./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f4bcf6-6b8a-471e-a3c2-75253684486e/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f4bcf6-6b8a-471e-a3c2-75253684486e/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f4bcf6-6b8a-471e-a3c2-75253684486e/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f4bcf6-6b8a-471e-a3c2-75253684486e/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f4bcf6-6b8a-471e-a3c2-75253684486e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f4bcf6-6b8a-471e-a3c2-75253684486e/bin/uautomizer-verify-LYvppIcaGC --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 2046fa69fcebe8f4159e2d29632b696c65fee77505bcacf51c3fef7658ce336a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:00:53,805 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:00:53,894 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f4bcf6-6b8a-471e-a3c2-75253684486e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:00:53,901 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:00:53,901 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:00:53,946 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:00:53,946 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:00:53,947 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:00:53,947 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:00:53,947 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:00:53,947 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:00:53,949 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:00:53,949 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:00:53,949 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:00:53,950 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:00:53,951 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:00:53,951 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:00:53,951 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:00:53,951 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:00:53,951 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:00:53,952 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:00:53,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:00:53,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:00:53,952 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:00:53,952 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:00:53,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:00:53,953 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:00:53,953 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:00:53,953 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:00:53,953 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:00:53,953 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:00:53,953 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:00:53,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:00:53,954 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:00:53,955 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:00:53,955 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:00:53,955 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:00:53,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:00:53,955 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:00:53,955 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:00:53,955 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:00:53,955 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:00:53,956 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:00:53,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:00:53,956 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:00:53,956 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:00:53,956 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:00:53,956 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:00:53,956 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_03f4bcf6-6b8a-471e-a3c2-75253684486e/bin/uautomizer-verify-LYvppIcaGC 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 -> 2046fa69fcebe8f4159e2d29632b696c65fee77505bcacf51c3fef7658ce336a [2024-11-23 23:00:54,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:00:54,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:00:54,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:00:54,337 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:00:54,337 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:00:54,343 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f4bcf6-6b8a-471e-a3c2-75253684486e/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label02.c [2024-11-23 23:00:57,671 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f4bcf6-6b8a-471e-a3c2-75253684486e/bin/uautomizer-verify-LYvppIcaGC/data/a61c6275f/d0e8d4f5d4b548b5a2fde938bc02e44f/FLAG3964714d4 [2024-11-23 23:00:58,510 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:00:58,511 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f4bcf6-6b8a-471e-a3c2-75253684486e/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label02.c [2024-11-23 23:00:58,561 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f4bcf6-6b8a-471e-a3c2-75253684486e/bin/uautomizer-verify-LYvppIcaGC/data/a61c6275f/d0e8d4f5d4b548b5a2fde938bc02e44f/FLAG3964714d4 [2024-11-23 23:00:58,590 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f4bcf6-6b8a-471e-a3c2-75253684486e/bin/uautomizer-verify-LYvppIcaGC/data/a61c6275f/d0e8d4f5d4b548b5a2fde938bc02e44f [2024-11-23 23:00:58,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:00:58,597 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:00:58,601 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:00:58,602 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:00:58,608 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:00:58,609 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:00:58" (1/1) ... [2024-11-23 23:00:58,610 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b7025d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:58, skipping insertion in model container [2024-11-23 23:00:58,613 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:00:58" (1/1) ... [2024-11-23 23:00:58,768 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:00:59,264 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_03f4bcf6-6b8a-471e-a3c2-75253684486e/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label02.c[26860,26873] [2024-11-23 23:00:59,338 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_03f4bcf6-6b8a-471e-a3c2-75253684486e/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label02.c[34150,34163] [2024-11-23 23:01:00,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:01:00,344 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:01:00,424 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_03f4bcf6-6b8a-471e-a3c2-75253684486e/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label02.c[26860,26873] [2024-11-23 23:01:00,437 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_03f4bcf6-6b8a-471e-a3c2-75253684486e/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label02.c[34150,34163] [2024-11-23 23:01:01,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:01:01,085 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:01:01,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:01 WrapperNode [2024-11-23 23:01:01,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:01:01,089 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:01:01,089 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:01:01,089 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:01:01,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:01" (1/1) ... [2024-11-23 23:01:01,180 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:01" (1/1) ... [2024-11-23 23:01:01,706 INFO L138 Inliner]: procedures = 39, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5291 [2024-11-23 23:01:01,707 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:01:01,708 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:01:01,708 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:01:01,708 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:01:01,724 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:01" (1/1) ... [2024-11-23 23:01:01,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:01" (1/1) ... [2024-11-23 23:01:01,861 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:01" (1/1) ... [2024-11-23 23:01:02,222 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]. [2024-11-23 23:01:02,223 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:01" (1/1) ... [2024-11-23 23:01:02,223 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:01" (1/1) ... [2024-11-23 23:01:02,400 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:01" (1/1) ... [2024-11-23 23:01:02,421 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:01" (1/1) ... [2024-11-23 23:01:02,488 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:01" (1/1) ... [2024-11-23 23:01:02,544 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:01" (1/1) ... [2024-11-23 23:01:02,567 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:01" (1/1) ... [2024-11-23 23:01:02,683 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:01:02,686 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:01:02,686 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:01:02,687 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:01:02,688 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:01" (1/1) ... [2024-11-23 23:01:02,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:01:02,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f4bcf6-6b8a-471e-a3c2-75253684486e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:01:02,738 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f4bcf6-6b8a-471e-a3c2-75253684486e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:01:02,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f4bcf6-6b8a-471e-a3c2-75253684486e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:01:02,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:01:02,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:01:02,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:01:02,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:01:03,029 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:01:03,031 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:01:10,922 INFO L? ?]: Removed 759 outVars from TransFormulas that were not future-live. [2024-11-23 23:01:10,922 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:01:10,959 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:01:10,960 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-23 23:01:10,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:01:10 BoogieIcfgContainer [2024-11-23 23:01:10,961 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:01:10,963 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:01:10,963 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:01:10,970 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:01:10,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:00:58" (1/3) ... [2024-11-23 23:01:10,971 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54945ed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:01:10, skipping insertion in model container [2024-11-23 23:01:10,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:01" (2/3) ... [2024-11-23 23:01:10,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54945ed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:01:10, skipping insertion in model container [2024-11-23 23:01:10,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:01:10" (3/3) ... [2024-11-23 23:01:10,974 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label02.c [2024-11-23 23:01:10,994 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:01:10,997 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label02.c that has 1 procedures, 948 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-23 23:01:11,124 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:01:11,139 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;@3643afe2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:01:11,139 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-23 23:01:11,148 INFO L276 IsEmpty]: Start isEmpty. Operand has 948 states, 945 states have (on average 1.9026455026455027) internal successors, (1798), 947 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:11,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-23 23:01:11,158 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:11,159 INFO L218 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] [2024-11-23 23:01:11,160 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:11,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:11,167 INFO L85 PathProgramCache]: Analyzing trace with hash 607462501, now seen corresponding path program 1 times [2024-11-23 23:01:11,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:11,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231391724] [2024-11-23 23:01:11,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:11,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:11,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:11,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:11,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:11,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231391724] [2024-11-23 23:01:11,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231391724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:11,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:11,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:01:11,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024279234] [2024-11-23 23:01:11,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:11,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:01:11,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:11,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:01:11,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:01:11,683 INFO L87 Difference]: Start difference. First operand has 948 states, 945 states have (on average 1.9026455026455027) internal successors, (1798), 947 states have internal predecessors, (1798), 0 states have call successors, (0), 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 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:11,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:11,820 INFO L93 Difference]: Finished difference Result 1829 states and 3466 transitions. [2024-11-23 23:01:11,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:01:11,822 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2024-11-23 23:01:11,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:11,849 INFO L225 Difference]: With dead ends: 1829 [2024-11-23 23:01:11,850 INFO L226 Difference]: Without dead ends: 882 [2024-11-23 23:01:11,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:01:11,862 INFO L435 NwaCegarLoop]: 1732 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:01:11,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1732 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:01:11,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-11-23 23:01:11,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 882. [2024-11-23 23:01:11,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 880 states have (on average 1.8920454545454546) internal successors, (1665), 881 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:11,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1665 transitions. [2024-11-23 23:01:11,993 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1665 transitions. Word has length 31 [2024-11-23 23:01:11,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:11,997 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1665 transitions. [2024-11-23 23:01:11,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:11,998 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1665 transitions. [2024-11-23 23:01:11,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-23 23:01:11,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:12,000 INFO L218 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] [2024-11-23 23:01:12,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:01:12,000 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:12,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:12,003 INFO L85 PathProgramCache]: Analyzing trace with hash 748011111, now seen corresponding path program 1 times [2024-11-23 23:01:12,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:12,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735609163] [2024-11-23 23:01:12,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:12,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:12,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:12,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:12,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735609163] [2024-11-23 23:01:12,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735609163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:12,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:12,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:01:12,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712897725] [2024-11-23 23:01:12,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:12,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:01:12,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:12,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:01:12,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:01:12,475 INFO L87 Difference]: Start difference. First operand 882 states and 1665 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:12,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:12,699 INFO L93 Difference]: Finished difference Result 947 states and 1767 transitions. [2024-11-23 23:01:12,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:01:12,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2024-11-23 23:01:12,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:12,708 INFO L225 Difference]: With dead ends: 947 [2024-11-23 23:01:12,710 INFO L226 Difference]: Without dead ends: 882 [2024-11-23 23:01:12,711 INFO L434 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 [2024-11-23 23:01:12,712 INFO L435 NwaCegarLoop]: 1663 mSDtfsCounter, 0 mSDsluCounter, 4923 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6586 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:01:12,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6586 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:01:12,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-11-23 23:01:12,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 882. [2024-11-23 23:01:12,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 880 states have (on average 1.8227272727272728) internal successors, (1604), 881 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:12,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1604 transitions. [2024-11-23 23:01:12,769 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1604 transitions. Word has length 31 [2024-11-23 23:01:12,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:12,769 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1604 transitions. [2024-11-23 23:01:12,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:12,770 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1604 transitions. [2024-11-23 23:01:12,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-23 23:01:12,771 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:12,771 INFO L218 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] [2024-11-23 23:01:12,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:01:12,772 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:12,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:12,775 INFO L85 PathProgramCache]: Analyzing trace with hash -516855475, now seen corresponding path program 1 times [2024-11-23 23:01:12,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:12,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042139110] [2024-11-23 23:01:12,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:12,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:13,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:13,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:13,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042139110] [2024-11-23 23:01:13,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042139110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:13,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:13,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:01:13,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501214386] [2024-11-23 23:01:13,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:13,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:01:13,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:13,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:01:13,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:01:13,269 INFO L87 Difference]: Start difference. First operand 882 states and 1604 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:25,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:25,044 INFO L93 Difference]: Finished difference Result 3137 states and 5913 transitions. [2024-11-23 23:01:25,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:01:25,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-23 23:01:25,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:25,059 INFO L225 Difference]: With dead ends: 3137 [2024-11-23 23:01:25,059 INFO L226 Difference]: Without dead ends: 2384 [2024-11-23 23:01:25,061 INFO L434 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 [2024-11-23 23:01:25,062 INFO L435 NwaCegarLoop]: 858 mSDtfsCounter, 2505 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5518 mSolverCounterSat, 1100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2505 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 6618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1100 IncrementalHoareTripleChecker+Valid, 5518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:01:25,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2505 Valid, 876 Invalid, 6618 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1100 Valid, 5518 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2024-11-23 23:01:25,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2024-11-23 23:01:25,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 2384. [2024-11-23 23:01:25,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2384 states, 2382 states have (on average 1.5659109991603695) internal successors, (3730), 2383 states have internal predecessors, (3730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:25,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2384 states to 2384 states and 3730 transitions. [2024-11-23 23:01:25,186 INFO L78 Accepts]: Start accepts. Automaton has 2384 states and 3730 transitions. Word has length 63 [2024-11-23 23:01:25,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:25,187 INFO L471 AbstractCegarLoop]: Abstraction has 2384 states and 3730 transitions. [2024-11-23 23:01:25,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:25,188 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states and 3730 transitions. [2024-11-23 23:01:25,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-23 23:01:25,194 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:25,194 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:25,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:01:25,195 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:25,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:25,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1819257143, now seen corresponding path program 1 times [2024-11-23 23:01:25,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:25,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433207513] [2024-11-23 23:01:25,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:25,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:25,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:25,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:25,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:25,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433207513] [2024-11-23 23:01:25,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433207513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:25,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:25,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:01:25,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24052024] [2024-11-23 23:01:25,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:25,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:01:25,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:25,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:01:25,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:01:25,907 INFO L87 Difference]: Start difference. First operand 2384 states and 3730 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 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) [2024-11-23 23:01:26,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:26,831 INFO L93 Difference]: Finished difference Result 3360 states and 5298 transitions. [2024-11-23 23:01:26,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 23:01:26,832 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 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 91 [2024-11-23 23:01:26,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:26,855 INFO L225 Difference]: With dead ends: 3360 [2024-11-23 23:01:26,855 INFO L226 Difference]: Without dead ends: 3299 [2024-11-23 23:01:26,857 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-23 23:01:26,859 INFO L435 NwaCegarLoop]: 1600 mSDtfsCounter, 13470 mSDsluCounter, 4611 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13470 SdHoareTripleChecker+Valid, 6211 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:01:26,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13470 Valid, 6211 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:01:26,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states. [2024-11-23 23:01:26,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 2443. [2024-11-23 23:01:26,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2441 states have (on average 1.5669807455960671) internal successors, (3825), 2442 states have internal predecessors, (3825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:26,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3825 transitions. [2024-11-23 23:01:26,975 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3825 transitions. Word has length 91 [2024-11-23 23:01:26,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:26,977 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3825 transitions. [2024-11-23 23:01:26,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 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) [2024-11-23 23:01:26,977 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3825 transitions. [2024-11-23 23:01:26,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-23 23:01:26,983 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:26,983 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:26,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:01:26,984 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:26,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:26,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1161263545, now seen corresponding path program 1 times [2024-11-23 23:01:26,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:26,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532807922] [2024-11-23 23:01:26,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:26,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:27,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:27,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:27,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532807922] [2024-11-23 23:01:27,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532807922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:27,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:27,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:01:27,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656984732] [2024-11-23 23:01:27,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:27,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:01:27,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:27,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:01:27,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:01:27,306 INFO L87 Difference]: Start difference. First operand 2443 states and 3825 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) [2024-11-23 23:01:27,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:27,365 INFO L93 Difference]: Finished difference Result 2672 states and 4192 transitions. [2024-11-23 23:01:27,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:01:27,366 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 [2024-11-23 23:01:27,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:27,381 INFO L225 Difference]: With dead ends: 2672 [2024-11-23 23:01:27,382 INFO L226 Difference]: Without dead ends: 2552 [2024-11-23 23:01:27,383 INFO L434 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 [2024-11-23 23:01:27,384 INFO L435 NwaCegarLoop]: 1602 mSDtfsCounter, 1506 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:01:27,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1695 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:01:27,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2024-11-23 23:01:27,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2550. [2024-11-23 23:01:27,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 2548 states have (on average 1.5678963893249607) internal successors, (3995), 2549 states have internal predecessors, (3995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:27,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 3995 transitions. [2024-11-23 23:01:27,486 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 3995 transitions. Word has length 93 [2024-11-23 23:01:27,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:27,487 INFO L471 AbstractCegarLoop]: Abstraction has 2550 states and 3995 transitions. [2024-11-23 23:01:27,487 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) [2024-11-23 23:01:27,488 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 3995 transitions. [2024-11-23 23:01:27,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-23 23:01:27,489 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:27,489 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:27,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:01:27,490 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:27,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:27,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1094770033, now seen corresponding path program 1 times [2024-11-23 23:01:27,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:27,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629564543] [2024-11-23 23:01:27,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:27,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:28,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:28,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:28,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629564543] [2024-11-23 23:01:28,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629564543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:28,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:28,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:01:28,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608833404] [2024-11-23 23:01:28,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:28,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:01:28,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:28,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:01:28,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:01:28,530 INFO L87 Difference]: Start difference. First operand 2550 states and 3995 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-11-23 23:01:29,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:29,331 INFO L93 Difference]: Finished difference Result 2779 states and 4359 transitions. [2024-11-23 23:01:29,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:01:29,332 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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 [2024-11-23 23:01:29,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:29,345 INFO L225 Difference]: With dead ends: 2779 [2024-11-23 23:01:29,346 INFO L226 Difference]: Without dead ends: 2552 [2024-11-23 23:01:29,347 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:01:29,348 INFO L435 NwaCegarLoop]: 1594 mSDtfsCounter, 1590 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 2366 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:01:29,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 2366 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:01:29,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2024-11-23 23:01:29,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2550. [2024-11-23 23:01:29,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 2548 states have (on average 1.567111459968603) internal successors, (3993), 2549 states have internal predecessors, (3993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:29,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 3993 transitions. [2024-11-23 23:01:29,439 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 3993 transitions. Word has length 93 [2024-11-23 23:01:29,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:29,439 INFO L471 AbstractCegarLoop]: Abstraction has 2550 states and 3993 transitions. [2024-11-23 23:01:29,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-11-23 23:01:29,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 3993 transitions. [2024-11-23 23:01:29,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-23 23:01:29,441 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:29,442 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:29,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:01:29,442 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:29,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:29,443 INFO L85 PathProgramCache]: Analyzing trace with hash 7144525, now seen corresponding path program 1 times [2024-11-23 23:01:29,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:29,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606024801] [2024-11-23 23:01:29,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:29,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:29,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:29,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:29,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:29,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606024801] [2024-11-23 23:01:29,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606024801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:29,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:29,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:01:29,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77179926] [2024-11-23 23:01:29,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:29,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:01:29,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:29,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:01:29,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:01:29,960 INFO L87 Difference]: Start difference. First operand 2550 states and 3993 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:30,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:30,088 INFO L93 Difference]: Finished difference Result 2558 states and 4002 transitions. [2024-11-23 23:01:30,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:01:30,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-23 23:01:30,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:30,102 INFO L225 Difference]: With dead ends: 2558 [2024-11-23 23:01:30,102 INFO L226 Difference]: Without dead ends: 2556 [2024-11-23 23:01:30,104 INFO L434 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 [2024-11-23 23:01:30,106 INFO L435 NwaCegarLoop]: 1601 mSDtfsCounter, 0 mSDsluCounter, 4794 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6395 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:01:30,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6395 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:01:30,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2556 states. [2024-11-23 23:01:30,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2556 to 2556. [2024-11-23 23:01:30,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2556 states, 2554 states have (on average 1.5653876272513705) internal successors, (3998), 2555 states have internal predecessors, (3998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:30,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2556 states to 2556 states and 3998 transitions. [2024-11-23 23:01:30,194 INFO L78 Accepts]: Start accepts. Automaton has 2556 states and 3998 transitions. Word has length 94 [2024-11-23 23:01:30,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:30,195 INFO L471 AbstractCegarLoop]: Abstraction has 2556 states and 3998 transitions. [2024-11-23 23:01:30,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:30,195 INFO L276 IsEmpty]: Start isEmpty. Operand 2556 states and 3998 transitions. [2024-11-23 23:01:30,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 23:01:30,199 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:30,199 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:30,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:01:30,200 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:30,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:30,200 INFO L85 PathProgramCache]: Analyzing trace with hash 471923503, now seen corresponding path program 1 times [2024-11-23 23:01:30,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:30,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862701880] [2024-11-23 23:01:30,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:30,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:30,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:30,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:30,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:30,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862701880] [2024-11-23 23:01:30,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862701880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:30,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:30,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:01:30,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691526693] [2024-11-23 23:01:30,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:30,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:01:30,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:30,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:01:30,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:01:30,393 INFO L87 Difference]: Start difference. First operand 2556 states and 3998 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) [2024-11-23 23:01:30,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:30,458 INFO L93 Difference]: Finished difference Result 2803 states and 4384 transitions. [2024-11-23 23:01:30,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:01:30,459 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 [2024-11-23 23:01:30,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:30,471 INFO L225 Difference]: With dead ends: 2803 [2024-11-23 23:01:30,471 INFO L226 Difference]: Without dead ends: 2677 [2024-11-23 23:01:30,473 INFO L434 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 [2024-11-23 23:01:30,474 INFO L435 NwaCegarLoop]: 1686 mSDtfsCounter, 1526 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1785 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 [2024-11-23 23:01:30,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1785 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:01:30,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2024-11-23 23:01:30,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 2675. [2024-11-23 23:01:30,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2675 states, 2673 states have (on average 1.5645342312008979) internal successors, (4182), 2674 states have internal predecessors, (4182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:30,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2675 states to 2675 states and 4182 transitions. [2024-11-23 23:01:30,565 INFO L78 Accepts]: Start accepts. Automaton has 2675 states and 4182 transitions. Word has length 95 [2024-11-23 23:01:30,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:30,565 INFO L471 AbstractCegarLoop]: Abstraction has 2675 states and 4182 transitions. [2024-11-23 23:01:30,565 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) [2024-11-23 23:01:30,565 INFO L276 IsEmpty]: Start isEmpty. Operand 2675 states and 4182 transitions. [2024-11-23 23:01:30,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 23:01:30,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:30,571 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:30,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:01:30,571 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:30,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:30,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1510056913, now seen corresponding path program 1 times [2024-11-23 23:01:30,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:30,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813610543] [2024-11-23 23:01:30,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:30,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:30,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:30,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:30,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813610543] [2024-11-23 23:01:30,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813610543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:30,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:30,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:01:30,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809725299] [2024-11-23 23:01:30,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:30,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:01:30,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:30,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:01:30,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:01:30,737 INFO L87 Difference]: Start difference. First operand 2675 states and 4182 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) [2024-11-23 23:01:30,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:30,806 INFO L93 Difference]: Finished difference Result 3349 states and 5234 transitions. [2024-11-23 23:01:30,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:01:30,807 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 [2024-11-23 23:01:30,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:30,821 INFO L225 Difference]: With dead ends: 3349 [2024-11-23 23:01:30,821 INFO L226 Difference]: Without dead ends: 3000 [2024-11-23 23:01:30,823 INFO L434 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 [2024-11-23 23:01:30,825 INFO L435 NwaCegarLoop]: 1688 mSDtfsCounter, 1524 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1791 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 [2024-11-23 23:01:30,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:01:30,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2024-11-23 23:01:30,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 2998. [2024-11-23 23:01:30,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2998 states, 2996 states have (on average 1.5620827770360481) internal successors, (4680), 2997 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:30,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2998 states to 2998 states and 4680 transitions. [2024-11-23 23:01:30,929 INFO L78 Accepts]: Start accepts. Automaton has 2998 states and 4680 transitions. Word has length 95 [2024-11-23 23:01:30,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:30,930 INFO L471 AbstractCegarLoop]: Abstraction has 2998 states and 4680 transitions. [2024-11-23 23:01:30,930 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) [2024-11-23 23:01:30,930 INFO L276 IsEmpty]: Start isEmpty. Operand 2998 states and 4680 transitions. [2024-11-23 23:01:30,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 23:01:30,933 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:30,933 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:30,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:01:30,935 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:30,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:30,936 INFO L85 PathProgramCache]: Analyzing trace with hash 594927151, now seen corresponding path program 1 times [2024-11-23 23:01:30,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:30,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746272838] [2024-11-23 23:01:30,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:30,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:31,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:31,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:31,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746272838] [2024-11-23 23:01:31,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746272838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:31,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:31,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:01:31,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878599877] [2024-11-23 23:01:31,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:31,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:01:31,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:31,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:01:31,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:01:31,089 INFO L87 Difference]: Start difference. First operand 2998 states and 4680 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) [2024-11-23 23:01:31,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:31,165 INFO L93 Difference]: Finished difference Result 4294 states and 6686 transitions. [2024-11-23 23:01:31,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:01:31,166 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 [2024-11-23 23:01:31,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:31,183 INFO L225 Difference]: With dead ends: 4294 [2024-11-23 23:01:31,183 INFO L226 Difference]: Without dead ends: 3622 [2024-11-23 23:01:31,186 INFO L434 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 [2024-11-23 23:01:31,187 INFO L435 NwaCegarLoop]: 1676 mSDtfsCounter, 1520 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1787 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 [2024-11-23 23:01:31,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 1787 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:01:31,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2024-11-23 23:01:31,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3620. [2024-11-23 23:01:31,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3620 states, 3618 states have (on average 1.5555555555555556) internal successors, (5628), 3619 states have internal predecessors, (5628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:31,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 5628 transitions. [2024-11-23 23:01:31,320 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 5628 transitions. Word has length 95 [2024-11-23 23:01:31,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:31,320 INFO L471 AbstractCegarLoop]: Abstraction has 3620 states and 5628 transitions. [2024-11-23 23:01:31,320 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) [2024-11-23 23:01:31,321 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 5628 transitions. [2024-11-23 23:01:31,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 23:01:31,322 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:31,322 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:31,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:01:31,323 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:31,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:31,323 INFO L85 PathProgramCache]: Analyzing trace with hash 858783535, now seen corresponding path program 1 times [2024-11-23 23:01:31,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:31,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32223170] [2024-11-23 23:01:31,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:31,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:31,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:31,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:31,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32223170] [2024-11-23 23:01:31,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32223170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:31,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:31,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:01:31,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638019092] [2024-11-23 23:01:31,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:31,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:01:31,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:31,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:01:31,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:01:31,460 INFO L87 Difference]: Start difference. First operand 3620 states and 5628 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) [2024-11-23 23:01:31,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:31,566 INFO L93 Difference]: Finished difference Result 6112 states and 9446 transitions. [2024-11-23 23:01:31,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:01:31,566 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 [2024-11-23 23:01:31,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:31,593 INFO L225 Difference]: With dead ends: 6112 [2024-11-23 23:01:31,593 INFO L226 Difference]: Without dead ends: 4818 [2024-11-23 23:01:31,597 INFO L434 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 [2024-11-23 23:01:31,598 INFO L435 NwaCegarLoop]: 1674 mSDtfsCounter, 1518 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1789 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 [2024-11-23 23:01:31,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:01:31,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4818 states. [2024-11-23 23:01:31,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4818 to 4816. [2024-11-23 23:01:31,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4816 states, 4814 states have (on average 1.5429995845450768) internal successors, (7428), 4815 states have internal predecessors, (7428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:31,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4816 states to 4816 states and 7428 transitions. [2024-11-23 23:01:31,806 INFO L78 Accepts]: Start accepts. Automaton has 4816 states and 7428 transitions. Word has length 95 [2024-11-23 23:01:31,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:31,807 INFO L471 AbstractCegarLoop]: Abstraction has 4816 states and 7428 transitions. [2024-11-23 23:01:31,808 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) [2024-11-23 23:01:31,808 INFO L276 IsEmpty]: Start isEmpty. Operand 4816 states and 7428 transitions. [2024-11-23 23:01:31,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 23:01:31,810 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:31,810 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:31,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:01:31,810 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:31,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:31,811 INFO L85 PathProgramCache]: Analyzing trace with hash -118423249, now seen corresponding path program 1 times [2024-11-23 23:01:31,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:31,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371071712] [2024-11-23 23:01:31,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:31,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:32,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:32,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:32,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371071712] [2024-11-23 23:01:32,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371071712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:32,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:32,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:01:32,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235133179] [2024-11-23 23:01:32,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:32,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:01:32,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:32,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:01:32,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:01:32,057 INFO L87 Difference]: Start difference. First operand 4816 states and 7428 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) [2024-11-23 23:01:32,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:32,216 INFO L93 Difference]: Finished difference Result 9604 states and 14678 transitions. [2024-11-23 23:01:32,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:01:32,217 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 [2024-11-23 23:01:32,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:32,239 INFO L225 Difference]: With dead ends: 9604 [2024-11-23 23:01:32,239 INFO L226 Difference]: Without dead ends: 7114 [2024-11-23 23:01:32,244 INFO L434 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 [2024-11-23 23:01:32,246 INFO L435 NwaCegarLoop]: 1662 mSDtfsCounter, 1514 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1785 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 [2024-11-23 23:01:32,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1785 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:01:32,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7114 states. [2024-11-23 23:01:32,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7114 to 7112. [2024-11-23 23:01:32,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7112 states, 7110 states have (on average 1.5240506329113923) internal successors, (10836), 7111 states have internal predecessors, (10836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:32,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7112 states to 7112 states and 10836 transitions. [2024-11-23 23:01:32,523 INFO L78 Accepts]: Start accepts. Automaton has 7112 states and 10836 transitions. Word has length 95 [2024-11-23 23:01:32,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:32,524 INFO L471 AbstractCegarLoop]: Abstraction has 7112 states and 10836 transitions. [2024-11-23 23:01:32,524 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) [2024-11-23 23:01:32,524 INFO L276 IsEmpty]: Start isEmpty. Operand 7112 states and 10836 transitions. [2024-11-23 23:01:32,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 23:01:32,525 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:32,526 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:32,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:01:32,526 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:32,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:32,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1662509615, now seen corresponding path program 1 times [2024-11-23 23:01:32,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:32,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774442443] [2024-11-23 23:01:32,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:32,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:32,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:32,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:32,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774442443] [2024-11-23 23:01:32,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774442443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:32,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:32,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:01:32,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907068214] [2024-11-23 23:01:32,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:32,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:01:32,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:32,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:01:32,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:01:32,680 INFO L87 Difference]: Start difference. First operand 7112 states and 10836 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) [2024-11-23 23:01:32,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:32,951 INFO L93 Difference]: Finished difference Result 16300 states and 24566 transitions. [2024-11-23 23:01:32,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:01:32,951 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 [2024-11-23 23:01:32,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:32,989 INFO L225 Difference]: With dead ends: 16300 [2024-11-23 23:01:32,989 INFO L226 Difference]: Without dead ends: 11514 [2024-11-23 23:01:32,998 INFO L434 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 [2024-11-23 23:01:33,000 INFO L435 NwaCegarLoop]: 1660 mSDtfsCounter, 1512 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1787 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 [2024-11-23 23:01:33,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1787 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:01:33,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11514 states. [2024-11-23 23:01:33,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11514 to 11512. [2024-11-23 23:01:33,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11512 states, 11510 states have (on average 1.5002606429192007) internal successors, (17268), 11511 states have internal predecessors, (17268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:33,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11512 states to 11512 states and 17268 transitions. [2024-11-23 23:01:33,619 INFO L78 Accepts]: Start accepts. Automaton has 11512 states and 17268 transitions. Word has length 95 [2024-11-23 23:01:33,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:33,619 INFO L471 AbstractCegarLoop]: Abstraction has 11512 states and 17268 transitions. [2024-11-23 23:01:33,619 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) [2024-11-23 23:01:33,620 INFO L276 IsEmpty]: Start isEmpty. Operand 11512 states and 17268 transitions. [2024-11-23 23:01:33,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 23:01:33,621 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:33,621 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:33,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:01:33,621 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:33,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:33,622 INFO L85 PathProgramCache]: Analyzing trace with hash 2097045551, now seen corresponding path program 1 times [2024-11-23 23:01:33,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:33,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297463786] [2024-11-23 23:01:33,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:33,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:33,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:33,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:33,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:33,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297463786] [2024-11-23 23:01:33,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297463786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:33,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:33,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:01:33,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280961887] [2024-11-23 23:01:33,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:33,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:01:33,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:33,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:01:33,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:01:33,751 INFO L87 Difference]: Start difference. First operand 11512 states and 17268 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) [2024-11-23 23:01:34,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:34,224 INFO L93 Difference]: Finished difference Result 29116 states and 43190 transitions. [2024-11-23 23:01:34,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:01:34,225 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 [2024-11-23 23:01:34,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:34,290 INFO L225 Difference]: With dead ends: 29116 [2024-11-23 23:01:34,290 INFO L226 Difference]: Without dead ends: 19930 [2024-11-23 23:01:34,307 INFO L434 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 [2024-11-23 23:01:34,308 INFO L435 NwaCegarLoop]: 1672 mSDtfsCounter, 1516 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1791 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 [2024-11-23 23:01:34,308 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:01:34,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19930 states. [2024-11-23 23:01:35,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19930 to 19928. [2024-11-23 23:01:35,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19928 states, 19926 states have (on average 1.4736525143029209) internal successors, (29364), 19927 states have internal predecessors, (29364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:35,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19928 states to 19928 states and 29364 transitions. [2024-11-23 23:01:35,270 INFO L78 Accepts]: Start accepts. Automaton has 19928 states and 29364 transitions. Word has length 95 [2024-11-23 23:01:35,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:35,271 INFO L471 AbstractCegarLoop]: Abstraction has 19928 states and 29364 transitions. [2024-11-23 23:01:35,271 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) [2024-11-23 23:01:35,271 INFO L276 IsEmpty]: Start isEmpty. Operand 19928 states and 29364 transitions. [2024-11-23 23:01:35,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 23:01:35,273 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:35,273 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:35,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 23:01:35,273 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:35,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:35,274 INFO L85 PathProgramCache]: Analyzing trace with hash 432012591, now seen corresponding path program 1 times [2024-11-23 23:01:35,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:35,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293071246] [2024-11-23 23:01:35,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:35,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:35,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:35,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:35,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293071246] [2024-11-23 23:01:35,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293071246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:35,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:35,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:01:35,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642786774] [2024-11-23 23:01:35,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:35,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:01:35,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:35,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:01:35,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:01:35,414 INFO L87 Difference]: Start difference. First operand 19928 states and 29364 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) [2024-11-23 23:01:36,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:36,636 INFO L93 Difference]: Finished difference Result 53596 states and 78134 transitions. [2024-11-23 23:01:36,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:01:36,637 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 [2024-11-23 23:01:36,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:36,752 INFO L225 Difference]: With dead ends: 53596 [2024-11-23 23:01:36,753 INFO L226 Difference]: Without dead ends: 35994 [2024-11-23 23:01:36,785 INFO L434 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 [2024-11-23 23:01:36,786 INFO L435 NwaCegarLoop]: 1686 mSDtfsCounter, 1522 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 1793 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 [2024-11-23 23:01:36,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 1793 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:01:36,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35994 states. [2024-11-23 23:01:38,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35994 to 35992. [2024-11-23 23:01:38,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35992 states, 35990 states have (on average 1.4454015004167824) internal successors, (52020), 35991 states have internal predecessors, (52020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:38,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35992 states to 35992 states and 52020 transitions. [2024-11-23 23:01:38,532 INFO L78 Accepts]: Start accepts. Automaton has 35992 states and 52020 transitions. Word has length 95 [2024-11-23 23:01:38,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:38,532 INFO L471 AbstractCegarLoop]: Abstraction has 35992 states and 52020 transitions. [2024-11-23 23:01:38,532 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) [2024-11-23 23:01:38,532 INFO L276 IsEmpty]: Start isEmpty. Operand 35992 states and 52020 transitions. [2024-11-23 23:01:38,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-23 23:01:38,543 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:38,545 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:38,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 23:01:38,546 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:38,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:38,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1265201594, now seen corresponding path program 1 times [2024-11-23 23:01:38,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:38,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493522940] [2024-11-23 23:01:38,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:38,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:39,049 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 23:01:39,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:39,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493522940] [2024-11-23 23:01:39,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493522940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:39,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:39,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:01:39,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856610367] [2024-11-23 23:01:39,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:39,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:01:39,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:39,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:01:39,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:01:39,054 INFO L87 Difference]: Start difference. First operand 35992 states and 52020 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:45,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:45,018 INFO L93 Difference]: Finished difference Result 301994 states and 434109 transitions. [2024-11-23 23:01:45,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:01:45,019 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 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 121 [2024-11-23 23:01:45,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:45,863 INFO L225 Difference]: With dead ends: 301994 [2024-11-23 23:01:45,863 INFO L226 Difference]: Without dead ends: 278440 [2024-11-23 23:01:45,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:01:45,950 INFO L435 NwaCegarLoop]: 1701 mSDtfsCounter, 11802 mSDsluCounter, 3466 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11802 SdHoareTripleChecker+Valid, 5167 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:01:45,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11802 Valid, 5167 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:01:46,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278440 states. [2024-11-23 23:01:51,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278440 to 64664. [2024-11-23 23:01:51,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64664 states, 64662 states have (on average 1.4359592960316725) internal successors, (92852), 64663 states have internal predecessors, (92852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:51,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64664 states to 64664 states and 92852 transitions. [2024-11-23 23:01:51,310 INFO L78 Accepts]: Start accepts. Automaton has 64664 states and 92852 transitions. Word has length 121 [2024-11-23 23:01:51,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:51,313 INFO L471 AbstractCegarLoop]: Abstraction has 64664 states and 92852 transitions. [2024-11-23 23:01:51,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:51,313 INFO L276 IsEmpty]: Start isEmpty. Operand 64664 states and 92852 transitions. [2024-11-23 23:01:51,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-23 23:01:51,330 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:51,331 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:51,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 23:01:51,332 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:51,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:51,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1047785286, now seen corresponding path program 1 times [2024-11-23 23:01:51,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:51,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142193776] [2024-11-23 23:01:51,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:51,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:52,277 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-23 23:01:52,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:52,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142193776] [2024-11-23 23:01:52,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142193776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:52,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:52,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:01:52,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110390412] [2024-11-23 23:01:52,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:52,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:01:52,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:52,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:01:52,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:01:52,279 INFO L87 Difference]: Start difference. First operand 64664 states and 92852 transitions. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:02:00,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:00,300 INFO L93 Difference]: Finished difference Result 335658 states and 482237 transitions. [2024-11-23 23:02:00,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:02:00,301 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 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 121 [2024-11-23 23:02:00,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:00,726 INFO L225 Difference]: With dead ends: 335658 [2024-11-23 23:02:00,727 INFO L226 Difference]: Without dead ends: 301992 [2024-11-23 23:02:00,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:02:00,794 INFO L435 NwaCegarLoop]: 1700 mSDtfsCounter, 11804 mSDsluCounter, 3406 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11804 SdHoareTripleChecker+Valid, 5106 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:02:00,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11804 Valid, 5106 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:02:00,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301992 states. [2024-11-23 23:02:06,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301992 to 110104. [2024-11-23 23:02:06,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110104 states, 110102 states have (on average 1.4304190659570217) internal successors, (157492), 110103 states have internal predecessors, (157492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:02:06,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110104 states to 110104 states and 157492 transitions. [2024-11-23 23:02:06,476 INFO L78 Accepts]: Start accepts. Automaton has 110104 states and 157492 transitions. Word has length 121 [2024-11-23 23:02:06,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:06,476 INFO L471 AbstractCegarLoop]: Abstraction has 110104 states and 157492 transitions. [2024-11-23 23:02:06,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:02:06,477 INFO L276 IsEmpty]: Start isEmpty. Operand 110104 states and 157492 transitions. [2024-11-23 23:02:06,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-23 23:02:06,494 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:06,494 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:02:06,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 23:02:06,494 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:02:06,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:06,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1142197946, now seen corresponding path program 1 times [2024-11-23 23:02:06,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:06,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399286883] [2024-11-23 23:02:06,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:06,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:06,928 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-23 23:02:06,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:06,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399286883] [2024-11-23 23:02:06,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399286883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:06,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:02:06,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:02:06,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038198283] [2024-11-23 23:02:06,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:06,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:02:06,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:06,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:02:06,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:02:06,930 INFO L87 Difference]: Start difference. First operand 110104 states and 157492 transitions. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)