./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.11.cil-2.c --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_2c8351dd-5029-4c8b-847c-83182dc7b677/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8351dd-5029-4c8b-847c-83182dc7b677/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_2c8351dd-5029-4c8b-847c-83182dc7b677/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8351dd-5029-4c8b-847c-83182dc7b677/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.11.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8351dd-5029-4c8b-847c-83182dc7b677/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_2c8351dd-5029-4c8b-847c-83182dc7b677/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 c8331ae1a542eb033e77244b050255025a53bdff6172fe7667dd71867965088c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:31:32,814 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:31:32,917 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8351dd-5029-4c8b-847c-83182dc7b677/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 16:31:32,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:31:32,923 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:31:32,964 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:31:32,965 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:31:32,965 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:31:32,965 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:31:32,967 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:31:32,968 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:31:32,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:31:32,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:31:32,969 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:31:32,970 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:31:32,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:31:32,970 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:31:32,970 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:31:32,970 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:31:32,970 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:31:32,971 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:31:32,971 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:31:32,971 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:31:32,971 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:31:32,971 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:31:32,971 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:31:32,971 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:31:32,971 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:31:32,972 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:31:32,972 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:31:32,972 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:31:32,972 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:31:32,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:31:32,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:31:32,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:31:32,972 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:31:32,972 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:31:32,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:31:32,973 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:31:32,973 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:31:32,973 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:31:32,973 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:31:32,973 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_2c8351dd-5029-4c8b-847c-83182dc7b677/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 -> c8331ae1a542eb033e77244b050255025a53bdff6172fe7667dd71867965088c [2024-11-13 16:31:33,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:31:33,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:31:33,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:31:33,340 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:31:33,340 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:31:33,342 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8351dd-5029-4c8b-847c-83182dc7b677/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.11.cil-2.c Unable to find full path for "g++" [2024-11-13 16:31:35,573 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:31:35,939 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:31:35,941 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8351dd-5029-4c8b-847c-83182dc7b677/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.11.cil-2.c [2024-11-13 16:31:35,963 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8351dd-5029-4c8b-847c-83182dc7b677/bin/uautomizer-verify-qhAvR1uOyd/data/5c1b29cc9/df772c7e837a48f6b7a6d6bb7fb8c4e8/FLAG2dd034639 [2024-11-13 16:31:35,982 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8351dd-5029-4c8b-847c-83182dc7b677/bin/uautomizer-verify-qhAvR1uOyd/data/5c1b29cc9/df772c7e837a48f6b7a6d6bb7fb8c4e8 [2024-11-13 16:31:35,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:31:35,986 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:31:35,988 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:31:35,988 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:31:35,994 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:31:35,995 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:31:35" (1/1) ... [2024-11-13 16:31:35,996 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a788ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:35, skipping insertion in model container [2024-11-13 16:31:35,996 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:31:35" (1/1) ... [2024-11-13 16:31:36,048 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:31:36,255 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_2c8351dd-5029-4c8b-847c-83182dc7b677/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.11.cil-2.c[911,924] [2024-11-13 16:31:36,356 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_2c8351dd-5029-4c8b-847c-83182dc7b677/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.11.cil-2.c[8416,8429] [2024-11-13 16:31:36,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:31:36,506 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:31:36,531 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_2c8351dd-5029-4c8b-847c-83182dc7b677/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.11.cil-2.c[911,924] [2024-11-13 16:31:36,585 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_2c8351dd-5029-4c8b-847c-83182dc7b677/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.11.cil-2.c[8416,8429] [2024-11-13 16:31:36,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:31:36,693 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:31:36,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:36 WrapperNode [2024-11-13 16:31:36,696 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:31:36,698 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:31:36,698 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:31:36,698 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:31:36,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:36" (1/1) ... [2024-11-13 16:31:36,727 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:36" (1/1) ... [2024-11-13 16:31:36,789 INFO L138 Inliner]: procedures = 77, calls = 94, calls flagged for inlining = 46, calls inlined = 46, statements flattened = 1028 [2024-11-13 16:31:36,790 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:31:36,791 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:31:36,791 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:31:36,791 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:31:36,803 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:36" (1/1) ... [2024-11-13 16:31:36,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:36" (1/1) ... [2024-11-13 16:31:36,808 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:36" (1/1) ... [2024-11-13 16:31:36,835 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 16:31:36,835 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:36" (1/1) ... [2024-11-13 16:31:36,835 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:36" (1/1) ... [2024-11-13 16:31:36,867 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:36" (1/1) ... [2024-11-13 16:31:36,890 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:36" (1/1) ... [2024-11-13 16:31:36,894 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:36" (1/1) ... [2024-11-13 16:31:36,898 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:36" (1/1) ... [2024-11-13 16:31:36,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:31:36,906 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:31:36,907 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:31:36,907 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:31:36,908 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:36" (1/1) ... [2024-11-13 16:31:36,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:31:36,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8351dd-5029-4c8b-847c-83182dc7b677/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:31:36,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8351dd-5029-4c8b-847c-83182dc7b677/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:31:36,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8351dd-5029-4c8b-847c-83182dc7b677/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:31:36,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:31:36,995 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-13 16:31:36,995 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-13 16:31:36,995 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-13 16:31:36,995 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-13 16:31:36,995 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-13 16:31:36,995 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-13 16:31:36,996 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-13 16:31:36,996 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-13 16:31:36,996 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-13 16:31:36,996 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-13 16:31:36,996 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-13 16:31:36,996 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-13 16:31:36,996 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-13 16:31:36,996 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-13 16:31:36,996 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-13 16:31:36,996 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-13 16:31:36,997 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-13 16:31:36,997 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-13 16:31:36,997 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-13 16:31:36,997 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-13 16:31:36,997 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-13 16:31:36,997 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-13 16:31:36,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:31:36,997 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-13 16:31:36,997 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-13 16:31:36,997 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-13 16:31:36,997 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-13 16:31:36,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:31:36,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:31:36,998 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-13 16:31:36,998 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-13 16:31:37,205 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:31:37,207 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:31:38,475 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1 == ~q_free~0); [2024-11-13 16:31:38,475 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2024-11-13 16:31:38,846 INFO L? ?]: Removed 124 outVars from TransFormulas that were not future-live. [2024-11-13 16:31:38,846 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:31:38,901 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:31:38,901 INFO L316 CfgBuilder]: Removed 18 assume(true) statements. [2024-11-13 16:31:38,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:31:38 BoogieIcfgContainer [2024-11-13 16:31:38,902 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:31:38,908 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:31:38,909 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:31:38,914 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:31:38,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:31:35" (1/3) ... [2024-11-13 16:31:38,915 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f7839b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:31:38, skipping insertion in model container [2024-11-13 16:31:38,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:36" (2/3) ... [2024-11-13 16:31:38,916 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f7839b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:31:38, skipping insertion in model container [2024-11-13 16:31:38,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:31:38" (3/3) ... [2024-11-13 16:31:38,918 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.11.cil-2.c [2024-11-13 16:31:38,938 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:31:38,941 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pc_sfifo_3.cil+token_ring.11.cil-2.c that has 15 procedures, 486 locations, 1 initial locations, 18 loop locations, and 2 error locations. [2024-11-13 16:31:39,052 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:31:39,074 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;@6bbf7f0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:31:39,074 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 16:31:39,082 INFO L276 IsEmpty]: Start isEmpty. Operand has 486 states, 428 states have (on average 1.6168224299065421) internal successors, (692), 434 states have internal predecessors, (692), 41 states have call successors, (41), 14 states have call predecessors, (41), 14 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-13 16:31:39,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 16:31:39,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:31:39,098 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:39,099 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:31:39,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:39,104 INFO L85 PathProgramCache]: Analyzing trace with hash 800793302, now seen corresponding path program 1 times [2024-11-13 16:31:39,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:39,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246261009] [2024-11-13 16:31:39,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:39,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:39,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:39,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:31:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:39,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:31:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:39,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 16:31:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:40,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:31:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:40,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 16:31:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:40,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 16:31:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:40,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 16:31:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:40,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:31:40,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:40,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246261009] [2024-11-13 16:31:40,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246261009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:31:40,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:31:40,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 16:31:40,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845491784] [2024-11-13 16:31:40,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:31:40,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 16:31:40,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:40,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 16:31:40,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:31:40,124 INFO L87 Difference]: Start difference. First operand has 486 states, 428 states have (on average 1.6168224299065421) internal successors, (692), 434 states have internal predecessors, (692), 41 states have call successors, (41), 14 states have call predecessors, (41), 14 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 16:31:42,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:31:42,585 INFO L93 Difference]: Finished difference Result 1096 states and 1737 transitions. [2024-11-13 16:31:42,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 16:31:42,588 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-13 16:31:42,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:31:42,605 INFO L225 Difference]: With dead ends: 1096 [2024-11-13 16:31:42,605 INFO L226 Difference]: Without dead ends: 627 [2024-11-13 16:31:42,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-13 16:31:42,616 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 1225 mSDsluCounter, 1745 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 2166 SdHoareTripleChecker+Invalid, 1550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:31:42,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 2166 Invalid, 1550 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [184 Valid, 1366 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-13 16:31:42,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2024-11-13 16:31:42,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 588. [2024-11-13 16:31:42,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 510 states have (on average 1.511764705882353) internal successors, (771), 516 states have internal predecessors, (771), 54 states have call successors, (54), 21 states have call predecessors, (54), 22 states have return successors, (57), 53 states have call predecessors, (57), 52 states have call successors, (57) [2024-11-13 16:31:42,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 882 transitions. [2024-11-13 16:31:42,790 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 882 transitions. Word has length 65 [2024-11-13 16:31:42,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:31:42,790 INFO L471 AbstractCegarLoop]: Abstraction has 588 states and 882 transitions. [2024-11-13 16:31:42,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 16:31:42,791 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 882 transitions. [2024-11-13 16:31:42,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 16:31:42,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:31:42,797 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:42,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:31:42,798 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:31:42,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:42,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1815285354, now seen corresponding path program 1 times [2024-11-13 16:31:42,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:42,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442096070] [2024-11-13 16:31:42,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:42,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:42,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:43,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:31:43,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:43,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:31:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:43,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 16:31:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:43,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:31:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:43,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 16:31:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:43,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 16:31:43,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:43,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 16:31:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:43,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:31:43,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:43,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442096070] [2024-11-13 16:31:43,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442096070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:31:43,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:31:43,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 16:31:43,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154707589] [2024-11-13 16:31:43,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:31:43,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 16:31:43,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:43,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 16:31:43,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:31:43,258 INFO L87 Difference]: Start difference. First operand 588 states and 882 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 16:31:45,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:31:45,591 INFO L93 Difference]: Finished difference Result 985 states and 1448 transitions. [2024-11-13 16:31:45,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 16:31:45,593 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-13 16:31:45,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:31:45,603 INFO L225 Difference]: With dead ends: 985 [2024-11-13 16:31:45,603 INFO L226 Difference]: Without dead ends: 776 [2024-11-13 16:31:45,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-13 16:31:45,608 INFO L432 NwaCegarLoop]: 466 mSDtfsCounter, 1398 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1430 SdHoareTripleChecker+Valid, 2497 SdHoareTripleChecker+Invalid, 1879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 16:31:45,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1430 Valid, 2497 Invalid, 1879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1758 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 16:31:45,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2024-11-13 16:31:45,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 700. [2024-11-13 16:31:45,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 600 states have (on average 1.495) internal successors, (897), 608 states have internal predecessors, (897), 67 states have call successors, (67), 28 states have call predecessors, (67), 31 states have return successors, (78), 67 states have call predecessors, (78), 65 states have call successors, (78) [2024-11-13 16:31:45,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1042 transitions. [2024-11-13 16:31:45,682 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1042 transitions. Word has length 65 [2024-11-13 16:31:45,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:31:45,683 INFO L471 AbstractCegarLoop]: Abstraction has 700 states and 1042 transitions. [2024-11-13 16:31:45,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 16:31:45,684 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1042 transitions. [2024-11-13 16:31:45,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 16:31:45,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:31:45,690 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:45,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:31:45,690 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:31:45,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:45,690 INFO L85 PathProgramCache]: Analyzing trace with hash 451095832, now seen corresponding path program 1 times [2024-11-13 16:31:45,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:45,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598026423] [2024-11-13 16:31:45,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:45,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:45,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:31:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:45,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:31:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:45,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 16:31:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:45,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:31:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:45,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 16:31:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:45,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 16:31:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:45,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 16:31:45,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:45,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:31:45,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:45,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598026423] [2024-11-13 16:31:45,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598026423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:31:45,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:31:45,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:31:45,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656498381] [2024-11-13 16:31:45,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:31:45,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:31:45,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:45,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:31:45,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:31:45,887 INFO L87 Difference]: Start difference. First operand 700 states and 1042 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-13 16:31:47,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:31:47,647 INFO L93 Difference]: Finished difference Result 1372 states and 1984 transitions. [2024-11-13 16:31:47,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 16:31:47,648 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-13 16:31:47,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:31:47,657 INFO L225 Difference]: With dead ends: 1372 [2024-11-13 16:31:47,658 INFO L226 Difference]: Without dead ends: 1057 [2024-11-13 16:31:47,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-13 16:31:47,662 INFO L432 NwaCegarLoop]: 483 mSDtfsCounter, 1506 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 1973 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:31:47,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1551 Valid, 1973 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 16:31:47,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2024-11-13 16:31:47,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 981. [2024-11-13 16:31:47,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 826 states have (on average 1.4576271186440677) internal successors, (1204), 838 states have internal predecessors, (1204), 97 states have call successors, (97), 49 states have call predecessors, (97), 56 states have return successors, (116), 97 states have call predecessors, (116), 95 states have call successors, (116) [2024-11-13 16:31:47,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1417 transitions. [2024-11-13 16:31:47,796 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1417 transitions. Word has length 65 [2024-11-13 16:31:47,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:31:47,797 INFO L471 AbstractCegarLoop]: Abstraction has 981 states and 1417 transitions. [2024-11-13 16:31:47,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-13 16:31:47,797 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1417 transitions. [2024-11-13 16:31:47,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 16:31:47,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:31:47,802 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:47,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 16:31:47,802 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:31:47,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:47,803 INFO L85 PathProgramCache]: Analyzing trace with hash -601386415, now seen corresponding path program 1 times [2024-11-13 16:31:47,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:47,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059968725] [2024-11-13 16:31:47,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:47,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:47,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:31:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:47,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:31:47,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:47,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 16:31:47,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:48,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:31:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:48,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 16:31:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:48,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 16:31:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:48,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 16:31:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:48,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:31:48,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:48,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059968725] [2024-11-13 16:31:48,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059968725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:31:48,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:31:48,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 16:31:48,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296188799] [2024-11-13 16:31:48,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:31:48,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:31:48,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:48,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:31:48,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:31:48,136 INFO L87 Difference]: Start difference. First operand 981 states and 1417 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 16:31:50,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:31:50,132 INFO L93 Difference]: Finished difference Result 1649 states and 2344 transitions. [2024-11-13 16:31:50,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 16:31:50,133 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-13 16:31:50,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:31:50,141 INFO L225 Difference]: With dead ends: 1649 [2024-11-13 16:31:50,142 INFO L226 Difference]: Without dead ends: 1053 [2024-11-13 16:31:50,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-13 16:31:50,145 INFO L432 NwaCegarLoop]: 417 mSDtfsCounter, 624 mSDsluCounter, 2491 mSDsCounter, 0 mSdLazyCounter, 1954 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 2908 SdHoareTripleChecker+Invalid, 2043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-13 16:31:50,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 2908 Invalid, 2043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1954 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-13 16:31:50,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2024-11-13 16:31:50,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 996. [2024-11-13 16:31:50,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 838 states have (on average 1.4474940334128878) internal successors, (1213), 850 states have internal predecessors, (1213), 97 states have call successors, (97), 49 states have call predecessors, (97), 59 states have return successors, (119), 100 states have call predecessors, (119), 95 states have call successors, (119) [2024-11-13 16:31:50,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 1429 transitions. [2024-11-13 16:31:50,254 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 1429 transitions. Word has length 66 [2024-11-13 16:31:50,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:31:50,255 INFO L471 AbstractCegarLoop]: Abstraction has 996 states and 1429 transitions. [2024-11-13 16:31:50,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 16:31:50,255 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1429 transitions. [2024-11-13 16:31:50,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 16:31:50,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:31:50,257 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:50,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 16:31:50,257 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:31:50,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:50,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1630745713, now seen corresponding path program 1 times [2024-11-13 16:31:50,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:50,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955765555] [2024-11-13 16:31:50,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:50,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:50,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:31:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:50,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:31:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:50,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 16:31:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:50,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:31:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:50,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 16:31:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:50,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 16:31:50,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:50,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 16:31:50,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:50,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:31:50,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:50,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955765555] [2024-11-13 16:31:50,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955765555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:31:50,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:31:50,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 16:31:50,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199568871] [2024-11-13 16:31:50,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:31:50,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:31:50,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:50,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:31:50,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:31:50,502 INFO L87 Difference]: Start difference. First operand 996 states and 1429 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-13 16:31:53,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:31:53,759 INFO L93 Difference]: Finished difference Result 3201 states and 4550 transitions. [2024-11-13 16:31:53,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-13 16:31:53,760 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 66 [2024-11-13 16:31:53,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:31:53,775 INFO L225 Difference]: With dead ends: 3201 [2024-11-13 16:31:53,775 INFO L226 Difference]: Without dead ends: 1359 [2024-11-13 16:31:53,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=235, Invalid=887, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 16:31:53,784 INFO L432 NwaCegarLoop]: 569 mSDtfsCounter, 2601 mSDsluCounter, 2171 mSDsCounter, 0 mSdLazyCounter, 2191 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2621 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 2598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 2191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:31:53,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2621 Valid, 2740 Invalid, 2598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [407 Valid, 2191 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 16:31:53,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2024-11-13 16:31:53,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1204. [2024-11-13 16:31:53,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1204 states, 990 states have (on average 1.4111111111111112) internal successors, (1397), 1006 states have internal predecessors, (1397), 127 states have call successors, (127), 70 states have call predecessors, (127), 85 states have return successors, (168), 131 states have call predecessors, (168), 125 states have call successors, (168) [2024-11-13 16:31:53,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1692 transitions. [2024-11-13 16:31:53,945 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1692 transitions. Word has length 66 [2024-11-13 16:31:53,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:31:53,945 INFO L471 AbstractCegarLoop]: Abstraction has 1204 states and 1692 transitions. [2024-11-13 16:31:53,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-13 16:31:53,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1692 transitions. [2024-11-13 16:31:53,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 16:31:53,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:31:53,949 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:53,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 16:31:53,950 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:31:53,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:53,951 INFO L85 PathProgramCache]: Analyzing trace with hash 715670224, now seen corresponding path program 1 times [2024-11-13 16:31:53,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:53,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120393116] [2024-11-13 16:31:53,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:53,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:53,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:54,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:31:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:54,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:31:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:54,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 16:31:54,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:54,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:31:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:54,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 16:31:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:54,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 16:31:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:54,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 16:31:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:54,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:31:54,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:54,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120393116] [2024-11-13 16:31:54,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120393116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:31:54,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:31:54,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 16:31:54,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431825866] [2024-11-13 16:31:54,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:31:54,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:31:54,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:54,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:31:54,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:31:54,211 INFO L87 Difference]: Start difference. First operand 1204 states and 1692 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 16:31:56,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:31:56,054 INFO L93 Difference]: Finished difference Result 2160 states and 2998 transitions. [2024-11-13 16:31:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 16:31:56,055 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2024-11-13 16:31:56,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:31:56,066 INFO L225 Difference]: With dead ends: 2160 [2024-11-13 16:31:56,066 INFO L226 Difference]: Without dead ends: 1341 [2024-11-13 16:31:56,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-13 16:31:56,071 INFO L432 NwaCegarLoop]: 409 mSDtfsCounter, 621 mSDsluCounter, 2450 mSDsCounter, 0 mSdLazyCounter, 1919 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 2859 SdHoareTripleChecker+Invalid, 2008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:31:56,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 2859 Invalid, 2008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1919 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 16:31:56,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2024-11-13 16:31:56,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1249. [2024-11-13 16:31:56,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1026 states have (on average 1.3966861598440545) internal successors, (1433), 1042 states have internal predecessors, (1433), 127 states have call successors, (127), 70 states have call predecessors, (127), 94 states have return successors, (177), 140 states have call predecessors, (177), 125 states have call successors, (177) [2024-11-13 16:31:56,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1737 transitions. [2024-11-13 16:31:56,234 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1737 transitions. Word has length 67 [2024-11-13 16:31:56,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:31:56,236 INFO L471 AbstractCegarLoop]: Abstraction has 1249 states and 1737 transitions. [2024-11-13 16:31:56,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 16:31:56,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1737 transitions. [2024-11-13 16:31:56,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 16:31:56,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:31:56,241 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:56,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 16:31:56,244 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:31:56,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:56,244 INFO L85 PathProgramCache]: Analyzing trace with hash 2101873618, now seen corresponding path program 1 times [2024-11-13 16:31:56,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:56,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733527469] [2024-11-13 16:31:56,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:56,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:56,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:31:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:56,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:31:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:56,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 16:31:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:56,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:31:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:56,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 16:31:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:56,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 16:31:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:56,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 16:31:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:56,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:31:56,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:56,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733527469] [2024-11-13 16:31:56,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733527469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:31:56,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:31:56,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 16:31:56,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558880811] [2024-11-13 16:31:56,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:31:56,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 16:31:56,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:56,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 16:31:56,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:31:56,515 INFO L87 Difference]: Start difference. First operand 1249 states and 1737 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 16:31:58,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:31:58,472 INFO L93 Difference]: Finished difference Result 2229 states and 3040 transitions. [2024-11-13 16:31:58,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 16:31:58,473 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 67 [2024-11-13 16:31:58,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:31:58,481 INFO L225 Difference]: With dead ends: 2229 [2024-11-13 16:31:58,481 INFO L226 Difference]: Without dead ends: 1452 [2024-11-13 16:31:58,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2024-11-13 16:31:58,484 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 1418 mSDsluCounter, 1712 mSDsCounter, 0 mSdLazyCounter, 1563 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 2092 SdHoareTripleChecker+Invalid, 1714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 1563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 16:31:58,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1450 Valid, 2092 Invalid, 1714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 1563 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 16:31:58,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1452 states. [2024-11-13 16:31:58,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1452 to 1258. [2024-11-13 16:31:58,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1035 states have (on average 1.391304347826087) internal successors, (1440), 1049 states have internal predecessors, (1440), 128 states have call successors, (128), 71 states have call predecessors, (128), 93 states have return successors, (173), 141 states have call predecessors, (173), 126 states have call successors, (173) [2024-11-13 16:31:58,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 1741 transitions. [2024-11-13 16:31:58,605 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 1741 transitions. Word has length 67 [2024-11-13 16:31:58,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:31:58,605 INFO L471 AbstractCegarLoop]: Abstraction has 1258 states and 1741 transitions. [2024-11-13 16:31:58,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 16:31:58,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 1741 transitions. [2024-11-13 16:31:58,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 16:31:58,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:31:58,612 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:58,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 16:31:58,612 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:31:58,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:58,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1967860112, now seen corresponding path program 1 times [2024-11-13 16:31:58,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:58,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889142888] [2024-11-13 16:31:58,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:58,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:58,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:31:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:58,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:31:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:58,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 16:31:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:58,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:31:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:58,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 16:31:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:58,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 16:31:58,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:58,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 16:31:58,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:58,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:31:58,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:58,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889142888] [2024-11-13 16:31:58,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889142888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:31:58,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:31:58,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:31:58,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583721363] [2024-11-13 16:31:58,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:31:58,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:31:58,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:58,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:31:58,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:31:58,766 INFO L87 Difference]: Start difference. First operand 1258 states and 1741 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 16:32:00,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:00,329 INFO L93 Difference]: Finished difference Result 3143 states and 4263 transitions. [2024-11-13 16:32:00,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 16:32:00,330 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 67 [2024-11-13 16:32:00,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:00,344 INFO L225 Difference]: With dead ends: 3143 [2024-11-13 16:32:00,344 INFO L226 Difference]: Without dead ends: 2273 [2024-11-13 16:32:00,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-11-13 16:32:00,349 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 2068 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2103 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:00,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2103 Valid, 1088 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 16:32:00,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2024-11-13 16:32:00,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2107. [2024-11-13 16:32:00,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2107 states, 1689 states have (on average 1.3433984606275904) internal successors, (2269), 1716 states have internal predecessors, (2269), 232 states have call successors, (232), 135 states have call predecessors, (232), 184 states have return successors, (363), 262 states have call predecessors, (363), 230 states have call successors, (363) [2024-11-13 16:32:00,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2107 states to 2107 states and 2864 transitions. [2024-11-13 16:32:00,622 INFO L78 Accepts]: Start accepts. Automaton has 2107 states and 2864 transitions. Word has length 67 [2024-11-13 16:32:00,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:00,623 INFO L471 AbstractCegarLoop]: Abstraction has 2107 states and 2864 transitions. [2024-11-13 16:32:00,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 16:32:00,623 INFO L276 IsEmpty]: Start isEmpty. Operand 2107 states and 2864 transitions. [2024-11-13 16:32:00,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 16:32:00,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:00,628 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:00,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 16:32:00,629 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:00,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:00,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1315393944, now seen corresponding path program 1 times [2024-11-13 16:32:00,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:00,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67539359] [2024-11-13 16:32:00,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:00,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:00,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:32:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:00,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:32:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:00,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 16:32:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:00,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:32:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:00,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 16:32:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:00,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 16:32:00,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:00,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 16:32:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:00,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:32:00,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:00,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67539359] [2024-11-13 16:32:00,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67539359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:00,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:00,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 16:32:00,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421498856] [2024-11-13 16:32:00,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:00,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:32:00,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:00,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:32:00,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:32:00,754 INFO L87 Difference]: Start difference. First operand 2107 states and 2864 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 16:32:01,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:01,874 INFO L93 Difference]: Finished difference Result 3830 states and 5220 transitions. [2024-11-13 16:32:01,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 16:32:01,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2024-11-13 16:32:01,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:01,881 INFO L225 Difference]: With dead ends: 3830 [2024-11-13 16:32:01,881 INFO L226 Difference]: Without dead ends: 365 [2024-11-13 16:32:01,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:32:01,892 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 1545 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1581 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:01,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1581 Valid, 1029 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 16:32:01,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-13 16:32:01,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2024-11-13 16:32:01,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 333 states have (on average 1.5525525525525525) internal successors, (517), 334 states have internal predecessors, (517), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-13 16:32:01,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 567 transitions. [2024-11-13 16:32:01,914 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 567 transitions. Word has length 68 [2024-11-13 16:32:01,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:01,914 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 567 transitions. [2024-11-13 16:32:01,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 16:32:01,914 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 567 transitions. [2024-11-13 16:32:01,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-13 16:32:01,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:01,919 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:01,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 16:32:01,920 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:01,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:01,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1927970883, now seen corresponding path program 1 times [2024-11-13 16:32:01,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:01,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134480480] [2024-11-13 16:32:01,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:01,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:01,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:02,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:32:02,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:02,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 16:32:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:02,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 16:32:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:02,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-13 16:32:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:02,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-13 16:32:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:02,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:32:02,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:02,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134480480] [2024-11-13 16:32:02,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134480480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:02,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:02,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:32:02,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660388993] [2024-11-13 16:32:02,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:02,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:32:02,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:02,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:32:02,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:32:02,212 INFO L87 Difference]: Start difference. First operand 365 states and 567 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:04,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:04,550 INFO L93 Difference]: Finished difference Result 850 states and 1343 transitions. [2024-11-13 16:32:04,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:32:04,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-13 16:32:04,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:04,556 INFO L225 Difference]: With dead ends: 850 [2024-11-13 16:32:04,557 INFO L226 Difference]: Without dead ends: 496 [2024-11-13 16:32:04,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:32:04,559 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 967 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:04,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 724 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 16:32:04,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-13 16:32:04,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 365. [2024-11-13 16:32:04,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 333 states have (on average 1.5495495495495495) internal successors, (516), 334 states have internal predecessors, (516), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-13 16:32:04,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 566 transitions. [2024-11-13 16:32:04,599 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 566 transitions. Word has length 167 [2024-11-13 16:32:04,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:04,600 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 566 transitions. [2024-11-13 16:32:04,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:04,600 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 566 transitions. [2024-11-13 16:32:04,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-13 16:32:04,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:04,603 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:04,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 16:32:04,603 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:04,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:04,603 INFO L85 PathProgramCache]: Analyzing trace with hash -597524799, now seen corresponding path program 1 times [2024-11-13 16:32:04,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:04,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127244807] [2024-11-13 16:32:04,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:04,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:04,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:32:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:04,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 16:32:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:04,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 16:32:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:04,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-13 16:32:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:04,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-13 16:32:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:05,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:32:05,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:05,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127244807] [2024-11-13 16:32:05,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127244807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:05,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:05,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 16:32:05,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487878687] [2024-11-13 16:32:05,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:05,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:32:05,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:05,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:32:05,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:32:05,010 INFO L87 Difference]: Start difference. First operand 365 states and 566 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:09,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:09,040 INFO L93 Difference]: Finished difference Result 1333 states and 2117 transitions. [2024-11-13 16:32:09,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 16:32:09,041 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-13 16:32:09,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:09,045 INFO L225 Difference]: With dead ends: 1333 [2024-11-13 16:32:09,045 INFO L226 Difference]: Without dead ends: 988 [2024-11-13 16:32:09,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-13 16:32:09,047 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 1458 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 2201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:09,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1476 Valid, 1238 Invalid, 2201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-13 16:32:09,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2024-11-13 16:32:09,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 727. [2024-11-13 16:32:09,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 668 states have (on average 1.561377245508982) internal successors, (1043), 670 states have internal predecessors, (1043), 45 states have call successors, (45), 12 states have call predecessors, (45), 13 states have return successors, (48), 45 states have call predecessors, (48), 45 states have call successors, (48) [2024-11-13 16:32:09,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 1136 transitions. [2024-11-13 16:32:09,126 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 1136 transitions. Word has length 167 [2024-11-13 16:32:09,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:09,127 INFO L471 AbstractCegarLoop]: Abstraction has 727 states and 1136 transitions. [2024-11-13 16:32:09,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:09,127 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 1136 transitions. [2024-11-13 16:32:09,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-13 16:32:09,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:09,129 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:09,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 16:32:09,130 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:09,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:09,130 INFO L85 PathProgramCache]: Analyzing trace with hash 402061381, now seen corresponding path program 1 times [2024-11-13 16:32:09,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:09,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71578852] [2024-11-13 16:32:09,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:09,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:09,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:32:09,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:09,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 16:32:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:09,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 16:32:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:09,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-13 16:32:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:09,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-13 16:32:09,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:09,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:32:09,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:09,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71578852] [2024-11-13 16:32:09,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71578852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:09,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:09,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:32:09,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964072105] [2024-11-13 16:32:09,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:09,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:32:09,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:09,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:32:09,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:32:09,492 INFO L87 Difference]: Start difference. First operand 727 states and 1136 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:14,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:14,318 INFO L93 Difference]: Finished difference Result 2205 states and 3506 transitions. [2024-11-13 16:32:14,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 16:32:14,319 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-13 16:32:14,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:14,326 INFO L225 Difference]: With dead ends: 2205 [2024-11-13 16:32:14,326 INFO L226 Difference]: Without dead ends: 1498 [2024-11-13 16:32:14,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 16:32:14,328 INFO L432 NwaCegarLoop]: 540 mSDtfsCounter, 1497 mSDsluCounter, 1856 mSDsCounter, 0 mSdLazyCounter, 3320 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 2396 SdHoareTripleChecker+Invalid, 3379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:14,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 2396 Invalid, 3379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3320 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-13 16:32:14,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2024-11-13 16:32:14,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1064. [2024-11-13 16:32:14,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 978 states have (on average 1.5541922290388548) internal successors, (1520), 981 states have internal predecessors, (1520), 65 states have call successors, (65), 18 states have call predecessors, (65), 20 states have return successors, (70), 66 states have call predecessors, (70), 65 states have call successors, (70) [2024-11-13 16:32:14,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1655 transitions. [2024-11-13 16:32:14,430 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1655 transitions. Word has length 167 [2024-11-13 16:32:14,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:14,431 INFO L471 AbstractCegarLoop]: Abstraction has 1064 states and 1655 transitions. [2024-11-13 16:32:14,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:14,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1655 transitions. [2024-11-13 16:32:14,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-13 16:32:14,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:14,435 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:14,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 16:32:14,436 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:14,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:14,437 INFO L85 PathProgramCache]: Analyzing trace with hash 740348931, now seen corresponding path program 1 times [2024-11-13 16:32:14,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:14,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880340984] [2024-11-13 16:32:14,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:14,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:14,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:32:14,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:14,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 16:32:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:14,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 16:32:14,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:14,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-13 16:32:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:14,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-13 16:32:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:14,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:32:14,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:14,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880340984] [2024-11-13 16:32:14,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880340984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:14,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:14,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:32:14,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881577595] [2024-11-13 16:32:14,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:14,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:32:14,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:14,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:32:14,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:32:14,846 INFO L87 Difference]: Start difference. First operand 1064 states and 1655 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:17,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:17,558 INFO L93 Difference]: Finished difference Result 2558 states and 4063 transitions. [2024-11-13 16:32:17,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 16:32:17,558 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-13 16:32:17,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:17,565 INFO L225 Difference]: With dead ends: 2558 [2024-11-13 16:32:17,566 INFO L226 Difference]: Without dead ends: 1514 [2024-11-13 16:32:17,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-13 16:32:17,570 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 1304 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 1467 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 1556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:17,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1323 Valid, 1015 Invalid, 1556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1467 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 16:32:17,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2024-11-13 16:32:17,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1064. [2024-11-13 16:32:17,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 978 states have (on average 1.5511247443762781) internal successors, (1517), 981 states have internal predecessors, (1517), 65 states have call successors, (65), 18 states have call predecessors, (65), 20 states have return successors, (70), 66 states have call predecessors, (70), 65 states have call successors, (70) [2024-11-13 16:32:17,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1652 transitions. [2024-11-13 16:32:17,680 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1652 transitions. Word has length 167 [2024-11-13 16:32:17,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:17,682 INFO L471 AbstractCegarLoop]: Abstraction has 1064 states and 1652 transitions. [2024-11-13 16:32:17,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:17,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1652 transitions. [2024-11-13 16:32:17,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-13 16:32:17,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:17,685 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:17,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 16:32:17,685 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:17,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:17,686 INFO L85 PathProgramCache]: Analyzing trace with hash 199919425, now seen corresponding path program 1 times [2024-11-13 16:32:17,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:17,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704751727] [2024-11-13 16:32:17,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:17,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:17,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:32:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:17,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 16:32:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:18,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 16:32:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:18,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-13 16:32:18,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:18,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-13 16:32:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:18,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:32:18,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:18,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704751727] [2024-11-13 16:32:18,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704751727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:18,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:18,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:32:18,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075537773] [2024-11-13 16:32:18,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:18,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:32:18,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:18,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:32:18,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:32:18,080 INFO L87 Difference]: Start difference. First operand 1064 states and 1652 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:20,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:20,582 INFO L93 Difference]: Finished difference Result 2554 states and 4046 transitions. [2024-11-13 16:32:20,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 16:32:20,583 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-13 16:32:20,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:20,598 INFO L225 Difference]: With dead ends: 2554 [2024-11-13 16:32:20,598 INFO L226 Difference]: Without dead ends: 1510 [2024-11-13 16:32:20,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-13 16:32:20,601 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 1220 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 1538 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 1626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:20,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1239 Valid, 1016 Invalid, 1626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1538 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 16:32:20,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2024-11-13 16:32:20,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1064. [2024-11-13 16:32:20,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 978 states have (on average 1.5480572597137015) internal successors, (1514), 981 states have internal predecessors, (1514), 65 states have call successors, (65), 18 states have call predecessors, (65), 20 states have return successors, (70), 66 states have call predecessors, (70), 65 states have call successors, (70) [2024-11-13 16:32:20,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1649 transitions. [2024-11-13 16:32:20,716 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1649 transitions. Word has length 167 [2024-11-13 16:32:20,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:20,717 INFO L471 AbstractCegarLoop]: Abstraction has 1064 states and 1649 transitions. [2024-11-13 16:32:20,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:20,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1649 transitions. [2024-11-13 16:32:20,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-13 16:32:20,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:20,720 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:20,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 16:32:20,720 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:20,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:20,721 INFO L85 PathProgramCache]: Analyzing trace with hash 43938883, now seen corresponding path program 1 times [2024-11-13 16:32:20,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:20,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306178007] [2024-11-13 16:32:20,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:20,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:20,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:20,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:32:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:21,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 16:32:21,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:21,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 16:32:21,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:21,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-13 16:32:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:21,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-13 16:32:21,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:21,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:32:21,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:21,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306178007] [2024-11-13 16:32:21,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306178007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:21,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:21,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:32:21,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551780958] [2024-11-13 16:32:21,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:21,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:32:21,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:21,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:32:21,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:32:21,217 INFO L87 Difference]: Start difference. First operand 1064 states and 1649 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:26,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:26,871 INFO L93 Difference]: Finished difference Result 3482 states and 5493 transitions. [2024-11-13 16:32:26,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 16:32:26,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-13 16:32:26,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:26,881 INFO L225 Difference]: With dead ends: 3482 [2024-11-13 16:32:26,881 INFO L226 Difference]: Without dead ends: 2438 [2024-11-13 16:32:26,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 16:32:26,887 INFO L432 NwaCegarLoop]: 538 mSDtfsCounter, 1477 mSDsluCounter, 1856 mSDsCounter, 0 mSdLazyCounter, 3249 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 3310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:26,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 2394 Invalid, 3310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3249 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-13 16:32:26,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2438 states. [2024-11-13 16:32:27,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2438 to 1748. [2024-11-13 16:32:27,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1748 states, 1608 states have (on average 1.5416666666666667) internal successors, (2479), 1613 states have internal predecessors, (2479), 105 states have call successors, (105), 30 states have call predecessors, (105), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-11-13 16:32:27,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2702 transitions. [2024-11-13 16:32:27,089 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2702 transitions. Word has length 167 [2024-11-13 16:32:27,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:27,090 INFO L471 AbstractCegarLoop]: Abstraction has 1748 states and 2702 transitions. [2024-11-13 16:32:27,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:27,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2702 transitions. [2024-11-13 16:32:27,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-13 16:32:27,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:27,094 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:27,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 16:32:27,094 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:27,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:27,095 INFO L85 PathProgramCache]: Analyzing trace with hash 454549249, now seen corresponding path program 1 times [2024-11-13 16:32:27,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:27,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669498582] [2024-11-13 16:32:27,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:27,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:27,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:32:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:27,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 16:32:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:27,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 16:32:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:27,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-13 16:32:27,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:27,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-13 16:32:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:27,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:32:27,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:27,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669498582] [2024-11-13 16:32:27,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669498582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:27,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:27,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:32:27,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95029921] [2024-11-13 16:32:27,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:27,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:32:27,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:27,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:32:27,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:32:27,434 INFO L87 Difference]: Start difference. First operand 1748 states and 2702 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:30,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:30,399 INFO L93 Difference]: Finished difference Result 4154 states and 6535 transitions. [2024-11-13 16:32:30,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 16:32:30,400 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-13 16:32:30,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:30,413 INFO L225 Difference]: With dead ends: 4154 [2024-11-13 16:32:30,413 INFO L226 Difference]: Without dead ends: 2426 [2024-11-13 16:32:30,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-13 16:32:30,418 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 1065 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 1670 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 1733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:30,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 1210 Invalid, 1733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1670 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 16:32:30,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2426 states. [2024-11-13 16:32:30,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2426 to 1748. [2024-11-13 16:32:30,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1748 states, 1608 states have (on average 1.5385572139303483) internal successors, (2474), 1613 states have internal predecessors, (2474), 105 states have call successors, (105), 30 states have call predecessors, (105), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-11-13 16:32:30,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2697 transitions. [2024-11-13 16:32:30,587 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2697 transitions. Word has length 167 [2024-11-13 16:32:30,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:30,587 INFO L471 AbstractCegarLoop]: Abstraction has 1748 states and 2697 transitions. [2024-11-13 16:32:30,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:30,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2697 transitions. [2024-11-13 16:32:30,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-13 16:32:30,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:30,591 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:30,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 16:32:30,592 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:30,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:30,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1333320573, now seen corresponding path program 1 times [2024-11-13 16:32:30,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:30,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370322958] [2024-11-13 16:32:30,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:30,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:30,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:32:30,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:30,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 16:32:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:30,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 16:32:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:30,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-13 16:32:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:30,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-13 16:32:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:30,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:32:30,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:30,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370322958] [2024-11-13 16:32:30,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370322958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:30,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:30,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:32:30,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938659663] [2024-11-13 16:32:30,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:30,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:32:30,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:30,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:32:30,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:32:30,981 INFO L87 Difference]: Start difference. First operand 1748 states and 2697 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:36,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:36,594 INFO L93 Difference]: Finished difference Result 5958 states and 9330 transitions. [2024-11-13 16:32:36,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 16:32:36,595 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-13 16:32:36,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:36,611 INFO L225 Difference]: With dead ends: 5958 [2024-11-13 16:32:36,611 INFO L226 Difference]: Without dead ends: 4230 [2024-11-13 16:32:36,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 16:32:36,618 INFO L432 NwaCegarLoop]: 538 mSDtfsCounter, 1469 mSDsluCounter, 1856 mSDsCounter, 0 mSdLazyCounter, 3211 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 3272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:36,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1487 Valid, 2394 Invalid, 3272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3211 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-13 16:32:36,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4230 states. [2024-11-13 16:32:36,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4230 to 3118. [2024-11-13 16:32:36,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 2870 states have (on average 1.532404181184669) internal successors, (4398), 2879 states have internal predecessors, (4398), 185 states have call successors, (185), 54 states have call predecessors, (185), 62 states have return successors, (220), 192 states have call predecessors, (220), 185 states have call successors, (220) [2024-11-13 16:32:36,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 4803 transitions. [2024-11-13 16:32:36,941 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 4803 transitions. Word has length 167 [2024-11-13 16:32:36,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:36,941 INFO L471 AbstractCegarLoop]: Abstraction has 3118 states and 4803 transitions. [2024-11-13 16:32:36,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:36,942 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 4803 transitions. [2024-11-13 16:32:36,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-13 16:32:36,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:36,944 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:36,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 16:32:36,945 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:36,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:36,945 INFO L85 PathProgramCache]: Analyzing trace with hash 825763521, now seen corresponding path program 1 times [2024-11-13 16:32:36,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:36,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470102670] [2024-11-13 16:32:36,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:36,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:37,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:32:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:37,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 16:32:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:37,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 16:32:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:37,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-13 16:32:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:37,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-13 16:32:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:37,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:32:37,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:37,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470102670] [2024-11-13 16:32:37,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470102670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:37,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:37,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:32:37,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577015995] [2024-11-13 16:32:37,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:37,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:32:37,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:37,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:32:37,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:32:37,293 INFO L87 Difference]: Start difference. First operand 3118 states and 4803 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:40,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:40,036 INFO L93 Difference]: Finished difference Result 7346 states and 11498 transitions. [2024-11-13 16:32:40,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 16:32:40,037 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-13 16:32:40,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:40,063 INFO L225 Difference]: With dead ends: 7346 [2024-11-13 16:32:40,064 INFO L226 Difference]: Without dead ends: 4248 [2024-11-13 16:32:40,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-13 16:32:40,072 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 1218 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 1582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:40,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1237 Valid, 1016 Invalid, 1582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-13 16:32:40,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4248 states. [2024-11-13 16:32:40,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4248 to 3118. [2024-11-13 16:32:40,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 2870 states have (on average 1.5292682926829269) internal successors, (4389), 2879 states have internal predecessors, (4389), 185 states have call successors, (185), 54 states have call predecessors, (185), 62 states have return successors, (220), 192 states have call predecessors, (220), 185 states have call successors, (220) [2024-11-13 16:32:40,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 4794 transitions. [2024-11-13 16:32:40,427 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 4794 transitions. Word has length 167 [2024-11-13 16:32:40,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:40,427 INFO L471 AbstractCegarLoop]: Abstraction has 3118 states and 4794 transitions. [2024-11-13 16:32:40,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:40,428 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 4794 transitions. [2024-11-13 16:32:40,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-13 16:32:40,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:40,432 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:40,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 16:32:40,432 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:40,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:40,433 INFO L85 PathProgramCache]: Analyzing trace with hash 895411395, now seen corresponding path program 1 times [2024-11-13 16:32:40,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:40,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652201421] [2024-11-13 16:32:40,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:40,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:40,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:32:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:40,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 16:32:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:40,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 16:32:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:40,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-13 16:32:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:40,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-13 16:32:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:40,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:32:40,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:40,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652201421] [2024-11-13 16:32:40,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652201421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:40,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:40,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:32:40,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215804368] [2024-11-13 16:32:40,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:40,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:32:40,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:40,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:32:40,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:32:40,796 INFO L87 Difference]: Start difference. First operand 3118 states and 4794 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:46,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:46,659 INFO L93 Difference]: Finished difference Result 10908 states and 16998 transitions. [2024-11-13 16:32:46,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 16:32:46,660 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-13 16:32:46,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:46,691 INFO L225 Difference]: With dead ends: 10908 [2024-11-13 16:32:46,692 INFO L226 Difference]: Without dead ends: 7810 [2024-11-13 16:32:46,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 16:32:46,701 INFO L432 NwaCegarLoop]: 538 mSDtfsCounter, 1467 mSDsluCounter, 1856 mSDsCounter, 0 mSdLazyCounter, 3168 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 3229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:46,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 2394 Invalid, 3229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3168 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-13 16:32:46,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7810 states. [2024-11-13 16:32:47,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7810 to 5872. [2024-11-13 16:32:47,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5872 states, 5408 states have (on average 1.5245931952662721) internal successors, (8245), 5425 states have internal predecessors, (8245), 345 states have call successors, (345), 102 states have call predecessors, (345), 118 states have return successors, (442), 360 states have call predecessors, (442), 345 states have call successors, (442) [2024-11-13 16:32:47,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5872 states to 5872 states and 9032 transitions. [2024-11-13 16:32:47,198 INFO L78 Accepts]: Start accepts. Automaton has 5872 states and 9032 transitions. Word has length 167 [2024-11-13 16:32:47,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:47,199 INFO L471 AbstractCegarLoop]: Abstraction has 5872 states and 9032 transitions. [2024-11-13 16:32:47,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:47,199 INFO L276 IsEmpty]: Start isEmpty. Operand 5872 states and 9032 transitions. [2024-11-13 16:32:47,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-13 16:32:47,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:47,204 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:47,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 16:32:47,205 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:47,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:47,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1313300097, now seen corresponding path program 1 times [2024-11-13 16:32:47,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:47,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961286544] [2024-11-13 16:32:47,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:47,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:47,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:32:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:47,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 16:32:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:47,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 16:32:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:47,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-13 16:32:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:47,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-13 16:32:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:47,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:32:47,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:47,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961286544] [2024-11-13 16:32:47,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961286544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:47,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:47,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:32:47,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877768212] [2024-11-13 16:32:47,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:47,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:32:47,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:47,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:32:47,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:32:47,565 INFO L87 Difference]: Start difference. First operand 5872 states and 9032 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:50,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:50,790 INFO L93 Difference]: Finished difference Result 13712 states and 21405 transitions. [2024-11-13 16:32:50,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 16:32:50,791 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-13 16:32:50,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:50,824 INFO L225 Difference]: With dead ends: 13712 [2024-11-13 16:32:50,824 INFO L226 Difference]: Without dead ends: 7860 [2024-11-13 16:32:50,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-13 16:32:50,840 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 1117 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 1526 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 1590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:50,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 1209 Invalid, 1590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1526 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-13 16:32:50,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7860 states. [2024-11-13 16:32:51,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7860 to 5872. [2024-11-13 16:32:51,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5872 states, 5408 states have (on average 1.5214497041420119) internal successors, (8228), 5425 states have internal predecessors, (8228), 345 states have call successors, (345), 102 states have call predecessors, (345), 118 states have return successors, (442), 360 states have call predecessors, (442), 345 states have call successors, (442) [2024-11-13 16:32:51,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5872 states to 5872 states and 9015 transitions. [2024-11-13 16:32:51,527 INFO L78 Accepts]: Start accepts. Automaton has 5872 states and 9015 transitions. Word has length 167 [2024-11-13 16:32:51,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:51,528 INFO L471 AbstractCegarLoop]: Abstraction has 5872 states and 9015 transitions. [2024-11-13 16:32:51,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:51,528 INFO L276 IsEmpty]: Start isEmpty. Operand 5872 states and 9015 transitions. [2024-11-13 16:32:51,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-13 16:32:51,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:51,533 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:51,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 16:32:51,534 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:51,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:51,534 INFO L85 PathProgramCache]: Analyzing trace with hash -304140353, now seen corresponding path program 1 times [2024-11-13 16:32:51,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:51,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309165923] [2024-11-13 16:32:51,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:51,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:51,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:51,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:32:51,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:51,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 16:32:51,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:51,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 16:32:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:51,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-13 16:32:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:51,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-13 16:32:51,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:51,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:32:51,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:51,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309165923] [2024-11-13 16:32:51,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309165923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:51,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:51,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:32:51,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390986605] [2024-11-13 16:32:51,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:51,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:32:51,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:51,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:32:51,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:32:51,859 INFO L87 Difference]: Start difference. First operand 5872 states and 9015 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:54,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:54,994 INFO L93 Difference]: Finished difference Result 13694 states and 21318 transitions. [2024-11-13 16:32:54,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 16:32:54,994 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-13 16:32:54,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:55,037 INFO L225 Difference]: With dead ends: 13694 [2024-11-13 16:32:55,037 INFO L226 Difference]: Without dead ends: 7842 [2024-11-13 16:32:55,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-13 16:32:55,056 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 1217 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:55,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1236 Valid, 1014 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1449 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-13 16:32:55,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7842 states. [2024-11-13 16:32:55,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7842 to 5872. [2024-11-13 16:32:55,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5872 states, 5408 states have (on average 1.5183062130177514) internal successors, (8211), 5425 states have internal predecessors, (8211), 345 states have call successors, (345), 102 states have call predecessors, (345), 118 states have return successors, (442), 360 states have call predecessors, (442), 345 states have call successors, (442) [2024-11-13 16:32:55,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5872 states to 5872 states and 8998 transitions. [2024-11-13 16:32:55,856 INFO L78 Accepts]: Start accepts. Automaton has 5872 states and 8998 transitions. Word has length 167 [2024-11-13 16:32:55,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:55,856 INFO L471 AbstractCegarLoop]: Abstraction has 5872 states and 8998 transitions. [2024-11-13 16:32:55,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:32:55,857 INFO L276 IsEmpty]: Start isEmpty. Operand 5872 states and 8998 transitions. [2024-11-13 16:32:55,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-13 16:32:55,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:55,863 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:55,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 16:32:55,863 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:55,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:55,863 INFO L85 PathProgramCache]: Analyzing trace with hash 59326145, now seen corresponding path program 1 times [2024-11-13 16:32:55,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:55,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136130953] [2024-11-13 16:32:55,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:55,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:55,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:32:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:56,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 16:32:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:56,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 16:32:56,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:56,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-13 16:32:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:56,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-13 16:32:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:56,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:32:56,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:56,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136130953] [2024-11-13 16:32:56,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136130953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:56,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:56,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:32:56,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829476899] [2024-11-13 16:32:56,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:56,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:32:56,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:56,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:32:56,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:32:56,203 INFO L87 Difference]: Start difference. First operand 5872 states and 8998 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:33:03,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:33:03,036 INFO L93 Difference]: Finished difference Result 23190 states and 35928 transitions. [2024-11-13 16:33:03,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 16:33:03,042 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-13 16:33:03,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:33:03,103 INFO L225 Difference]: With dead ends: 23190 [2024-11-13 16:33:03,103 INFO L226 Difference]: Without dead ends: 17338 [2024-11-13 16:33:03,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-13 16:33:03,122 INFO L432 NwaCegarLoop]: 535 mSDtfsCounter, 1855 mSDsluCounter, 1845 mSDsCounter, 0 mSdLazyCounter, 3083 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1885 SdHoareTripleChecker+Valid, 2380 SdHoareTripleChecker+Invalid, 3147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:33:03,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1885 Valid, 2380 Invalid, 3147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3083 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-13 16:33:03,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17338 states. [2024-11-13 16:33:04,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17338 to 11316. [2024-11-13 16:33:04,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11316 states, 10436 states have (on average 1.515810655423534) internal successors, (15819), 10469 states have internal predecessors, (15819), 649 states have call successors, (649), 198 states have call predecessors, (649), 230 states have return successors, (924), 680 states have call predecessors, (924), 649 states have call successors, (924) [2024-11-13 16:33:04,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11316 states to 11316 states and 17392 transitions. [2024-11-13 16:33:04,885 INFO L78 Accepts]: Start accepts. Automaton has 11316 states and 17392 transitions. Word has length 167 [2024-11-13 16:33:04,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:33:04,886 INFO L471 AbstractCegarLoop]: Abstraction has 11316 states and 17392 transitions. [2024-11-13 16:33:04,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:33:04,886 INFO L276 IsEmpty]: Start isEmpty. Operand 11316 states and 17392 transitions. [2024-11-13 16:33:04,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-13 16:33:04,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:33:04,894 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:04,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 16:33:04,895 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:33:04,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:33:04,895 INFO L85 PathProgramCache]: Analyzing trace with hash 348145535, now seen corresponding path program 1 times [2024-11-13 16:33:04,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:33:04,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886724690] [2024-11-13 16:33:04,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:04,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:33:04,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:04,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:33:04,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:05,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 16:33:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:05,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 16:33:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:05,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-13 16:33:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:05,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-13 16:33:05,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:05,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:33:05,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:33:05,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886724690] [2024-11-13 16:33:05,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886724690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:33:05,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:33:05,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:33:05,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413559671] [2024-11-13 16:33:05,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:33:05,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:33:05,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:33:05,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:33:05,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:33:05,237 INFO L87 Difference]: Start difference. First operand 11316 states and 17392 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:33:14,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:33:14,058 INFO L93 Difference]: Finished difference Result 44648 states and 69364 transitions. [2024-11-13 16:33:14,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 16:33:14,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-13 16:33:14,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:33:14,176 INFO L225 Difference]: With dead ends: 44648 [2024-11-13 16:33:14,177 INFO L226 Difference]: Without dead ends: 33352 [2024-11-13 16:33:14,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-13 16:33:14,213 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 1540 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 3696 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1557 SdHoareTripleChecker+Valid, 2384 SdHoareTripleChecker+Invalid, 3759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-13 16:33:14,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1557 Valid, 2384 Invalid, 3759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3696 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-13 16:33:14,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33352 states. [2024-11-13 16:33:16,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33352 to 22261. [2024-11-13 16:33:16,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22261 states, 20565 states have (on average 1.5154388524191587) internal successors, (31165), 20630 states have internal predecessors, (31165), 1241 states have call successors, (1241), 390 states have call predecessors, (1241), 454 states have return successors, (2034), 1304 states have call predecessors, (2034), 1241 states have call successors, (2034) [2024-11-13 16:33:16,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22261 states to 22261 states and 34440 transitions. [2024-11-13 16:33:16,526 INFO L78 Accepts]: Start accepts. Automaton has 22261 states and 34440 transitions. Word has length 167 [2024-11-13 16:33:16,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:33:16,526 INFO L471 AbstractCegarLoop]: Abstraction has 22261 states and 34440 transitions. [2024-11-13 16:33:16,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:33:16,527 INFO L276 IsEmpty]: Start isEmpty. Operand 22261 states and 34440 transitions. [2024-11-13 16:33:16,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-13 16:33:16,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:33:16,538 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:16,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-13 16:33:16,539 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:33:16,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:33:16,539 INFO L85 PathProgramCache]: Analyzing trace with hash -196727039, now seen corresponding path program 1 times [2024-11-13 16:33:16,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:33:16,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442624704] [2024-11-13 16:33:16,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:16,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:33:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:16,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:33:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:16,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 16:33:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:16,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 16:33:16,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:16,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-13 16:33:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:16,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-13 16:33:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:16,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:33:16,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:33:16,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442624704] [2024-11-13 16:33:16,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442624704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:33:16,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:33:16,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:33:16,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564292242] [2024-11-13 16:33:16,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:33:16,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:33:16,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:33:16,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:33:16,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:33:16,871 INFO L87 Difference]: Start difference. First operand 22261 states and 34440 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:33:28,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:33:28,153 INFO L93 Difference]: Finished difference Result 87175 states and 136282 transitions. [2024-11-13 16:33:28,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 16:33:28,154 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-13 16:33:28,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:33:28,325 INFO L225 Difference]: With dead ends: 87175 [2024-11-13 16:33:28,325 INFO L226 Difference]: Without dead ends: 64934 [2024-11-13 16:33:28,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-13 16:33:28,386 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 1776 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 3058 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1806 SdHoareTripleChecker+Valid, 2384 SdHoareTripleChecker+Invalid, 3122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:33:28,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1806 Valid, 2384 Invalid, 3122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3058 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-13 16:33:28,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64934 states. [2024-11-13 16:33:33,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64934 to 44118. [2024-11-13 16:33:33,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44118 states, 40822 states have (on average 1.5160207731125375) internal successors, (61887), 40951 states have internal predecessors, (61887), 2393 states have call successors, (2393), 774 states have call predecessors, (2393), 902 states have return successors, (4708), 2520 states have call predecessors, (4708), 2393 states have call successors, (4708) [2024-11-13 16:33:34,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44118 states to 44118 states and 68988 transitions. [2024-11-13 16:33:34,145 INFO L78 Accepts]: Start accepts. Automaton has 44118 states and 68988 transitions. Word has length 167 [2024-11-13 16:33:34,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:33:34,145 INFO L471 AbstractCegarLoop]: Abstraction has 44118 states and 68988 transitions. [2024-11-13 16:33:34,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:33:34,146 INFO L276 IsEmpty]: Start isEmpty. Operand 44118 states and 68988 transitions. [2024-11-13 16:33:34,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-13 16:33:34,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:33:34,160 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:34,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-13 16:33:34,160 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:33:34,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:33:34,161 INFO L85 PathProgramCache]: Analyzing trace with hash 478433087, now seen corresponding path program 1 times [2024-11-13 16:33:34,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:33:34,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205678578] [2024-11-13 16:33:34,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:34,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:33:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:34,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:33:34,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:34,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 16:33:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:34,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 16:33:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:34,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-13 16:33:34,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:34,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-13 16:33:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:34,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:33:34,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:33:34,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205678578] [2024-11-13 16:33:34,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205678578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:33:34,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:33:34,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:33:34,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432217676] [2024-11-13 16:33:34,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:33:34,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:33:34,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:33:34,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:33:34,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:33:34,486 INFO L87 Difference]: Start difference. First operand 44118 states and 68988 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:33:50,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:33:50,910 INFO L93 Difference]: Finished difference Result 171046 states and 270176 transitions. [2024-11-13 16:33:50,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 16:33:50,910 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-13 16:33:50,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:33:51,281 INFO L225 Difference]: With dead ends: 171046 [2024-11-13 16:33:51,281 INFO L226 Difference]: Without dead ends: 126948 [2024-11-13 16:33:51,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-13 16:33:51,396 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 1736 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 3045 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 2384 SdHoareTripleChecker+Invalid, 3109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:33:51,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 2384 Invalid, 3109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3045 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-13 16:33:51,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126948 states.