./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.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_134dbf24-90d3-4b0c-acdd-211e6dadf88d/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_134dbf24-90d3-4b0c-acdd-211e6dadf88d/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_134dbf24-90d3-4b0c-acdd-211e6dadf88d/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_134dbf24-90d3-4b0c-acdd-211e6dadf88d/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_134dbf24-90d3-4b0c-acdd-211e6dadf88d/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_134dbf24-90d3-4b0c-acdd-211e6dadf88d/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 8eb51bb6f9c94e581d6ba21c25f6021e38364df0ee9c7b7b096e4c3b9d6ac008 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:23:58,868 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:23:58,963 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_134dbf24-90d3-4b0c-acdd-211e6dadf88d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 14:23:58,968 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:23:58,968 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:23:58,991 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:23:58,992 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:23:58,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:23:58,992 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:23:58,993 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:23:58,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:23:58,993 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:23:58,993 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:23:58,993 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:23:58,994 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:23:58,994 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:23:58,994 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:23:58,994 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:23:58,994 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:23:58,994 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:23:58,995 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:23:58,995 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:23:58,995 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:23:58,995 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:23:58,995 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:23:58,995 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:23:58,995 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:23:58,996 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:23:58,996 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:23:58,996 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:23:58,998 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:23:58,999 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:23:58,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:23:58,999 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:23:58,999 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:23:58,999 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:23:58,999 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:23:58,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:23:58,999 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:23:59,000 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:23:59,000 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:23:59,000 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:23:59,000 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_134dbf24-90d3-4b0c-acdd-211e6dadf88d/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 -> 8eb51bb6f9c94e581d6ba21c25f6021e38364df0ee9c7b7b096e4c3b9d6ac008 [2024-11-13 14:23:59,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:23:59,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:23:59,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:23:59,315 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:23:59,315 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:23:59,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_134dbf24-90d3-4b0c-acdd-211e6dadf88d/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c Unable to find full path for "g++" [2024-11-13 14:24:01,276 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:24:01,595 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:24:01,596 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_134dbf24-90d3-4b0c-acdd-211e6dadf88d/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-13 14:24:01,606 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_134dbf24-90d3-4b0c-acdd-211e6dadf88d/bin/uautomizer-verify-qhAvR1uOyd/data/6fc5a8a25/95a546f8f25b4d1999340b4cb5104bda/FLAG5bb5905ae [2024-11-13 14:24:01,625 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_134dbf24-90d3-4b0c-acdd-211e6dadf88d/bin/uautomizer-verify-qhAvR1uOyd/data/6fc5a8a25/95a546f8f25b4d1999340b4cb5104bda [2024-11-13 14:24:01,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:24:01,629 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:24:01,631 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:24:01,631 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:24:01,635 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:24:01,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:24:01" (1/1) ... [2024-11-13 14:24:01,640 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@459bcff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:01, skipping insertion in model container [2024-11-13 14:24:01,640 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:24:01" (1/1) ... [2024-11-13 14:24:01,678 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:24:01,902 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_134dbf24-90d3-4b0c-acdd-211e6dadf88d/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[7920,7933] [2024-11-13 14:24:01,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:24:01,969 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:24:02,029 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_134dbf24-90d3-4b0c-acdd-211e6dadf88d/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[7920,7933] [2024-11-13 14:24:02,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:24:02,086 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:24:02,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:02 WrapperNode [2024-11-13 14:24:02,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:24:02,088 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:24:02,088 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:24:02,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:24:02,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:02" (1/1) ... [2024-11-13 14:24:02,115 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:02" (1/1) ... [2024-11-13 14:24:02,179 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 688 [2024-11-13 14:24:02,181 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:24:02,182 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:24:02,183 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:24:02,183 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:24:02,192 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:02" (1/1) ... [2024-11-13 14:24:02,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:02" (1/1) ... [2024-11-13 14:24:02,196 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:02" (1/1) ... [2024-11-13 14:24:02,230 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 14:24:02,231 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:02" (1/1) ... [2024-11-13 14:24:02,234 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:02" (1/1) ... [2024-11-13 14:24:02,251 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:02" (1/1) ... [2024-11-13 14:24:02,261 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:02" (1/1) ... [2024-11-13 14:24:02,265 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:02" (1/1) ... [2024-11-13 14:24:02,270 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:02" (1/1) ... [2024-11-13 14:24:02,277 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:24:02,282 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:24:02,282 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:24:02,282 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:24:02,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:02" (1/1) ... [2024-11-13 14:24:02,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:24:02,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_134dbf24-90d3-4b0c-acdd-211e6dadf88d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:24:02,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_134dbf24-90d3-4b0c-acdd-211e6dadf88d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:24:02,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_134dbf24-90d3-4b0c-acdd-211e6dadf88d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:24:02,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:24:02,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:24:02,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:24:02,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:24:02,489 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:24:02,491 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:24:03,405 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-11-13 14:24:03,405 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:24:03,417 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:24:03,418 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 14:24:03,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:24:03 BoogieIcfgContainer [2024-11-13 14:24:03,418 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:24:03,421 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:24:03,421 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:24:03,425 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:24:03,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:24:01" (1/3) ... [2024-11-13 14:24:03,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34180d30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:24:03, skipping insertion in model container [2024-11-13 14:24:03,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:02" (2/3) ... [2024-11-13 14:24:03,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34180d30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:24:03, skipping insertion in model container [2024-11-13 14:24:03,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:24:03" (3/3) ... [2024-11-13 14:24:03,427 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-13 14:24:03,442 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:24:03,445 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_opt-floodmax.3.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c that has 1 procedures, 155 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-13 14:24:03,514 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:24:03,529 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;@7733ed55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:24:03,529 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:24:03,534 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 153 states have (on average 1.7450980392156863) internal successors, (267), 154 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:03,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 14:24:03,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:03,543 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] [2024-11-13 14:24:03,543 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:24:03,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:03,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1975649421, now seen corresponding path program 1 times [2024-11-13 14:24:03,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:03,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786304475] [2024-11-13 14:24:03,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:03,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:04,209 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 14:24:04,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:04,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786304475] [2024-11-13 14:24:04,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786304475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:24:04,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:24:04,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:24:04,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679819301] [2024-11-13 14:24:04,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:24:04,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:24:04,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:04,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:24:04,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:24:04,248 INFO L87 Difference]: Start difference. First operand has 155 states, 153 states have (on average 1.7450980392156863) internal successors, (267), 154 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:04,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:04,416 INFO L93 Difference]: Finished difference Result 341 states and 571 transitions. [2024-11-13 14:24:04,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:24:04,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-11-13 14:24:04,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:04,434 INFO L225 Difference]: With dead ends: 341 [2024-11-13 14:24:04,434 INFO L226 Difference]: Without dead ends: 237 [2024-11-13 14:24:04,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:24:04,443 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 157 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:04,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 460 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:24:04,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-13 14:24:04,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 234. [2024-11-13 14:24:04,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.5665236051502145) internal successors, (365), 233 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:04,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 365 transitions. [2024-11-13 14:24:04,484 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 365 transitions. Word has length 62 [2024-11-13 14:24:04,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:04,485 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 365 transitions. [2024-11-13 14:24:04,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:04,485 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 365 transitions. [2024-11-13 14:24:04,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-13 14:24:04,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:04,488 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] [2024-11-13 14:24:04,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:24:04,488 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:24:04,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:04,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1826541876, now seen corresponding path program 1 times [2024-11-13 14:24:04,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:04,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143586139] [2024-11-13 14:24:04,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:04,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:04,727 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 14:24:04,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:04,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143586139] [2024-11-13 14:24:04,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143586139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:24:04,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:24:04,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:24:04,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724521810] [2024-11-13 14:24:04,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:24:04,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:24:04,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:04,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:24:04,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:24:04,731 INFO L87 Difference]: Start difference. First operand 234 states and 365 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:04,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:04,803 INFO L93 Difference]: Finished difference Result 572 states and 917 transitions. [2024-11-13 14:24:04,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:24:04,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-13 14:24:04,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:04,808 INFO L225 Difference]: With dead ends: 572 [2024-11-13 14:24:04,808 INFO L226 Difference]: Without dead ends: 395 [2024-11-13 14:24:04,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:24:04,810 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 133 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:04,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 430 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:24:04,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-13 14:24:04,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 391. [2024-11-13 14:24:04,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 390 states have (on average 1.5897435897435896) internal successors, (620), 390 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:04,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 620 transitions. [2024-11-13 14:24:04,835 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 620 transitions. Word has length 64 [2024-11-13 14:24:04,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:04,836 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 620 transitions. [2024-11-13 14:24:04,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:04,836 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 620 transitions. [2024-11-13 14:24:04,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 14:24:04,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:04,838 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 14:24:04,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:24:04,839 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:24:04,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:04,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1385775307, now seen corresponding path program 1 times [2024-11-13 14:24:04,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:04,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157015124] [2024-11-13 14:24:04,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:04,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:05,076 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 14:24:05,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:05,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157015124] [2024-11-13 14:24:05,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157015124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:24:05,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:24:05,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:24:05,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871339695] [2024-11-13 14:24:05,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:24:05,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:24:05,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:05,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:24:05,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:24:05,081 INFO L87 Difference]: Start difference. First operand 391 states and 620 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:05,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:05,136 INFO L93 Difference]: Finished difference Result 1027 states and 1654 transitions. [2024-11-13 14:24:05,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:24:05,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-13 14:24:05,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:05,142 INFO L225 Difference]: With dead ends: 1027 [2024-11-13 14:24:05,142 INFO L226 Difference]: Without dead ends: 693 [2024-11-13 14:24:05,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:24:05,144 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 127 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:05,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 431 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:24:05,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-13 14:24:05,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 687. [2024-11-13 14:24:05,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 686 states have (on average 1.597667638483965) internal successors, (1096), 686 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:05,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 1096 transitions. [2024-11-13 14:24:05,180 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 1096 transitions. Word has length 66 [2024-11-13 14:24:05,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:05,180 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 1096 transitions. [2024-11-13 14:24:05,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:05,181 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 1096 transitions. [2024-11-13 14:24:05,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 14:24:05,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:05,183 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 14:24:05,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:24:05,184 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:24:05,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:05,184 INFO L85 PathProgramCache]: Analyzing trace with hash -190660810, now seen corresponding path program 1 times [2024-11-13 14:24:05,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:05,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500967640] [2024-11-13 14:24:05,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:05,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:05,466 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 14:24:05,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:05,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500967640] [2024-11-13 14:24:05,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500967640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:24:05,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:24:05,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:24:05,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143319415] [2024-11-13 14:24:05,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:24:05,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:24:05,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:05,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:24:05,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:24:05,468 INFO L87 Difference]: Start difference. First operand 687 states and 1096 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:05,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:05,730 INFO L93 Difference]: Finished difference Result 2979 states and 4854 transitions. [2024-11-13 14:24:05,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:24:05,731 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-13 14:24:05,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:05,741 INFO L225 Difference]: With dead ends: 2979 [2024-11-13 14:24:05,741 INFO L226 Difference]: Without dead ends: 2349 [2024-11-13 14:24:05,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:24:05,744 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 1026 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 1596 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:05,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 1596 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:24:05,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2349 states. [2024-11-13 14:24:05,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2349 to 1239. [2024-11-13 14:24:05,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1239 states, 1238 states have (on average 1.6082390953150243) internal successors, (1991), 1238 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:05,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 1991 transitions. [2024-11-13 14:24:05,807 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 1991 transitions. Word has length 68 [2024-11-13 14:24:05,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:05,807 INFO L471 AbstractCegarLoop]: Abstraction has 1239 states and 1991 transitions. [2024-11-13 14:24:05,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:05,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 1991 transitions. [2024-11-13 14:24:05,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 14:24:05,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:05,810 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] [2024-11-13 14:24:05,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:24:05,811 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:24:05,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:05,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1678021987, now seen corresponding path program 1 times [2024-11-13 14:24:05,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:05,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148547452] [2024-11-13 14:24:05,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:05,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:06,103 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 14:24:06,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:06,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148547452] [2024-11-13 14:24:06,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148547452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:24:06,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:24:06,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:24:06,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33999176] [2024-11-13 14:24:06,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:24:06,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:24:06,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:06,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:24:06,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:24:06,106 INFO L87 Difference]: Start difference. First operand 1239 states and 1991 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:06,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:06,224 INFO L93 Difference]: Finished difference Result 3619 states and 5887 transitions. [2024-11-13 14:24:06,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:24:06,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-13 14:24:06,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:06,234 INFO L225 Difference]: With dead ends: 3619 [2024-11-13 14:24:06,234 INFO L226 Difference]: Without dead ends: 2437 [2024-11-13 14:24:06,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:24:06,237 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 456 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:06,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 690 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:24:06,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2437 states. [2024-11-13 14:24:06,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2437 to 1829. [2024-11-13 14:24:06,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1828 states have (on average 1.6148796498905909) internal successors, (2952), 1828 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:06,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2952 transitions. [2024-11-13 14:24:06,326 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2952 transitions. Word has length 69 [2024-11-13 14:24:06,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:06,326 INFO L471 AbstractCegarLoop]: Abstraction has 1829 states and 2952 transitions. [2024-11-13 14:24:06,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:06,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2952 transitions. [2024-11-13 14:24:06,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-13 14:24:06,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:06,330 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] [2024-11-13 14:24:06,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:24:06,330 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:24:06,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:06,331 INFO L85 PathProgramCache]: Analyzing trace with hash -537020195, now seen corresponding path program 1 times [2024-11-13 14:24:06,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:06,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344339558] [2024-11-13 14:24:06,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:06,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:06,558 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 14:24:06,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:06,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344339558] [2024-11-13 14:24:06,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344339558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:24:06,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:24:06,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:24:06,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224300811] [2024-11-13 14:24:06,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:24:06,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:24:06,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:06,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:24:06,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:24:06,564 INFO L87 Difference]: Start difference. First operand 1829 states and 2952 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:06,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:06,692 INFO L93 Difference]: Finished difference Result 5313 states and 8631 transitions. [2024-11-13 14:24:06,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:24:06,693 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-13 14:24:06,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:06,708 INFO L225 Difference]: With dead ends: 5313 [2024-11-13 14:24:06,708 INFO L226 Difference]: Without dead ends: 3541 [2024-11-13 14:24:06,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:24:06,713 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 456 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:06,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 729 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:24:06,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3541 states. [2024-11-13 14:24:06,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3541 to 2673. [2024-11-13 14:24:06,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2673 states, 2672 states have (on average 1.6137724550898203) internal successors, (4312), 2672 states have internal predecessors, (4312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:06,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2673 states to 2673 states and 4312 transitions. [2024-11-13 14:24:06,871 INFO L78 Accepts]: Start accepts. Automaton has 2673 states and 4312 transitions. Word has length 70 [2024-11-13 14:24:06,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:06,871 INFO L471 AbstractCegarLoop]: Abstraction has 2673 states and 4312 transitions. [2024-11-13 14:24:06,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:06,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2673 states and 4312 transitions. [2024-11-13 14:24:06,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-13 14:24:06,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:06,873 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] [2024-11-13 14:24:06,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:24:06,877 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:24:06,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:06,878 INFO L85 PathProgramCache]: Analyzing trace with hash 478855012, now seen corresponding path program 1 times [2024-11-13 14:24:06,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:06,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849503155] [2024-11-13 14:24:06,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:06,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:07,046 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 14:24:07,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:07,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849503155] [2024-11-13 14:24:07,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849503155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:24:07,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:24:07,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:24:07,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739158576] [2024-11-13 14:24:07,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:24:07,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:24:07,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:07,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:24:07,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:24:07,051 INFO L87 Difference]: Start difference. First operand 2673 states and 4312 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:07,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:07,183 INFO L93 Difference]: Finished difference Result 7713 states and 12507 transitions. [2024-11-13 14:24:07,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:24:07,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-13 14:24:07,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:07,201 INFO L225 Difference]: With dead ends: 7713 [2024-11-13 14:24:07,201 INFO L226 Difference]: Without dead ends: 5097 [2024-11-13 14:24:07,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:24:07,205 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 454 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:07,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 772 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:24:07,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5097 states. [2024-11-13 14:24:07,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5097 to 3869. [2024-11-13 14:24:07,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3869 states, 3868 states have (on average 1.6116856256463288) internal successors, (6234), 3868 states have internal predecessors, (6234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:07,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3869 states to 3869 states and 6234 transitions. [2024-11-13 14:24:07,322 INFO L78 Accepts]: Start accepts. Automaton has 3869 states and 6234 transitions. Word has length 71 [2024-11-13 14:24:07,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:07,322 INFO L471 AbstractCegarLoop]: Abstraction has 3869 states and 6234 transitions. [2024-11-13 14:24:07,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:07,322 INFO L276 IsEmpty]: Start isEmpty. Operand 3869 states and 6234 transitions. [2024-11-13 14:24:07,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-13 14:24:07,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:07,325 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] [2024-11-13 14:24:07,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 14:24:07,326 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:24:07,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:07,326 INFO L85 PathProgramCache]: Analyzing trace with hash -32382329, now seen corresponding path program 1 times [2024-11-13 14:24:07,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:07,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069904299] [2024-11-13 14:24:07,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:07,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:07,432 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 14:24:07,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:07,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069904299] [2024-11-13 14:24:07,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069904299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:24:07,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:24:07,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:24:07,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947514672] [2024-11-13 14:24:07,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:24:07,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:24:07,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:07,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:24:07,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:24:07,433 INFO L87 Difference]: Start difference. First operand 3869 states and 6234 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:07,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:07,502 INFO L93 Difference]: Finished difference Result 8646 states and 14040 transitions. [2024-11-13 14:24:07,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:24:07,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-13 14:24:07,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:07,522 INFO L225 Difference]: With dead ends: 8646 [2024-11-13 14:24:07,523 INFO L226 Difference]: Without dead ends: 5881 [2024-11-13 14:24:07,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:24:07,527 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 138 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:07,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 536 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:24:07,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5881 states. [2024-11-13 14:24:07,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5881 to 5879. [2024-11-13 14:24:07,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5879 states, 5878 states have (on average 1.6124532153793807) internal successors, (9478), 5878 states have internal predecessors, (9478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:07,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5879 states to 5879 states and 9478 transitions. [2024-11-13 14:24:07,665 INFO L78 Accepts]: Start accepts. Automaton has 5879 states and 9478 transitions. Word has length 72 [2024-11-13 14:24:07,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:07,665 INFO L471 AbstractCegarLoop]: Abstraction has 5879 states and 9478 transitions. [2024-11-13 14:24:07,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:07,665 INFO L276 IsEmpty]: Start isEmpty. Operand 5879 states and 9478 transitions. [2024-11-13 14:24:07,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-13 14:24:07,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:07,667 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] [2024-11-13 14:24:07,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 14:24:07,667 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:24:07,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:07,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1419254461, now seen corresponding path program 1 times [2024-11-13 14:24:07,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:07,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464416380] [2024-11-13 14:24:07,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:07,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:07,774 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 14:24:07,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:07,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464416380] [2024-11-13 14:24:07,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464416380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:24:07,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:24:07,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:24:07,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984585458] [2024-11-13 14:24:07,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:24:07,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:24:07,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:07,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:24:07,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:24:07,777 INFO L87 Difference]: Start difference. First operand 5879 states and 9478 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:07,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:07,885 INFO L93 Difference]: Finished difference Result 12993 states and 20995 transitions. [2024-11-13 14:24:07,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:24:07,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-13 14:24:07,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:07,935 INFO L225 Difference]: With dead ends: 12993 [2024-11-13 14:24:07,935 INFO L226 Difference]: Without dead ends: 8823 [2024-11-13 14:24:07,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:24:07,941 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 126 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:07,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 481 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:24:07,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8823 states. [2024-11-13 14:24:08,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8823 to 8821. [2024-11-13 14:24:08,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8821 states, 8820 states have (on average 1.6052154195011339) internal successors, (14158), 8820 states have internal predecessors, (14158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:08,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8821 states to 8821 states and 14158 transitions. [2024-11-13 14:24:08,215 INFO L78 Accepts]: Start accepts. Automaton has 8821 states and 14158 transitions. Word has length 72 [2024-11-13 14:24:08,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:08,215 INFO L471 AbstractCegarLoop]: Abstraction has 8821 states and 14158 transitions. [2024-11-13 14:24:08,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:08,215 INFO L276 IsEmpty]: Start isEmpty. Operand 8821 states and 14158 transitions. [2024-11-13 14:24:08,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-13 14:24:08,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:08,216 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] [2024-11-13 14:24:08,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 14:24:08,217 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:24:08,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:08,217 INFO L85 PathProgramCache]: Analyzing trace with hash 569279253, now seen corresponding path program 1 times [2024-11-13 14:24:08,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:08,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851217215] [2024-11-13 14:24:08,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:08,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:08,320 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 14:24:08,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:08,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851217215] [2024-11-13 14:24:08,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851217215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:24:08,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:24:08,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:24:08,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043430372] [2024-11-13 14:24:08,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:24:08,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:24:08,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:08,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:24:08,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:24:08,322 INFO L87 Difference]: Start difference. First operand 8821 states and 14158 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:08,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:08,449 INFO L93 Difference]: Finished difference Result 19170 states and 30844 transitions. [2024-11-13 14:24:08,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:24:08,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-13 14:24:08,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:08,480 INFO L225 Difference]: With dead ends: 19170 [2024-11-13 14:24:08,480 INFO L226 Difference]: Without dead ends: 12906 [2024-11-13 14:24:08,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:24:08,489 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 132 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:08,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 521 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:24:08,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12906 states. [2024-11-13 14:24:08,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12906 to 12904. [2024-11-13 14:24:08,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12904 states, 12903 states have (on average 1.5969154460203054) internal successors, (20605), 12903 states have internal predecessors, (20605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:08,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12904 states to 12904 states and 20605 transitions. [2024-11-13 14:24:08,774 INFO L78 Accepts]: Start accepts. Automaton has 12904 states and 20605 transitions. Word has length 72 [2024-11-13 14:24:08,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:08,774 INFO L471 AbstractCegarLoop]: Abstraction has 12904 states and 20605 transitions. [2024-11-13 14:24:08,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:08,775 INFO L276 IsEmpty]: Start isEmpty. Operand 12904 states and 20605 transitions. [2024-11-13 14:24:08,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-13 14:24:08,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:08,776 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] [2024-11-13 14:24:08,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 14:24:08,777 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:24:08,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:08,779 INFO L85 PathProgramCache]: Analyzing trace with hash -899144939, now seen corresponding path program 1 times [2024-11-13 14:24:08,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:08,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259155325] [2024-11-13 14:24:08,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:08,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:08,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:09,081 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 14:24:09,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:09,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259155325] [2024-11-13 14:24:09,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259155325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:24:09,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:24:09,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:24:09,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976945603] [2024-11-13 14:24:09,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:24:09,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:24:09,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:09,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:24:09,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:24:09,083 INFO L87 Difference]: Start difference. First operand 12904 states and 20605 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:09,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:09,291 INFO L93 Difference]: Finished difference Result 25719 states and 41086 transitions. [2024-11-13 14:24:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:24:09,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-13 14:24:09,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:09,323 INFO L225 Difference]: With dead ends: 25719 [2024-11-13 14:24:09,323 INFO L226 Difference]: Without dead ends: 12906 [2024-11-13 14:24:09,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:24:09,337 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 257 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:09,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 634 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:24:09,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12906 states. [2024-11-13 14:24:09,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12906 to 12904. [2024-11-13 14:24:09,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12904 states, 12903 states have (on average 1.5872277764860885) internal successors, (20480), 12903 states have internal predecessors, (20480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:09,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12904 states to 12904 states and 20480 transitions. [2024-11-13 14:24:09,597 INFO L78 Accepts]: Start accepts. Automaton has 12904 states and 20480 transitions. Word has length 73 [2024-11-13 14:24:09,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:09,598 INFO L471 AbstractCegarLoop]: Abstraction has 12904 states and 20480 transitions. [2024-11-13 14:24:09,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:09,598 INFO L276 IsEmpty]: Start isEmpty. Operand 12904 states and 20480 transitions. [2024-11-13 14:24:09,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-13 14:24:09,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:09,599 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] [2024-11-13 14:24:09,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 14:24:09,600 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:24:09,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:09,600 INFO L85 PathProgramCache]: Analyzing trace with hash -764385937, now seen corresponding path program 1 times [2024-11-13 14:24:09,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:09,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963643825] [2024-11-13 14:24:09,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:09,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:09,995 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 14:24:09,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:09,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963643825] [2024-11-13 14:24:09,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963643825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:24:09,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:24:09,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:24:09,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000145211] [2024-11-13 14:24:09,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:24:09,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:24:09,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:09,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:24:09,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:24:09,998 INFO L87 Difference]: Start difference. First operand 12904 states and 20480 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:10,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:10,250 INFO L93 Difference]: Finished difference Result 36939 states and 58780 transitions. [2024-11-13 14:24:10,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:24:10,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-13 14:24:10,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:10,312 INFO L225 Difference]: With dead ends: 36939 [2024-11-13 14:24:10,312 INFO L226 Difference]: Without dead ends: 24126 [2024-11-13 14:24:10,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:24:10,330 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 379 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:10,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 642 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:24:10,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24126 states. [2024-11-13 14:24:10,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24126 to 24124. [2024-11-13 14:24:10,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24124 states, 24123 states have (on average 1.576711022675455) internal successors, (38035), 24123 states have internal predecessors, (38035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:10,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24124 states to 24124 states and 38035 transitions. [2024-11-13 14:24:10,782 INFO L78 Accepts]: Start accepts. Automaton has 24124 states and 38035 transitions. Word has length 76 [2024-11-13 14:24:10,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:10,783 INFO L471 AbstractCegarLoop]: Abstraction has 24124 states and 38035 transitions. [2024-11-13 14:24:10,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:10,783 INFO L276 IsEmpty]: Start isEmpty. Operand 24124 states and 38035 transitions. [2024-11-13 14:24:10,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-13 14:24:10,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:10,784 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] [2024-11-13 14:24:10,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 14:24:10,784 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:24:10,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:10,785 INFO L85 PathProgramCache]: Analyzing trace with hash 2071930450, now seen corresponding path program 1 times [2024-11-13 14:24:10,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:10,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637705485] [2024-11-13 14:24:10,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:10,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:11,320 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 14:24:11,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:11,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637705485] [2024-11-13 14:24:11,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637705485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:24:11,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:24:11,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:24:11,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970288041] [2024-11-13 14:24:11,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:24:11,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:24:11,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:11,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:24:11,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:24:11,322 INFO L87 Difference]: Start difference. First operand 24124 states and 38035 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:11,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:11,431 INFO L93 Difference]: Finished difference Result 24850 states and 39122 transitions. [2024-11-13 14:24:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:24:11,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-13 14:24:11,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:11,487 INFO L225 Difference]: With dead ends: 24850 [2024-11-13 14:24:11,487 INFO L226 Difference]: Without dead ends: 24848 [2024-11-13 14:24:11,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:24:11,495 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 0 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:11,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 904 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:24:11,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24848 states. [2024-11-13 14:24:11,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24848 to 24848. [2024-11-13 14:24:11,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24848 states, 24847 states have (on average 1.5595444118002173) internal successors, (38750), 24847 states have internal predecessors, (38750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:11,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24848 states to 24848 states and 38750 transitions. [2024-11-13 14:24:11,816 INFO L78 Accepts]: Start accepts. Automaton has 24848 states and 38750 transitions. Word has length 77 [2024-11-13 14:24:11,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:11,816 INFO L471 AbstractCegarLoop]: Abstraction has 24848 states and 38750 transitions. [2024-11-13 14:24:11,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:11,816 INFO L276 IsEmpty]: Start isEmpty. Operand 24848 states and 38750 transitions. [2024-11-13 14:24:11,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 14:24:11,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:11,885 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:24:11,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 14:24:11,885 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:24:11,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:11,886 INFO L85 PathProgramCache]: Analyzing trace with hash -2134670669, now seen corresponding path program 1 times [2024-11-13 14:24:11,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:11,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995923057] [2024-11-13 14:24:11,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:11,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:11,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:12,017 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 14:24:12,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:12,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995923057] [2024-11-13 14:24:12,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995923057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:24:12,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:24:12,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:24:12,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105207806] [2024-11-13 14:24:12,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:24:12,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:24:12,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:12,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:24:12,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:24:12,019 INFO L87 Difference]: Start difference. First operand 24848 states and 38750 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:12,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:12,214 INFO L93 Difference]: Finished difference Result 57401 states and 89979 transitions. [2024-11-13 14:24:12,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:24:12,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-13 14:24:12,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:12,321 INFO L225 Difference]: With dead ends: 57401 [2024-11-13 14:24:12,321 INFO L226 Difference]: Without dead ends: 45439 [2024-11-13 14:24:12,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:24:12,340 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 117 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:12,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 425 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:24:12,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45439 states. [2024-11-13 14:24:12,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45439 to 45387. [2024-11-13 14:24:12,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45387 states, 45386 states have (on average 1.5631912924690434) internal successors, (70947), 45386 states have internal predecessors, (70947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:12,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45387 states to 45387 states and 70947 transitions. [2024-11-13 14:24:12,986 INFO L78 Accepts]: Start accepts. Automaton has 45387 states and 70947 transitions. Word has length 103 [2024-11-13 14:24:12,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:12,986 INFO L471 AbstractCegarLoop]: Abstraction has 45387 states and 70947 transitions. [2024-11-13 14:24:12,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:12,987 INFO L276 IsEmpty]: Start isEmpty. Operand 45387 states and 70947 transitions. [2024-11-13 14:24:12,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 14:24:12,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:12,989 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:24:12,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 14:24:12,989 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:24:12,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:12,990 INFO L85 PathProgramCache]: Analyzing trace with hash 773424495, now seen corresponding path program 1 times [2024-11-13 14:24:12,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:12,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300066645] [2024-11-13 14:24:12,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:12,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:13,196 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 14:24:13,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:13,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300066645] [2024-11-13 14:24:13,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300066645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:24:13,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:24:13,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:24:13,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613659730] [2024-11-13 14:24:13,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:24:13,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:24:13,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:13,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:24:13,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:24:13,198 INFO L87 Difference]: Start difference. First operand 45387 states and 70947 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:13,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:13,962 INFO L93 Difference]: Finished difference Result 111556 states and 174816 transitions. [2024-11-13 14:24:13,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:24:13,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-13 14:24:13,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:14,204 INFO L225 Difference]: With dead ends: 111556 [2024-11-13 14:24:14,204 INFO L226 Difference]: Without dead ends: 90380 [2024-11-13 14:24:14,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:24:14,229 INFO L432 NwaCegarLoop]: 379 mSDtfsCounter, 584 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:14,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 1068 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:24:14,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90380 states. [2024-11-13 14:24:15,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90380 to 70258. [2024-11-13 14:24:15,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70258 states, 70257 states have (on average 1.5612963832785345) internal successors, (109692), 70257 states have internal predecessors, (109692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:15,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70258 states to 70258 states and 109692 transitions. [2024-11-13 14:24:15,448 INFO L78 Accepts]: Start accepts. Automaton has 70258 states and 109692 transitions. Word has length 103 [2024-11-13 14:24:15,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:15,450 INFO L471 AbstractCegarLoop]: Abstraction has 70258 states and 109692 transitions. [2024-11-13 14:24:15,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:15,450 INFO L276 IsEmpty]: Start isEmpty. Operand 70258 states and 109692 transitions. [2024-11-13 14:24:15,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 14:24:15,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:15,453 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:24:15,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 14:24:15,453 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:24:15,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:15,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1533009087, now seen corresponding path program 1 times [2024-11-13 14:24:15,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:15,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656647533] [2024-11-13 14:24:15,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:15,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:15,699 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 14:24:15,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:15,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656647533] [2024-11-13 14:24:15,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656647533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:24:15,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:24:15,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:24:15,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073365535] [2024-11-13 14:24:15,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:24:15,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:24:15,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:15,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:24:15,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:24:15,701 INFO L87 Difference]: Start difference. First operand 70258 states and 109692 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:16,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:16,600 INFO L93 Difference]: Finished difference Result 119968 states and 188028 transitions. [2024-11-13 14:24:16,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:24:16,601 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-13 14:24:16,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:16,743 INFO L225 Difference]: With dead ends: 119968 [2024-11-13 14:24:16,744 INFO L226 Difference]: Without dead ends: 98792 [2024-11-13 14:24:16,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:24:16,762 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 581 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:16,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 1142 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:24:16,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98792 states. [2024-11-13 14:24:18,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98792 to 95018. [2024-11-13 14:24:18,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95018 states, 95017 states have (on average 1.5619941694644117) internal successors, (148416), 95017 states have internal predecessors, (148416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:18,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95018 states to 95018 states and 148416 transitions. [2024-11-13 14:24:18,288 INFO L78 Accepts]: Start accepts. Automaton has 95018 states and 148416 transitions. Word has length 103 [2024-11-13 14:24:18,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:18,289 INFO L471 AbstractCegarLoop]: Abstraction has 95018 states and 148416 transitions. [2024-11-13 14:24:18,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:18,289 INFO L276 IsEmpty]: Start isEmpty. Operand 95018 states and 148416 transitions. [2024-11-13 14:24:18,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 14:24:18,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:18,291 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:24:18,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 14:24:18,291 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:24:18,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:18,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1214837364, now seen corresponding path program 1 times [2024-11-13 14:24:18,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:18,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310334927] [2024-11-13 14:24:18,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:18,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:18,391 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:24:18,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:18,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310334927] [2024-11-13 14:24:18,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310334927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:24:18,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:24:18,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:24:18,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101637351] [2024-11-13 14:24:18,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:24:18,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:24:18,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:18,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:24:18,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:24:18,392 INFO L87 Difference]: Start difference. First operand 95018 states and 148416 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:19,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:19,541 INFO L93 Difference]: Finished difference Result 279636 states and 436305 transitions. [2024-11-13 14:24:19,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:24:19,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-13 14:24:19,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:19,853 INFO L225 Difference]: With dead ends: 279636 [2024-11-13 14:24:19,858 INFO L226 Difference]: Without dead ends: 184709 [2024-11-13 14:24:19,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:24:19,967 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 178 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:19,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 561 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:24:20,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184709 states. [2024-11-13 14:24:22,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184709 to 184707. [2024-11-13 14:24:22,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184707 states, 184706 states have (on average 1.5503719424382532) internal successors, (286363), 184706 states have internal predecessors, (286363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:22,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184707 states to 184707 states and 286363 transitions. [2024-11-13 14:24:22,731 INFO L78 Accepts]: Start accepts. Automaton has 184707 states and 286363 transitions. Word has length 104 [2024-11-13 14:24:22,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:22,731 INFO L471 AbstractCegarLoop]: Abstraction has 184707 states and 286363 transitions. [2024-11-13 14:24:22,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:22,731 INFO L276 IsEmpty]: Start isEmpty. Operand 184707 states and 286363 transitions. [2024-11-13 14:24:22,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 14:24:22,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:22,734 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:24:22,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 14:24:22,735 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:24:22,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:22,735 INFO L85 PathProgramCache]: Analyzing trace with hash -35525664, now seen corresponding path program 1 times [2024-11-13 14:24:22,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:22,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154742896] [2024-11-13 14:24:22,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:22,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:23,420 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 14:24:23,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:23,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154742896] [2024-11-13 14:24:23,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154742896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:24:23,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:24:23,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:24:23,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966250533] [2024-11-13 14:24:23,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:24:23,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:24:23,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:23,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:24:23,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:24:23,422 INFO L87 Difference]: Start difference. First operand 184707 states and 286363 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:24,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:24,332 INFO L93 Difference]: Finished difference Result 298883 states and 464862 transitions. [2024-11-13 14:24:24,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:24:24,336 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-13 14:24:24,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:24,648 INFO L225 Difference]: With dead ends: 298883 [2024-11-13 14:24:24,649 INFO L226 Difference]: Without dead ends: 192475 [2024-11-13 14:24:24,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:24:24,736 INFO L432 NwaCegarLoop]: 379 mSDtfsCounter, 259 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:24,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 743 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:24:24,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192475 states. [2024-11-13 14:24:27,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192475 to 129249. [2024-11-13 14:24:27,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129249 states, 129248 states have (on average 1.545842102005447) internal successors, (199797), 129248 states have internal predecessors, (199797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:27,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129249 states to 129249 states and 199797 transitions. [2024-11-13 14:24:27,897 INFO L78 Accepts]: Start accepts. Automaton has 129249 states and 199797 transitions. Word has length 104 [2024-11-13 14:24:27,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:27,897 INFO L471 AbstractCegarLoop]: Abstraction has 129249 states and 199797 transitions. [2024-11-13 14:24:27,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:27,897 INFO L276 IsEmpty]: Start isEmpty. Operand 129249 states and 199797 transitions. [2024-11-13 14:24:27,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 14:24:27,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:27,900 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:24:27,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 14:24:27,900 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:24:27,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:27,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1082631746, now seen corresponding path program 1 times [2024-11-13 14:24:27,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:27,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489277958] [2024-11-13 14:24:27,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:27,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:27,998 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:24:27,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:27,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489277958] [2024-11-13 14:24:27,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489277958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:24:27,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:24:27,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:24:27,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730421697] [2024-11-13 14:24:27,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:24:27,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:24:27,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:27,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:24:28,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:24:28,000 INFO L87 Difference]: Start difference. First operand 129249 states and 199797 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:29,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:29,004 INFO L93 Difference]: Finished difference Result 380143 states and 586867 transitions. [2024-11-13 14:24:29,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:24:29,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-13 14:24:29,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:29,341 INFO L225 Difference]: With dead ends: 380143 [2024-11-13 14:24:29,341 INFO L226 Difference]: Without dead ends: 251035 [2024-11-13 14:24:29,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:24:29,429 INFO L432 NwaCegarLoop]: 300 mSDtfsCounter, 159 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:29,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 525 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:24:30,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251035 states. [2024-11-13 14:24:32,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251035 to 251033. [2024-11-13 14:24:32,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251033 states, 251032 states have (on average 1.5335933267471875) internal successors, (384981), 251032 states have internal predecessors, (384981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:33,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251033 states to 251033 states and 384981 transitions. [2024-11-13 14:24:33,897 INFO L78 Accepts]: Start accepts. Automaton has 251033 states and 384981 transitions. Word has length 104 [2024-11-13 14:24:33,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:33,897 INFO L471 AbstractCegarLoop]: Abstraction has 251033 states and 384981 transitions. [2024-11-13 14:24:33,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:33,897 INFO L276 IsEmpty]: Start isEmpty. Operand 251033 states and 384981 transitions. [2024-11-13 14:24:33,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 14:24:33,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:33,901 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:24:33,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 14:24:33,902 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:24:33,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:33,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1511681196, now seen corresponding path program 1 times [2024-11-13 14:24:33,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:33,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117191197] [2024-11-13 14:24:33,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:33,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:34,058 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 14:24:34,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:34,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117191197] [2024-11-13 14:24:34,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117191197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:24:34,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:24:34,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:24:34,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547034343] [2024-11-13 14:24:34,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:24:34,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:24:34,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:34,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:24:34,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:24:34,059 INFO L87 Difference]: Start difference. First operand 251033 states and 384981 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:36,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:36,497 INFO L93 Difference]: Finished difference Result 611583 states and 941677 transitions. [2024-11-13 14:24:36,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:24:36,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-13 14:24:36,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:24:36,920 INFO L225 Difference]: With dead ends: 611583 [2024-11-13 14:24:36,920 INFO L226 Difference]: Without dead ends: 360825 [2024-11-13 14:24:36,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:24:36,989 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 140 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:24:36,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 447 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:24:37,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360825 states. [2024-11-13 14:24:40,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360825 to 347467. [2024-11-13 14:24:41,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347467 states, 347466 states have (on average 1.5261493210846528) internal successors, (530285), 347466 states have internal predecessors, (530285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:42,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347467 states to 347467 states and 530285 transitions. [2024-11-13 14:24:42,350 INFO L78 Accepts]: Start accepts. Automaton has 347467 states and 530285 transitions. Word has length 105 [2024-11-13 14:24:42,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:24:42,350 INFO L471 AbstractCegarLoop]: Abstraction has 347467 states and 530285 transitions. [2024-11-13 14:24:42,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:42,350 INFO L276 IsEmpty]: Start isEmpty. Operand 347467 states and 530285 transitions. [2024-11-13 14:24:42,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 14:24:42,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:24:42,354 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:24:42,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 14:24:42,354 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:24:42,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:42,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1024324050, now seen corresponding path program 1 times [2024-11-13 14:24:42,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:42,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234933865] [2024-11-13 14:24:42,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:42,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:42,430 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 14:24:42,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:24:42,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234933865] [2024-11-13 14:24:42,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234933865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:24:42,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:24:42,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:24:42,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420442924] [2024-11-13 14:24:42,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:24:42,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:24:42,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:24:42,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:24:42,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:24:42,433 INFO L87 Difference]: Start difference. First operand 347467 states and 530285 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:24:45,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:24:45,217 INFO L93 Difference]: Finished difference Result 846787 states and 1297687 transitions. [2024-11-13 14:24:45,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:24:45,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-13 14:24:45,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted.