./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c.v+nlh-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_926f3a44-4d8e-4e05-a62b-a8f6b4835779/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f3a44-4d8e-4e05-a62b-a8f6b4835779/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_926f3a44-4d8e-4e05-a62b-a8f6b4835779/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f3a44-4d8e-4e05-a62b-a8f6b4835779/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f3a44-4d8e-4e05-a62b-a8f6b4835779/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_926f3a44-4d8e-4e05-a62b-a8f6b4835779/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 d88022892faa8e5323e127ecf7d946bb4c2009d3a662bbf4d5eed2e18ed61b2a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:48:12,615 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:48:12,728 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f3a44-4d8e-4e05-a62b-a8f6b4835779/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 13:48:12,737 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:48:12,737 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:48:12,785 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:48:12,786 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:48:12,786 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:48:12,787 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:48:12,787 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:48:12,788 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:48:12,789 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:48:12,790 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:48:12,790 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:48:12,790 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:48:12,790 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:48:12,790 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:48:12,790 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:48:12,790 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:48:12,791 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:48:12,791 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:48:12,791 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:48:12,791 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:48:12,791 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:48:12,791 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:48:12,791 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:48:12,791 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:48:12,791 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:48:12,791 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:48:12,792 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:48:12,793 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:48:12,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:48:12,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:48:12,793 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:48:12,794 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:48:12,794 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:48:12,795 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:48:12,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:48:12,795 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:48:12,795 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:48:12,795 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:48:12,795 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:48:12,795 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_926f3a44-4d8e-4e05-a62b-a8f6b4835779/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 -> d88022892faa8e5323e127ecf7d946bb4c2009d3a662bbf4d5eed2e18ed61b2a [2024-11-13 13:48:13,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:48:13,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:48:13,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:48:13,167 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:48:13,167 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:48:13,169 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f3a44-4d8e-4e05-a62b-a8f6b4835779/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c Unable to find full path for "g++" [2024-11-13 13:48:15,467 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:48:16,015 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:48:16,016 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f3a44-4d8e-4e05-a62b-a8f6b4835779/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-11-13 13:48:16,047 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f3a44-4d8e-4e05-a62b-a8f6b4835779/bin/uautomizer-verify-qhAvR1uOyd/data/84abcee79/6a19ea1bdca1406aaf306ed74be15b7a/FLAG5a21e58da [2024-11-13 13:48:16,076 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f3a44-4d8e-4e05-a62b-a8f6b4835779/bin/uautomizer-verify-qhAvR1uOyd/data/84abcee79/6a19ea1bdca1406aaf306ed74be15b7a [2024-11-13 13:48:16,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:48:16,081 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:48:16,083 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:48:16,083 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:48:16,089 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:48:16,090 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:48:16" (1/1) ... [2024-11-13 13:48:16,093 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@273b4d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:16, skipping insertion in model container [2024-11-13 13:48:16,093 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:48:16" (1/1) ... [2024-11-13 13:48:16,212 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:48:17,004 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_926f3a44-4d8e-4e05-a62b-a8f6b4835779/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[24514,24527] [2024-11-13 13:48:17,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:48:17,192 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:48:17,420 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_926f3a44-4d8e-4e05-a62b-a8f6b4835779/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[24514,24527] [2024-11-13 13:48:17,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:48:17,591 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:48:17,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:17 WrapperNode [2024-11-13 13:48:17,592 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:48:17,593 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:48:17,594 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:48:17,594 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:48:17,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:17" (1/1) ... [2024-11-13 13:48:17,634 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:17" (1/1) ... [2024-11-13 13:48:17,756 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2315 [2024-11-13 13:48:17,756 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:48:17,757 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:48:17,757 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:48:17,757 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:48:17,771 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:17" (1/1) ... [2024-11-13 13:48:17,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:17" (1/1) ... [2024-11-13 13:48:17,786 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:17" (1/1) ... [2024-11-13 13:48:17,860 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 13:48:17,860 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:17" (1/1) ... [2024-11-13 13:48:17,860 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:17" (1/1) ... [2024-11-13 13:48:17,909 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:17" (1/1) ... [2024-11-13 13:48:17,944 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:17" (1/1) ... [2024-11-13 13:48:17,959 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:17" (1/1) ... [2024-11-13 13:48:17,968 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:17" (1/1) ... [2024-11-13 13:48:17,986 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:48:17,987 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:48:17,988 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:48:17,988 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:48:17,989 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:17" (1/1) ... [2024-11-13 13:48:18,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:48:18,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f3a44-4d8e-4e05-a62b-a8f6b4835779/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:18,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f3a44-4d8e-4e05-a62b-a8f6b4835779/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:48:18,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f3a44-4d8e-4e05-a62b-a8f6b4835779/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:48:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:48:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:48:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:48:18,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:48:18,330 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:48:18,332 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:48:21,570 INFO L? ?]: Removed 168 outVars from TransFormulas that were not future-live. [2024-11-13 13:48:21,571 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:48:21,619 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:48:21,623 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 13:48:21,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:48:21 BoogieIcfgContainer [2024-11-13 13:48:21,623 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:48:21,627 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:48:21,631 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:48:21,637 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:48:21,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:48:16" (1/3) ... [2024-11-13 13:48:21,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5deb17b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:48:21, skipping insertion in model container [2024-11-13 13:48:21,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:17" (2/3) ... [2024-11-13 13:48:21,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5deb17b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:48:21, skipping insertion in model container [2024-11-13 13:48:21,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:48:21" (3/3) ... [2024-11-13 13:48:21,643 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-11-13 13:48:21,663 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:48:21,666 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_floodmax.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c that has 1 procedures, 581 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-13 13:48:21,775 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:48:21,793 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;@5da9c81e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:48:21,793 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:48:21,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 581 states, 579 states have (on average 1.7910189982728844) internal successors, (1037), 580 states have internal predecessors, (1037), 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 13:48:21,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-13 13:48:21,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:21,829 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:21,829 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:48:21,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:21,834 INFO L85 PathProgramCache]: Analyzing trace with hash 912319734, now seen corresponding path program 1 times [2024-11-13 13:48:21,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:48:21,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913486603] [2024-11-13 13:48:21,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:21,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:48:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:23,116 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 13:48:23,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:48:23,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913486603] [2024-11-13 13:48:23,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913486603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:23,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:23,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:48:23,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982501601] [2024-11-13 13:48:23,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:23,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:48:23,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:48:23,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:48:23,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:48:23,160 INFO L87 Difference]: Start difference. First operand has 581 states, 579 states have (on average 1.7910189982728844) internal successors, (1037), 580 states have internal predecessors, (1037), 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 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 13:48:23,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:23,521 INFO L93 Difference]: Finished difference Result 1051 states and 1863 transitions. [2024-11-13 13:48:23,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:48:23,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 234 [2024-11-13 13:48:23,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:23,554 INFO L225 Difference]: With dead ends: 1051 [2024-11-13 13:48:23,554 INFO L226 Difference]: Without dead ends: 878 [2024-11-13 13:48:23,559 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 13:48:23,564 INFO L432 NwaCegarLoop]: 991 mSDtfsCounter, 576 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:23,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 1795 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:48:23,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2024-11-13 13:48:23,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 876. [2024-11-13 13:48:23,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 875 states have (on average 1.576) internal successors, (1379), 875 states have internal predecessors, (1379), 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 13:48:23,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1379 transitions. [2024-11-13 13:48:23,656 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1379 transitions. Word has length 234 [2024-11-13 13:48:23,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:23,657 INFO L471 AbstractCegarLoop]: Abstraction has 876 states and 1379 transitions. [2024-11-13 13:48:23,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 13:48:23,658 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1379 transitions. [2024-11-13 13:48:23,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-13 13:48:23,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:23,664 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:23,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:48:23,665 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:48:23,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:23,665 INFO L85 PathProgramCache]: Analyzing trace with hash -70671080, now seen corresponding path program 1 times [2024-11-13 13:48:23,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:48:23,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749156925] [2024-11-13 13:48:23,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:23,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:48:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:25,647 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 13:48:25,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:48:25,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749156925] [2024-11-13 13:48:25,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749156925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:25,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:25,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:48:25,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154380348] [2024-11-13 13:48:25,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:25,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:48:25,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:48:25,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:48:25,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:48:25,657 INFO L87 Difference]: Start difference. First operand 876 states and 1379 transitions. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 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 13:48:26,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:26,091 INFO L93 Difference]: Finished difference Result 4270 states and 6708 transitions. [2024-11-13 13:48:26,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:48:26,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 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 234 [2024-11-13 13:48:26,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:26,116 INFO L225 Difference]: With dead ends: 4270 [2024-11-13 13:48:26,116 INFO L226 Difference]: Without dead ends: 3405 [2024-11-13 13:48:26,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:48:26,125 INFO L432 NwaCegarLoop]: 1444 mSDtfsCounter, 2743 mSDsluCounter, 2275 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2743 SdHoareTripleChecker+Valid, 3719 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:26,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2743 Valid, 3719 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:48:26,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3405 states. [2024-11-13 13:48:26,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3405 to 1715. [2024-11-13 13:48:26,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1714 states have (on average 1.5647607934655776) internal successors, (2682), 1714 states have internal predecessors, (2682), 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 13:48:26,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2682 transitions. [2024-11-13 13:48:26,251 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2682 transitions. Word has length 234 [2024-11-13 13:48:26,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:26,252 INFO L471 AbstractCegarLoop]: Abstraction has 1715 states and 2682 transitions. [2024-11-13 13:48:26,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 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 13:48:26,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2682 transitions. [2024-11-13 13:48:26,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-13 13:48:26,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:26,264 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:26,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:48:26,264 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:48:26,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:26,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1281083139, now seen corresponding path program 1 times [2024-11-13 13:48:26,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:48:26,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062650905] [2024-11-13 13:48:26,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:26,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:48:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:26,688 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 13:48:26,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:48:26,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062650905] [2024-11-13 13:48:26,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062650905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:26,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:26,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:48:26,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751834500] [2024-11-13 13:48:26,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:26,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:48:26,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:48:26,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:48:26,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:48:26,695 INFO L87 Difference]: Start difference. First operand 1715 states and 2682 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 13:48:26,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:26,846 INFO L93 Difference]: Finished difference Result 4958 states and 7722 transitions. [2024-11-13 13:48:26,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:48:26,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 236 [2024-11-13 13:48:26,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:26,861 INFO L225 Difference]: With dead ends: 4958 [2024-11-13 13:48:26,862 INFO L226 Difference]: Without dead ends: 3368 [2024-11-13 13:48:26,867 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 13:48:26,868 INFO L432 NwaCegarLoop]: 1702 mSDtfsCounter, 774 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 2565 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:26,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 2565 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:48:26,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3368 states. [2024-11-13 13:48:26,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3368 to 3366. [2024-11-13 13:48:26,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3366 states, 3365 states have (on average 1.5557206537890045) internal successors, (5235), 3365 states have internal predecessors, (5235), 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 13:48:26,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3366 states to 3366 states and 5235 transitions. [2024-11-13 13:48:26,991 INFO L78 Accepts]: Start accepts. Automaton has 3366 states and 5235 transitions. Word has length 236 [2024-11-13 13:48:26,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:26,992 INFO L471 AbstractCegarLoop]: Abstraction has 3366 states and 5235 transitions. [2024-11-13 13:48:26,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 13:48:26,993 INFO L276 IsEmpty]: Start isEmpty. Operand 3366 states and 5235 transitions. [2024-11-13 13:48:27,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-13 13:48:27,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:27,003 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:27,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:48:27,004 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:48:27,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:27,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1522783160, now seen corresponding path program 1 times [2024-11-13 13:48:27,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:48:27,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760144001] [2024-11-13 13:48:27,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:27,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:48:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:27,257 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 13:48:27,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:48:27,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760144001] [2024-11-13 13:48:27,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760144001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:27,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:27,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:48:27,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310179809] [2024-11-13 13:48:27,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:27,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:48:27,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:48:27,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:48:27,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:48:27,261 INFO L87 Difference]: Start difference. First operand 3366 states and 5235 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 13:48:27,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:27,476 INFO L93 Difference]: Finished difference Result 10031 states and 15589 transitions. [2024-11-13 13:48:27,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:48:27,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 236 [2024-11-13 13:48:27,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:27,504 INFO L225 Difference]: With dead ends: 10031 [2024-11-13 13:48:27,504 INFO L226 Difference]: Without dead ends: 6703 [2024-11-13 13:48:27,509 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 13:48:27,510 INFO L432 NwaCegarLoop]: 1792 mSDtfsCounter, 893 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 2686 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:27,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 2686 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:48:27,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6703 states. [2024-11-13 13:48:27,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6703 to 3385. [2024-11-13 13:48:27,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3385 states, 3384 states have (on average 1.5552600472813238) internal successors, (5263), 3384 states have internal predecessors, (5263), 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 13:48:27,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3385 states to 3385 states and 5263 transitions. [2024-11-13 13:48:27,689 INFO L78 Accepts]: Start accepts. Automaton has 3385 states and 5263 transitions. Word has length 236 [2024-11-13 13:48:27,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:27,689 INFO L471 AbstractCegarLoop]: Abstraction has 3385 states and 5263 transitions. [2024-11-13 13:48:27,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 13:48:27,690 INFO L276 IsEmpty]: Start isEmpty. Operand 3385 states and 5263 transitions. [2024-11-13 13:48:27,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-13 13:48:27,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:27,698 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:27,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:48:27,699 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:48:27,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:27,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1023572120, now seen corresponding path program 1 times [2024-11-13 13:48:27,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:48:27,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338754849] [2024-11-13 13:48:27,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:27,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:48:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:27,970 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 13:48:27,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:48:27,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338754849] [2024-11-13 13:48:27,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338754849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:27,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:27,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:48:27,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059797795] [2024-11-13 13:48:27,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:27,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:48:27,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:48:27,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:48:27,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:48:27,975 INFO L87 Difference]: Start difference. First operand 3385 states and 5263 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 13:48:28,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:28,079 INFO L93 Difference]: Finished difference Result 6732 states and 10459 transitions. [2024-11-13 13:48:28,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:48:28,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 237 [2024-11-13 13:48:28,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:28,097 INFO L225 Difference]: With dead ends: 6732 [2024-11-13 13:48:28,097 INFO L226 Difference]: Without dead ends: 3403 [2024-11-13 13:48:28,102 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 13:48:28,103 INFO L432 NwaCegarLoop]: 917 mSDtfsCounter, 5 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1819 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:28,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1819 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:48:28,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3403 states. [2024-11-13 13:48:28,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3403 to 3403. [2024-11-13 13:48:28,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3403 states, 3402 states have (on average 1.5532039976484422) internal successors, (5284), 3402 states have internal predecessors, (5284), 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 13:48:28,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3403 states to 3403 states and 5284 transitions. [2024-11-13 13:48:28,240 INFO L78 Accepts]: Start accepts. Automaton has 3403 states and 5284 transitions. Word has length 237 [2024-11-13 13:48:28,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:28,240 INFO L471 AbstractCegarLoop]: Abstraction has 3403 states and 5284 transitions. [2024-11-13 13:48:28,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 13:48:28,241 INFO L276 IsEmpty]: Start isEmpty. Operand 3403 states and 5284 transitions. [2024-11-13 13:48:28,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-13 13:48:28,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:28,249 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:28,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:48:28,249 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:48:28,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:28,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1450350274, now seen corresponding path program 1 times [2024-11-13 13:48:28,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:48:28,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338907689] [2024-11-13 13:48:28,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:28,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:48:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:28,611 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 13:48:28,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:48:28,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338907689] [2024-11-13 13:48:28,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338907689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:28,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:28,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:48:28,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829634465] [2024-11-13 13:48:28,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:28,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:48:28,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:48:28,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:48:28,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:48:28,615 INFO L87 Difference]: Start difference. First operand 3403 states and 5284 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 13:48:28,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:28,797 INFO L93 Difference]: Finished difference Result 9750 states and 15077 transitions. [2024-11-13 13:48:28,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:48:28,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 238 [2024-11-13 13:48:28,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:28,835 INFO L225 Difference]: With dead ends: 9750 [2024-11-13 13:48:28,839 INFO L226 Difference]: Without dead ends: 6588 [2024-11-13 13:48:28,846 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 13:48:28,847 INFO L432 NwaCegarLoop]: 1764 mSDtfsCounter, 767 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 2627 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:28,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 2627 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:48:28,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6588 states. [2024-11-13 13:48:29,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6588 to 6586. [2024-11-13 13:48:29,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6586 states, 6585 states have (on average 1.5416856492027335) internal successors, (10152), 6585 states have internal predecessors, (10152), 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 13:48:29,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6586 states to 6586 states and 10152 transitions. [2024-11-13 13:48:29,077 INFO L78 Accepts]: Start accepts. Automaton has 6586 states and 10152 transitions. Word has length 238 [2024-11-13 13:48:29,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:29,078 INFO L471 AbstractCegarLoop]: Abstraction has 6586 states and 10152 transitions. [2024-11-13 13:48:29,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 13:48:29,078 INFO L276 IsEmpty]: Start isEmpty. Operand 6586 states and 10152 transitions. [2024-11-13 13:48:29,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-13 13:48:29,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:29,090 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:29,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:48:29,090 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:48:29,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:29,091 INFO L85 PathProgramCache]: Analyzing trace with hash -2126707749, now seen corresponding path program 1 times [2024-11-13 13:48:29,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:48:29,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743007746] [2024-11-13 13:48:29,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:29,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:48:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:30,374 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 13:48:30,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:48:30,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743007746] [2024-11-13 13:48:30,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743007746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:30,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:30,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:48:30,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991145238] [2024-11-13 13:48:30,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:30,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:48:30,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:48:30,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:48:30,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:48:30,377 INFO L87 Difference]: Start difference. First operand 6586 states and 10152 transitions. Second operand has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 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 13:48:30,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:30,617 INFO L93 Difference]: Finished difference Result 18825 states and 28830 transitions. [2024-11-13 13:48:30,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:48:30,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 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 238 [2024-11-13 13:48:30,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:30,667 INFO L225 Difference]: With dead ends: 18825 [2024-11-13 13:48:30,667 INFO L226 Difference]: Without dead ends: 12775 [2024-11-13 13:48:30,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:48:30,678 INFO L432 NwaCegarLoop]: 1453 mSDtfsCounter, 862 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 3800 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:30,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 3800 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:48:30,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12775 states. [2024-11-13 13:48:31,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12775 to 6821. [2024-11-13 13:48:31,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6821 states, 6820 states have (on average 1.5454545454545454) internal successors, (10540), 6820 states have internal predecessors, (10540), 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 13:48:31,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6821 states to 6821 states and 10540 transitions. [2024-11-13 13:48:31,074 INFO L78 Accepts]: Start accepts. Automaton has 6821 states and 10540 transitions. Word has length 238 [2024-11-13 13:48:31,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:31,075 INFO L471 AbstractCegarLoop]: Abstraction has 6821 states and 10540 transitions. [2024-11-13 13:48:31,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 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 13:48:31,075 INFO L276 IsEmpty]: Start isEmpty. Operand 6821 states and 10540 transitions. [2024-11-13 13:48:31,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-13 13:48:31,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:31,089 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:31,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 13:48:31,089 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:48:31,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:31,090 INFO L85 PathProgramCache]: Analyzing trace with hash -278216409, now seen corresponding path program 1 times [2024-11-13 13:48:31,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:48:31,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132883586] [2024-11-13 13:48:31,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:31,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:48:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:31,295 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 13:48:31,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:48:31,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132883586] [2024-11-13 13:48:31,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132883586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:31,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:31,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:48:31,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383026839] [2024-11-13 13:48:31,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:31,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:48:31,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:48:31,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:48:31,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:48:31,298 INFO L87 Difference]: Start difference. First operand 6821 states and 10540 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 13:48:31,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:31,501 INFO L93 Difference]: Finished difference Result 18901 states and 28909 transitions. [2024-11-13 13:48:31,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:48:31,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 240 [2024-11-13 13:48:31,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:31,535 INFO L225 Difference]: With dead ends: 18901 [2024-11-13 13:48:31,535 INFO L226 Difference]: Without dead ends: 12879 [2024-11-13 13:48:31,542 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 13:48:31,543 INFO L432 NwaCegarLoop]: 1660 mSDtfsCounter, 761 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 2553 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:31,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 2553 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:48:31,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12879 states. [2024-11-13 13:48:31,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12879 to 6925. [2024-11-13 13:48:31,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6925 states, 6924 states have (on average 1.542894280762565) internal successors, (10683), 6924 states have internal predecessors, (10683), 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 13:48:31,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6925 states to 6925 states and 10683 transitions. [2024-11-13 13:48:31,799 INFO L78 Accepts]: Start accepts. Automaton has 6925 states and 10683 transitions. Word has length 240 [2024-11-13 13:48:31,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:31,799 INFO L471 AbstractCegarLoop]: Abstraction has 6925 states and 10683 transitions. [2024-11-13 13:48:31,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 13:48:31,800 INFO L276 IsEmpty]: Start isEmpty. Operand 6925 states and 10683 transitions. [2024-11-13 13:48:31,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2024-11-13 13:48:31,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:31,812 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:31,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 13:48:31,812 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:48:31,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:31,813 INFO L85 PathProgramCache]: Analyzing trace with hash -601110319, now seen corresponding path program 1 times [2024-11-13 13:48:31,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:48:31,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664550074] [2024-11-13 13:48:31,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:31,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:48:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:32,028 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 13:48:32,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:48:32,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664550074] [2024-11-13 13:48:32,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664550074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:32,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:32,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:48:32,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217154465] [2024-11-13 13:48:32,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:32,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:48:32,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:48:32,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:48:32,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:48:32,033 INFO L87 Difference]: Start difference. First operand 6925 states and 10683 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 13:48:32,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:32,161 INFO L93 Difference]: Finished difference Result 13079 states and 20030 transitions. [2024-11-13 13:48:32,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:48:32,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 241 [2024-11-13 13:48:32,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:32,181 INFO L225 Difference]: With dead ends: 13079 [2024-11-13 13:48:32,181 INFO L226 Difference]: Without dead ends: 7050 [2024-11-13 13:48:32,188 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 13:48:32,189 INFO L432 NwaCegarLoop]: 917 mSDtfsCounter, 5 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1818 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:32,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1818 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:48:32,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7050 states. [2024-11-13 13:48:32,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7050 to 7050. [2024-11-13 13:48:32,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7050 states, 7049 states have (on average 1.5362462760675273) internal successors, (10829), 7049 states have internal predecessors, (10829), 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 13:48:32,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7050 states to 7050 states and 10829 transitions. [2024-11-13 13:48:32,411 INFO L78 Accepts]: Start accepts. Automaton has 7050 states and 10829 transitions. Word has length 241 [2024-11-13 13:48:32,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:32,412 INFO L471 AbstractCegarLoop]: Abstraction has 7050 states and 10829 transitions. [2024-11-13 13:48:32,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 13:48:32,412 INFO L276 IsEmpty]: Start isEmpty. Operand 7050 states and 10829 transitions. [2024-11-13 13:48:32,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-11-13 13:48:32,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:32,423 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:32,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 13:48:32,423 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:48:32,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:32,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1095107996, now seen corresponding path program 1 times [2024-11-13 13:48:32,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:48:32,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083099438] [2024-11-13 13:48:32,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:32,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:48:32,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:32,873 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 13:48:32,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:48:32,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083099438] [2024-11-13 13:48:32,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083099438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:32,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:32,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:48:32,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928058217] [2024-11-13 13:48:32,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:32,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:48:32,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:48:32,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:48:32,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:48:32,876 INFO L87 Difference]: Start difference. First operand 7050 states and 10829 transitions. Second operand has 5 states, 5 states have (on average 48.4) internal successors, (242), 4 states have internal predecessors, (242), 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 13:48:33,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:33,487 INFO L93 Difference]: Finished difference Result 12168 states and 18670 transitions. [2024-11-13 13:48:33,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:48:33,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.4) internal successors, (242), 4 states have internal predecessors, (242), 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 242 [2024-11-13 13:48:33,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:33,506 INFO L225 Difference]: With dead ends: 12168 [2024-11-13 13:48:33,507 INFO L226 Difference]: Without dead ends: 7050 [2024-11-13 13:48:33,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:48:33,514 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 2030 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2030 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:33,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2030 Valid, 1257 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 13:48:33,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7050 states. [2024-11-13 13:48:33,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7050 to 7050. [2024-11-13 13:48:33,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7050 states, 7049 states have (on average 1.5220598666477514) internal successors, (10729), 7049 states have internal predecessors, (10729), 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 13:48:33,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7050 states to 7050 states and 10729 transitions. [2024-11-13 13:48:33,715 INFO L78 Accepts]: Start accepts. Automaton has 7050 states and 10729 transitions. Word has length 242 [2024-11-13 13:48:33,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:33,715 INFO L471 AbstractCegarLoop]: Abstraction has 7050 states and 10729 transitions. [2024-11-13 13:48:33,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.4) internal successors, (242), 4 states have internal predecessors, (242), 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 13:48:33,715 INFO L276 IsEmpty]: Start isEmpty. Operand 7050 states and 10729 transitions. [2024-11-13 13:48:33,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-11-13 13:48:33,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:33,728 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:33,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 13:48:33,728 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:48:33,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:33,729 INFO L85 PathProgramCache]: Analyzing trace with hash -983259630, now seen corresponding path program 1 times [2024-11-13 13:48:33,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:48:33,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681531804] [2024-11-13 13:48:33,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:33,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:48:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:36,592 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 13:48:36,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:48:36,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681531804] [2024-11-13 13:48:36,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681531804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:36,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:36,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 13:48:36,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346637151] [2024-11-13 13:48:36,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:36,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 13:48:36,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:48:36,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 13:48:36,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:48:36,598 INFO L87 Difference]: Start difference. First operand 7050 states and 10729 transitions. Second operand has 13 states, 13 states have (on average 18.615384615384617) internal successors, (242), 13 states have internal predecessors, (242), 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 13:48:38,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:38,972 INFO L93 Difference]: Finished difference Result 12628 states and 19329 transitions. [2024-11-13 13:48:38,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 13:48:38,973 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 18.615384615384617) internal successors, (242), 13 states have internal predecessors, (242), 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 242 [2024-11-13 13:48:38,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:39,000 INFO L225 Difference]: With dead ends: 12628 [2024-11-13 13:48:39,001 INFO L226 Difference]: Without dead ends: 11410 [2024-11-13 13:48:39,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=159, Invalid=543, Unknown=0, NotChecked=0, Total=702 [2024-11-13 13:48:39,007 INFO L432 NwaCegarLoop]: 949 mSDtfsCounter, 5068 mSDsluCounter, 8981 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5068 SdHoareTripleChecker+Valid, 9930 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:39,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5068 Valid, 9930 Invalid, 1351 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [75 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 13:48:39,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11410 states. [2024-11-13 13:48:39,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11410 to 7938. [2024-11-13 13:48:39,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7938 states, 7937 states have (on average 1.5085044727226913) internal successors, (11973), 7937 states have internal predecessors, (11973), 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 13:48:39,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7938 states to 7938 states and 11973 transitions. [2024-11-13 13:48:39,207 INFO L78 Accepts]: Start accepts. Automaton has 7938 states and 11973 transitions. Word has length 242 [2024-11-13 13:48:39,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:39,208 INFO L471 AbstractCegarLoop]: Abstraction has 7938 states and 11973 transitions. [2024-11-13 13:48:39,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 18.615384615384617) internal successors, (242), 13 states have internal predecessors, (242), 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 13:48:39,209 INFO L276 IsEmpty]: Start isEmpty. Operand 7938 states and 11973 transitions. [2024-11-13 13:48:39,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-11-13 13:48:39,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:39,223 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:39,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 13:48:39,223 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:48:39,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:39,224 INFO L85 PathProgramCache]: Analyzing trace with hash 292390371, now seen corresponding path program 1 times [2024-11-13 13:48:39,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:48:39,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124456677] [2024-11-13 13:48:39,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:39,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:48:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:40,206 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 13:48:40,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:48:40,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124456677] [2024-11-13 13:48:40,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124456677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:40,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:40,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:48:40,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599097930] [2024-11-13 13:48:40,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:40,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:48:40,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:48:40,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:48:40,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:48:40,209 INFO L87 Difference]: Start difference. First operand 7938 states and 11973 transitions. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 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 13:48:40,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:40,480 INFO L93 Difference]: Finished difference Result 30515 states and 45949 transitions. [2024-11-13 13:48:40,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:48:40,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 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 242 [2024-11-13 13:48:40,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:40,595 INFO L225 Difference]: With dead ends: 30515 [2024-11-13 13:48:40,596 INFO L226 Difference]: Without dead ends: 22776 [2024-11-13 13:48:40,605 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 13:48:40,606 INFO L432 NwaCegarLoop]: 1436 mSDtfsCounter, 1875 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1875 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:40,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1875 Valid, 3108 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:48:40,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22776 states. [2024-11-13 13:48:40,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22776 to 15376. [2024-11-13 13:48:40,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15376 states, 15375 states have (on average 1.4980162601626017) internal successors, (23032), 15375 states have internal predecessors, (23032), 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 13:48:40,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15376 states to 15376 states and 23032 transitions. [2024-11-13 13:48:40,979 INFO L78 Accepts]: Start accepts. Automaton has 15376 states and 23032 transitions. Word has length 242 [2024-11-13 13:48:40,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:40,980 INFO L471 AbstractCegarLoop]: Abstraction has 15376 states and 23032 transitions. [2024-11-13 13:48:40,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 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 13:48:40,980 INFO L276 IsEmpty]: Start isEmpty. Operand 15376 states and 23032 transitions. [2024-11-13 13:48:41,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-11-13 13:48:41,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:41,005 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:41,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 13:48:41,005 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:48:41,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:41,006 INFO L85 PathProgramCache]: Analyzing trace with hash -2139638517, now seen corresponding path program 1 times [2024-11-13 13:48:41,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:48:41,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732527436] [2024-11-13 13:48:41,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:41,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:48:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:41,257 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 13:48:41,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:48:41,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732527436] [2024-11-13 13:48:41,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732527436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:41,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:41,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:48:41,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595562290] [2024-11-13 13:48:41,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:41,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:48:41,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:48:41,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:48:41,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:48:41,261 INFO L87 Difference]: Start difference. First operand 15376 states and 23032 transitions. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 13:48:41,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:41,585 INFO L93 Difference]: Finished difference Result 43573 states and 64808 transitions. [2024-11-13 13:48:41,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:48:41,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 244 [2024-11-13 13:48:41,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:41,668 INFO L225 Difference]: With dead ends: 43573 [2024-11-13 13:48:41,668 INFO L226 Difference]: Without dead ends: 29743 [2024-11-13 13:48:41,690 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 13:48:41,691 INFO L432 NwaCegarLoop]: 1705 mSDtfsCounter, 753 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 2559 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:41,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 2559 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:48:41,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29743 states. [2024-11-13 13:48:42,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29743 to 29741. [2024-11-13 13:48:42,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29741 states, 29740 states have (on average 1.4832212508406186) internal successors, (44111), 29740 states have internal predecessors, (44111), 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 13:48:42,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29741 states to 29741 states and 44111 transitions. [2024-11-13 13:48:42,426 INFO L78 Accepts]: Start accepts. Automaton has 29741 states and 44111 transitions. Word has length 244 [2024-11-13 13:48:42,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:42,426 INFO L471 AbstractCegarLoop]: Abstraction has 29741 states and 44111 transitions. [2024-11-13 13:48:42,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 13:48:42,427 INFO L276 IsEmpty]: Start isEmpty. Operand 29741 states and 44111 transitions. [2024-11-13 13:48:42,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-11-13 13:48:42,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:42,472 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:42,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 13:48:42,472 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:48:42,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:42,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1961392632, now seen corresponding path program 1 times [2024-11-13 13:48:42,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:48:42,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790247517] [2024-11-13 13:48:42,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:42,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:48:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:43,578 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 13:48:43,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:48:43,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790247517] [2024-11-13 13:48:43,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790247517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:43,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:43,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:48:43,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973692260] [2024-11-13 13:48:43,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:43,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:48:43,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:48:43,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:48:43,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:48:43,580 INFO L87 Difference]: Start difference. First operand 29741 states and 44111 transitions. Second operand has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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 13:48:43,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:43,763 INFO L93 Difference]: Finished difference Result 53787 states and 79401 transitions. [2024-11-13 13:48:43,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:48:43,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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 244 [2024-11-13 13:48:43,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:43,830 INFO L225 Difference]: With dead ends: 53787 [2024-11-13 13:48:43,830 INFO L226 Difference]: Without dead ends: 26487 [2024-11-13 13:48:43,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:48:43,861 INFO L432 NwaCegarLoop]: 1035 mSDtfsCounter, 99 mSDsluCounter, 1925 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 2960 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:43,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 2960 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:48:43,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26487 states. [2024-11-13 13:48:44,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26487 to 26411. [2024-11-13 13:48:44,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26411 states, 26410 states have (on average 1.482847406285498) internal successors, (39162), 26410 states have internal predecessors, (39162), 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 13:48:44,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26411 states to 26411 states and 39162 transitions. [2024-11-13 13:48:44,460 INFO L78 Accepts]: Start accepts. Automaton has 26411 states and 39162 transitions. Word has length 244 [2024-11-13 13:48:44,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:44,460 INFO L471 AbstractCegarLoop]: Abstraction has 26411 states and 39162 transitions. [2024-11-13 13:48:44,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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 13:48:44,461 INFO L276 IsEmpty]: Start isEmpty. Operand 26411 states and 39162 transitions. [2024-11-13 13:48:44,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-13 13:48:44,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:44,483 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:44,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 13:48:44,484 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:48:44,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:44,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1832944541, now seen corresponding path program 1 times [2024-11-13 13:48:44,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:48:44,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265560904] [2024-11-13 13:48:44,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:44,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:48:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:45,360 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 13:48:45,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:48:45,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265560904] [2024-11-13 13:48:45,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265560904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:45,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:45,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:48:45,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044385189] [2024-11-13 13:48:45,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:45,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:48:45,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:48:45,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:48:45,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:48:45,362 INFO L87 Difference]: Start difference. First operand 26411 states and 39162 transitions. Second operand has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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 13:48:45,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:45,832 INFO L93 Difference]: Finished difference Result 77311 states and 114520 transitions. [2024-11-13 13:48:45,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:48:45,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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 246 [2024-11-13 13:48:45,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:45,972 INFO L225 Difference]: With dead ends: 77311 [2024-11-13 13:48:45,972 INFO L226 Difference]: Without dead ends: 51397 [2024-11-13 13:48:45,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 13:48:45,996 INFO L432 NwaCegarLoop]: 1448 mSDtfsCounter, 786 mSDsluCounter, 1676 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 3124 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:45,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 3124 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:48:46,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51397 states. [2024-11-13 13:48:47,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51397 to 51395. [2024-11-13 13:48:47,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51395 states, 51394 states have (on average 1.4735183095302953) internal successors, (75730), 51394 states have internal predecessors, (75730), 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 13:48:47,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51395 states to 51395 states and 75730 transitions. [2024-11-13 13:48:47,233 INFO L78 Accepts]: Start accepts. Automaton has 51395 states and 75730 transitions. Word has length 246 [2024-11-13 13:48:47,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:47,234 INFO L471 AbstractCegarLoop]: Abstraction has 51395 states and 75730 transitions. [2024-11-13 13:48:47,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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 13:48:47,234 INFO L276 IsEmpty]: Start isEmpty. Operand 51395 states and 75730 transitions. [2024-11-13 13:48:47,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-13 13:48:47,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:47,302 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:47,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 13:48:47,303 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:48:47,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:47,304 INFO L85 PathProgramCache]: Analyzing trace with hash 637505465, now seen corresponding path program 1 times [2024-11-13 13:48:47,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:48:47,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767269663] [2024-11-13 13:48:47,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:47,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:48:47,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:47,612 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 13:48:47,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:48:47,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767269663] [2024-11-13 13:48:47,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767269663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:47,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:47,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:48:47,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99098285] [2024-11-13 13:48:47,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:47,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:48:47,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:48:47,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:48:47,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:48:47,617 INFO L87 Difference]: Start difference. First operand 51395 states and 75730 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 13:48:48,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:48,288 INFO L93 Difference]: Finished difference Result 148773 states and 218337 transitions. [2024-11-13 13:48:48,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:48:48,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 247 [2024-11-13 13:48:48,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:48,580 INFO L225 Difference]: With dead ends: 148773 [2024-11-13 13:48:48,580 INFO L226 Difference]: Without dead ends: 100425 [2024-11-13 13:48:48,632 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 13:48:48,635 INFO L432 NwaCegarLoop]: 1696 mSDtfsCounter, 745 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 2548 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:48,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 2548 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:48:48,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100425 states. [2024-11-13 13:48:50,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100425 to 100377. [2024-11-13 13:48:51,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100377 states, 100376 states have (on average 1.461295528811668) internal successors, (146679), 100376 states have internal predecessors, (146679), 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 13:48:51,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100377 states to 100377 states and 146679 transitions. [2024-11-13 13:48:51,413 INFO L78 Accepts]: Start accepts. Automaton has 100377 states and 146679 transitions. Word has length 247 [2024-11-13 13:48:51,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:51,414 INFO L471 AbstractCegarLoop]: Abstraction has 100377 states and 146679 transitions. [2024-11-13 13:48:51,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 13:48:51,414 INFO L276 IsEmpty]: Start isEmpty. Operand 100377 states and 146679 transitions. [2024-11-13 13:48:51,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-13 13:48:51,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:51,951 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:51,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 13:48:51,951 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:48:51,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:51,953 INFO L85 PathProgramCache]: Analyzing trace with hash -2035619228, now seen corresponding path program 1 times [2024-11-13 13:48:51,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:48:51,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810141827] [2024-11-13 13:48:51,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:51,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:48:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:53,144 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 13:48:53,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:48:53,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810141827] [2024-11-13 13:48:53,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810141827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:53,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:53,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:48:53,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544344730] [2024-11-13 13:48:53,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:53,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:48:53,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:48:53,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:48:53,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:48:53,150 INFO L87 Difference]: Start difference. First operand 100377 states and 146679 transitions. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 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 13:48:54,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:54,284 INFO L93 Difference]: Finished difference Result 282433 states and 410774 transitions. [2024-11-13 13:48:54,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:48:54,285 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 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 248 [2024-11-13 13:48:54,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:54,613 INFO L225 Difference]: With dead ends: 282433 [2024-11-13 13:48:54,613 INFO L226 Difference]: Without dead ends: 188105 [2024-11-13 13:48:54,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:48:54,725 INFO L432 NwaCegarLoop]: 1427 mSDtfsCounter, 838 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 3737 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:54,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 3737 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:48:55,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188105 states. [2024-11-13 13:48:57,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188105 to 99711. [2024-11-13 13:48:57,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99711 states, 99710 states have (on average 1.4636245110821382) internal successors, (145938), 99710 states have internal predecessors, (145938), 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 13:48:57,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99711 states to 99711 states and 145938 transitions. [2024-11-13 13:48:57,857 INFO L78 Accepts]: Start accepts. Automaton has 99711 states and 145938 transitions. Word has length 248 [2024-11-13 13:48:57,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:57,857 INFO L471 AbstractCegarLoop]: Abstraction has 99711 states and 145938 transitions. [2024-11-13 13:48:57,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 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 13:48:57,857 INFO L276 IsEmpty]: Start isEmpty. Operand 99711 states and 145938 transitions. [2024-11-13 13:48:57,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-13 13:48:57,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:57,987 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:57,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 13:48:57,987 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:48:57,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:57,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1177019986, now seen corresponding path program 1 times [2024-11-13 13:48:57,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:48:57,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244353945] [2024-11-13 13:48:57,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:57,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:48:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:58,247 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 13:48:58,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:48:58,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244353945] [2024-11-13 13:48:58,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244353945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:58,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:58,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:48:58,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794579482] [2024-11-13 13:48:58,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:58,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:48:58,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:48:58,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:48:58,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:48:58,250 INFO L87 Difference]: Start difference. First operand 99711 states and 145938 transitions. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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 13:48:59,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:59,528 INFO L93 Difference]: Finished difference Result 257174 states and 373279 transitions. [2024-11-13 13:48:59,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:48:59,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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 251 [2024-11-13 13:48:59,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:59,839 INFO L225 Difference]: With dead ends: 257174 [2024-11-13 13:48:59,839 INFO L226 Difference]: Without dead ends: 178364 [2024-11-13 13:48:59,906 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 13:48:59,907 INFO L432 NwaCegarLoop]: 931 mSDtfsCounter, 745 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 1819 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:59,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 1819 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:49:00,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178364 states. [2024-11-13 13:49:03,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178364 to 100424. [2024-11-13 13:49:03,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100424 states, 100423 states have (on average 1.4619658843093715) internal successors, (146815), 100423 states have internal predecessors, (146815), 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 13:49:03,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100424 states to 100424 states and 146815 transitions. [2024-11-13 13:49:03,559 INFO L78 Accepts]: Start accepts. Automaton has 100424 states and 146815 transitions. Word has length 251 [2024-11-13 13:49:03,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:49:03,560 INFO L471 AbstractCegarLoop]: Abstraction has 100424 states and 146815 transitions. [2024-11-13 13:49:03,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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 13:49:03,560 INFO L276 IsEmpty]: Start isEmpty. Operand 100424 states and 146815 transitions. [2024-11-13 13:49:03,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-13 13:49:03,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:49:03,688 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:49:03,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 13:49:03,688 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:49:03,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:49:03,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1853600832, now seen corresponding path program 1 times [2024-11-13 13:49:03,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:49:03,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371358672] [2024-11-13 13:49:03,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:49:03,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:49:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:49:05,081 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 13:49:05,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:49:05,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371358672] [2024-11-13 13:49:05,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371358672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:49:05,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:49:05,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:49:05,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551526690] [2024-11-13 13:49:05,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:49:05,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:49:05,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:49:05,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:49:05,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:49:05,085 INFO L87 Difference]: Start difference. First operand 100424 states and 146815 transitions. Second operand has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 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 13:49:05,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:49:05,648 INFO L93 Difference]: Finished difference Result 192480 states and 280625 transitions. [2024-11-13 13:49:05,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:49:05,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 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 252 [2024-11-13 13:49:05,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:49:05,746 INFO L225 Difference]: With dead ends: 192480 [2024-11-13 13:49:05,746 INFO L226 Difference]: Without dead ends: 100428 [2024-11-13 13:49:05,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:49:05,799 INFO L432 NwaCegarLoop]: 1011 mSDtfsCounter, 91 mSDsluCounter, 1895 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 2906 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:49:05,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 2906 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:49:05,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100428 states. [2024-11-13 13:49:07,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100428 to 99580. [2024-11-13 13:49:07,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99580 states, 99579 states have (on average 1.4635816788680345) internal successors, (145742), 99579 states have internal predecessors, (145742), 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 13:49:07,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99580 states to 99580 states and 145742 transitions. [2024-11-13 13:49:07,714 INFO L78 Accepts]: Start accepts. Automaton has 99580 states and 145742 transitions. Word has length 252 [2024-11-13 13:49:07,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:49:07,714 INFO L471 AbstractCegarLoop]: Abstraction has 99580 states and 145742 transitions. [2024-11-13 13:49:07,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 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 13:49:07,714 INFO L276 IsEmpty]: Start isEmpty. Operand 99580 states and 145742 transitions. [2024-11-13 13:49:08,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-13 13:49:08,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:49:08,193 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:49:08,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 13:49:08,193 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:49:08,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:49:08,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1655221817, now seen corresponding path program 1 times [2024-11-13 13:49:08,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:49:08,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254565687] [2024-11-13 13:49:08,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:49:08,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:49:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:49:08,394 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 13:49:08,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:49:08,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254565687] [2024-11-13 13:49:08,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254565687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:49:08,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:49:08,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:49:08,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806695012] [2024-11-13 13:49:08,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:49:08,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:49:08,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:49:08,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:49:08,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:49:08,397 INFO L87 Difference]: Start difference. First operand 99580 states and 145742 transitions. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 13:49:09,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:49:09,159 INFO L93 Difference]: Finished difference Result 276705 states and 402345 transitions. [2024-11-13 13:49:09,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:49:09,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 254 [2024-11-13 13:49:09,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:49:09,353 INFO L225 Difference]: With dead ends: 276705 [2024-11-13 13:49:09,353 INFO L226 Difference]: Without dead ends: 190079 [2024-11-13 13:49:09,422 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 13:49:09,424 INFO L432 NwaCegarLoop]: 1700 mSDtfsCounter, 736 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 2552 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:49:09,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 2552 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:49:09,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190079 states. [2024-11-13 13:49:13,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190079 to 190077. [2024-11-13 13:49:13,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190077 states, 190076 states have (on average 1.4498253330246849) internal successors, (275577), 190076 states have internal predecessors, (275577), 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 13:49:13,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190077 states to 190077 states and 275577 transitions. [2024-11-13 13:49:13,428 INFO L78 Accepts]: Start accepts. Automaton has 190077 states and 275577 transitions. Word has length 254 [2024-11-13 13:49:13,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:49:13,428 INFO L471 AbstractCegarLoop]: Abstraction has 190077 states and 275577 transitions. [2024-11-13 13:49:13,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 13:49:13,429 INFO L276 IsEmpty]: Start isEmpty. Operand 190077 states and 275577 transitions. [2024-11-13 13:49:14,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-13 13:49:14,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:49:14,455 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:49:14,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 13:49:14,455 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:49:14,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:49:14,456 INFO L85 PathProgramCache]: Analyzing trace with hash -463326811, now seen corresponding path program 1 times [2024-11-13 13:49:14,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:49:14,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900359598] [2024-11-13 13:49:14,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:49:14,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:49:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:49:15,403 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 13:49:15,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:49:15,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900359598] [2024-11-13 13:49:15,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900359598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:49:15,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:49:15,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:49:15,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656470222] [2024-11-13 13:49:15,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:49:15,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:49:15,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:49:15,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:49:15,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:49:15,405 INFO L87 Difference]: Start difference. First operand 190077 states and 275577 transitions. Second operand has 4 states, 4 states have (on average 63.5) internal successors, (254), 4 states have internal predecessors, (254), 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 13:49:18,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:49:18,064 INFO L93 Difference]: Finished difference Result 727521 states and 1049058 transitions. [2024-11-13 13:49:18,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:49:18,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 63.5) internal successors, (254), 4 states have internal predecessors, (254), 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 254 [2024-11-13 13:49:18,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:49:18,803 INFO L225 Difference]: With dead ends: 727521 [2024-11-13 13:49:18,803 INFO L226 Difference]: Without dead ends: 540401 [2024-11-13 13:49:18,989 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 13:49:18,990 INFO L432 NwaCegarLoop]: 1404 mSDtfsCounter, 1574 mSDsluCounter, 1633 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 3037 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:49:18,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 3037 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:49:20,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540401 states.