./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34d002a-c189-47d9-8bd4-53f18aa66f09/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34d002a-c189-47d9-8bd4-53f18aa66f09/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34d002a-c189-47d9-8bd4-53f18aa66f09/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34d002a-c189-47d9-8bd4-53f18aa66f09/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34d002a-c189-47d9-8bd4-53f18aa66f09/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34d002a-c189-47d9-8bd4-53f18aa66f09/bin/uautomizer-verify-jihMAELWvX --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 82629eca6c71a457570e41243c2aaef9825ffa804906408a105aaa7b8cd16d36 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:34:52,962 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:34:53,044 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34d002a-c189-47d9-8bd4-53f18aa66f09/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:34:53,049 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:34:53,049 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:34:53,073 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:34:53,074 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:34:53,074 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:34:53,075 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:34:53,076 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:34:53,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:34:53,077 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:34:53,077 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:34:53,078 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:34:53,078 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:34:53,079 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:34:53,079 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:34:53,080 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:34:53,080 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:34:53,080 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:34:53,081 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:34:53,082 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:34:53,082 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:34:53,082 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:34:53,083 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:34:53,083 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:34:53,084 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:34:53,084 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:34:53,084 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:34:53,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:34:53,085 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:34:53,086 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:34:53,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:34:53,086 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:34:53,087 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:34:53,087 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:34:53,088 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:34:53,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:34:53,088 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:34:53,089 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:34:53,089 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:34:53,090 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:34:53,090 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34d002a-c189-47d9-8bd4-53f18aa66f09/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34d002a-c189-47d9-8bd4-53f18aa66f09/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82629eca6c71a457570e41243c2aaef9825ffa804906408a105aaa7b8cd16d36 [2024-11-08 17:34:53,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:34:53,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:34:53,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:34:53,396 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:34:53,397 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:34:53,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34d002a-c189-47d9-8bd4-53f18aa66f09/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label04.c Unable to find full path for "g++" [2024-11-08 17:34:55,499 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:34:56,039 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:34:56,042 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34d002a-c189-47d9-8bd4-53f18aa66f09/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-11-08 17:34:56,077 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34d002a-c189-47d9-8bd4-53f18aa66f09/bin/uautomizer-verify-jihMAELWvX/data/d1de9527c/58e79e835b8a4a38a460a499a7c27af5/FLAG8cba88709 [2024-11-08 17:34:56,099 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34d002a-c189-47d9-8bd4-53f18aa66f09/bin/uautomizer-verify-jihMAELWvX/data/d1de9527c/58e79e835b8a4a38a460a499a7c27af5 [2024-11-08 17:34:56,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:34:56,104 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:34:56,105 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:34:56,106 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:34:56,113 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:34:56,114 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:34:56" (1/1) ... [2024-11-08 17:34:56,115 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ea1f699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:56, skipping insertion in model container [2024-11-08 17:34:56,115 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:34:56" (1/1) ... [2024-11-08 17:34:56,272 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:34:56,805 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_c34d002a-c189-47d9-8bd4-53f18aa66f09/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label04.c[26888,26901] [2024-11-08 17:34:56,898 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_c34d002a-c189-47d9-8bd4-53f18aa66f09/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label04.c[33949,33962] [2024-11-08 17:34:57,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:34:57,838 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:34:57,914 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_c34d002a-c189-47d9-8bd4-53f18aa66f09/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label04.c[26888,26901] [2024-11-08 17:34:57,934 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_c34d002a-c189-47d9-8bd4-53f18aa66f09/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label04.c[33949,33962] [2024-11-08 17:34:58,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:34:58,550 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:34:58,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:58 WrapperNode [2024-11-08 17:34:58,551 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:34:58,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:34:58,552 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:34:58,552 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:34:58,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:58" (1/1) ... [2024-11-08 17:34:58,621 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:58" (1/1) ... [2024-11-08 17:34:59,022 INFO L138 Inliner]: procedures = 40, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5289 [2024-11-08 17:34:59,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:34:59,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:34:59,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:34:59,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:34:59,035 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:58" (1/1) ... [2024-11-08 17:34:59,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:58" (1/1) ... [2024-11-08 17:34:59,145 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:58" (1/1) ... [2024-11-08 17:34:59,295 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]. [2024-11-08 17:34:59,296 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:58" (1/1) ... [2024-11-08 17:34:59,297 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:58" (1/1) ... [2024-11-08 17:34:59,436 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:58" (1/1) ... [2024-11-08 17:34:59,473 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:58" (1/1) ... [2024-11-08 17:34:59,493 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:58" (1/1) ... [2024-11-08 17:34:59,508 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:58" (1/1) ... [2024-11-08 17:34:59,579 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:34:59,581 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:34:59,582 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:34:59,582 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:34:59,583 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:58" (1/1) ... [2024-11-08 17:34:59,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:34:59,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34d002a-c189-47d9-8bd4-53f18aa66f09/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:34:59,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34d002a-c189-47d9-8bd4-53f18aa66f09/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:34:59,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34d002a-c189-47d9-8bd4-53f18aa66f09/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:34:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:34:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:34:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:34:59,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:34:59,899 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:34:59,904 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:35:05,914 INFO L? ?]: Removed 759 outVars from TransFormulas that were not future-live. [2024-11-08 17:35:05,914 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:35:05,952 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:35:05,952 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 17:35:05,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:35:05 BoogieIcfgContainer [2024-11-08 17:35:05,953 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:35:05,959 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:35:05,959 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:35:05,963 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:35:05,963 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:34:56" (1/3) ... [2024-11-08 17:35:05,964 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd4fb80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:35:05, skipping insertion in model container [2024-11-08 17:35:05,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:58" (2/3) ... [2024-11-08 17:35:05,965 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd4fb80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:35:05, skipping insertion in model container [2024-11-08 17:35:05,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:35:05" (3/3) ... [2024-11-08 17:35:05,967 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-11-08 17:35:05,989 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:35:05,989 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 17:35:06,122 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:35:06,132 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;@517aded0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:35:06,132 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 17:35:06,142 INFO L276 IsEmpty]: Start isEmpty. Operand has 949 states, 946 states have (on average 1.9027484143763214) internal successors, (1800), 948 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:06,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 17:35:06,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:06,152 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:06,152 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:06,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:06,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1569880149, now seen corresponding path program 1 times [2024-11-08 17:35:06,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:06,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215624864] [2024-11-08 17:35:06,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:06,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:06,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:06,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:06,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215624864] [2024-11-08 17:35:06,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215624864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:06,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:06,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:35:06,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002468960] [2024-11-08 17:35:06,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:06,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:35:06,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:06,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:35:06,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:35:06,699 INFO L87 Difference]: Start difference. First operand has 949 states, 946 states have (on average 1.9027484143763214) internal successors, (1800), 948 states have internal predecessors, (1800), 0 states have call successors, (0), 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 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:06,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:06,815 INFO L93 Difference]: Finished difference Result 1829 states and 3468 transitions. [2024-11-08 17:35:06,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:35:06,818 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2024-11-08 17:35:06,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:06,838 INFO L225 Difference]: With dead ends: 1829 [2024-11-08 17:35:06,838 INFO L226 Difference]: Without dead ends: 883 [2024-11-08 17:35:06,844 INFO L431 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 [2024-11-08 17:35:06,848 INFO L432 NwaCegarLoop]: 1731 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, 1731 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 [2024-11-08 17:35:06,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:06,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-11-08 17:35:06,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2024-11-08 17:35:06,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 881 states have (on average 1.8921679909194098) internal successors, (1667), 882 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:06,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1667 transitions. [2024-11-08 17:35:06,941 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1667 transitions. Word has length 30 [2024-11-08 17:35:06,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:06,942 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1667 transitions. [2024-11-08 17:35:06,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:06,942 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1667 transitions. [2024-11-08 17:35:06,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 17:35:06,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:06,944 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:06,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:35:06,945 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:06,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:06,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1435866643, now seen corresponding path program 1 times [2024-11-08 17:35:06,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:06,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202628817] [2024-11-08 17:35:06,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:06,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:07,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:07,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:07,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202628817] [2024-11-08 17:35:07,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202628817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:07,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:07,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:35:07,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921882903] [2024-11-08 17:35:07,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:07,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:35:07,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:07,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:35:07,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:35:07,302 INFO L87 Difference]: Start difference. First operand 883 states and 1667 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:07,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:07,506 INFO L93 Difference]: Finished difference Result 949 states and 1771 transitions. [2024-11-08 17:35:07,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:35:07,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2024-11-08 17:35:07,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:07,513 INFO L225 Difference]: With dead ends: 949 [2024-11-08 17:35:07,513 INFO L226 Difference]: Without dead ends: 883 [2024-11-08 17:35:07,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:35:07,515 INFO L432 NwaCegarLoop]: 1665 mSDtfsCounter, 0 mSDsluCounter, 4929 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6594 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 [2024-11-08 17:35:07,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6594 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:35:07,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-11-08 17:35:07,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2024-11-08 17:35:07,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 881 states have (on average 1.8229284903518728) internal successors, (1606), 882 states have internal predecessors, (1606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:07,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1606 transitions. [2024-11-08 17:35:07,567 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1606 transitions. Word has length 30 [2024-11-08 17:35:07,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:07,568 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1606 transitions. [2024-11-08 17:35:07,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:07,568 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1606 transitions. [2024-11-08 17:35:07,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-08 17:35:07,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:07,572 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:07,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:35:07,573 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:07,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:07,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1609747830, now seen corresponding path program 1 times [2024-11-08 17:35:07,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:07,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845787314] [2024-11-08 17:35:07,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:07,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:07,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:07,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:07,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:07,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845787314] [2024-11-08 17:35:07,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845787314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:07,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:07,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:07,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842702982] [2024-11-08 17:35:07,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:07,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:35:07,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:07,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:35:07,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:35:07,934 INFO L87 Difference]: Start difference. First operand 883 states and 1606 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:16,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:16,021 INFO L93 Difference]: Finished difference Result 3138 states and 5915 transitions. [2024-11-08 17:35:16,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:35:16,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-08 17:35:16,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:16,031 INFO L225 Difference]: With dead ends: 3138 [2024-11-08 17:35:16,031 INFO L226 Difference]: Without dead ends: 2385 [2024-11-08 17:35:16,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:35:16,034 INFO L432 NwaCegarLoop]: 842 mSDtfsCounter, 2525 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5354 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2525 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 6507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:16,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2525 Valid, 860 Invalid, 6507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5354 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2024-11-08 17:35:16,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2024-11-08 17:35:16,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 2385. [2024-11-08 17:35:16,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2385 states, 2383 states have (on average 1.56105749055812) internal successors, (3720), 2384 states have internal predecessors, (3720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:16,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 3720 transitions. [2024-11-08 17:35:16,096 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 3720 transitions. Word has length 61 [2024-11-08 17:35:16,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:16,096 INFO L471 AbstractCegarLoop]: Abstraction has 2385 states and 3720 transitions. [2024-11-08 17:35:16,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:16,097 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 3720 transitions. [2024-11-08 17:35:16,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 17:35:16,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:16,100 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:16,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:35:16,100 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:16,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:16,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1886064963, now seen corresponding path program 1 times [2024-11-08 17:35:16,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:16,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127518098] [2024-11-08 17:35:16,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:16,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:16,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:16,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:16,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127518098] [2024-11-08 17:35:16,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127518098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:16,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:16,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:35:16,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192420485] [2024-11-08 17:35:16,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:16,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:35:16,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:16,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:35:16,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:35:16,610 INFO L87 Difference]: Start difference. First operand 2385 states and 3720 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:17,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:17,304 INFO L93 Difference]: Finished difference Result 3377 states and 5320 transitions. [2024-11-08 17:35:17,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 17:35:17,304 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-08 17:35:17,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:17,316 INFO L225 Difference]: With dead ends: 3377 [2024-11-08 17:35:17,316 INFO L226 Difference]: Without dead ends: 3315 [2024-11-08 17:35:17,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-08 17:35:17,324 INFO L432 NwaCegarLoop]: 1600 mSDtfsCounter, 13495 mSDsluCounter, 4051 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13495 SdHoareTripleChecker+Valid, 5651 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:17,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13495 Valid, 5651 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 17:35:17,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3315 states. [2024-11-08 17:35:17,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3315 to 2445. [2024-11-08 17:35:17,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2445 states, 2443 states have (on average 1.5624232501023332) internal successors, (3817), 2444 states have internal predecessors, (3817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:17,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2445 states to 2445 states and 3817 transitions. [2024-11-08 17:35:17,448 INFO L78 Accepts]: Start accepts. Automaton has 2445 states and 3817 transitions. Word has length 90 [2024-11-08 17:35:17,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:17,448 INFO L471 AbstractCegarLoop]: Abstraction has 2445 states and 3817 transitions. [2024-11-08 17:35:17,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:17,449 INFO L276 IsEmpty]: Start isEmpty. Operand 2445 states and 3817 transitions. [2024-11-08 17:35:17,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 17:35:17,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:17,452 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:17,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:35:17,453 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:17,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:17,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1383457805, now seen corresponding path program 1 times [2024-11-08 17:35:17,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:17,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99006514] [2024-11-08 17:35:17,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:17,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:17,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:17,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:17,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99006514] [2024-11-08 17:35:17,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99006514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:17,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:17,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:17,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075886929] [2024-11-08 17:35:17,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:17,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:17,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:17,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:17,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:17,713 INFO L87 Difference]: Start difference. First operand 2445 states and 3817 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:17,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:17,783 INFO L93 Difference]: Finished difference Result 2678 states and 4192 transitions. [2024-11-08 17:35:17,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:17,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-08 17:35:17,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:17,797 INFO L225 Difference]: With dead ends: 2678 [2024-11-08 17:35:17,797 INFO L226 Difference]: Without dead ends: 2556 [2024-11-08 17:35:17,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:17,801 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 1508 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:17,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1695 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:17,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2556 states. [2024-11-08 17:35:17,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2556 to 2552. [2024-11-08 17:35:17,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2552 states, 2550 states have (on average 1.5635294117647058) internal successors, (3987), 2551 states have internal predecessors, (3987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:17,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2552 states to 2552 states and 3987 transitions. [2024-11-08 17:35:17,887 INFO L78 Accepts]: Start accepts. Automaton has 2552 states and 3987 transitions. Word has length 92 [2024-11-08 17:35:17,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:17,888 INFO L471 AbstractCegarLoop]: Abstraction has 2552 states and 3987 transitions. [2024-11-08 17:35:17,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:17,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2552 states and 3987 transitions. [2024-11-08 17:35:17,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 17:35:17,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:17,891 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:17,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:35:17,892 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:17,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:17,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1316964293, now seen corresponding path program 1 times [2024-11-08 17:35:17,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:17,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356517904] [2024-11-08 17:35:17,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:17,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:18,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:18,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:18,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356517904] [2024-11-08 17:35:18,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356517904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:18,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:18,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:35:18,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353031530] [2024-11-08 17:35:18,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:18,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:35:18,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:18,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:35:18,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:35:18,826 INFO L87 Difference]: Start difference. First operand 2552 states and 3987 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:19,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:19,512 INFO L93 Difference]: Finished difference Result 2783 states and 4355 transitions. [2024-11-08 17:35:19,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:35:19,513 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-08 17:35:19,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:19,522 INFO L225 Difference]: With dead ends: 2783 [2024-11-08 17:35:19,523 INFO L226 Difference]: Without dead ends: 2554 [2024-11-08 17:35:19,524 INFO L431 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 [2024-11-08 17:35:19,525 INFO L432 NwaCegarLoop]: 1597 mSDtfsCounter, 4611 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4611 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:19,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4611 Valid, 2282 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:35:19,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2554 states. [2024-11-08 17:35:19,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2554 to 2552. [2024-11-08 17:35:19,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2552 states, 2550 states have (on average 1.5627450980392157) internal successors, (3985), 2551 states have internal predecessors, (3985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:19,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2552 states to 2552 states and 3985 transitions. [2024-11-08 17:35:19,587 INFO L78 Accepts]: Start accepts. Automaton has 2552 states and 3985 transitions. Word has length 92 [2024-11-08 17:35:19,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:19,588 INFO L471 AbstractCegarLoop]: Abstraction has 2552 states and 3985 transitions. [2024-11-08 17:35:19,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:19,588 INFO L276 IsEmpty]: Start isEmpty. Operand 2552 states and 3985 transitions. [2024-11-08 17:35:19,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 17:35:19,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:19,590 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:19,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:35:19,590 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:19,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:19,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1709057062, now seen corresponding path program 1 times [2024-11-08 17:35:19,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:19,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595041720] [2024-11-08 17:35:19,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:19,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:19,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:19,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:19,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595041720] [2024-11-08 17:35:19,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595041720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:19,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:19,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:35:19,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403696649] [2024-11-08 17:35:19,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:19,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:35:19,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:19,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:35:19,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:35:19,935 INFO L87 Difference]: Start difference. First operand 2552 states and 3985 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 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) [2024-11-08 17:35:19,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:19,992 INFO L93 Difference]: Finished difference Result 2560 states and 3994 transitions. [2024-11-08 17:35:19,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:35:19,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 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 [2024-11-08 17:35:19,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:20,002 INFO L225 Difference]: With dead ends: 2560 [2024-11-08 17:35:20,002 INFO L226 Difference]: Without dead ends: 2558 [2024-11-08 17:35:20,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:35:20,004 INFO L432 NwaCegarLoop]: 1603 mSDtfsCounter, 0 mSDsluCounter, 4800 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6403 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:20,005 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6403 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:20,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2558 states. [2024-11-08 17:35:20,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2558 to 2558. [2024-11-08 17:35:20,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2558 states, 2556 states have (on average 1.5610328638497653) internal successors, (3990), 2557 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:20,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2558 states to 2558 states and 3990 transitions. [2024-11-08 17:35:20,066 INFO L78 Accepts]: Start accepts. Automaton has 2558 states and 3990 transitions. Word has length 93 [2024-11-08 17:35:20,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:20,067 INFO L471 AbstractCegarLoop]: Abstraction has 2558 states and 3990 transitions. [2024-11-08 17:35:20,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 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) [2024-11-08 17:35:20,067 INFO L276 IsEmpty]: Start isEmpty. Operand 2558 states and 3990 transitions. [2024-11-08 17:35:20,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:35:20,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:20,069 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:20,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:35:20,069 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:20,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:20,070 INFO L85 PathProgramCache]: Analyzing trace with hash -290375813, now seen corresponding path program 1 times [2024-11-08 17:35:20,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:20,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206967757] [2024-11-08 17:35:20,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:20,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:20,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:20,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:20,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206967757] [2024-11-08 17:35:20,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206967757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:20,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:20,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:20,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834856469] [2024-11-08 17:35:20,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:20,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:20,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:20,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:20,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:20,200 INFO L87 Difference]: Start difference. First operand 2558 states and 3990 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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) [2024-11-08 17:35:20,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:20,326 INFO L93 Difference]: Finished difference Result 3012 states and 4702 transitions. [2024-11-08 17:35:20,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:20,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 [2024-11-08 17:35:20,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:20,341 INFO L225 Difference]: With dead ends: 3012 [2024-11-08 17:35:20,342 INFO L226 Difference]: Without dead ends: 2777 [2024-11-08 17:35:20,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:20,345 INFO L432 NwaCegarLoop]: 1683 mSDtfsCounter, 1527 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:20,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 1788 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:35:20,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2024-11-08 17:35:20,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 2775. [2024-11-08 17:35:20,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2775 states, 2773 states have (on average 1.560403894698882) internal successors, (4327), 2774 states have internal predecessors, (4327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:20,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 4327 transitions. [2024-11-08 17:35:20,408 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 4327 transitions. Word has length 94 [2024-11-08 17:35:20,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:20,409 INFO L471 AbstractCegarLoop]: Abstraction has 2775 states and 4327 transitions. [2024-11-08 17:35:20,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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) [2024-11-08 17:35:20,409 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 4327 transitions. [2024-11-08 17:35:20,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:35:20,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:20,411 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:20,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:35:20,411 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:20,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:20,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1651693691, now seen corresponding path program 1 times [2024-11-08 17:35:20,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:20,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249300825] [2024-11-08 17:35:20,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:20,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:20,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:20,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:20,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249300825] [2024-11-08 17:35:20,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249300825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:20,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:20,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:20,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92570021] [2024-11-08 17:35:20,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:20,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:20,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:20,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:20,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:20,542 INFO L87 Difference]: Start difference. First operand 2775 states and 4327 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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) [2024-11-08 17:35:20,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:20,607 INFO L93 Difference]: Finished difference Result 3647 states and 5685 transitions. [2024-11-08 17:35:20,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:20,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 [2024-11-08 17:35:20,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:20,619 INFO L225 Difference]: With dead ends: 3647 [2024-11-08 17:35:20,620 INFO L226 Difference]: Without dead ends: 3195 [2024-11-08 17:35:20,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:20,624 INFO L432 NwaCegarLoop]: 1681 mSDtfsCounter, 1525 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 1790 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 [2024-11-08 17:35:20,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 1790 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:20,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3195 states. [2024-11-08 17:35:20,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3195 to 3193. [2024-11-08 17:35:20,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3193 states, 3191 states have (on average 1.5571921027890943) internal successors, (4969), 3192 states have internal predecessors, (4969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:20,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3193 states to 3193 states and 4969 transitions. [2024-11-08 17:35:20,707 INFO L78 Accepts]: Start accepts. Automaton has 3193 states and 4969 transitions. Word has length 94 [2024-11-08 17:35:20,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:20,708 INFO L471 AbstractCegarLoop]: Abstraction has 3193 states and 4969 transitions. [2024-11-08 17:35:20,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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) [2024-11-08 17:35:20,708 INFO L276 IsEmpty]: Start isEmpty. Operand 3193 states and 4969 transitions. [2024-11-08 17:35:20,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:35:20,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:20,710 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:20,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:35:20,710 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:20,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:20,715 INFO L85 PathProgramCache]: Analyzing trace with hash 2078464635, now seen corresponding path program 1 times [2024-11-08 17:35:20,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:20,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139278559] [2024-11-08 17:35:20,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:20,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:20,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:20,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:20,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:20,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139278559] [2024-11-08 17:35:20,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139278559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:20,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:20,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:20,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685996209] [2024-11-08 17:35:20,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:20,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:20,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:20,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:20,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:20,836 INFO L87 Difference]: Start difference. First operand 3193 states and 4969 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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) [2024-11-08 17:35:20,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:20,907 INFO L93 Difference]: Finished difference Result 4869 states and 7555 transitions. [2024-11-08 17:35:20,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:20,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 [2024-11-08 17:35:20,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:20,930 INFO L225 Difference]: With dead ends: 4869 [2024-11-08 17:35:20,930 INFO L226 Difference]: Without dead ends: 3999 [2024-11-08 17:35:20,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:20,933 INFO L432 NwaCegarLoop]: 1669 mSDtfsCounter, 1521 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 1786 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 [2024-11-08 17:35:20,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 1786 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:20,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3999 states. [2024-11-08 17:35:21,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3999 to 3997. [2024-11-08 17:35:21,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3997 states, 3995 states have (on average 1.5491864831038797) internal successors, (6189), 3996 states have internal predecessors, (6189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:21,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3997 states to 3997 states and 6189 transitions. [2024-11-08 17:35:21,055 INFO L78 Accepts]: Start accepts. Automaton has 3997 states and 6189 transitions. Word has length 94 [2024-11-08 17:35:21,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:21,056 INFO L471 AbstractCegarLoop]: Abstraction has 3997 states and 6189 transitions. [2024-11-08 17:35:21,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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) [2024-11-08 17:35:21,056 INFO L276 IsEmpty]: Start isEmpty. Operand 3997 states and 6189 transitions. [2024-11-08 17:35:21,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:35:21,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:21,058 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:21,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 17:35:21,058 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:21,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:21,059 INFO L85 PathProgramCache]: Analyzing trace with hash -978240645, now seen corresponding path program 1 times [2024-11-08 17:35:21,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:21,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940728676] [2024-11-08 17:35:21,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:21,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:21,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:21,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:21,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940728676] [2024-11-08 17:35:21,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940728676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:21,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:21,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:21,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351832790] [2024-11-08 17:35:21,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:21,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:21,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:21,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:21,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:21,205 INFO L87 Difference]: Start difference. First operand 3997 states and 6189 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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) [2024-11-08 17:35:21,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:21,316 INFO L93 Difference]: Finished difference Result 7217 states and 11103 transitions. [2024-11-08 17:35:21,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:21,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 [2024-11-08 17:35:21,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:21,339 INFO L225 Difference]: With dead ends: 7217 [2024-11-08 17:35:21,342 INFO L226 Difference]: Without dead ends: 5543 [2024-11-08 17:35:21,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:21,347 INFO L432 NwaCegarLoop]: 1667 mSDtfsCounter, 1519 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1788 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 [2024-11-08 17:35:21,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1788 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:21,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5543 states. [2024-11-08 17:35:21,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5543 to 5541. [2024-11-08 17:35:21,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5541 states, 5539 states have (on average 1.5347535656255642) internal successors, (8501), 5540 states have internal predecessors, (8501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:21,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5541 states to 5541 states and 8501 transitions. [2024-11-08 17:35:21,514 INFO L78 Accepts]: Start accepts. Automaton has 5541 states and 8501 transitions. Word has length 94 [2024-11-08 17:35:21,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:21,515 INFO L471 AbstractCegarLoop]: Abstraction has 5541 states and 8501 transitions. [2024-11-08 17:35:21,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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) [2024-11-08 17:35:21,515 INFO L276 IsEmpty]: Start isEmpty. Operand 5541 states and 8501 transitions. [2024-11-08 17:35:21,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:35:21,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:21,519 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:21,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:35:21,519 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:21,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:21,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1101257851, now seen corresponding path program 1 times [2024-11-08 17:35:21,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:21,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233516079] [2024-11-08 17:35:21,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:21,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:21,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:21,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:21,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233516079] [2024-11-08 17:35:21,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233516079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:21,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:21,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:21,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530495101] [2024-11-08 17:35:21,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:21,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:21,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:21,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:21,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:21,630 INFO L87 Difference]: Start difference. First operand 5541 states and 8501 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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) [2024-11-08 17:35:21,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:21,805 INFO L93 Difference]: Finished difference Result 11721 states and 17815 transitions. [2024-11-08 17:35:21,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:21,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 [2024-11-08 17:35:21,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:21,830 INFO L225 Difference]: With dead ends: 11721 [2024-11-08 17:35:21,830 INFO L226 Difference]: Without dead ends: 8503 [2024-11-08 17:35:21,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:21,837 INFO L432 NwaCegarLoop]: 1665 mSDtfsCounter, 1517 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1790 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 [2024-11-08 17:35:21,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1790 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:21,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8503 states. [2024-11-08 17:35:22,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8503 to 8501. [2024-11-08 17:35:22,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8501 states, 8499 states have (on average 1.5141781386045416) internal successors, (12869), 8500 states have internal predecessors, (12869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:22,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8501 states to 8501 states and 12869 transitions. [2024-11-08 17:35:22,220 INFO L78 Accepts]: Start accepts. Automaton has 8501 states and 12869 transitions. Word has length 94 [2024-11-08 17:35:22,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:22,220 INFO L471 AbstractCegarLoop]: Abstraction has 8501 states and 12869 transitions. [2024-11-08 17:35:22,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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) [2024-11-08 17:35:22,221 INFO L276 IsEmpty]: Start isEmpty. Operand 8501 states and 12869 transitions. [2024-11-08 17:35:22,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:35:22,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:22,222 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:22,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 17:35:22,223 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:22,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:22,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1412776581, now seen corresponding path program 1 times [2024-11-08 17:35:22,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:22,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748018160] [2024-11-08 17:35:22,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:22,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:22,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:22,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:22,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748018160] [2024-11-08 17:35:22,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748018160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:22,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:22,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:22,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182345583] [2024-11-08 17:35:22,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:22,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:22,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:22,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:22,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:22,342 INFO L87 Difference]: Start difference. First operand 8501 states and 12869 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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) [2024-11-08 17:35:22,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:22,635 INFO L93 Difference]: Finished difference Result 20345 states and 30471 transitions. [2024-11-08 17:35:22,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:22,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 [2024-11-08 17:35:22,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:22,664 INFO L225 Difference]: With dead ends: 20345 [2024-11-08 17:35:22,664 INFO L226 Difference]: Without dead ends: 14167 [2024-11-08 17:35:22,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:22,675 INFO L432 NwaCegarLoop]: 1663 mSDtfsCounter, 1515 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1792 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 [2024-11-08 17:35:22,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1792 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:22,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14167 states. [2024-11-08 17:35:23,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14167 to 14165. [2024-11-08 17:35:23,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14165 states, 14163 states have (on average 1.4893031137470876) internal successors, (21093), 14164 states have internal predecessors, (21093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:23,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14165 states to 14165 states and 21093 transitions. [2024-11-08 17:35:23,168 INFO L78 Accepts]: Start accepts. Automaton has 14165 states and 21093 transitions. Word has length 94 [2024-11-08 17:35:23,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:23,168 INFO L471 AbstractCegarLoop]: Abstraction has 14165 states and 21093 transitions. [2024-11-08 17:35:23,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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) [2024-11-08 17:35:23,169 INFO L276 IsEmpty]: Start isEmpty. Operand 14165 states and 21093 transitions. [2024-11-08 17:35:23,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:35:23,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:23,170 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:23,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 17:35:23,171 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:23,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:23,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1814608251, now seen corresponding path program 1 times [2024-11-08 17:35:23,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:23,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325251098] [2024-11-08 17:35:23,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:23,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:23,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:23,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:23,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325251098] [2024-11-08 17:35:23,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325251098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:23,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:23,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:23,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523008377] [2024-11-08 17:35:23,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:23,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:23,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:23,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:23,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:23,287 INFO L87 Difference]: Start difference. First operand 14165 states and 21093 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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) [2024-11-08 17:35:23,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:23,872 INFO L93 Difference]: Finished difference Result 36825 states and 54247 transitions. [2024-11-08 17:35:23,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:23,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 [2024-11-08 17:35:23,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:23,919 INFO L225 Difference]: With dead ends: 36825 [2024-11-08 17:35:23,919 INFO L226 Difference]: Without dead ends: 24983 [2024-11-08 17:35:23,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:23,936 INFO L432 NwaCegarLoop]: 1679 mSDtfsCounter, 1523 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1792 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 [2024-11-08 17:35:23,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1792 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:23,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24983 states. [2024-11-08 17:35:24,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24983 to 24981. [2024-11-08 17:35:24,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24981 states, 24979 states have (on average 1.4619080027222868) internal successors, (36517), 24980 states have internal predecessors, (36517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:24,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24981 states to 24981 states and 36517 transitions. [2024-11-08 17:35:24,688 INFO L78 Accepts]: Start accepts. Automaton has 24981 states and 36517 transitions. Word has length 94 [2024-11-08 17:35:24,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:24,688 INFO L471 AbstractCegarLoop]: Abstraction has 24981 states and 36517 transitions. [2024-11-08 17:35:24,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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) [2024-11-08 17:35:24,689 INFO L276 IsEmpty]: Start isEmpty. Operand 24981 states and 36517 transitions. [2024-11-08 17:35:24,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 17:35:24,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:24,690 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:24,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 17:35:24,690 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:24,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:24,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1683181226, now seen corresponding path program 1 times [2024-11-08 17:35:24,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:24,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469281742] [2024-11-08 17:35:24,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:24,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:24,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:35:24,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:24,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469281742] [2024-11-08 17:35:24,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469281742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:24,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:24,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:35:24,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737137204] [2024-11-08 17:35:24,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:24,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:35:24,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:24,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:35:24,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:24,815 INFO L87 Difference]: Start difference. First operand 24981 states and 36517 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:25,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:25,890 INFO L93 Difference]: Finished difference Result 48540 states and 71083 transitions. [2024-11-08 17:35:25,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:35:25,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-08 17:35:25,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:25,964 INFO L225 Difference]: With dead ends: 48540 [2024-11-08 17:35:25,965 INFO L226 Difference]: Without dead ends: 35993 [2024-11-08 17:35:25,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:35:25,988 INFO L432 NwaCegarLoop]: 1688 mSDtfsCounter, 1526 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 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 [2024-11-08 17:35:25,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:35:26,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35993 states. [2024-11-08 17:35:27,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35993 to 35991. [2024-11-08 17:35:27,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35991 states, 35989 states have (on average 1.4521937258606796) internal successors, (52263), 35990 states have internal predecessors, (52263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:27,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35991 states to 35991 states and 52263 transitions. [2024-11-08 17:35:27,209 INFO L78 Accepts]: Start accepts. Automaton has 35991 states and 52263 transitions. Word has length 96 [2024-11-08 17:35:27,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:27,209 INFO L471 AbstractCegarLoop]: Abstraction has 35991 states and 52263 transitions. [2024-11-08 17:35:27,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:27,210 INFO L276 IsEmpty]: Start isEmpty. Operand 35991 states and 52263 transitions. [2024-11-08 17:35:27,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 17:35:27,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:27,217 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:35:27,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 17:35:27,218 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:27,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:27,219 INFO L85 PathProgramCache]: Analyzing trace with hash 2033252381, now seen corresponding path program 1 times [2024-11-08 17:35:27,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:27,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128990650] [2024-11-08 17:35:27,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:27,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:27,610 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 17:35:27,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:27,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128990650] [2024-11-08 17:35:27,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128990650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:27,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:27,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:35:27,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879704092] [2024-11-08 17:35:27,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:27,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:35:27,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:27,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:35:27,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:35:27,615 INFO L87 Difference]: Start difference. First operand 35991 states and 52263 transitions. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:33,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:33,641 INFO L93 Difference]: Finished difference Result 312105 states and 450864 transitions. [2024-11-08 17:35:33,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:35:33,642 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 119 [2024-11-08 17:35:33,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:34,247 INFO L225 Difference]: With dead ends: 312105 [2024-11-08 17:35:34,248 INFO L226 Difference]: Without dead ends: 278439 [2024-11-08 17:35:34,354 INFO L431 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 [2024-11-08 17:35:34,355 INFO L432 NwaCegarLoop]: 1709 mSDtfsCounter, 11752 mSDsluCounter, 3377 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11752 SdHoareTripleChecker+Valid, 5086 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:34,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11752 Valid, 5086 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:35:34,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278439 states. [2024-11-08 17:35:38,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278439 to 69655. [2024-11-08 17:35:38,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69655 states, 69653 states have (on average 1.4431395632636068) internal successors, (100519), 69654 states have internal predecessors, (100519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:38,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69655 states to 69655 states and 100519 transitions. [2024-11-08 17:35:38,666 INFO L78 Accepts]: Start accepts. Automaton has 69655 states and 100519 transitions. Word has length 119 [2024-11-08 17:35:38,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:38,666 INFO L471 AbstractCegarLoop]: Abstraction has 69655 states and 100519 transitions. [2024-11-08 17:35:38,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:38,667 INFO L276 IsEmpty]: Start isEmpty. Operand 69655 states and 100519 transitions. [2024-11-08 17:35:38,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 17:35:38,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:38,677 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:35:38,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 17:35:38,677 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:38,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:38,678 INFO L85 PathProgramCache]: Analyzing trace with hash -319645411, now seen corresponding path program 1 times [2024-11-08 17:35:38,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:38,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470244625] [2024-11-08 17:35:38,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:38,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:39,268 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 17:35:39,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:39,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470244625] [2024-11-08 17:35:39,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470244625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:39,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:39,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:35:39,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451076017] [2024-11-08 17:35:39,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:39,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:35:39,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:39,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:35:39,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:35:39,273 INFO L87 Difference]: Start difference. First operand 69655 states and 100519 transitions. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:47,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:35:47,299 INFO L93 Difference]: Finished difference Result 345769 states and 499120 transitions. [2024-11-08 17:35:47,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:35:47,300 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 119 [2024-11-08 17:35:47,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:35:47,956 INFO L225 Difference]: With dead ends: 345769 [2024-11-08 17:35:47,956 INFO L226 Difference]: Without dead ends: 312103 [2024-11-08 17:35:48,012 INFO L431 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 [2024-11-08 17:35:48,013 INFO L432 NwaCegarLoop]: 1706 mSDtfsCounter, 11802 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11802 SdHoareTripleChecker+Valid, 4880 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:35:48,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11802 Valid, 4880 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:35:48,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312103 states. [2024-11-08 17:35:53,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312103 to 120215. [2024-11-08 17:35:53,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120215 states, 120213 states have (on average 1.4356433996323192) internal successors, (172583), 120214 states have internal predecessors, (172583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:54,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120215 states to 120215 states and 172583 transitions. [2024-11-08 17:35:54,273 INFO L78 Accepts]: Start accepts. Automaton has 120215 states and 172583 transitions. Word has length 119 [2024-11-08 17:35:54,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:35:54,273 INFO L471 AbstractCegarLoop]: Abstraction has 120215 states and 172583 transitions. [2024-11-08 17:35:54,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:35:54,274 INFO L276 IsEmpty]: Start isEmpty. Operand 120215 states and 172583 transitions. [2024-11-08 17:35:54,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 17:35:54,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:35:54,292 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:35:54,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 17:35:54,293 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:35:54,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:54,293 INFO L85 PathProgramCache]: Analyzing trace with hash 107125533, now seen corresponding path program 1 times [2024-11-08 17:35:54,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:54,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290179403] [2024-11-08 17:35:54,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:54,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:54,699 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 17:35:54,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:54,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290179403] [2024-11-08 17:35:54,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290179403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:54,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:54,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:35:54,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93714426] [2024-11-08 17:35:54,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:54,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:35:54,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:54,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:35:54,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:35:54,702 INFO L87 Difference]: Start difference. First operand 120215 states and 172583 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:36:03,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:36:03,946 INFO L93 Difference]: Finished difference Result 379433 states and 547376 transitions. [2024-11-08 17:36:03,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:36:03,947 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 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 119 [2024-11-08 17:36:03,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:36:04,414 INFO L225 Difference]: With dead ends: 379433 [2024-11-08 17:36:04,414 INFO L226 Difference]: Without dead ends: 345767 [2024-11-08 17:36:04,485 INFO L431 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 [2024-11-08 17:36:04,485 INFO L432 NwaCegarLoop]: 1703 mSDtfsCounter, 11875 mSDsluCounter, 3171 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11875 SdHoareTripleChecker+Valid, 4874 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:36:04,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11875 Valid, 4874 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:36:04,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345767 states.