:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:30:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:30:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:30:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 15:30:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:30:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 15:30:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:30:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 15:30:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-13 15:30:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:20,950 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-13 15:30:20,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:30:20,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357337993] [2024-11-13 15:30:20,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357337993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:30:20,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:30:20,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:30:20,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125283942] [2024-11-13 15:30:20,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:30:20,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:30:20,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:30:20,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:30:20,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:30:20,952 INFO L87 Difference]: Start difference. First operand 154 states and 226 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-13 15:30:21,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:30:21,013 INFO L93 Difference]: Finished difference Result 308 states and 453 transitions. [2024-11-13 15:30:21,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:30:21,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-13 15:30:21,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:30:21,016 INFO L225 Difference]: With dead ends: 308 [2024-11-13 15:30:21,016 INFO L226 Difference]: Without dead ends: 157 [2024-11-13 15:30:21,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:30:21,017 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:30:21,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 646 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:30:21,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-13 15:30:21,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 156. [2024-11-13 15:30:21,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 137 states have (on average 1.416058394160584) internal successors, (194), 137 states have internal predecessors, (194), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-13 15:30:21,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 228 transitions. [2024-11-13 15:30:21,034 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 228 transitions. Word has length 155 [2024-11-13 15:30:21,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:30:21,035 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 228 transitions. [2024-11-13 15:30:21,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-13 15:30:21,035 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 228 transitions. [2024-11-13 15:30:21,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-13 15:30:21,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:30:21,037 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:30:21,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:30:21,038 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:30:21,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:30:21,038 INFO L85 PathProgramCache]: Analyzing trace with hash -174994055, now seen corresponding path program 1 times [2024-11-13 15:30:21,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:30:21,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406835703] [2024-11-13 15:30:21,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:30:21,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:30:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:30:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:30:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:30:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:30:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:30:21,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:30:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:30:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:30:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:30:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:30:21,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:30:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 15:30:21,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:30:21,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 15:30:21,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:30:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 15:30:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-13 15:30:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,397 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-13 15:30:21,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:30:21,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406835703] [2024-11-13 15:30:21,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406835703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:30:21,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:30:21,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:30:21,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875576580] [2024-11-13 15:30:21,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:30:21,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:30:21,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:30:21,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:30:21,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:30:21,403 INFO L87 Difference]: Start difference. First operand 156 states and 228 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-13 15:30:21,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:30:21,456 INFO L93 Difference]: Finished difference Result 312 states and 457 transitions. [2024-11-13 15:30:21,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:30:21,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-13 15:30:21,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:30:21,465 INFO L225 Difference]: With dead ends: 312 [2024-11-13 15:30:21,466 INFO L226 Difference]: Without dead ends: 159 [2024-11-13 15:30:21,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:30:21,467 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:30:21,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 647 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:30:21,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-13 15:30:21,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 158. [2024-11-13 15:30:21,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 139 states have (on average 1.410071942446043) internal successors, (196), 139 states have internal predecessors, (196), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-13 15:30:21,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 230 transitions. [2024-11-13 15:30:21,488 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 230 transitions. Word has length 155 [2024-11-13 15:30:21,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:30:21,489 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 230 transitions. [2024-11-13 15:30:21,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-13 15:30:21,489 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 230 transitions. [2024-11-13 15:30:21,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-13 15:30:21,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:30:21,491 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:30:21,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:30:21,491 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:30:21,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:30:21,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1600013307, now seen corresponding path program 1 times [2024-11-13 15:30:21,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:30:21,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657383722] [2024-11-13 15:30:21,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:30:21,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:30:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:30:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:30:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:30:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:30:21,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:30:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:30:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:30:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:30:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:30:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:30:21,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:30:21,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 15:30:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:30:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 15:30:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:30:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 15:30:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-13 15:30:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:30:21,853 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-13 15:30:21,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:30:21,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657383722] [2024-11-13 15:30:21,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657383722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:30:21,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:30:21,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:30:21,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089724066] [2024-11-13 15:30:21,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:30:21,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:30:21,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:30:21,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:30:21,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:30:21,859 INFO L87 Difference]: Start difference. First operand 158 states and 230 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-13 15:30:21,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:30:21,905 INFO L93 Difference]: Finished difference Result 316 states and 461 transitions. [2024-11-13 15:30:21,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:30:21,906 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-13 15:30:21,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:30:21,910 INFO L225 Difference]: With dead ends: 316 [2024-11-13 15:30:21,910 INFO L226 Difference]: Without dead ends: 161 [2024-11-13 15:30:21,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:30:21,914 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:30:21,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 649 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:30:21,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-13 15:30:21,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 160. [2024-11-13 15:30:21,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 141 states have (on average 1.4042553191489362) internal successors, (198), 141 states have internal predecessors, (198), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-13 15:30:21,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 232 transitions. [2024-11-13 15:30:21,935 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 232 transitions. Word has length 155 [2024-11-13 15:30:21,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:30:21,954 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 232 transitions. [2024-11-13 15:30:21,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-13 15:30:21,954 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 232 transitions. [2024-11-13 15:30:21,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-13 15:30:21,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:30:21,958 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:30:21,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:30:21,958 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:30:21,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:30:21,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1601860349, now seen corresponding path program 1 times [2024-11-13 15:30:21,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:30:21,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93279717] [2024-11-13 15:30:21,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:30:21,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:30:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat