./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label03.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_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/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_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/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_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/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 e1d9709d5a0621fd4bc0599bfe40ccbc8c215c029862756c658cfcd57bd9db9f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:44:19,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:44:19,738 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 12:44:19,745 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:44:19,745 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:44:19,774 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:44:19,775 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:44:19,775 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:44:19,776 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:44:19,776 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:44:19,776 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:44:19,776 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:44:19,777 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:44:19,777 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:44:19,777 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:44:19,777 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:44:19,777 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 12:44:19,777 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:44:19,778 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:44:19,778 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:44:19,778 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:44:19,778 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 12:44:19,778 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:44:19,778 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 12:44:19,778 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:44:19,778 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:44:19,778 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:44:19,778 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:44:19,778 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:44:19,779 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:44:19,779 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:44:19,779 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:44:19,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:44:19,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:44:19,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:44:19,780 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 12:44:19,780 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:44:19,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:44:19,780 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:44:19,781 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:44:19,781 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:44:19,781 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:44:19,781 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_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/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 -> e1d9709d5a0621fd4bc0599bfe40ccbc8c215c029862756c658cfcd57bd9db9f [2024-11-13 12:44:20,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:44:20,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:44:20,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:44:20,228 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:44:20,229 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:44:20,230 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label03.c Unable to find full path for "g++" [2024-11-13 12:44:22,306 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:44:23,022 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:44:23,024 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label03.c [2024-11-13 12:44:23,063 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/bin/uautomizer-verify-qhAvR1uOyd/data/d127c697a/79cb4dbfc13241c796d548941affaadf/FLAGe314b53d3 [2024-11-13 12:44:23,083 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/bin/uautomizer-verify-qhAvR1uOyd/data/d127c697a/79cb4dbfc13241c796d548941affaadf [2024-11-13 12:44:23,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:44:23,088 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:44:23,091 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:44:23,093 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:44:23,098 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:44:23,099 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:44:23" (1/1) ... [2024-11-13 12:44:23,100 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d095f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:23, skipping insertion in model container [2024-11-13 12:44:23,103 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:44:23" (1/1) ... [2024-11-13 12:44:23,245 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:44:23,769 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_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label03.c[15510,15523] [2024-11-13 12:44:23,827 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_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label03.c[17847,17860] [2024-11-13 12:44:24,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:44:24,972 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:44:25,042 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_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label03.c[15510,15523] [2024-11-13 12:44:25,053 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_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label03.c[17847,17860] [2024-11-13 12:44:25,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:44:25,696 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:44:25,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:25 WrapperNode [2024-11-13 12:44:25,698 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:44:25,700 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:44:25,701 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:44:25,701 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:44:25,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:25" (1/1) ... [2024-11-13 12:44:25,828 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:25" (1/1) ... [2024-11-13 12:44:26,334 INFO L138 Inliner]: procedures = 38, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5155 [2024-11-13 12:44:26,335 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:44:26,337 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:44:26,337 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:44:26,338 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:44:26,350 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:25" (1/1) ... [2024-11-13 12:44:26,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:25" (1/1) ... [2024-11-13 12:44:26,470 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:25" (1/1) ... [2024-11-13 12:44:26,688 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 12:44:26,688 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:25" (1/1) ... [2024-11-13 12:44:26,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:25" (1/1) ... [2024-11-13 12:44:26,977 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:25" (1/1) ... [2024-11-13 12:44:27,031 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:25" (1/1) ... [2024-11-13 12:44:27,074 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:25" (1/1) ... [2024-11-13 12:44:27,103 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:25" (1/1) ... [2024-11-13 12:44:27,181 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:44:27,183 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:44:27,183 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:44:27,183 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:44:27,185 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:25" (1/1) ... [2024-11-13 12:44:27,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:44:27,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:44:27,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:44:27,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:44:27,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:44:27,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 12:44:27,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:44:27,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:44:27,436 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:44:27,439 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:44:34,729 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-11-13 12:44:34,729 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:44:34,772 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:44:34,772 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 12:44:34,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:44:34 BoogieIcfgContainer [2024-11-13 12:44:34,773 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:44:34,777 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:44:34,777 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:44:34,783 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:44:34,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:44:23" (1/3) ... [2024-11-13 12:44:34,784 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7645bdc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:44:34, skipping insertion in model container [2024-11-13 12:44:34,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:25" (2/3) ... [2024-11-13 12:44:34,785 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7645bdc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:44:34, skipping insertion in model container [2024-11-13 12:44:34,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:44:34" (3/3) ... [2024-11-13 12:44:34,786 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label03.c [2024-11-13 12:44:34,805 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:44:34,808 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label03.c that has 1 procedures, 916 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-13 12:44:34,900 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:44:34,914 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;@245e359b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:44:34,915 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 12:44:34,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 916 states, 913 states have (on average 1.9036144578313252) internal successors, (1738), 915 states have internal predecessors, (1738), 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 12:44:34,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-13 12:44:34,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:44:34,933 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] [2024-11-13 12:44:34,935 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:44:34,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:34,943 INFO L85 PathProgramCache]: Analyzing trace with hash 917645860, now seen corresponding path program 1 times [2024-11-13 12:44:34,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:34,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444297118] [2024-11-13 12:44:34,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:34,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:35,410 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 12:44:35,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:35,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444297118] [2024-11-13 12:44:35,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444297118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:35,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:44:35,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:44:35,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108338169] [2024-11-13 12:44:35,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:35,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:44:35,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:35,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:44:35,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:44:35,462 INFO L87 Difference]: Start difference. First operand has 916 states, 913 states have (on average 1.9036144578313252) internal successors, (1738), 915 states have internal predecessors, (1738), 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 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 12:44:41,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:44:41,072 INFO L93 Difference]: Finished difference Result 2539 states and 4888 transitions. [2024-11-13 12:44:41,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:44:41,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 20 [2024-11-13 12:44:41,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:44:41,096 INFO L225 Difference]: With dead ends: 2539 [2024-11-13 12:44:41,096 INFO L226 Difference]: Without dead ends: 1601 [2024-11-13 12:44:41,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 12:44:41,106 INFO L432 NwaCegarLoop]: 313 mSDtfsCounter, 1044 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 3208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-13 12:44:41,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 324 Invalid, 3208 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [771 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-13 12:44:41,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2024-11-13 12:44:41,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1601. [2024-11-13 12:44:41,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1599 states have (on average 1.8411507191994998) internal successors, (2944), 1600 states have internal predecessors, (2944), 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 12:44:41,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2944 transitions. [2024-11-13 12:44:41,311 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2944 transitions. Word has length 20 [2024-11-13 12:44:41,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:44:41,312 INFO L471 AbstractCegarLoop]: Abstraction has 1601 states and 2944 transitions. [2024-11-13 12:44:41,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 12:44:41,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2944 transitions. [2024-11-13 12:44:41,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-13 12:44:41,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:44:41,314 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] [2024-11-13 12:44:41,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 12:44:41,314 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:44:41,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:41,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1906067623, now seen corresponding path program 1 times [2024-11-13 12:44:41,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:41,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565921284] [2024-11-13 12:44:41,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:41,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:41,703 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 12:44:41,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:41,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565921284] [2024-11-13 12:44:41,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565921284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:41,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:44:41,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:44:41,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20019841] [2024-11-13 12:44:41,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:41,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 12:44:41,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:41,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 12:44:41,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:44:41,707 INFO L87 Difference]: Start difference. First operand 1601 states and 2944 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 12:44:41,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:44:41,839 INFO L93 Difference]: Finished difference Result 1655 states and 3028 transitions. [2024-11-13 12:44:41,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:44:41,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 26 [2024-11-13 12:44:41,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:44:41,849 INFO L225 Difference]: With dead ends: 1655 [2024-11-13 12:44:41,849 INFO L226 Difference]: Without dead ends: 1601 [2024-11-13 12:44:41,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:44:41,852 INFO L432 NwaCegarLoop]: 1603 mSDtfsCounter, 0 mSDsluCounter, 4764 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6367 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:44:41,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6367 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 12:44:41,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2024-11-13 12:44:41,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1601. [2024-11-13 12:44:41,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1599 states have (on average 1.8161350844277673) internal successors, (2904), 1600 states have internal predecessors, (2904), 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 12:44:41,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2904 transitions. [2024-11-13 12:44:41,915 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2904 transitions. Word has length 26 [2024-11-13 12:44:41,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:44:41,915 INFO L471 AbstractCegarLoop]: Abstraction has 1601 states and 2904 transitions. [2024-11-13 12:44:41,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 12:44:41,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2904 transitions. [2024-11-13 12:44:41,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 12:44:41,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:44:41,917 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:44:41,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 12:44:41,918 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:44:41,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:41,919 INFO L85 PathProgramCache]: Analyzing trace with hash 162287091, now seen corresponding path program 1 times [2024-11-13 12:44:41,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:41,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340587800] [2024-11-13 12:44:41,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:41,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:42,453 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 12:44:42,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:42,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340587800] [2024-11-13 12:44:42,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340587800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:42,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:44:42,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 12:44:42,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199100873] [2024-11-13 12:44:42,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:42,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 12:44:42,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:42,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 12:44:42,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:44:42,458 INFO L87 Difference]: Start difference. First operand 1601 states and 2904 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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 12:44:42,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:44:42,999 INFO L93 Difference]: Finished difference Result 2201 states and 3864 transitions. [2024-11-13 12:44:43,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 12:44:43,000 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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 65 [2024-11-13 12:44:43,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:44:43,012 INFO L225 Difference]: With dead ends: 2201 [2024-11-13 12:44:43,013 INFO L226 Difference]: Without dead ends: 2151 [2024-11-13 12:44:43,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-13 12:44:43,019 INFO L432 NwaCegarLoop]: 1559 mSDtfsCounter, 9795 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9795 SdHoareTripleChecker+Valid, 3342 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:44:43,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9795 Valid, 3342 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 12:44:43,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2151 states. [2024-11-13 12:44:43,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2151 to 1649. [2024-11-13 12:44:43,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1649 states, 1647 states have (on average 1.8099574984820888) internal successors, (2981), 1648 states have internal predecessors, (2981), 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 12:44:43,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 2981 transitions. [2024-11-13 12:44:43,097 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 2981 transitions. Word has length 65 [2024-11-13 12:44:43,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:44:43,098 INFO L471 AbstractCegarLoop]: Abstraction has 1649 states and 2981 transitions. [2024-11-13 12:44:43,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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 12:44:43,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 2981 transitions. [2024-11-13 12:44:43,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 12:44:43,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:44:43,101 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:44:43,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 12:44:43,102 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:44:43,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:43,102 INFO L85 PathProgramCache]: Analyzing trace with hash -76622237, now seen corresponding path program 1 times [2024-11-13 12:44:43,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:43,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700477017] [2024-11-13 12:44:43,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:43,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:43,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:43,346 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 12:44:43,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:43,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700477017] [2024-11-13 12:44:43,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700477017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:43,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:44:43,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:44:43,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248209769] [2024-11-13 12:44:43,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:43,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:44:43,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:43,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:44:43,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:44:43,351 INFO L87 Difference]: Start difference. First operand 1649 states and 2981 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 12:44:43,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:44:43,430 INFO L93 Difference]: Finished difference Result 1834 states and 3276 transitions. [2024-11-13 12:44:43,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:44:43,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 67 [2024-11-13 12:44:43,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:44:43,442 INFO L225 Difference]: With dead ends: 1834 [2024-11-13 12:44:43,443 INFO L226 Difference]: Without dead ends: 1736 [2024-11-13 12:44:43,444 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 12:44:43,445 INFO L432 NwaCegarLoop]: 1561 mSDtfsCounter, 1492 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:44:43,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1634 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:44:43,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2024-11-13 12:44:43,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1732. [2024-11-13 12:44:43,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1730 states have (on average 1.7982658959537572) internal successors, (3111), 1731 states have internal predecessors, (3111), 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 12:44:43,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 3111 transitions. [2024-11-13 12:44:43,521 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 3111 transitions. Word has length 67 [2024-11-13 12:44:43,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:44:43,522 INFO L471 AbstractCegarLoop]: Abstraction has 1732 states and 3111 transitions. [2024-11-13 12:44:43,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 12:44:43,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 3111 transitions. [2024-11-13 12:44:43,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 12:44:43,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:44:43,529 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:44:43,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 12:44:43,529 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:44:43,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:43,530 INFO L85 PathProgramCache]: Analyzing trace with hash -10128725, now seen corresponding path program 1 times [2024-11-13 12:44:43,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:43,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805582658] [2024-11-13 12:44:43,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:43,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:44,157 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 12:44:44,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:44,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805582658] [2024-11-13 12:44:44,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805582658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:44,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:44:44,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 12:44:44,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325078215] [2024-11-13 12:44:44,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:44,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 12:44:44,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:44,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 12:44:44,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:44:44,160 INFO L87 Difference]: Start difference. First operand 1732 states and 3111 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 12:44:44,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:44:44,614 INFO L93 Difference]: Finished difference Result 1915 states and 3399 transitions. [2024-11-13 12:44:44,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 12:44:44,615 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 67 [2024-11-13 12:44:44,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:44:44,624 INFO L225 Difference]: With dead ends: 1915 [2024-11-13 12:44:44,624 INFO L226 Difference]: Without dead ends: 1734 [2024-11-13 12:44:44,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-13 12:44:44,626 INFO L432 NwaCegarLoop]: 1557 mSDtfsCounter, 9010 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9010 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:44:44,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9010 Valid, 1940 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 12:44:44,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2024-11-13 12:44:44,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1732. [2024-11-13 12:44:44,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1730 states have (on average 1.7971098265895953) internal successors, (3109), 1731 states have internal predecessors, (3109), 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 12:44:44,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 3109 transitions. [2024-11-13 12:44:44,697 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 3109 transitions. Word has length 67 [2024-11-13 12:44:44,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:44:44,698 INFO L471 AbstractCegarLoop]: Abstraction has 1732 states and 3109 transitions. [2024-11-13 12:44:44,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 12:44:44,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 3109 transitions. [2024-11-13 12:44:44,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 12:44:44,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:44:44,701 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:44:44,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 12:44:44,701 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:44:44,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:44,702 INFO L85 PathProgramCache]: Analyzing trace with hash -728713468, now seen corresponding path program 1 times [2024-11-13 12:44:44,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:44,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245709402] [2024-11-13 12:44:44,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:44,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:44,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:45,134 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 12:44:45,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:45,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245709402] [2024-11-13 12:44:45,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245709402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:45,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:44:45,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:44:45,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842482810] [2024-11-13 12:44:45,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:45,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 12:44:45,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:45,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 12:44:45,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:44:45,137 INFO L87 Difference]: Start difference. First operand 1732 states and 3109 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:44:45,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:44:45,205 INFO L93 Difference]: Finished difference Result 1740 states and 3118 transitions. [2024-11-13 12:44:45,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:44:45,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-13 12:44:45,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:44:45,214 INFO L225 Difference]: With dead ends: 1740 [2024-11-13 12:44:45,214 INFO L226 Difference]: Without dead ends: 1738 [2024-11-13 12:44:45,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:44:45,216 INFO L432 NwaCegarLoop]: 1562 mSDtfsCounter, 0 mSDsluCounter, 4677 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6239 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:44:45,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6239 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:44:45,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2024-11-13 12:44:45,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1738. [2024-11-13 12:44:45,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1738 states, 1736 states have (on average 1.793778801843318) internal successors, (3114), 1737 states have internal predecessors, (3114), 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 12:44:45,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 3114 transitions. [2024-11-13 12:44:45,333 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 3114 transitions. Word has length 68 [2024-11-13 12:44:45,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:44:45,333 INFO L471 AbstractCegarLoop]: Abstraction has 1738 states and 3114 transitions. [2024-11-13 12:44:45,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:44:45,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 3114 transitions. [2024-11-13 12:44:45,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 12:44:45,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:44:45,335 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:44:45,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 12:44:45,336 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:44:45,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:45,336 INFO L85 PathProgramCache]: Analyzing trace with hash -741834325, now seen corresponding path program 1 times [2024-11-13 12:44:45,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:45,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164312021] [2024-11-13 12:44:45,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:45,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:45,459 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 12:44:45,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:45,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164312021] [2024-11-13 12:44:45,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164312021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:45,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:44:45,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:44:45,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894208180] [2024-11-13 12:44:45,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:45,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:44:45,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:45,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:44:45,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:44:45,464 INFO L87 Difference]: Start difference. First operand 1738 states and 3114 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:44:45,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:44:45,522 INFO L93 Difference]: Finished difference Result 2096 states and 3666 transitions. [2024-11-13 12:44:45,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:44:45,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-13 12:44:45,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:44:45,532 INFO L225 Difference]: With dead ends: 2096 [2024-11-13 12:44:45,532 INFO L226 Difference]: Without dead ends: 1909 [2024-11-13 12:44:45,534 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 12:44:45,534 INFO L432 NwaCegarLoop]: 1622 mSDtfsCounter, 1507 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:44:45,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1707 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:44:45,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1909 states. [2024-11-13 12:44:45,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1909 to 1907. [2024-11-13 12:44:45,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1907 states, 1905 states have (on average 1.7695538057742781) internal successors, (3371), 1906 states have internal predecessors, (3371), 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 12:44:45,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 3371 transitions. [2024-11-13 12:44:45,600 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 3371 transitions. Word has length 69 [2024-11-13 12:44:45,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:44:45,601 INFO L471 AbstractCegarLoop]: Abstraction has 1907 states and 3371 transitions. [2024-11-13 12:44:45,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:44:45,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 3371 transitions. [2024-11-13 12:44:45,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 12:44:45,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:44:45,602 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:44:45,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 12:44:45,603 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:44:45,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:45,604 INFO L85 PathProgramCache]: Analyzing trace with hash -477977941, now seen corresponding path program 1 times [2024-11-13 12:44:45,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:45,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091751682] [2024-11-13 12:44:45,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:45,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:45,715 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 12:44:45,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:45,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091751682] [2024-11-13 12:44:45,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091751682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:45,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:44:45,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:44:45,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091224966] [2024-11-13 12:44:45,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:45,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:44:45,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:45,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:44:45,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:44:45,717 INFO L87 Difference]: Start difference. First operand 1907 states and 3371 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:44:45,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:44:45,793 INFO L93 Difference]: Finished difference Result 2587 states and 4409 transitions. [2024-11-13 12:44:45,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:44:45,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-13 12:44:45,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:44:45,806 INFO L225 Difference]: With dead ends: 2587 [2024-11-13 12:44:45,806 INFO L226 Difference]: Without dead ends: 2231 [2024-11-13 12:44:45,808 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 12:44:45,809 INFO L432 NwaCegarLoop]: 1620 mSDtfsCounter, 1505 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:44:45,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1709 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:44:45,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2024-11-13 12:44:45,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2229. [2024-11-13 12:44:45,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2229 states, 2227 states have (on average 1.7301302200269422) internal successors, (3853), 2228 states have internal predecessors, (3853), 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 12:44:45,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2229 states to 2229 states and 3853 transitions. [2024-11-13 12:44:45,892 INFO L78 Accepts]: Start accepts. Automaton has 2229 states and 3853 transitions. Word has length 69 [2024-11-13 12:44:45,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:44:45,892 INFO L471 AbstractCegarLoop]: Abstraction has 2229 states and 3853 transitions. [2024-11-13 12:44:45,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:44:45,892 INFO L276 IsEmpty]: Start isEmpty. Operand 2229 states and 3853 transitions. [2024-11-13 12:44:45,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 12:44:45,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:44:45,895 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:44:45,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 12:44:45,895 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:44:45,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:45,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1455184725, now seen corresponding path program 1 times [2024-11-13 12:44:45,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:45,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499039529] [2024-11-13 12:44:45,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:45,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:45,998 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 12:44:45,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:45,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499039529] [2024-11-13 12:44:45,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499039529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:45,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:44:45,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:44:45,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58339527] [2024-11-13 12:44:45,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:45,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:44:46,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:46,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:44:46,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:44:46,001 INFO L87 Difference]: Start difference. First operand 2229 states and 3853 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:44:46,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:44:46,083 INFO L93 Difference]: Finished difference Result 3521 states and 5799 transitions. [2024-11-13 12:44:46,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:44:46,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-13 12:44:46,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:44:46,098 INFO L225 Difference]: With dead ends: 3521 [2024-11-13 12:44:46,098 INFO L226 Difference]: Without dead ends: 2843 [2024-11-13 12:44:46,100 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 12:44:46,102 INFO L432 NwaCegarLoop]: 1608 mSDtfsCounter, 1501 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:44:46,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 1705 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:44:46,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2024-11-13 12:44:46,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 2841. [2024-11-13 12:44:46,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2841 states, 2839 states have (on average 1.674181049665375) internal successors, (4753), 2840 states have internal predecessors, (4753), 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 12:44:46,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 4753 transitions. [2024-11-13 12:44:46,260 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 4753 transitions. Word has length 69 [2024-11-13 12:44:46,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:44:46,260 INFO L471 AbstractCegarLoop]: Abstraction has 2841 states and 4753 transitions. [2024-11-13 12:44:46,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:44:46,261 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 4753 transitions. [2024-11-13 12:44:46,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 12:44:46,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:44:46,262 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:44:46,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 12:44:46,262 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:44:46,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:46,263 INFO L85 PathProgramCache]: Analyzing trace with hash 325748139, now seen corresponding path program 1 times [2024-11-13 12:44:46,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:46,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908663034] [2024-11-13 12:44:46,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:46,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:46,386 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 12:44:46,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:46,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908663034] [2024-11-13 12:44:46,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908663034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:46,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:44:46,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:44:46,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455660342] [2024-11-13 12:44:46,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:46,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:44:46,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:46,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:44:46,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:44:46,388 INFO L87 Difference]: Start difference. First operand 2841 states and 4753 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:44:46,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:44:46,507 INFO L93 Difference]: Finished difference Result 5293 states and 8387 transitions. [2024-11-13 12:44:46,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:44:46,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-13 12:44:46,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:44:46,526 INFO L225 Difference]: With dead ends: 5293 [2024-11-13 12:44:46,526 INFO L226 Difference]: Without dead ends: 4003 [2024-11-13 12:44:46,530 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 12:44:46,532 INFO L432 NwaCegarLoop]: 1606 mSDtfsCounter, 1499 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:44:46,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 1707 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:44:46,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4003 states. [2024-11-13 12:44:46,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4003 to 4001. [2024-11-13 12:44:46,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4001 states, 3999 states have (on average 1.606651662915729) internal successors, (6425), 4000 states have internal predecessors, (6425), 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 12:44:46,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4001 states to 4001 states and 6425 transitions. [2024-11-13 12:44:46,698 INFO L78 Accepts]: Start accepts. Automaton has 4001 states and 6425 transitions. Word has length 69 [2024-11-13 12:44:46,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:44:46,699 INFO L471 AbstractCegarLoop]: Abstraction has 4001 states and 6425 transitions. [2024-11-13 12:44:46,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:44:46,700 INFO L276 IsEmpty]: Start isEmpty. Operand 4001 states and 6425 transitions. [2024-11-13 12:44:46,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 12:44:46,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:44:46,703 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:44:46,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 12:44:46,703 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:44:46,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:46,704 INFO L85 PathProgramCache]: Analyzing trace with hash 760284075, now seen corresponding path program 1 times [2024-11-13 12:44:46,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:46,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310697831] [2024-11-13 12:44:46,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:46,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:46,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:46,806 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 12:44:46,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:46,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310697831] [2024-11-13 12:44:46,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310697831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:46,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:44:46,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:44:46,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483361103] [2024-11-13 12:44:46,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:46,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:44:46,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:46,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:44:46,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:44:46,808 INFO L87 Difference]: Start difference. First operand 4001 states and 6425 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:44:46,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:44:46,973 INFO L93 Difference]: Finished difference Result 8645 states and 13179 transitions. [2024-11-13 12:44:46,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:44:46,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-13 12:44:46,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:44:47,000 INFO L225 Difference]: With dead ends: 8645 [2024-11-13 12:44:47,000 INFO L226 Difference]: Without dead ends: 6195 [2024-11-13 12:44:47,004 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 12:44:47,005 INFO L432 NwaCegarLoop]: 1618 mSDtfsCounter, 1503 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:44:47,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1711 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:44:47,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6195 states. [2024-11-13 12:44:47,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6195 to 6193. [2024-11-13 12:44:47,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6193 states, 6191 states have (on average 1.5365853658536586) internal successors, (9513), 6192 states have internal predecessors, (9513), 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 12:44:47,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6193 states to 6193 states and 9513 transitions. [2024-11-13 12:44:47,237 INFO L78 Accepts]: Start accepts. Automaton has 6193 states and 9513 transitions. Word has length 69 [2024-11-13 12:44:47,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:44:47,237 INFO L471 AbstractCegarLoop]: Abstraction has 6193 states and 9513 transitions. [2024-11-13 12:44:47,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:44:47,238 INFO L276 IsEmpty]: Start isEmpty. Operand 6193 states and 9513 transitions. [2024-11-13 12:44:47,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-13 12:44:47,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:44:47,239 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:44:47,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 12:44:47,239 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:44:47,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:47,240 INFO L85 PathProgramCache]: Analyzing trace with hash 323252678, now seen corresponding path program 1 times [2024-11-13 12:44:47,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:47,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773090586] [2024-11-13 12:44:47,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:47,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:47,323 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 12:44:47,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:47,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773090586] [2024-11-13 12:44:47,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773090586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:47,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:44:47,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:44:47,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339795552] [2024-11-13 12:44:47,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:47,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:44:47,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:47,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:44:47,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:44:47,326 INFO L87 Difference]: Start difference. First operand 6193 states and 9513 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:44:47,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:44:47,567 INFO L93 Difference]: Finished difference Result 11064 states and 16623 transitions. [2024-11-13 12:44:47,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:44:47,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-13 12:44:47,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:44:47,590 INFO L225 Difference]: With dead ends: 11064 [2024-11-13 12:44:47,590 INFO L226 Difference]: Without dead ends: 8437 [2024-11-13 12:44:47,595 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 12:44:47,596 INFO L432 NwaCegarLoop]: 1627 mSDtfsCounter, 1506 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:44:47,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1708 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:44:47,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8437 states. [2024-11-13 12:44:47,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8437 to 8435. [2024-11-13 12:44:47,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8435 states, 8433 states have (on average 1.503972489031187) internal successors, (12683), 8434 states have internal predecessors, (12683), 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 12:44:47,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8435 states to 8435 states and 12683 transitions. [2024-11-13 12:44:47,885 INFO L78 Accepts]: Start accepts. Automaton has 8435 states and 12683 transitions. Word has length 71 [2024-11-13 12:44:47,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:44:47,886 INFO L471 AbstractCegarLoop]: Abstraction has 8435 states and 12683 transitions. [2024-11-13 12:44:47,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:44:47,887 INFO L276 IsEmpty]: Start isEmpty. Operand 8435 states and 12683 transitions. [2024-11-13 12:44:47,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-13 12:44:47,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:44:47,891 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:44:47,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 12:44:47,891 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:44:47,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:47,891 INFO L85 PathProgramCache]: Analyzing trace with hash 660944004, now seen corresponding path program 1 times [2024-11-13 12:44:47,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:47,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550774707] [2024-11-13 12:44:47,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:47,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:48,214 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:44:48,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:48,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550774707] [2024-11-13 12:44:48,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550774707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:48,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:44:48,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:44:48,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718657334] [2024-11-13 12:44:48,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:48,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:44:48,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:48,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:44:48,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:44:48,216 INFO L87 Difference]: Start difference. First operand 8435 states and 12683 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 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 12:44:56,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:44:56,657 INFO L93 Difference]: Finished difference Result 12192 states and 19573 transitions. [2024-11-13 12:44:56,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:44:56,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 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 89 [2024-11-13 12:44:56,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:44:56,683 INFO L225 Difference]: With dead ends: 12192 [2024-11-13 12:44:56,684 INFO L226 Difference]: Without dead ends: 10688 [2024-11-13 12:44:56,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:44:56,690 INFO L432 NwaCegarLoop]: 820 mSDtfsCounter, 2411 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 4805 mSolverCounterSat, 1138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2411 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 5943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1138 IncrementalHoareTripleChecker+Valid, 4805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:44:56,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2411 Valid, 840 Invalid, 5943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1138 Valid, 4805 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-13 12:44:56,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10688 states. [2024-11-13 12:44:57,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10688 to 10688. [2024-11-13 12:44:57,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10688 states, 10686 states have (on average 1.4291596481377504) internal successors, (15272), 10687 states have internal predecessors, (15272), 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 12:44:57,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10688 states to 10688 states and 15272 transitions. [2024-11-13 12:44:57,233 INFO L78 Accepts]: Start accepts. Automaton has 10688 states and 15272 transitions. Word has length 89 [2024-11-13 12:44:57,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:44:57,234 INFO L471 AbstractCegarLoop]: Abstraction has 10688 states and 15272 transitions. [2024-11-13 12:44:57,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 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 12:44:57,234 INFO L276 IsEmpty]: Start isEmpty. Operand 10688 states and 15272 transitions. [2024-11-13 12:44:57,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-13 12:44:57,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:44:57,239 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:44:57,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 12:44:57,239 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:44:57,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:57,240 INFO L85 PathProgramCache]: Analyzing trace with hash -159144435, now seen corresponding path program 1 times [2024-11-13 12:44:57,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:57,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043282718] [2024-11-13 12:44:57,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:57,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:57,646 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 12:44:57,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:57,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043282718] [2024-11-13 12:44:57,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043282718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:57,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:44:57,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 12:44:57,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039943216] [2024-11-13 12:44:57,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:57,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 12:44:57,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:57,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 12:44:57,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:44:57,649 INFO L87 Difference]: Start difference. First operand 10688 states and 15272 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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 12:44:59,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:44:59,132 INFO L93 Difference]: Finished difference Result 53422 states and 76399 transitions. [2024-11-13 12:44:59,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 12:44:59,132 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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 90 [2024-11-13 12:44:59,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:44:59,256 INFO L225 Difference]: With dead ends: 53422 [2024-11-13 12:44:59,256 INFO L226 Difference]: Without dead ends: 46540 [2024-11-13 12:44:59,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-13 12:44:59,270 INFO L432 NwaCegarLoop]: 1642 mSDtfsCounter, 8115 mSDsluCounter, 2320 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8115 SdHoareTripleChecker+Valid, 3962 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:44:59,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8115 Valid, 3962 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 12:44:59,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46540 states. [2024-11-13 12:45:00,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46540 to 17568. [2024-11-13 12:45:00,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17568 states, 17566 states have (on average 1.4250256176704998) internal successors, (25032), 17567 states have internal predecessors, (25032), 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 12:45:00,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17568 states to 17568 states and 25032 transitions. [2024-11-13 12:45:00,224 INFO L78 Accepts]: Start accepts. Automaton has 17568 states and 25032 transitions. Word has length 90 [2024-11-13 12:45:00,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:45:00,225 INFO L471 AbstractCegarLoop]: Abstraction has 17568 states and 25032 transitions. [2024-11-13 12:45:00,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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 12:45:00,226 INFO L276 IsEmpty]: Start isEmpty. Operand 17568 states and 25032 transitions. [2024-11-13 12:45:00,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-13 12:45:00,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:45:00,231 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:45:00,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 12:45:00,231 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:45:00,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:45:00,232 INFO L85 PathProgramCache]: Analyzing trace with hash 104711949, now seen corresponding path program 1 times [2024-11-13 12:45:00,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:45:00,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147161896] [2024-11-13 12:45:00,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:00,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:45:00,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:00,606 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 12:45:00,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:45:00,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147161896] [2024-11-13 12:45:00,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147161896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:45:00,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:45:00,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 12:45:00,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095587403] [2024-11-13 12:45:00,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:45:00,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 12:45:00,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:45:00,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 12:45:00,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:45:00,608 INFO L87 Difference]: Start difference. First operand 17568 states and 25032 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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 12:45:02,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:45:02,061 INFO L93 Difference]: Finished difference Result 60302 states and 86159 transitions. [2024-11-13 12:45:02,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 12:45:02,062 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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 90 [2024-11-13 12:45:02,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:45:02,196 INFO L225 Difference]: With dead ends: 60302 [2024-11-13 12:45:02,196 INFO L226 Difference]: Without dead ends: 53420 [2024-11-13 12:45:02,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-13 12:45:02,211 INFO L432 NwaCegarLoop]: 1639 mSDtfsCounter, 8161 mSDsluCounter, 2213 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8161 SdHoareTripleChecker+Valid, 3852 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:45:02,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8161 Valid, 3852 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 12:45:02,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53420 states. [2024-11-13 12:45:03,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53420 to 27904. [2024-11-13 12:45:03,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27904 states, 27902 states have (on average 1.4189663823381837) internal successors, (39592), 27903 states have internal predecessors, (39592), 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 12:45:03,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27904 states to 27904 states and 39592 transitions. [2024-11-13 12:45:03,513 INFO L78 Accepts]: Start accepts. Automaton has 27904 states and 39592 transitions. Word has length 90 [2024-11-13 12:45:03,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:45:03,514 INFO L471 AbstractCegarLoop]: Abstraction has 27904 states and 39592 transitions. [2024-11-13 12:45:03,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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 12:45:03,514 INFO L276 IsEmpty]: Start isEmpty. Operand 27904 states and 39592 transitions. [2024-11-13 12:45:03,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-13 12:45:03,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:45:03,520 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:45:03,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 12:45:03,520 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:45:03,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:45:03,521 INFO L85 PathProgramCache]: Analyzing trace with hash -872494835, now seen corresponding path program 1 times [2024-11-13 12:45:03,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:45:03,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394538295] [2024-11-13 12:45:03,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:03,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:45:03,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:03,917 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 12:45:03,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:45:03,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394538295] [2024-11-13 12:45:03,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394538295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:45:03,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:45:03,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 12:45:03,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061461755] [2024-11-13 12:45:03,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:45:03,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 12:45:03,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:45:03,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 12:45:03,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:45:03,920 INFO L87 Difference]: Start difference. First operand 27904 states and 39592 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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 12:45:05,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:45:05,623 INFO L93 Difference]: Finished difference Result 67182 states and 95919 transitions. [2024-11-13 12:45:05,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 12:45:05,624 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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 90 [2024-11-13 12:45:05,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:45:05,788 INFO L225 Difference]: With dead ends: 67182 [2024-11-13 12:45:05,788 INFO L226 Difference]: Without dead ends: 60300 [2024-11-13 12:45:05,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-13 12:45:05,806 INFO L432 NwaCegarLoop]: 1636 mSDtfsCounter, 8238 mSDsluCounter, 2206 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8238 SdHoareTripleChecker+Valid, 3842 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:45:05,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8238 Valid, 3842 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 12:45:05,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60300 states. [2024-11-13 12:45:07,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60300 to 34784. [2024-11-13 12:45:07,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34784 states, 34782 states have (on average 1.4188948306595366) internal successors, (49352), 34783 states have internal predecessors, (49352), 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 12:45:07,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34784 states to 34784 states and 49352 transitions. [2024-11-13 12:45:07,221 INFO L78 Accepts]: Start accepts. Automaton has 34784 states and 49352 transitions. Word has length 90 [2024-11-13 12:45:07,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:45:07,222 INFO L471 AbstractCegarLoop]: Abstraction has 34784 states and 49352 transitions. [2024-11-13 12:45:07,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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 12:45:07,222 INFO L276 IsEmpty]: Start isEmpty. Operand 34784 states and 49352 transitions. [2024-11-13 12:45:07,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-13 12:45:07,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:45:07,227 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:45:07,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 12:45:07,227 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:45:07,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:45:07,228 INFO L85 PathProgramCache]: Analyzing trace with hash 908438029, now seen corresponding path program 1 times [2024-11-13 12:45:07,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:45:07,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512383554] [2024-11-13 12:45:07,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:07,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:45:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:07,473 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 12:45:07,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:45:07,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512383554] [2024-11-13 12:45:07,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512383554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:45:07,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:45:07,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 12:45:07,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735569305] [2024-11-13 12:45:07,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:45:07,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 12:45:07,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:45:07,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 12:45:07,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:45:07,475 INFO L87 Difference]: Start difference. First operand 34784 states and 49352 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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 12:45:09,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:45:09,541 INFO L93 Difference]: Finished difference Result 74062 states and 105679 transitions. [2024-11-13 12:45:09,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 12:45:09,542 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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 90 [2024-11-13 12:45:09,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:45:09,655 INFO L225 Difference]: With dead ends: 74062 [2024-11-13 12:45:09,655 INFO L226 Difference]: Without dead ends: 67180 [2024-11-13 12:45:09,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-13 12:45:09,676 INFO L432 NwaCegarLoop]: 1637 mSDtfsCounter, 8146 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8146 SdHoareTripleChecker+Valid, 3889 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:45:09,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8146 Valid, 3889 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 12:45:09,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67180 states. [2024-11-13 12:45:11,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67180 to 41664. [2024-11-13 12:45:11,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41664 states, 41662 states have (on average 1.4188469108540156) internal successors, (59112), 41663 states have internal predecessors, (59112), 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 12:45:11,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41664 states to 41664 states and 59112 transitions. [2024-11-13 12:45:11,855 INFO L78 Accepts]: Start accepts. Automaton has 41664 states and 59112 transitions. Word has length 90 [2024-11-13 12:45:11,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:45:11,856 INFO L471 AbstractCegarLoop]: Abstraction has 41664 states and 59112 transitions. [2024-11-13 12:45:11,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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 12:45:11,856 INFO L276 IsEmpty]: Start isEmpty. Operand 41664 states and 59112 transitions. [2024-11-13 12:45:11,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-13 12:45:11,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:45:11,862 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:45:11,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 12:45:11,863 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:45:11,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:45:11,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1342973965, now seen corresponding path program 1 times [2024-11-13 12:45:11,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:45:11,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934878606] [2024-11-13 12:45:11,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:11,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:45:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:12,194 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 12:45:12,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:45:12,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934878606] [2024-11-13 12:45:12,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934878606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:45:12,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:45:12,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 12:45:12,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508805391] [2024-11-13 12:45:12,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:45:12,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 12:45:12,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:45:12,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 12:45:12,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:45:12,198 INFO L87 Difference]: Start difference. First operand 41664 states and 59112 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 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 12:45:14,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:45:14,337 INFO L93 Difference]: Finished difference Result 80942 states and 115439 transitions. [2024-11-13 12:45:14,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 12:45:14,338 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 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 90 [2024-11-13 12:45:14,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:45:14,429 INFO L225 Difference]: With dead ends: 80942 [2024-11-13 12:45:14,429 INFO L226 Difference]: Without dead ends: 74060 [2024-11-13 12:45:14,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-13 12:45:14,449 INFO L432 NwaCegarLoop]: 1642 mSDtfsCounter, 8060 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8060 SdHoareTripleChecker+Valid, 3993 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 12:45:14,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8060 Valid, 3993 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 12:45:14,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74060 states. [2024-11-13 12:45:16,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74060 to 48544. [2024-11-13 12:45:16,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48544 states, 48542 states have (on average 1.4188125746775988) internal successors, (68872), 48543 states have internal predecessors, (68872), 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 12:45:16,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48544 states to 48544 states and 68872 transitions. [2024-11-13 12:45:16,152 INFO L78 Accepts]: Start accepts. Automaton has 48544 states and 68872 transitions. Word has length 90 [2024-11-13 12:45:16,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:45:16,153 INFO L471 AbstractCegarLoop]: Abstraction has 48544 states and 68872 transitions. [2024-11-13 12:45:16,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 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 12:45:16,153 INFO L276 IsEmpty]: Start isEmpty. Operand 48544 states and 68872 transitions. [2024-11-13 12:45:16,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-13 12:45:16,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:45:16,160 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:45:16,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 12:45:16,161 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:45:16,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:45:16,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1650174071, now seen corresponding path program 1 times [2024-11-13 12:45:16,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:45:16,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842807381] [2024-11-13 12:45:16,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:16,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:45:16,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:16,290 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 12:45:16,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:45:16,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842807381] [2024-11-13 12:45:16,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842807381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:45:16,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:45:16,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:45:16,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840455854] [2024-11-13 12:45:16,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:45:16,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:45:16,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:45:16,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:45:16,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:45:16,292 INFO L87 Difference]: Start difference. First operand 48544 states and 68872 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:45:22,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:45:22,148 INFO L93 Difference]: Finished difference Result 53052 states and 76255 transitions. [2024-11-13 12:45:22,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:45:22,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-13 12:45:22,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:45:22,206 INFO L225 Difference]: With dead ends: 53052 [2024-11-13 12:45:22,206 INFO L226 Difference]: Without dead ends: 50046 [2024-11-13 12:45:22,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 12:45:22,214 INFO L432 NwaCegarLoop]: 593 mSDtfsCounter, 851 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:45:22,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 600 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-13 12:45:22,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50046 states. [2024-11-13 12:45:23,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50046 to 50046. [2024-11-13 12:45:23,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50046 states, 50044 states have (on average 1.4146351210934378) internal successors, (70794), 50045 states have internal predecessors, (70794), 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 12:45:23,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50046 states to 50046 states and 70794 transitions. [2024-11-13 12:45:23,390 INFO L78 Accepts]: Start accepts. Automaton has 50046 states and 70794 transitions. Word has length 91 [2024-11-13 12:45:23,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:45:23,390 INFO L471 AbstractCegarLoop]: Abstraction has 50046 states and 70794 transitions. [2024-11-13 12:45:23,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:45:23,391 INFO L276 IsEmpty]: Start isEmpty. Operand 50046 states and 70794 transitions. [2024-11-13 12:45:23,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-13 12:45:23,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:45:23,395 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:45:23,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 12:45:23,395 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:45:23,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:45:23,396 INFO L85 PathProgramCache]: Analyzing trace with hash 331820101, now seen corresponding path program 1 times [2024-11-13 12:45:23,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:45:23,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084793179] [2024-11-13 12:45:23,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:23,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:45:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:23,527 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:45:23,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:45:23,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084793179] [2024-11-13 12:45:23,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084793179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:45:23,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:45:23,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:45:23,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476503629] [2024-11-13 12:45:23,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:45:23,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:45:23,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:45:23,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:45:23,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:45:23,529 INFO L87 Difference]: Start difference. First operand 50046 states and 70794 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 12:45:24,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:45:24,887 INFO L93 Difference]: Finished difference Result 81688 states and 116163 transitions. [2024-11-13 12:45:24,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:45:24,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 92 [2024-11-13 12:45:24,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:45:24,924 INFO L225 Difference]: With dead ends: 81688 [2024-11-13 12:45:24,924 INFO L226 Difference]: Without dead ends: 36950 [2024-11-13 12:45:24,946 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 12:45:24,946 INFO L432 NwaCegarLoop]: 1613 mSDtfsCounter, 58 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:45:24,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3163 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:45:24,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36950 states. [2024-11-13 12:45:25,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36950 to 36948. [2024-11-13 12:45:25,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36948 states, 36946 states have (on average 1.4152546960428734) internal successors, (52288), 36947 states have internal predecessors, (52288), 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 12:45:25,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36948 states to 36948 states and 52288 transitions. [2024-11-13 12:45:25,750 INFO L78 Accepts]: Start accepts. Automaton has 36948 states and 52288 transitions. Word has length 92 [2024-11-13 12:45:25,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:45:25,750 INFO L471 AbstractCegarLoop]: Abstraction has 36948 states and 52288 transitions. [2024-11-13 12:45:25,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 12:45:25,751 INFO L276 IsEmpty]: Start isEmpty. Operand 36948 states and 52288 transitions. [2024-11-13 12:45:25,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-13 12:45:25,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:45:25,752 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:45:25,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 12:45:25,753 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:45:25,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:45:25,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1942488488, now seen corresponding path program 1 times [2024-11-13 12:45:25,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:45:25,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183476651] [2024-11-13 12:45:25,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:25,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:45:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:25,970 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 12:45:25,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:45:25,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183476651] [2024-11-13 12:45:25,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183476651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:45:25,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:45:25,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 12:45:25,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041388502] [2024-11-13 12:45:25,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:45:25,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 12:45:25,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:45:25,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 12:45:25,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:45:25,974 INFO L87 Difference]: Start difference. First operand 36948 states and 52288 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 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 12:45:27,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:45:27,992 INFO L93 Difference]: Finished difference Result 66146 states and 94151 transitions. [2024-11-13 12:45:27,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 12:45:27,993 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 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 92 [2024-11-13 12:45:27,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:45:28,066 INFO L225 Difference]: With dead ends: 66146 [2024-11-13 12:45:28,066 INFO L226 Difference]: Without dead ends: 61280 [2024-11-13 12:45:28,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-13 12:45:28,082 INFO L432 NwaCegarLoop]: 1634 mSDtfsCounter, 8125 mSDsluCounter, 2457 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8125 SdHoareTripleChecker+Valid, 4091 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:45:28,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8125 Valid, 4091 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 12:45:28,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61280 states. [2024-11-13 12:45:29,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61280 to 41812. [2024-11-13 12:45:29,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41812 states, 41810 states have (on average 1.415929203539823) internal successors, (59200), 41811 states have internal predecessors, (59200), 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 12:45:29,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41812 states to 41812 states and 59200 transitions. [2024-11-13 12:45:29,973 INFO L78 Accepts]: Start accepts. Automaton has 41812 states and 59200 transitions. Word has length 92 [2024-11-13 12:45:29,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:45:29,973 INFO L471 AbstractCegarLoop]: Abstraction has 41812 states and 59200 transitions. [2024-11-13 12:45:29,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 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 12:45:29,973 INFO L276 IsEmpty]: Start isEmpty. Operand 41812 states and 59200 transitions. [2024-11-13 12:45:29,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-13 12:45:29,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:45:29,977 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:45:29,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 12:45:29,978 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:45:29,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:45:29,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1668086888, now seen corresponding path program 1 times [2024-11-13 12:45:29,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:45:29,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991288463] [2024-11-13 12:45:29,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:29,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:45:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:30,153 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:45:30,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:45:30,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991288463] [2024-11-13 12:45:30,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991288463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:45:30,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:45:30,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:45:30,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245856586] [2024-11-13 12:45:30,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:45:30,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:45:30,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:45:30,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:45:30,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:45:30,155 INFO L87 Difference]: Start difference. First operand 41812 states and 59200 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 12:45:31,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:45:31,294 INFO L93 Difference]: Finished difference Result 60056 states and 85122 transitions. [2024-11-13 12:45:31,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:45:31,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 93 [2024-11-13 12:45:31,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:45:31,321 INFO L225 Difference]: With dead ends: 60056 [2024-11-13 12:45:31,321 INFO L226 Difference]: Without dead ends: 23574 [2024-11-13 12:45:31,340 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 12:45:31,342 INFO L432 NwaCegarLoop]: 1606 mSDtfsCounter, 53 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3148 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:45:31,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3148 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:45:31,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23574 states. [2024-11-13 12:45:32,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23574 to 23572. [2024-11-13 12:45:32,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23572 states, 23570 states have (on average 1.401781926177344) internal successors, (33040), 23571 states have internal predecessors, (33040), 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 12:45:32,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23572 states to 23572 states and 33040 transitions. [2024-11-13 12:45:32,102 INFO L78 Accepts]: Start accepts. Automaton has 23572 states and 33040 transitions. Word has length 93 [2024-11-13 12:45:32,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:45:32,102 INFO L471 AbstractCegarLoop]: Abstraction has 23572 states and 33040 transitions. [2024-11-13 12:45:32,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 12:45:32,102 INFO L276 IsEmpty]: Start isEmpty. Operand 23572 states and 33040 transitions. [2024-11-13 12:45:32,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-13 12:45:32,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:45:32,105 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:45:32,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 12:45:32,105 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:45:32,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:45:32,106 INFO L85 PathProgramCache]: Analyzing trace with hash -110826102, now seen corresponding path program 1 times [2024-11-13 12:45:32,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:45:32,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014655224] [2024-11-13 12:45:32,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:32,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:45:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:32,233 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:45:32,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:45:32,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014655224] [2024-11-13 12:45:32,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014655224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:45:32,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:45:32,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:45:32,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38581642] [2024-11-13 12:45:32,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:45:32,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:45:32,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:45:32,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:45:32,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:45:32,236 INFO L87 Difference]: Start difference. First operand 23572 states and 33040 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:45:32,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:45:32,613 INFO L93 Difference]: Finished difference Result 32696 states and 45882 transitions. [2024-11-13 12:45:32,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:45:32,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-13 12:45:32,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:45:32,632 INFO L225 Difference]: With dead ends: 32696 [2024-11-13 12:45:32,632 INFO L226 Difference]: Without dead ends: 14454 [2024-11-13 12:45:32,642 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 12:45:32,643 INFO L432 NwaCegarLoop]: 1599 mSDtfsCounter, 50 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:45:32,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3133 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:45:32,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14454 states. [2024-11-13 12:45:33,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14454 to 14452. [2024-11-13 12:45:33,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14452 states, 14450 states have (on average 1.3896193771626297) internal successors, (20080), 14451 states have internal predecessors, (20080), 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 12:45:33,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14452 states to 14452 states and 20080 transitions. [2024-11-13 12:45:33,043 INFO L78 Accepts]: Start accepts. Automaton has 14452 states and 20080 transitions. Word has length 95 [2024-11-13 12:45:33,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:45:33,044 INFO L471 AbstractCegarLoop]: Abstraction has 14452 states and 20080 transitions. [2024-11-13 12:45:33,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:45:33,044 INFO L276 IsEmpty]: Start isEmpty. Operand 14452 states and 20080 transitions. [2024-11-13 12:45:33,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-13 12:45:33,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:45:33,045 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:45:33,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-13 12:45:33,046 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:45:33,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:45:33,046 INFO L85 PathProgramCache]: Analyzing trace with hash 2142789116, now seen corresponding path program 1 times [2024-11-13 12:45:33,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:45:33,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017884499] [2024-11-13 12:45:33,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:33,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:45:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:33,170 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:45:33,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:45:33,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017884499] [2024-11-13 12:45:33,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017884499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:45:33,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:45:33,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:45:33,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950182459] [2024-11-13 12:45:33,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:45:33,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:45:33,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:45:33,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:45:33,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:45:33,172 INFO L87 Difference]: Start difference. First operand 14452 states and 20080 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 12:45:33,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:45:33,434 INFO L93 Difference]: Finished difference Result 19016 states and 26442 transitions. [2024-11-13 12:45:33,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:45:33,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 97 [2024-11-13 12:45:33,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:45:33,446 INFO L225 Difference]: With dead ends: 19016 [2024-11-13 12:45:33,446 INFO L226 Difference]: Without dead ends: 9894 [2024-11-13 12:45:33,453 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 12:45:33,453 INFO L432 NwaCegarLoop]: 1592 mSDtfsCounter, 47 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:45:33,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3118 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:45:33,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9894 states. [2024-11-13 12:45:33,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9894 to 9892. [2024-11-13 12:45:33,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9892 states, 9890 states have (on average 1.3811931243680486) internal successors, (13660), 9891 states have internal predecessors, (13660), 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 12:45:33,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9892 states to 9892 states and 13660 transitions. [2024-11-13 12:45:33,680 INFO L78 Accepts]: Start accepts. Automaton has 9892 states and 13660 transitions. Word has length 97 [2024-11-13 12:45:33,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:45:33,681 INFO L471 AbstractCegarLoop]: Abstraction has 9892 states and 13660 transitions. [2024-11-13 12:45:33,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 12:45:33,681 INFO L276 IsEmpty]: Start isEmpty. Operand 9892 states and 13660 transitions. [2024-11-13 12:45:33,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-13 12:45:33,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:45:33,682 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:45:33,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-13 12:45:33,682 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:45:33,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:45:33,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1125676270, now seen corresponding path program 1 times [2024-11-13 12:45:33,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:45:33,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607777316] [2024-11-13 12:45:33,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:33,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:45:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:33,791 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:45:33,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:45:33,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607777316] [2024-11-13 12:45:33,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607777316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:45:33,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:45:33,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:45:33,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456288399] [2024-11-13 12:45:33,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:45:33,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:45:33,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:45:33,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:45:33,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:45:33,792 INFO L87 Difference]: Start difference. First operand 9892 states and 13660 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 12:45:33,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:45:33,884 INFO L93 Difference]: Finished difference Result 12176 states and 16812 transitions. [2024-11-13 12:45:33,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:45:33,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 99 [2024-11-13 12:45:33,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:45:33,892 INFO L225 Difference]: With dead ends: 12176 [2024-11-13 12:45:33,892 INFO L226 Difference]: Without dead ends: 7614 [2024-11-13 12:45:33,895 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 12:45:33,895 INFO L432 NwaCegarLoop]: 1585 mSDtfsCounter, 44 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:45:33,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3103 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:45:33,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7614 states. [2024-11-13 12:45:33,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7614 to 7612. [2024-11-13 12:45:33,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7612 states, 7610 states have (on average 1.3771353482260185) internal successors, (10480), 7611 states have internal predecessors, (10480), 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 12:45:33,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7612 states to 7612 states and 10480 transitions. [2024-11-13 12:45:33,995 INFO L78 Accepts]: Start accepts. Automaton has 7612 states and 10480 transitions. Word has length 99 [2024-11-13 12:45:33,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:45:33,995 INFO L471 AbstractCegarLoop]: Abstraction has 7612 states and 10480 transitions. [2024-11-13 12:45:33,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 12:45:33,995 INFO L276 IsEmpty]: Start isEmpty. Operand 7612 states and 10480 transitions. [2024-11-13 12:45:33,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-13 12:45:33,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:45:33,996 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:45:33,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-13 12:45:33,996 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:45:33,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:45:33,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1987596896, now seen corresponding path program 1 times [2024-11-13 12:45:33,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:45:33,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859299881] [2024-11-13 12:45:33,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:33,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:45:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:34,094 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:45:34,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:45:34,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859299881] [2024-11-13 12:45:34,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859299881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:45:34,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:45:34,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:45:34,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451135715] [2024-11-13 12:45:34,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:45:34,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:45:34,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:45:34,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:45:34,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:45:34,096 INFO L87 Difference]: Start difference. First operand 7612 states and 10480 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:45:34,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:45:34,168 INFO L93 Difference]: Finished difference Result 8756 states and 12042 transitions. [2024-11-13 12:45:34,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:45:34,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-11-13 12:45:34,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:45:34,176 INFO L225 Difference]: With dead ends: 8756 [2024-11-13 12:45:34,176 INFO L226 Difference]: Without dead ends: 6474 [2024-11-13 12:45:34,178 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 12:45:34,178 INFO L432 NwaCegarLoop]: 1578 mSDtfsCounter, 41 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:45:34,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3088 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:45:34,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6474 states. [2024-11-13 12:45:34,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6474 to 6472. [2024-11-13 12:45:34,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6472 states, 6470 states have (on average 1.3763523956723338) internal successors, (8905), 6471 states have internal predecessors, (8905), 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 12:45:34,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6472 states to 6472 states and 8905 transitions. [2024-11-13 12:45:34,253 INFO L78 Accepts]: Start accepts. Automaton has 6472 states and 8905 transitions. Word has length 101 [2024-11-13 12:45:34,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:45:34,253 INFO L471 AbstractCegarLoop]: Abstraction has 6472 states and 8905 transitions. [2024-11-13 12:45:34,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:45:34,254 INFO L276 IsEmpty]: Start isEmpty. Operand 6472 states and 8905 transitions. [2024-11-13 12:45:34,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 12:45:34,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:45:34,254 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:45:34,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-13 12:45:34,255 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:45:34,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:45:34,255 INFO L85 PathProgramCache]: Analyzing trace with hash -567077294, now seen corresponding path program 1 times [2024-11-13 12:45:34,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:45:34,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918250072] [2024-11-13 12:45:34,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:34,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:45:34,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:35,406 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:45:35,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:45:35,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918250072] [2024-11-13 12:45:35,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918250072] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:45:35,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255255567] [2024-11-13 12:45:35,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:35,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:45:35,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:45:35,411 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:45:35,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 12:45:35,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:35,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 12:45:35,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:45:36,103 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 12:45:36,103 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:45:36,494 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 12:45:36,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255255567] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 12:45:36,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 12:45:36,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 4] total 19 [2024-11-13 12:45:36,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497816516] [2024-11-13 12:45:36,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 12:45:36,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-13 12:45:36,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:45:36,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 12:45:36,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-11-13 12:45:36,497 INFO L87 Difference]: Start difference. First operand 6472 states and 8905 transitions. Second operand has 19 states, 19 states have (on average 15.368421052631579) internal successors, (292), 19 states have internal predecessors, (292), 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 12:45:40,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:45:40,791 INFO L93 Difference]: Finished difference Result 15303 states and 20847 transitions. [2024-11-13 12:45:40,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-13 12:45:40,792 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.368421052631579) internal successors, (292), 19 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-13 12:45:40,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:45:40,811 INFO L225 Difference]: With dead ends: 15303 [2024-11-13 12:45:40,811 INFO L226 Difference]: Without dead ends: 14161 [2024-11-13 12:45:40,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1292 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=774, Invalid=3516, Unknown=0, NotChecked=0, Total=4290 [2024-11-13 12:45:40,818 INFO L432 NwaCegarLoop]: 1535 mSDtfsCounter, 12322 mSDsluCounter, 8039 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12322 SdHoareTripleChecker+Valid, 9574 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:45:40,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12322 Valid, 9574 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 12:45:40,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14161 states. [2024-11-13 12:45:41,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14161 to 14109. [2024-11-13 12:45:41,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14109 states, 14107 states have (on average 1.3336641383710215) internal successors, (18814), 14108 states have internal predecessors, (18814), 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 12:45:41,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14109 states to 14109 states and 18814 transitions. [2024-11-13 12:45:41,129 INFO L78 Accepts]: Start accepts. Automaton has 14109 states and 18814 transitions. Word has length 103 [2024-11-13 12:45:41,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:45:41,129 INFO L471 AbstractCegarLoop]: Abstraction has 14109 states and 18814 transitions. [2024-11-13 12:45:41,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.368421052631579) internal successors, (292), 19 states have internal predecessors, (292), 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 12:45:41,129 INFO L276 IsEmpty]: Start isEmpty. Operand 14109 states and 18814 transitions. [2024-11-13 12:45:41,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 12:45:41,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:45:41,130 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:45:41,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 12:45:41,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-13 12:45:41,331 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:45:41,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:45:41,332 INFO L85 PathProgramCache]: Analyzing trace with hash 598365208, now seen corresponding path program 1 times [2024-11-13 12:45:41,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:45:41,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826776348] [2024-11-13 12:45:41,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:41,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:45:41,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:42,771 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:45:42,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:45:42,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826776348] [2024-11-13 12:45:42,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826776348] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:45:42,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281438597] [2024-11-13 12:45:42,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:42,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:45:42,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:45:42,776 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:45:42,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 12:45:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:45:42,952 INFO L255 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 12:45:42,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:45:43,860 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:45:43,860 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:45:46,088 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:45:46,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281438597] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 12:45:46,088 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 12:45:46,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 13] total 34 [2024-11-13 12:45:46,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018668526] [2024-11-13 12:45:46,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 12:45:46,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-13 12:45:46,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:45:46,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-13 12:45:46,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=987, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 12:45:46,091 INFO L87 Difference]: Start difference. First operand 14109 states and 18814 transitions. Second operand has 34 states, 34 states have (on average 8.352941176470589) internal successors, (284), 34 states have internal predecessors, (284), 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 12:45:53,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:45:53,853 INFO L93 Difference]: Finished difference Result 49771 states and 65471 transitions. [2024-11-13 12:45:53,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-13 12:45:53,854 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 8.352941176470589) internal successors, (284), 34 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-13 12:45:53,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:45:53,891 INFO L225 Difference]: With dead ends: 49771 [2024-11-13 12:45:53,891 INFO L226 Difference]: Without dead ends: 41320 [2024-11-13 12:45:53,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1713 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1241, Invalid=5731, Unknown=0, NotChecked=0, Total=6972 [2024-11-13 12:45:53,903 INFO L432 NwaCegarLoop]: 1538 mSDtfsCounter, 19494 mSDsluCounter, 7411 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19494 SdHoareTripleChecker+Valid, 8949 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 12:45:53,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19494 Valid, 8949 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 12:45:53,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41320 states. [2024-11-13 12:45:55,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41320 to 40384. [2024-11-13 12:45:55,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40384 states, 40382 states have (on average 1.2945619335347431) internal successors, (52277), 40383 states have internal predecessors, (52277), 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 12:45:55,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40384 states to 40384 states and 52277 transitions. [2024-11-13 12:45:55,791 INFO L78 Accepts]: Start accepts. Automaton has 40384 states and 52277 transitions. Word has length 104 [2024-11-13 12:45:55,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:45:55,791 INFO L471 AbstractCegarLoop]: Abstraction has 40384 states and 52277 transitions. [2024-11-13 12:45:55,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 8.352941176470589) internal successors, (284), 34 states have internal predecessors, (284), 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 12:45:55,791 INFO L276 IsEmpty]: Start isEmpty. Operand 40384 states and 52277 transitions. [2024-11-13 12:45:55,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 12:45:55,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:45:55,794 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:45:55,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 12:45:55,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7463a0f7-77b4-4174-9d1a-6cfe0e6c1ca2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-13 12:45:55,994 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:45:55,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:45:55,995 INFO L85 PathProgramCache]: Analyzing trace with hash -599930856, now seen corresponding path program 1 times [2024-11-13 12:45:55,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:45:55,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916561701] [2024-11-13 12:45:55,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:45:55,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:45:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat